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Explore ECAD Models
Overview
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.
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
Documentation
| Title | Type | Date | |
|---|---|---|---|
PDF401 KB
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Datasheet
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PDF129 KB
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Application Note
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PDF197 KB
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Application Note
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Application Note
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PDF156 KB
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Application Note
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PDF97 KB
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Application Note
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PDF645 KB
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End Of Life Notice
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PDF123 KB
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Guide
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PDF157 KB
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Product Change Notice
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PDF567 KB
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Product Change Notice
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PDF611 KB
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Product Change Notice
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PDF611 KB
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Product Change Notice
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PDF95 KB
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Product Change Notice
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PDF50 KB
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Product Change Notice
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PDF24 KB
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Product Change Notice
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PDF252 KB
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Product Change Notice
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PDF223 KB
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Product Change Notice
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PDF164 KB
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Product Change Notice
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PDF729 KB
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Product Change Notice
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PDF290 KB
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Product Change Notice
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PDF80 KB
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Product Change Notice
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PDF26 KB
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Product Change Notice
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PDF134 KB
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Product Change Notice
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PDF150 KB
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Product Change Notice
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PDF65 KB
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Product Change Notice
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PDF150 KB
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Product Change Notice
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PDF48 KB
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Product Change Notice
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PDF40 KB
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Product Change Notice
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PDF39 KB
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Product Change Notice
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PDF47 KB
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Product Change Notice
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PDF274 KB
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Product Change Notice
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Product Change Notice
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Design & Development
Software & Tools
Models
ECAD Models
Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Product Options
Processing table
Part Number |
Pkg. Type |
Lead Count (#) |
Temp. Grade |
Pb (Lead) Free |
Carrier Type |
Buy / Sample |
|---|---|---|---|---|---|---|
| PLCC | 52 | C | Yes | Tube | Get Samples, | |
| PLCC | 52 | C | Yes | Reel | ||
| TQFP | 64 | C | Yes | Tray | Get Samples, | |
| TQFP | 64 | C | Yes | Reel | ||
| TQFP | 64 | C | Yes | Tray | Get Samples, | |
| TQFP | 64 | C | Yes | Reel | ||
| PLCC | 52 | I | Yes | Tube | Get Samples, | |
| PLCC | 52 | I | Yes | Reel | ||
| TQFP | 64 | I | Yes | Tray | Get Samples, | |
| TQFP | 64 | I | Yes | Reel | ||
| TQFP | 64 | I | Yes | Tray | Get Samples, | |
| TQFP | 64 | I | Yes | Reel | ||
| TQFP | 64 | C | Yes | Tray | Get Samples, | |
| TQFP | 64 | C | Yes | Reel | ||
| TQFP | 64 | C | Yes | Tray | Get Samples, | |
| TQFP | 64 | C | Yes | Reel | ||
| PLCC | 52 | C | Yes | Tube | Get Samples, | |
| PLCC | 52 | C | Yes | Reel | ||
| TQFP | 52 | I | Yes | Tray | Get Samples, | |
| TQFP | 52 | I | Yes | Reel |
Tips for Using This Parametric Table:
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- Export button in header: Export the filtered results of the table to an Excel document
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- Hide column button in column headers: Select to hide columns in table
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- Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
- Document icon next to product name in row: View the featured document for this product
- Chip icon next to the right of the document icon in row: View the block diagram for this product
- Cart icon to the right of the chip icon: Indicates that samples are available for this product