UT61256
UT61256 is 32K x 8 BIT HIGH SPEED CMOS SRAM manufactured by UTRON.
FEATURES
Fast access time : 8/10/12/15ns (max.) Low operating power consumption: 80 m A (typical.) Single5V power supply All inputs and outputs are TTL patible 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
A11 A9 A10 A2 A1 A0
VCC VSS
PIN DESCRIPTION
SYMBOL A0
- A14 I/O1
- I/O8
OE VCC VSS
DESCRIPTION
Address Inputs Data Inputs/Outputs Chip Enable Input
Write Enable Input
Output Enable Input Power Supply Ground
GENERAL DESCRIPTION
The UT61256 is a 262,144-bit high speed CMOS static random access memory organized as 32,768 words by 8 bits. It is fabricated using high performance, high reliability CMOS technology.
The UT61256 is designed for high-speed system application. It is particularly suited for use in high speed and high density system...
