22C10 CatalystSemiconductor, 22C10 Datasheet

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22C10

Manufacturer Part Number
22C10
Description
256-BitNonvolatileCMOSStaticRAM
Manufacturer
CatalystSemiconductor
Datasheet
STORE
CAT22C10
256-Bit Nonvolatile CMOS Static RAM
FEATURES
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
from RAM array to E
E
completed in 10ms max. and RECALL operations typi-
cally within 1.5 s. The CAT22C10 features unlimited
RAM write operations either through external RAM
© 1998 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
PIN CONFIGURATION
V ss
NC
CS
2
2
A 4
A 3
A 2
A 1
A 0
PROM array which allows for easy transfer of data
PROM to RAM (RECALL). STORE operations are
Single 5V Supply
Fast RAM Access Times:
–200ns
–300ns
Infinite E
CMOS and TTL Compatible I/O
Power Up/Down Protection
100,000 Program/Erase Cycles (E
DIP Package (P)
2
1
3
6
9
4
5
7
8
2
PROM to RAM Recall
1 6
1 5
1 4
1 8
1 7
13
12
10
11
22C10 F01
V cc
NC
A 5
I/O 3
I/O 2
I/O 1
I/O 0
WE
RECALL
2
PROM (STORE) and from
STORE
V ss
CS
A 4
A 3
A 2
A 1
A 0
SOIC Package (J)
1
2
3
5
6
4
7
8
2
PROM)
1 6
1 5
1 4
13
12
10
11
9
22C10 F02
V cc
I/O 4
I/O 3
I/O 2
I/O 1
A 5
WE
RECALL
1
PIN FUNCTIONS
writes or internal recalls from E
store protection circuitry prohibits STORE operations
when V
The CAT22C10 is manufactured using Catalyst’s ad-
vanced CMOS floating gate technology. It is designed
to endure 100,000 program/erase cycles (E
and has a data retention of 10 years. The device is
available in JEDEC approved 18-pin plastic DIP and 16-
pin SOIC packages.
Low CMOS Power Consumption:
–Active: 40mA Max.
–Standby: 30 A Max.
JEDEC Standard Pinouts:
–18-pin DIP
–16-pin SOIC
10 Year Data Retention
Commercial, Industrial and Automotive
Temperature Ranges
Pin Name
A
I/O
WE
CS
RECALL
STORE
V
V
NC
0
CC
SS
CC
–A
0
–I/O
5
is less than 3.0V.
3
Address
Data In/Out
Write Enable
Chip Select
Recall
Store
+5V
Ground
No Connect
2
Function
PROM. Internal false
Doc. No. 25018-0A 2/98 N-1
2
PROM)

Related parts for 22C10

22C10 Summary of contents

Page 1

... PROM to RAM Recall CMOS and TTL Compatible I/O Power Up/Down Protection 100,000 Program/Erase Cycles (E 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 nonvolatile 2 E PROM array which allows for easy transfer of data ...

Page 2

BLOCK DIAGRAM STORE RECALL (1)(2)(3) MODE SELECTION Mode Standby H RAM Read L RAM Write PROM RAM PROM RAM (RAM E PROM (RAM E PROM) ...

Page 3

ABSOLUTE MAXIMUM RATINGS* Temperature Under Bias ................. – +125 C Storage Temperature ....................... – +150 C Voltage on Any Pin with (2) Respect to Ground .............. -2.0 to +VCC +2.0V V with Respect to Ground ................ ...

Page 4

... Min. Max. Min. Max. 200 300 150 150 50 50 150 150 25 25 100 100 0 0 100 100 0 0 22C10-20 22C10-30 Min. Max. Min. Max. 200 300 200 300 200 300 100 100 4 Unit Conditions 100pF ...

Page 5

A.C. CHARACTERISTICS, Store Cycle V = +5V 10%, unless otherwise specified. CC Symbol Parameter t Store Time STC t Store Pulse Width STP (1) t Store Disable Time STZ (1) t Store Enable Time OST A.C. CHARACTERISTICS, Recall Cycle V ...

Page 6

... Static RAM array contents into the E Standby Mode The chip select (CS) input controls all of the functions of the CAT22C10. When a high level is supplied to the CS pin, the device goes into the standby mode where the outputs are put into a high impendance state and the power consumption is drastically reduced ...

Page 7

Write With the chip enabled and the nonvolatile functions inhibited, the Write Enable (WE) pin will select the write mode when driven to a low level. In this mode, the address must be supplied for the byte being written. After ...

Page 8

... PROM array has a minimum data retention time of 10 years. DATA PROTECTION DURING POWER-UP AND POWER-DOWN The CAT22C10 has on-chip circuitry which will prevent a store operation from occurring when V 3.0V typ. This function eliminates the potential hazard of spurious signals initiating a store operation when the system power is below 3 ...

Page 9

... Optional Product Company ID Number * -40˚ to +125˚C is available upon request Notes: (1) The device used in the above example is a 22C10JI-20TE13 (SOIC, Industrial Temperature, 200ns Access Time, Tape & Reel) Suffix J I Temperature Range Blank = Commercial (0˚ - 70˚ Industrial (-40˚ - 85˚ Automotive (-40˚ - 105˚C)* ...

Page 10

Doc. No. 25018-0A 2/98 N-1 10 ...

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