Features
- True Dual-Ported memory cells which allow simultaneous access of the same memory location
- Fully asynchronous operation from either port
- Full on-chip hardware support of semaphore signaling between ports
- Battery backup operation—2V data retention (LA only)
- TTL-compatible
- single 5V (±10%) power supply
- Available in 52-pin PLCC and 64-pin TQFP packages
- Industrial temperature range (–40C to +85C) is available
71342 - Block Diagram
Description
The 71342 is a high-speed 4K x 8 Dual-Port Static RAM containing a fully independent semaphore logic block to assist in arbitrating between ports. This block contains unassigned flags which can be accessed by either side, however, only one side can control the flag at any time. An automatic power down feature, controlled by CE and SEM, permits the on-chip circuitry of each port to enter a very low standby power mode (both CE and SEM HIGH).
Parameters
| Attributes | Value |
|---|---|
| Core Voltage (V) | 5 |
| Bus Width (bits) | 8 |
| Density (Kb) | 32 |
| Pkg. Code | PNG64 |
| Interface | Async |
| I/O Type | 5.0 V TTL |
| Access Time (ns) | 20, 25 |
| Temp. Range (°C) | -40 to 85°C, 0 to 70°C |
| Architecture | Dual-Port |
| Organization | 4K x 8 |
| Function | Semaphore |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| TQFP | 14.0 x 14.0 x 1.4 | 64 | 0.8 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 71342LA20PFG | Active | Available | Out of Stock | TQFP | 1ku | $20.56 | 64# | C | Yes | Tray | 3 | TAIWAN | TAIWAN, USA |
| 71342LA20PFG8 | Active | N/A | Out of Stock | TQFP | 1ku | $20.56 | 64# | C | Yes | Reel | 3 | TAIWAN | TAIWAN, USA |
| 71342LA25PFGI | Active | Available | In Stock | TQFP | 1ku | $21.15 | 64# | I | Yes | Tray | 3 | TAIWAN | TAIWAN, USA |
| 71342LA25PFGI8 | Active | N/A | Out of Stock | TQFP | 1ku | $21.15 | 64# | I | Yes | Reel | 3 | TAIWAN | TAIWAN, USA |
| 71342LA20J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71342LA20J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71342LA20JG | Obsolete | N/A | In Stock | PLCC | 52# | C | Yes | Tube | 3 | |||
| 71342LA20JG8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | Yes | Reel | 3 | |||
| 71342LA20PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71342LA20PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71342LA25J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71342LA25J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71342LA25JGI | Obsolete | N/A | Out of Stock | PLCC | 1ku | $19.34 | 52# | I | Yes | Tube | 3 | PHILIPPINES | TAIWAN, UNITED STATES |
| 71342LA25JGI8 | Obsolete | N/A | In Stock | PLCC | 52# | I | Yes | Reel | 3 | |||
| 71342LA25JI | Obsolete | N/A | Out of Stock | PLCC | 52# | I | No | Tube | 3 | |||
| 71342LA25JI8 | Obsolete | N/A | Out of Stock | PLCC | 52# | I | No | Reel | 3 | |||
| 71342LA25PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71342LA25PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71342LA25PFI | Obsolete | N/A | Out of Stock | TQFP | 64# | I | No | Tray | 3 | |||
| 71342LA25PFI8 | Obsolete | N/A | Out of Stock | TQFP | 64# | I | No | Reel | 3 | |||
| 71342LA35J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71342LA35J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71342LA35PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71342LA35PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71342LA45J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71342LA45J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71342LA55J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71342LA55J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71342LA55PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71342LA55PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71342LA70J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71342LA70J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71342SA20J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71342SA20J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71342SA20PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71342SA20PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71342SA25J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71342SA25J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71342SA25PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71342SA25PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71342SA35J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71342SA35J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71342SA35PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71342SA35PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71342SA45J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71342SA45J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71342SA55J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71342SA55J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71342SA55PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71342SA55PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71342SA70J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71342SA70J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 |
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- Product Change NoticePDF 24 KB 7WDXRDKU4E7E-5-41812 Nov 14, 2012
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- Product Change NoticePDF 223 KB 7WDXRDKU4E7E-5-41816 Oct 07, 2006
- Application NotePDF 197 KB 7WDXRDKU4E7E-5-37103 Jun 01, 2006
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- Application NotePDF 183 KB 7WDXRDKU4E7E-5-37127 May 30, 2006
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- 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
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- Application NotePDF 197 KB 7WDXRDKU4E7E-5-37103 Jun 01, 2006
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DSPS_HOST makes DSPS_SLAVE sleep
Hi Dialog Q1 : I am using DSPS project , i want my DSPS_HOST makes DSPS_DEVICE into sleep and wake up from sleep , how to do this ?? Q2 : i am having DSPS_DEVICE code running in multiple BLE devices , when DSPS_HOST scans , does scan data consist all available BLE ...
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