特性
- True Dual-Ported memory cells which allow simultaneous reads of the same memory location
- Separate upper-byte and lower-byte control for multiplexed bus compatibility
- 7025 easily expands data bus width to 32 bits or more
- Interrupt Flag and On-chip port arbitration logic
- Full on-chip hardware support of semaphore signaling
- between ports
- Fully asynchronous operation from either port
- Battery backup operation—2V data retention
- TTL-compatible, single 5V (±10%) power supply
- Available in 84-pin PGA, Flatpack, PLCC, and 100-pin TQFP packages
- Industrial temperature range (–40C to +85C) is available
描述
The 7025 is a high-speed 8K x 16 Dual-Port Static RAM designed to be used as a stand-alone 128K-bit Dual-Port RAM or as a combination MASTER/SLAVE Dual-Port RAM for 32-bit or more word systems. An automatic power down feature controlled by Chip Enable (CE) permits the on-chip circuitry of each port to enter a very low standby power mode. Military grade product in compliance with MIL-PRF-38535 QML is available.
产品参数
| 属性 | 值 |
|---|---|
| Core Voltage (V) | 5 |
| Bus Width (bits) | 16 |
| Density (Kb) | 128 |
| Pkg. Code | GU84, PNG100 |
| Interface | Async |
| I/O Type | 5.0 V TTL |
| Access Time (ns) | 15, 20, 25, 35, 55 |
| Temp. Range (°C) | -40 to 85°C, 0 to 70°C |
| Architecture | Dual-Port |
| Organization | 8K x 16 |
| Function | Busy, Interrupt, Master, Semaphore, Slave |