參數(shù)資料
型號(hào): MCM6728BWJ10
廠商: MOTOROLA INC
元件分類: SRAM
英文描述: 256K x 4 Bit Fast Static Random Access Memory
中文描述: 256K X 4 STANDARD SRAM, 10 ns, PDSO28
封裝: 0.400 INCH, PLASTIC, SOJ-28
文件頁(yè)數(shù): 1/8頁(yè)
文件大?。?/td> 147K
代理商: MCM6728BWJ10
MCM6728B
1
Motorola, Inc. 1995
256K x 4 Bit Fast Static Random
Access Memory
The MCM6728B is a 1,048,576 bit static random access memory organized
as 262,144 words of 4 bits. This device is fabricated using high performance sili-
con–gate BiCMOS technology. Static design eliminates the need for external
clocks or timing strobes.
This device meets JEDEC standards for functionality and revolutionary pinout,
and is available in a 400 mil plastic small–outline J–leaded package.
Single 5 V
±
10% Power Supply
Fully Static — No Clock or Timing Strobes Necessary
All Inputs and Outputs Are TTL Compatible
Three State Outputs
Fast Access Times: 8, 10, 12 ns
Center Power and I/O Pins for Reduced Noise
BLOCK DIAGRAM
ROW
DECODER
MEMORY
MATRIX
512 ROWS x 512 x 4
COLUMNS
INPUT
DATA
CONTROL
COLUMN I/O
COLUMN DECODER
A
A
A
A
A
A
A
A
DQ0
A
A
A
A
A
E
W
VCC
VSS
A
A
A
A
A
DQ3
Order this document
by MCM6728B/D
SEMICONDUCTOR TECHNICAL DATA
PIN ASSIGNMENT
MCM6728B
WJ PACKAGE
400 MIL SOJ
CASE 810–03
28
27
26
25
24
23
22
21
20
19
18
17
A
A
A
A
E
A
W
A
A
A
VCC
VSS
2
3
1
5
6
4
7
9
10
8
12
13
11
14
A
A
A
A
DQ2
A
A
DQ3
A
A
A
A
16
15
VCC
VSS
DQ0
DQ1
A0 – A17
E
. . . . . . . . . . . . . . . . . . . . . .
W
. . . . . . . . . . . . . . . . . . . .
DQ0 – DQ3
. . . . . . . .
VCC
. . . . . . . . . . . .
VSS
. . . . . . . . . . . . . . . . . . . . . . .
NC
. . . . . . . . . . . . . . . . .
Address Input
Chip Enable
Write Enable
Data Input/Output
+ 5 V Power Supply
. . . . . . . . . . . . .
Ground
No Connection
PIN NAMES
REV 2
5/95
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