Ultra Low Power 64K x 16 CMOS SRAM
V62C1161024L(L)
Ultra Low Power 64K x 16 CMOS SRAM
Features
• Ultra Low-power consumption - Active: 30mA ICC at 70ns - ...
Description
V62C1161024L(L)
Ultra Low Power 64K x 16 CMOS SRAM
Features
Ultra Low-power consumption - Active: 30mA ICC at 70ns - Stand-by: 5 µA (CMOS input/output) 1 µA (CMOS input/output, L version) 70/85/100/120 ns access time Equal access and cycle time Single +1.8V to 2.2V Power Supply Tri-state output Automatic power-down when deselected Multiple center power and ground pins for improved noise immunity Individual byte controls for both Read and Write cycles Available in 44 pin TSOP (II) Package
Functional Description
The V62C1161024L is a Low Power CMOS Static RAM organized as 65,536 words by 16 bits. Easy memory expansion is provided by an active LOW (CE) and (OE) pin. This device has an automatic power-down mode feature when deselected. Separate Byte Enable controls (BLE and BHE) allow individual bytes to be accessed. BLE controls the lower bits I/O1 - I/O8. BHE controls the upper bits I/O9 - I/O16. Writing to these devices is performed by taking Chip Enable (CE) with Write Enable (WE) and Byte Enable (BLE/BHE) LOW. Reading from the device is performed by taking Chip Enable (CE) with Output Enable (OE) and Byte Enable (BLE/BHE) LOW while Write Enable (WE) is held HIGH.
Logic Block Diagram
Pre-Charge Circuit
A0 A1 A2 A3 A4 A5 A6 A7 A8 A9
TSOP(II)
Row Select
Vcc Vss
Memory Array 1024 X 1024
I/O1 - I/O8 I/O9 - I/O16
Data Cont Data Cont
I/O Circuit Column Select
A10 A11 A12 A13 A14 A15
WE OE
BHE BLE CE
A4 A3 A2 A1 A0 CE I/O1 I/O2 I/O3 I/O4 Vcc Vss I/O5 ...
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