Features
- True Dual-Ported memory cells which allow simultaneous access of the same memory location
- Two INT flags for port-to-port communications
- Easily expands data bus width to 16-or more- bits using SLAVE 71421
- On-chip port arbitration logic
- BUSY output flag
- Fully asynchronous operation from either port
- Battery backup operation – 2V data retention (LA only)
- TTL-compatible, single 5V ±10% power supply
- Available in 52-Pin PLCC and TQFP, 64-Pin TQFP and STQFP packages
- Industrial temperature range (-40C to +85C) is available
71321 - Block Diagram
Description
The 71321 is a high-speed 2K x 8 Dual-Port Static RAM with internal interrupt logic for interprocessor communications. It is designed to be used as a stand-alone 8-bit Dual-Port RAM or as a "MASTER" Dual-Port RAM together with the 71421 "SLAVE" Dual-Port in 16-bit-or-more word width systems which would result in full-speed, error free operation without the need for additional discrete logic. An automatic power down feature, controlled by CE, permits the on chip circuitry of each port to enter a very low standby power mode.
Parameters
| Attributes | Value |
|---|---|
| Core Voltage (V) | 5 |
| Bus Width (bits) | 8 |
| Density (Kb) | 16 |
| Pkg. Code | PNG64, PPG52, PPG64 |
| Interface | Async |
| I/O Type | 5.0 V TTL |
| Access Time (ns) | 20, 25, 55 |
| Temp. Range (°C) | -40 to 85°C, 0 to 70°C |
| Architecture | Dual-Port |
| Organization | 2K x 8 |
| Function | Busy, Interrupt, Master |
| Part Number | Status | Samples | Stock | Package | Budgetary Price (USD) | Lead Count (#) | Temp. Grade | Pb (Lead) Free | Carrier Type | Moisture Sensitivity Level (MSL) | Country of Assembly | Country of Wafer Fabrication |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 71321LA20PFG | Active | Available | In Stock | TQFP | 1ku | $19.75 | 64# | C | Yes | Tray | 3 | TAIWAN | TAIWAN, USA |
| 71321LA20PFG8 | Active | N/A | Out of Stock | TQFP | 1ku | $19.75 | 64# | C | Yes | Reel | 3 | TAIWAN | TAIWAN, USA |
| 71321LA20TFG | Active | Available | In Stock | TQFP | 1ku | $21.49 | 64# | C | Yes | Tray | 3 | TAIWAN | TAIWAN, USA |
| 71321LA20TFG8 | Active | N/A | Out of Stock | TQFP | 1ku | $21.49 | 64# | C | Yes | Reel | 3 | TAIWAN | TAIWAN, USA |
| 71321LA25PFGI | Active | Available | In Stock | TQFP | 1ku | $19.34 | 64# | I | Yes | Tray | 3 | TAIWAN | TAIWAN, USA |
| 71321LA25PFGI8 | Active | N/A | Out of Stock | TQFP | 1ku | $19.34 | 64# | I | Yes | Reel | 3 | TAIWAN | TAIWAN, USA |
| 71321LA25TFGI8 | Active | N/A | Out of Stock | TQFP | 1ku | $21.49 | 64# | I | Yes | Reel | 3 | TAIWAN | TAIWAN, USA |
| 71321LA55PPGI | Active | Available | In Stock | TQFP | 1ku | $12.04 | 52# | I | Yes | Tray | 3 | PHILIPPINES | TAIWAN |
| 71321LA55PPGI8 | Active | N/A | In Stock | TQFP | 1ku | $12.04 | 52# | I | Yes | Reel | 3 | PHILIPPINES | TAIWAN |
| 71321LA55TFG | Active | Available | Out of Stock | TQFP | 1ku | $12.04 | 64# | C | Yes | Tray | 3 | TAIWAN | TAIWAN, USA |
| 71321LA20J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71321LA20J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71321LA20JG | Obsolete | N/A | In Stock | PLCC | 52# | C | Yes | Tube | 3 | |||
| 71321LA20JG8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | Yes | Reel | 3 | |||
| 71321LA20PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71321LA20PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71321LA20TF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71321LA20TF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71321LA25J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71321LA25J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71321LA25JGI | Obsolete | N/A | Out of Stock | PLCC | 1ku | $16.04 | 52# | I | Yes | Tube | 3 | PHILIPPINES | TAIWAN, UNITED STATES |
| 71321LA25JGI8 | Obsolete | N/A | Out of Stock | PLCC | 52# | I | Yes | Reel | 3 | |||
| 71321LA25JI | Obsolete | N/A | Out of Stock | PLCC | 52# | I | No | Tube | 3 | |||
| 71321LA25JI8 | Obsolete | N/A | Out of Stock | PLCC | 52# | I | No | Reel | 3 | |||
| 71321LA25PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71321LA25PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71321LA25PFI | Obsolete | N/A | Out of Stock | TQFP | 64# | I | No | Tray | 3 | |||
| 71321LA25PFI8 | Obsolete | N/A | Out of Stock | TQFP | 64# | I | No | Reel | 3 | |||
| 71321LA25TF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71321LA25TF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71321LA25TFGI | Obsolete | N/A | Out of Stock | TQFP | 64# | I | Yes | Tray | 3 | |||
| 71321LA25TFI | Obsolete | N/A | Out of Stock | TQFP | 64# | I | No | Tray | 3 | |||
| 71321LA25TFI8 | Obsolete | N/A | Out of Stock | TQFP | 64# | I | No | Reel | 3 | |||
| 71321LA35J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71321LA35J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71321LA35PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71321LA35PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71321LA35TF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71321LA35TF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71321LA45J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71321LA45J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71321LA55J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71321LA55J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71321LA55PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71321LA55PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71321LA55TF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71321LA55TF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71321LA55TFG8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | Yes | Reel | 3 | |||
| 71321SA20J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71321SA20J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71321SA20PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71321SA20PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71321SA20TF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71321SA20TF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71321SA25J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71321SA25J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71321SA25PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71321SA25PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71321SA25TF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71321SA25TF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71321SA35J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71321SA35J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71321SA35PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71321SA35PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71321SA35TF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71321SA35TF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71321SA35TFG | Obsolete | N/A | Out of Stock | TQFP | 64# | C | Yes | Tray | 3 | |||
| 71321SA35TFG8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | Yes | Reel | 3 | |||
| 71321SA45J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71321SA45J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71321SA55J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71321SA55J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71321SA55JG | Obsolete | N/A | In Stock | PLCC | 1ku | $8.33 | 52# | C | Yes | Tube | 3 | PHILIPPINES | TAIWAN, UNITED STATES |
| 71321SA55JG8 | Obsolete | N/A | Out of Stock | PLCC | 1ku | $8.33 | 52# | C | Yes | Reel | 3 | PHILIPPINES | TAIWAN, UNITED STATES |
| 71321SA55JI | Obsolete | N/A | Out of Stock | PLCC | 52# | I | No | Tube | 3 | |||
| 71321SA55JI8 | Obsolete | N/A | Out of Stock | PLCC | 52# | I | No | Reel | 3 | |||
| 71321SA55PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71321SA55PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71321SA55TF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71321SA55TF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 |
Loading
Filters
Applied Filters
Log in required to subscribe
- Product Change NoticePDF 24 KB 7WDXRDKU4E7E-5-41812 Nov 14, 2012
- Product Change NoticePDF 252 KB 7WDXRDKU4E7E-5-41817 Oct 20, 2006
- Product Change NoticePDF 223 KB 7WDXRDKU4E7E-5-41816 Oct 07, 2006
- Application NotePDF 197 KB 7WDXRDKU4E7E-5-37103 Jun 01, 2006
- Application NotePDF 198 KB 7WDXRDKU4E7E-5-37102 May 31, 2006
- Application NotePDF 156 KB 7WDXRDKU4E7E-5-37101 May 30, 2006
- Application NotePDF 97 KB 7WDXRDKU4E7E-5-37100 May 30, 2006
- Product Change NoticePDF 164 KB 7WDXRDKU4E7E-5-41811 May 11, 2006
- Product Change NoticePDF 290 KB 7WDXRDKU4E7E-5-41712 Jul 19, 2005
- Product Change NoticePDF 80 KB 7WDXRDKU4E7E-5-41813 Dec 14, 2004
- Product Change NoticePDF 150 KB 7WDXRDKU4E7E-5-41738 Mar 20, 2003
Recommended Documents (1)
Datasheets (1)
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
- Application NotePDF 197 KB 7WDXRDKU4E7E-5-37103 Jun 01, 2006
- Application NotePDF 198 KB 7WDXRDKU4E7E-5-37102 May 31, 2006
- Application NotePDF 156 KB 7WDXRDKU4E7E-5-37101 May 30, 2006
- Application NotePDF 97 KB 7WDXRDKU4E7E-5-37100 May 30, 2006
Application Notes & White Papers (5)
- End Of Life NoticePDF 645 KB 7WDXRDKU4E7E-5-62027 Sep 14, 2017
- Product Change NoticePDF 157 KB 7WDXRDKU4E7E-5-61638 May 08, 2017
- Product Change NoticePDF 567 KB 7WDXRDKU4E7E-5-60948 Aug 26, 2016
- Product Change NoticePDF 611 KB 7WDXRDKU4E7E-5-60321 Apr 14, 2016View More (25)
Product Notices (PCN, EOL, etc) (25)
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
Loading
Filters
Applied Filters
Software & Tools
Filter by Type
Filter by Provider
Sample Code
Filter by Application
Filter by Function
Filter by Compiler
Filter by IDE
Simulation Models
Partner Solutions
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
Simulation Models (2)
No Results Found.
Check Spelling
Make sure all keywords are spelled correctly.
Make sure all keywords are spelled correctly.
Adjust Keywords
Try fewer, different, or more general terms to vary your search.
Try fewer, different, or more general terms to vary your search.
Review Filters
If you have filters applied, consider deselecting some to broaden your results.
If you have filters applied, consider deselecting some to broaden your results.
Need help?
- Search our extensive knowledgebase, designed to help customers with their FAQs.
- Get help from our expert Renesas technical staff and community on our support forums.
Support Communities
-
DSPS can work without cts and rts?
Hi,all. I saw a modulel dsps pcb .DSPS can work without CTS and RTS ,test out that the sleep electric current is performed. So ,that is to say,the RX interrupt can wake up the 14580 when 14580 in sleep. I test the function follow without CTS,RTS ,open ...
Dec 15, 2015
Support Communities
Get quick technical support online from Renesas Engineering Community technical staff.
Knowledge Base
Browse our knowledge base for helpful articles, FAQs, and other useful resources.
