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SCM6323AYJ15AR Datasheet

  • SCM6323AYJ15AR

  • 64K x 16 Bit 3.3 V Asynchronous Fast Static RAM

  • 12頁(yè)

  • MOTOROLA   MOTOROLA

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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order this document
by MCM6323A/D
Product Preview
MCM6323A
64K x 16 Bit 3.3 V Asynchronous
Fast Static RAM
The MCM6323A is a 1,048,576 bit static random access memory organized
as 65,536 words of 16 bits. Static design eliminates the need for external clocks
or timing strobes; CMOS circuitry reduces power consumption and provides for
greater reliability.
The MCM6323A is equipped with chip enable (E), write enable (W), and output
enable (G) pins, allowing for greater system flexibility and eliminating bus contention
problems. Separate byte enable controls (LB and UB) allow individual bytes to be
written and read. LB controls the 8 DQa bits, while UB controls the 8 DQb bits.
The MCM6323A is available in a 400 mil small鈥搊utline J鈥搇eaded (SOJ) pack-
age and a 44鈥搇ead TSOP Type II package in copper leadframe for optimum
printed circuit board (PCB) reliability.
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Single 3.3 V
鹵
0.3 V Power Supply
Fast Access Time: 10, 12, 15 ns
Equal Address and Chip Enable Access Time
All Inputs and Outputs are TTL Compatible
Data Byte Control
Fully Static Operation
Power Operation: 140/135/130 mA Maximum, Active AC
Industrial Temperature Option: 鈥?40 to + 85擄C
Part Number: SCM6323AYJ10A
BLOCK DIAGRAM
G
OUTPUT
ENABLE
BUFFER
7
ADDRESS
BUFFERS
9
ROW
COLUMN
DECODER DECODER
8
HIGH BYTE OUTPUT ENABLE
LOW BYTE OUTPUT ENABLE
8
HIGH
BYTE
OUTPUT
BUFFER
HIGH
BYTE
WRITE
DRIVER
8 DQb
8
YJ PACKAGE
400 MIL SOJ
CASE 919鈥?1
TS PACKAGE
44鈥揕EAD
TSOP TYPE II
CASE 924A鈥?1
PIN ASSIGNMENT
A
A
A
A
A
E
DQa
DQa
DQa
DQa
VDD
VSS
DQa
DQa
DQa
DQa
W
A
A
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
A
A
A
G
UB
LB
DQb
DQb
DQb
DQb
VSS
VDD
DQb
DQb
DQb
DQb
NC
A
A
A
A
NC
A
16
E
CHIP
ENABLE
BUFFER
64K x 16
BIT
MEMORY
ARRAY
16
SENSE
AMPS
8
8
A
A
NC
W
WRITE
ENABLE
BUFFER
LOW
BYTE
OUTPUT
BUFFER
8
LOW
BYTE
WRITE
DRIVER
8 DQa
8
PIN NAMES
A . . . . . . . . . . . . . . . . . . . . . . . . Address Input
E . . . . . . . . . . . . . . . . . . . . . . . . . Chip Enable
W . . . . . . . . . . . . . . . . . . . . . . . . Write Enable
G . . . . . . . . . . . . . . . . . . . . . . Output Enable
UB . . . . . . . . . . . . . . . . . . . . . . . . Upper Byte
LB . . . . . . . . . . . . . . . . . . . . . . . . . Lower Byte
DQa . . . . . . . . . . . . Lower Data Input/Output
DQb . . . . . . . . . . . . Upper Data Input/Output
VDD . . . . . . . . . . . . . . + 3.3 V Power Supply
VSS . . . . . . . . . . . . . . . . . . . . . . . . . . Ground
NC . . . . . . . . . . . . . . . . . . . . . No Connection
8
LB
UB
BYTE
ENABLE
BUFFER
HIGH BYTE WRITE ENABLE
LOW BYTE WRITE ENABLE
This document contains information on a new product under development. Motorola reserves the right
to change or discontinue this product without notice.
REV 1
10/17/97
漏
Motorola, Inc. 1997
MOTOROLA FAST SRAM
MCM6323A
1

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