512K x 36 Async, 3.3V/2.5V Dual-Port RAM, Interleaved I/O's
Jump to Page Section:
Back to top
Explore ECAD Models
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
| Title | Type | Date | |
|---|---|---|---|
PDF420 KB
|
Datasheet
|
||
PDF129 KB
|
Application Note
|
||
PDF197 KB
|
Application Note
|
||
PDF182 KB
|
Application Note
|
||
PDF183 KB
|
Application Note
|
||
PDF97 KB
|
Application Note
|
||
PDF284 KB
|
Application Note
|
||
PDF123 KB
|
Guide
|
||
PDF24 KB
|
Product Change Notice
|
||
PDF135 KB
|
Product Change Notice
|
||
PDF194 KB
|
Product Change Notice
|
||
PDF729 KB
|
Product Change Notice
|
||
PDF80 KB
|
Product Change Notice
|
||
PDF38 KB
|
Product Change Notice
|
||
PDF26 KB
|
Product Change Notice
|
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 |
|---|---|---|---|---|---|---|
| CABGA | 256 | C | No | Tray | ||
| CABGA | 256 | C | No | Reel | ||
| CABGA | 256 | C | Yes | Tray | Get Samples, | |
| CABGA | 256 | C | No | Tray | ||
| CABGA | 256 | C | No | Reel | ||
| CABGA | 256 | I | Yes | Tray | Get Samples, | |
| CABGA | 256 | I | No | Tray | ||
| CABGA | 256 | I | No | Reel | ||
| CABGA | 256 | C | No | Tray | ||
| CABGA | 256 | C | No | Reel |
Tips for Using This Parametric Table:
- Hide Filters button in header: Collapse or expands filters
- Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
- Reset button in header: Reset all filters to the page default
- Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
- Export button in header: Export the filtered results of the table to an Excel document
- Filter parts search bar in header: Type to filter table results by part number
- Hide column button in column headers: Select to hide columns in table
- AND / OR toggle switches in header: Toggles the logic of this particular filter to be “AND” or “OR” logic for filtering results
- Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
- Document icon next to product name in row: View the featured document for this product
- Chip icon next to the right of the document icon in row: View the block diagram for this product
- Cart icon to the right of the chip icon: Indicates that samples are available for this product