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參數(shù)資料
| 型號(hào)： | MCM6229BBXJ35R2 |
| 廠商： | MOTOROLA INC |
| 元件分類： | DRAM |
| 英文描述： | 256K x 4 Bit Static Random Access Memory |
| 中文描述： | 256K X 4 STANDARD SRAM, 35 ns, PDSO28 |
| 封裝： | 0.400 INCH, SOJ-28 |
| 文件頁(yè)數(shù)： | 1/8頁(yè) |
| 文件大?。?/td> | 125K |
| 代理商： | MCM6229BBXJ35R2 |
MCM6229BB
1
Motorola, Inc. 1995
Product Preview
256K x 4 Bit Static Random
Access Memory
The MCM6229BB is a 1,048,576 bit static random access memory organized
as 262,144 words of 4 bits. Static design eliminates the need for external clocks
or timing strobes while CMOS circuitry reduces power consumption and provides
for greater reliability.
The MCM6229BB is equipped with both chip enable (E) and output enable (G)
pins, allowing for greater system flexibility and eliminating bus contention problems.
The MCM6229BB is available in 300 mil and 400 mil, 28 lead surface–mount
SOJ packages.
Single 5 V
±
10% Power Supply
Fast Access Times: 15/17/20/25/35 ns
Equal Address and Chip Enable Access Times
All Inputs and Outputs are TTL Compatible and LVTTL Compatible
Three State Outputs
Low Power Operation: 155/150/135/130/110 mA Maximum, Active AC
BLOCK DIAGRAM
MEMORY MATRIX
512 ROWS x
2048 COLUMNS
ROW
DECODER
INPUT
DATA
CONTROL
DQ
DQ
COLUMN I/O
COLUMN DECODER
A
A
A
A
A
A
A
A
E
W
G
A
A
A
A
A
A
A
A
A
A
This document contains information on a new product under development. Motorola reserves the right to change or discontinue this product without notice.
Order this document
by MCM6229BB/D
SEMICONDUCTOR TECHNICAL DATA
PIN ASSIGNMENTS
MCM6229BB
PIN NAMES
XJ PACKAGE
400 MIL SOJ
CASE 810–03
19
18
17
16
15
28
27
26
25
24
23
22
21
20
A
A
A
A
A
A
A
A
A
A
A
E
G
VSS
VCC
A
A
A
A
A
A
NC*
DQ
DQ
DQ
DQ
A
10
11
12
13
14
1
2
3
4
5
6
7
8
9
W
A
W
G
E
DQ
VCC
VSS
NC*
Address Inputs
Write Enable
Output Enable
Chip Enable
Data Inputs/Outputs
+ 5 V Power Supply
. . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . .
. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . .
Ground
No Connection
*If not used for no connect, then do not ex-
ceed voltages of – 0.5 to VCC + 0.5 V.
This pin is used for manufacturing diag-
nostics.
EJ PACKAGE
300 MIL SOJ
CASE 810B–03
11/7/96
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| MCM6246 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:512K x 8 Bit Static Random Access Memory |
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| MCM6246WJ20 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:512K x 8 Bit Static Random Access Memory |
| MCM6246WJ20R2 | 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:512K x 8 Bit Static Random Access Memory |
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