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) permits 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) or 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 (–40 °C to +85 °C) is available
Comparison
Applications
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
Applied Filters: