器件名称: W2465
功能描述: 8K X 8 CMOS STATIC RAM
文件大小: 228.28KB 共10页
简 介:W2465 8K × 8 CMOS STATIC RAM
GENERAL DESCRIPTION
The W2465 is a slow-speed, low-power CMOS static RAM organized as 8192 × 8 bits that operates on a single 5-volt power supply. This device is manufactured using Winbond's high performance CMOS technology.
FEATURES
Low power consumption: Active: 250 mW (max.) Standby: 100 W (max.)(LL-version) 250 W (max.)(L-version) Access time: 70/100 nS (max.) Single +5V power supply Fully static operation
All inputs and outputs directly TTL compatible Three-state outputs Battery back-up operation capability Data retention voltage: 2V (min.) Available packages: 28-pin 600 mil DIP, 330 mil SOP and 300 mil skinny DIP
PIN CONFIGURATION
BLOCK DIAGRAM
V DD V SS
NC A12 A7 A6 A5 A4 A3 A2 A1 A0 I/O1 I/O2 I/O3 VSS
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
VDD WE CS A8 A9 A11
A0 . . A12
DECODER
CORE ARRAY
CS2 CS1 OE WE
CONTROL
DATA I/O
I/O1 . . I/O8
OE A10 CS I/O8 I/O7 I/O6 I/O5 I/O4
PIN DESCRIPTION
SYMBOL A0A12 I/O1I/O8 CS1, CS2
WE OE VDD VSS NC
DESCRIPTION Address Inputs Data Inputs/Outputs Chip Select Inputs Write Enable Input Output Enable Input Power Supply Ground No Connection
-1-
Publication Release Date: April 1997 Revision A8
W2465
TRUTH TABLE
CS1 H X L L L CS2 X L H H H OE X X H L X WE X X H H L MODE Not Selected Not Selected Output Disable Read Write I/O1I/O8 High Z High Z High Z Data Out Data In VDD CURRENT ISB, ISB1 ISB, ISB1 IDD IDD IDD
DC CHARACTERISTICS Absolute Maximu……
