Rev.
1.
1
UTRON
UT61256
32K X 8 BIT HIGH SPEED
CMOS SRAM
FEATURES
Fast access time : 8/10/12/15ns (max.
) Low operating power consumption: 80 mA (typical.
) Single5V power supply All inputs and outputs are TTL compatible Fully static operation Three state outputs Package : 28-pin 300 mil skinny PDIP
28-pin 300 mil SOJ 28-pin 330 mil SOP 28-pin 8mm×13.
4 mm STSOP
FUNCTIONAL BLOCK DIAGRAM
A4
A3
A14 A13
.
.
A12 ROW DECODER
A7
A6 .
A5
A8
I/O1
.
.
.
.
.
.
I/O
CONTROL
I/O8
.
.
.
MEMORYARRAY 512 ROWS × 512 COLUMNS
.
.
.
COLUMNI/O COLUMNDECODER
CE LOGIC WE CONTROL
OE
A11 A9 A10 A2 A1 A0
VCC VSS
PIN DESCRIPTION
SYMBOL A0 - A14 I/O1 - I/O8
CE
WE
OE VCC VSS
DESCRIPTION Address Inputs Data...