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參數(shù)資料
| 型號(hào)： | 22C10 |
| 英文描述： | 256-Bit Nonvolatile CMOS Static RAM |
| 中文描述： | 256位非易失性的CMOS靜態(tài)RAM |
| 文件頁(yè)數(shù)： | 1/10頁(yè) |
| 文件大?。?/td> | 70K |
| 代理商： | 22C10 |
1
CAT22C10
256-Bit Nonvolatile CMOS Static RAM
FEATURES
I
Single 5V Supply
I
Fast RAM Access Times:
–200ns
–300ns
I
Infinite E
2
PROM to RAM Recall
I
CMOS and TTL Compatible I/O
I
Power Up/Down Protection
I
100,000 Program/Erase Cycles (E
2
PROM)
I
Low CMOS Power Consumption:
–Active: 40mA Max.
–Standby: 30
μ
A Max.
I
JEDEC Standard Pinouts:
–18-pin DIP
–16-pin SOIC
I
10 Year Data Retention
I
Commercial, Industrial and Automotive
Temperature Ranges
DESCRIPTION
The CAT22C10 NVRAM is a 256-bit nonvolatile memory
organized as 64 words x 4 bits. The high speed Static
RAM array is bit for bit backed up by a nonvolatile
E
2
PROM array which allows for easy transfer of data
from RAM array to E
2
PROM (STORE) and from
E
2
PROM to RAM (RECALL). STORE operations are
completed in 10ms max. and RECALL operations typi-
cally within 1.5
μ
s. The CAT22C10 features unlimited
RAM write operations either through external RAM
PIN CONFIGURATION
PIN FUNCTIONS
Pin Name
Function
A
0
–A
5
Address
I/O
0
–I/O
3
Data In/Out
WE
Write Enable
CS
Chip Select
RECALL
Recall
STORE
Store
V
CC
+5V
V
SS
Ground
NC
No Connect
writes or internal recalls from E
2
PROM. Internal false
store protection circuitry prohibits STORE operations
when V
CC
is less than 3.0V.
The CAT22C10 is manufactured using Catalyst’s ad-
vanced CMOS floating gate technology. It is designed
to endure 100,000 program/erase cycles (E
2
PROM)
and has a data retention of 10 years. The device is
available in JEDEC approved 18-pin plastic DIP and 16-
pin SOIC packages.
SOIC Package (J)
DIP Package (P)
1998 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
NC
A4
A3
A2
A1
A0
Vss
CS
STORE
NC
A5
I/O3
I/O2
I/O1
I/O0
WE
RECALL
Vcc
1
2
3
4
5
6
7
8
9
14
13
12
11
10
15
16
17
18
1
2
3
4
5
6
7
8
14
13
12
11
10
9
15
16
A1
A0
CS
A2
A3
A4
A5
I/O4
I/O3
I/O2
I/O1
WE
RECALL
Vcc
Vss
STORE
22C10 F01
22C10 F02
Doc. No. 25018-0A 2/98 N-1
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