Features
- Dual-Ported allows simultaneous access of the same memory location
- Dual chip enables allow for depth expansion without external logic
- Easily expands data bus width to 36 bits or more
- Busy and Interrupt Flags
- On-chip port arbitration logic
- Full on-chip hardware support of semaphore signaling between ports
- Fully asynchronous operation from either port
- Separate upper-byte and lower-byte controls for multiplexed bus and bus matching compatibility
- LVTTL-compatible, single 3.3V (±0.3V) power supply
- Available in a 100-pin TQFP package
- Industrial temperature range (–40C to +85C) is available
70V38 - Block Diagram
Description
The 70V38 is a high-speed 64K x 18 Dual-Port Static RAM designed to be used as a stand-alone 576K-bit Dual-Port RAM or as a combination MASTER/SLAVE Dual-Port RAM for 36-bit or more word systems. This MASTER/SLAVE approach in 36-bit or wider memory system applications results in full-speed, error-free operation without the need for additional discrete logic. 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.
Parameters
| Attributes | Value |
|---|---|
| Core Voltage (V) | 3.3 |
| Bus Width (bits) | 18 |
| Density (Kb) | 1152 |
| Pkg. Code | PNG100 |
| Interface | Async |
| I/O Type | 3.3 V LVTTL |
| Access Time (ns) | 20 |
| Temp. Range (°C) | -40 to 85°C |
| Architecture | Dual-Port |
| Organization | 64K x 18 |
| Function | Busy, Interrupt, Master, Semaphore, Slave |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| TQFP | 14.0 x 14.0 x 1.4 | 100 | 0.5 |
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 70V38L20PFGI | Active | Available | In Stock | TQFP | 1ku | $82.68 | 100# | I | Yes | Tray | 3 | TAIWAN | TAIWAN, USA |
| 70V38L20PFGI8 | Active | N/A | Out of Stock | TQFP | 1ku | $82.68 | 100# | I | Yes | Reel | 3 | TAIWAN | TAIWAN, USA |
| 70V38L15PF | Obsolete | N/A | Out of Stock | TQFP | 100# | C | No | Tray | 3 | |||
| 70V38L15PF8 | Obsolete | N/A | Out of Stock | TQFP | 100# | C | No | Reel | 3 | |||
| 70V38L15PFG | Obsolete | N/A | Out of Stock | TQFP | 100# | C | Yes | Tray | 3 | |||
| 70V38L15PFG8 | Obsolete | N/A | Out of Stock | TQFP | 100# | C | Yes | Reel | 3 | |||
| 70V38L20PF | Obsolete | N/A | Out of Stock | TQFP | 100# | C | No | Tray | 3 | |||
| 70V38L20PF8 | Obsolete | N/A | Out of Stock | TQFP | 100# | C | No | Reel | 3 | |||
| 70V38L20PFI | Obsolete | N/A | Out of Stock | TQFP | 100# | I | No | Tray | 3 | |||
| 70V38L20PFI8 | Obsolete | N/A | Out of Stock | TQFP | 100# | I | No | Reel | 3 |
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- Application NotePDF 197 KB 7WDXRDKU4E7E-5-37103 Jun 01, 2006
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