512K x 36 Async, 3.3V/2.5V Dual-Port RAM, Interleaved I/O's
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Overview
Description
The 70T653M is a high-speed 256K x 36 Asynchronous Dual-Port Static RAM designed to be used as a stand-alone 18874K-bit Dual-Port RAM. An automatic power down feature controlled by the chip enables (either CE0 or CE1) permit the on-chip circuitry of each port to enter a very low standby power mode.
Features
- Dual-Port allows simultaneous access of the same memory location
- RapidWrite Mode simplifies high-speed consecutive write cycles
- Dual chip enables allow for depth expansion without external logic
- Easily expands data bus width to 72 bits or more using the Busy Input when cascading more than one device
- Busy input for port contention management
- Interrupt Flags
- Full on-chip hardware support of semaphore signaling between ports
- Fully asynchronous operation from either port
- Separate byte controls for multiplexed bus and bus matching compatibility
- Sleep Mode Inputs on both ports
- Single 2.5V (±100mV) power supply for core
- LVTTL-compatible, selectable 3.3V (±150mV)/2.5V (±100mV) power supply for I/Os and control signals on each port
- Includes JTAG functionality
- Available in a 256-ball BGA
- Industrial temperature range (–40C to +85C) is available
Documentation
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PDF420 KB
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Datasheet
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PDF129 KB
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Application Note
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Application Note
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Application Note
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Application Note
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Application Note
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Application Note
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Guide
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PDF24 KB
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Product Change Notice
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PDF135 KB
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Product Change Notice
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Product Change Notice
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Product Change Notice
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Product Change Notice
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Product Change Notice
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Product Change Notice
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Design & Development
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 |
|---|---|---|---|---|---|---|
| 256 | C | No | Tray | |||
| 256 | C | No | Reel | |||
| 256 | C | Yes | Tray | Get Samples, | ||
| 256 | C | No | Tray | |||
| 256 | C | No | Reel | |||
| 256 | I | Yes | Tray | Get Samples, | ||
| 256 | I | No | Tray | |||
| 256 | I | No | Reel | |||
| 256 | C | No | Tray | |||
| 256 | C | No | Reel |
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