
70V639S10BF
Obsolete128K X 18 3.3V DUAL-PORT RAM, INTERLEAVED I/OS

70V639S10BF
Obsolete128K X 18 3.3V DUAL-PORT RAM, INTERLEAVED I/OS
Description
General part information
70V639 Series
The 70V639 is a high-speed 128K x 18 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 36-bit or more word systems. Using the Master/Slave dual-port RAM 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 the chip enables (either CE0 or CE1) permits the on-chip circuitry of each port to enter a very low standby power mode.
Technical Specifications
Parameters and characteristics for this part
| Specification | 70V639S10BF |
|---|---|
| Access Time | 10 ns |
| Memory Depth | 128 K |
| Memory Format | SRAM |
| Memory Interface (Type) | Parallel |
| Memory Size | 2.25 Mbit |
| Memory Type | Volatile |
| Memory Width | 18 bit |
| Mounting Type | Surface Mount |
| Operating Temperature (Max) | 70 °C |
| Operating Temperature (Min) | 0 °C |
| Package / Case | 208-LFBGA |
| Package Length | 15 mm |
| Package Name | 208-CABGA |
| Package Width | 15 mm |
| Technology | SRAM - Dual Port, Asynchronous |
| Voltage - Supply (Maximum) | 3.45 V |
| Voltage - Supply (Minimum) | 3.15 V |
| Write Cycle Time - Page | 10 ns |
| Write Cycle Time - Word | 10 ns |
Pricing
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