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 Master/Slave select when cascading more than one device
- 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 byte controls for multiplexed bus and bus-matching compatibility
- Sleep mode inputs on both ports
- Includes JTAG functionality
- 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
- Available in 256-ball BGA, 208-pin PQFP, and 208-ball fpBGA packages
- Industrial temperature range (–40°C to +85°C) is available
70T659 Functional Block Diagram
Description
The 70T659 is a high-speed 128K x 36 asynchronous dual-port static RAM designed to be used as a stand-alone dual-port RAM or as a combination Master/Slave dual-port RAM for 72-bit or more word systems, which would result in full-speed, error-free operation without the need for additional discrete logic. 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.
Parameters
| Attributes | Value |
|---|---|
| Core Voltage (V) | 2.5 |
| Bus Width (bits) | 36 |
| Density (Kb) | 4608 |
| Pkg. Code | BF208 |
| Interface | Async |
| I/O Type | 2.5 V LVTTL, 3.3 V LVTTL |
| Access Time (ns) | 12 |
| Temp. Range (°C) | -40 to 85°C |
| Architecture | Dual-Port |
| Organization | 128K x 36 |
| Function | Busy, Interrupt, JTAG, Master, Semaphore, Slave, Sleep Mode |
Package Options
| Pkg. Type | Pkg. Dimensions (mm) | Lead Count (#) | Pitch (mm) |
|---|---|---|---|
| CABGA | 15.0 x 15.0 x 1.4 | 208 | 0.8 |
| Part Number | Status | Samples | Stock | Package | Budgetary Price (USD) | Carrier Type | Moisture Sensitivity Level (MSL) | Country of Assembly | Country of Wafer Fabrication |
|---|---|---|---|---|---|---|---|---|---|
| 70T659S12BFI | Active | Available | Out of Stock | CABGA | 1ku | $127.01 | Tray | 4 | PHILIPPINES | TAIWAN, USA |
| 70T659S10BC | Obsolete | N/A | Out of Stock | CABGA | Tray | 3 | |||
| 70T659S10BC8 | Obsolete | N/A | Out of Stock | CABGA | Reel | 3 | |||
| 70T659S10BCI | Obsolete | N/A | Out of Stock | CABGA | Tray | 3 | |||
| 70T659S10BCI8 | Obsolete | N/A | Out of Stock | CABGA | Reel | 3 | |||
| 70T659S10BF | Obsolete | N/A | Out of Stock | CABGA | Tray | 4 | |||
| 70T659S10BF8 | Obsolete | N/A | Out of Stock | CABGA | Reel | 4 | |||
| 70T659S10BFI | Obsolete | N/A | Out of Stock | CABGA | Tray | 4 | |||
| 70T659S10BFI8 | Obsolete | N/A | Out of Stock | CABGA | Reel | 4 | |||
| 70T659S10DR | Obsolete | N/A | Out of Stock | PQFP | Tray | 3 | |||
| 70T659S12BC | Obsolete | N/A | Out of Stock | CABGA | Tray | 3 | |||
| 70T659S12BC8 | Obsolete | N/A | Out of Stock | CABGA | Reel | 3 | |||
| 70T659S12BCI | Obsolete | N/A | Out of Stock | CABGA | Tray | 3 | |||
| 70T659S12BCI8 | Obsolete | N/A | Out of Stock | CABGA | Reel | 3 | |||
| 70T659S12BF | Obsolete | N/A | Out of Stock | CABGA | Tray | 4 | |||
| 70T659S12BF8 | Obsolete | N/A | Out of Stock | CABGA | Reel | 4 | |||
| 70T659S12BFI8 | Obsolete | N/A | Out of Stock | CABGA | Reel | 4 | |||
| 70T659S12DR | Obsolete | N/A | Out of Stock | PQFP | Tray | 3 | |||
| 70T659S12DRI | Obsolete | N/A | Out of Stock | PQFP | Tray | 3 | |||
| 70T659S15BC | Obsolete | N/A | Out of Stock | CABGA | Tray | 3 | |||
| 70T659S15BC8 | Obsolete | N/A | Out of Stock | CABGA | Reel | 3 | |||
| 70T659S15BF | Obsolete | N/A | Out of Stock | CABGA | Tray | 4 | |||
| 70T659S15BF8 | Obsolete | N/A | Out of Stock | CABGA | Reel | 4 | |||
| 70T659S15DR | Obsolete | N/A | Out of Stock | PQFP | Tray | 3 | |||
| 70T659S8BC | Obsolete | N/A | Out of Stock | CABGA | Tray | 3 | |||
| 70T659S8BC8 | Obsolete | N/A | Out of Stock | CABGA | Reel | 3 | |||
| 70T659S8BF | Obsolete | N/A | Out of Stock | CABGA | Tray | 4 | |||
| 70T659S8BF8 | Obsolete | N/A | Out of Stock | CABGA | Reel | 4 | |||
| 70T659S8BFG | Obsolete | N/A | Out of Stock | CABGA | Tray | 3 | |||
| 70T659S8BFG8 | Obsolete | N/A | Out of Stock | CABGA | Reel | 3 |
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- Product Change NoticePDF 24 KB 7WDXRDKU4E7E-5-41812 Nov 14, 2012
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- Product Change NoticePDF 16 KB 7WDXRDKU4E7E-5-41680 Aug 12, 2005
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- Product Change NoticePDF 80 KB 7WDXRDKU4E7E-5-41813 Dec 14, 2004
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