Features
- True dual-ported memory cells allow simultaneous access of the same memory location
- Two INT flags for port-to-port communications
- On-chip port arbitration logic
- BUSY output flag
- Fully asynchronous operation from either port
- Battery backup operation—2V data retention (L only)
- TTL-compatible, single 3.3V power supply
- Available in 52-pin PLCC, 64-pin TQFP and STQFP packages
- Industrial temperature range (–40 °C to +85 °C) is available
71V321 - Block Diagram
Description
The 71V321 is a high-speed 2K x 8 dual-port static RAM with internal interrupt logic for interprocessor communications. The device provides two independent ports with separate control, address, and I/O pins that permit independent, asynchronous access for reads or writes to any location in memory. 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) | 3.3 |
| Bus Width (bits) | 8 |
| Density (Kb) | 16 |
| Pkg. Code | PNG64, PPG64 |
| Interface | Async |
| I/O Type | 3.3 V LVTTL |
| Access Time (ns) | 25, 35 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 71V321L25PFG | Active | Available | In Stock | TQFP | 1ku | $19.34 | 64# | C | Yes | Tray | 3 | TAIWAN | TAIWAN, USA |
| 71V321L25PFG8 | Active | N/A | Out of Stock | TQFP | 1ku | $19.34 | 64# | C | Yes | Reel | 3 | TAIWAN | TAIWAN, USA |
| 71V321L25PFGI | Active | Available | Out of Stock | TQFP | 1ku | $21.28 | 64# | I | Yes | Tray | 3 | TAIWAN | TAIWAN, USA |
| 71V321L25PFGI8 | Active | N/A | Out of Stock | TQFP | 1ku | $21.28 | 64# | I | Yes | Reel | 3 | TAIWAN | TAIWAN, USA |
| 71V321L25TFG | Active | Available | In Stock | TQFP | 1ku | $20.15 | 64# | C | Yes | Tray | 3 | TAIWAN | TAIWAN, USA |
| 71V321L25TFGI | Active | Available | In Stock | TQFP | 1ku | $22.21 | 64# | I | Yes | Tray | 3 | TAIWAN | TAIWAN, USA |
| 71V321L35PFGI | Active | Available | Out of Stock | TQFP | 1ku | $19.34 | 64# | I | Yes | Tray | 3 | TAIWAN | TAIWAN, USA |
| 71V321L35PFGI8 | Active | N/A | Out of Stock | TQFP | 1ku | $19.34 | 64# | I | Yes | Reel | 3 | TAIWAN | TAIWAN, USA |
| 71V321L25J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71V321L25J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71V321L25JG | Obsolete | N/A | In Stock | PLCC | 52# | C | Yes | Tube | 3 | |||
| 71V321L25JG8 | Obsolete | N/A | Out of Stock | PLCC | 1ku | $16.15 | 52# | C | Yes | Reel | 3 | PHILIPPINES | TAIWAN, UNITED STATES |
| 71V321L25JI | Obsolete | N/A | Out of Stock | PLCC | 52# | I | No | Tube | 3 | |||
| 71V321L25JI8 | Obsolete | N/A | Out of Stock | PLCC | 52# | I | No | Reel | 3 | |||
| 71V321L25PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71V321L25PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71V321L25PFI | Obsolete | N/A | Out of Stock | TQFP | 64# | I | No | Tray | 3 | |||
| 71V321L25PFI8 | Obsolete | N/A | Out of Stock | TQFP | 64# | I | No | Reel | 3 | |||
| 71V321L25TF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71V321L25TF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71V321L25TFG8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | Yes | Reel | 3 | |||
| 71V321L25TFI | Obsolete | N/A | Out of Stock | TQFP | 64# | I | No | Tray | 3 | |||
| 71V321L25TFI8 | Obsolete | N/A | Out of Stock | TQFP | 64# | I | No | Reel | 3 | |||
| 71V321L35J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71V321L35J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71V321L35JG | Obsolete | N/A | In Stock | PLCC | 52# | C | Yes | Tube | 3 | |||
| 71V321L35JG8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | Yes | Reel | 3 | |||
| 71V321L35JGI | Obsolete | N/A | In Stock | PLCC | 52# | I | Yes | Tube | 3 | |||
| 71V321L35JGI8 | Obsolete | N/A | Out of Stock | PLCC | 52# | I | Yes | Reel | 3 | |||
| 71V321L35PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71V321L35PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71V321L35TF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71V321L35TF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71V321L55J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71V321L55J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71V321L55PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71V321L55PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71V321L55TF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71V321L55TF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71V321S25J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71V321S25J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71V321S25PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71V321S25PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71V321S25TF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71V321S25TF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71V321S35J | Obsolete | N/A | In Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71V321S35J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71V321S35PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71V321S35PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71V321S35TF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71V321S35TF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71V321S55J | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Tube | 3 | |||
| 71V321S55J8 | Obsolete | N/A | Out of Stock | PLCC | 52# | C | No | Reel | 3 | |||
| 71V321S55PF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71V321S55PF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 | |||
| 71V321S55TF | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Tray | 3 | |||
| 71V321S55TF8 | Obsolete | N/A | Out of Stock | TQFP | 64# | C | No | Reel | 3 |
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- 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 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
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- Application NotePDF 197 KB 7WDXRDKU4E7E-5-37103 Jun 01, 2006
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