512K x 8 SRAM MODULE
SYS8512FKX - 55/70
Elm Road, West Chirton Industrial Estate, North Shields,
NE29 8SE, ENGLAND. TEL +44 (0191) 2930500. FAX +44 (0191)
2590997
Issue 1.5 : January 1999
Features
•
Access Times of 55/70 ns.
•
32 Pin 0.6" Dual-In-Line Low Profile package
with JEDEC compatible pinout.
•
5 Volt Supply ± 10%.
•
Low Power Dissipation:
Average (min cycle) 605mW (maximum).
Standby (CMOS)
40mW (maximum).
•
Completely Static Operation.
•
Equal Access and Cycle Times.
•
All Inputs and Outputs Directly TTL
compatible
•
On-board Supply Decoupling Capacitors.
Pin Definition
Description
The SYS8512FKX is plastic 4M Static RAM Module
housed in a standard 32 pin Dual-In-Line Low
Profile package, organised as 512K x 8. The
module utilises 128K x 8 SRAMs housed in TSOP
packages, and uses double sided surface mount
techniques, buried decoder and dual board
construction to achieve a very high density module.
The module has Chip Select, Write Enable and
Output Enable control inputs; the Output Enable
pin allows faster access times than address access
during a Read Cycle.
Block Diagram
AO - A 16
D0 - D7
WE
OE
128K x 8
SRAM
CS
128K x 8
SRAM
CS
128K x 8
SRAM
CS
128K x 8
SRAM
CS
DECODER
A17
CS
A18
A18
A16
A14
A12
A7
A6
A5
A4
A3
A2
A1
A0
D0
D1
D2
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
32
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
VCC
A15
A17
WE
A13
A8
A9
A11
OE
A10
CS
D7
D6
D5
D4
D3
Pin Functions
Address Inputs
Data Input/Output
Chip Select
Write Enable
Output Enable
Power (+5V)
Ground
A0 ~ A18
D0 ~ D7
CS
WE
OE
V
CC
GND
Package Details
Plastic 32 Pin 0.6" JEDEC DIL
PACKAGE TOP VIEW
ISSUE 1.5 January 1999
SYS8512FKX - 55/70
Package Information
(Dimensions in Millimetres)
Plastic 32 Pin 0.6" Low Profile Dual-In-Line.
42.50 max.
15.92 max.
6.0 max.
3.50 +/-0.50
2.54 typ.
min.
15.24 typ.
Ordering Information
SYS8512FKXLI - 55
Speed
55 = 55 ns
70 = 70 ns
Blank = Commercial Temperature
I = Industrial Temperature
Blank = Standard Part
L = Low Power Part
P = Super Low Power Part
FKX = Plastic 32 Pin Low Profile DIL
8512 = 512K x 8
SYS = Static RAM
Temperature Range
Power Consumption
Package
Organization
Memory Type
55ns Industrial grade parts are not available at present.
Note :
Although this data is believed to be accurate, the information contained herein is not intended to and does not create
any warranty of merchantibility or fitness for a particular purpose.
Our products are subject to a constant process of development. Data may be changed at any time without notice.
Products are not authorised for use as critical components in life support devices without the express written approval
of a company director.
2
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
