HY62256A Series
32Kx8bit CMOS SRAM
DESCRIPTION
The HY62256A is a high-speed, low power and 32,786 x 8-bits CMOS Static ...
HY62256A Series
32Kx8bit
CMOS SRAM
DESCRIPTION
The HY62256A is a high-speed, low power and 32,786 x 8-bits
CMOS Static Random Access Memory fabricated using Hyundai's high performance
CMOS process technology. The HY62256A has a data retention mode that guarantees data to remain valid at the minimum power supply
voltage of 2.0 volt. Using the
CMOS technology, supply
voltages from 2.0 to 5.5volt has little effect on supply current in the data retention mode. The HY62256A is suitable for use in low
voltage operation and battery back-up application. Product
Voltage Speed No. (V) (ns) HY62256A 5.0 55/70/85 Note 1. Current value is max. Operation Current(mA) 50
FEATURES
Fully static operation and Tri-state output TTL compatible inputs and outputs Low power consumption Battery backup(L/LL-part) - 2.0V(min.) data retention Standard pin configuration - 28 pin 600 mil PDIP - 28 pin 330mil SOP - 28 pin 8x13.4 mm TSOP-I (Standard and Reversed)
Standby Current(uA) L LL 1mA 100 25
PIN CONNECTION
A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 I/O1 I/O2 I/O3 Vss Vcc /WE A13 A8 A9 A11 /OE A10 /CS I/O8 I/O7 I/O6 I/O5 I/O4
1 2 3 4 5 6 7 8 9 10 11 12 13 14
28 27 26 25 24 23 22 21 20 19 18 17 16 15
A14 A12 A7 A6 A5 A4 A3 A2 A1 A0 I/O1 I/O2 I/O3 Vss
PDIP
PIN DESCRIPTION
Pin Name /CS /WE /OE A0 ~ A14 I/O1 ~ I/O8 Vcc Vss
COLUMN DECODER
A14 /CS /OE /WE
WRITE DRIVER
MEMORY ARRAY 512x512
OUTPUT BUFFER
w
CONTROL LOGIC
Pin Function Chip Select Write Enable Output Enable Address Inputs Data In...