CAT24C44GL-TE13 CATALYST [Catalyst Semiconductor], CAT24C44GL-TE13 Datasheet

no-image

CAT24C44GL-TE13

Manufacturer Part Number
CAT24C44GL-TE13
Description
256-Bit Serial Nonvolatile CMOS Static RAM
Manufacturer
CATALYST [Catalyst Semiconductor]
Datasheet
© 2005 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
The CAT24C44 Serial NVRAM is a 256-bit nonvolatile
memory organized as 16 words x 16 bits. The high
speed Static RAM array is bit for bit backed up by a
nonvolatile EEPROM array which allows for easy trans-
fer of data from RAM array to EEPROM (STORE) and
from EEPROM to RAM (RECALL). STORE operations
are completed in 10ms max. and RECALL operations
typically within 1.5 s. The CAT24C44 features unlim-
ited RAM write operations either through external RAM
writes or internal recalls from EEPROM. Internal false
DO
CE
SK
DI
1
2
3
4
8
7
6
5
V CC
STORE
RECALL
V SS
DO
CE
SK
DI
1
2
3
4
8
7
6
5
V CC
RECALL
V SS
STORE
1
store protection circuitry prohibits STORE operations
when V
data integrity.
The CAT24C44 is manufactured using Catalyst’s ad-
vanced CMOS floating gate technology. It is designed to
endure 100,000 program/erase cycles (EEPROM) and
has a data retention of 10 years. The device is available
in JEDEC approved 8-pin plastic DIP and SOIC pack-
ages.
SK
DI
DO
CE
RECALL
STORE
V
V
CC
CC
SS
is less than 3.5V (typical) ensuring EEPROM
Serial Clock
Serial Input
Serial Data Output
Chip Enable
Recall
Store
+5V
Ground
E
Doc. No. 1083, Rev. R

Related parts for CAT24C44GL-TE13

CAT24C44GL-TE13 Summary of contents

Page 1

The CAT24C44 Serial NVRAM is a 256-bit nonvolatile memory organized as 16 words x 16 bits. The high speed Static RAM array is bit for bit backed nonvolatile EEPROM array which allows for easy trans- fer of ...

Page 2

ROW DECODE CE INSTRUCTION DI REGISTER SK INSTRUCTION DECODE STORE STORE STORE STORE STORE (3) Hardware Recall 1 Software Recall 1 (3) Hardware Store 0 Software Store Don’t Care VCCSR V Slew Rate CC t Power-Up to ...

Page 3

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 ............... –2.0V to +7.0V ...

Page 4

10%, unless otherwise specified Frequency Positive Pulse Width SKH t SK Negative Pulse Width SKL t Data Setup Time DS t Data Hold Time Data Valid Time PD ...

Page 5

The CAT24C44 is intended for use with standard micro- processors. The CAT24C44 is organized as 16 registers by 16 bits. Seven 8-bit instructions control the device’s operating modes, the RAM reading and writing, and the EEPROM storing and recalling. It ...

Page 6

The CAT24C44 powers up in the program disable state (the “write enable latch” is reset). Any programming after power-up or after a WRDS (RAM write/EEPROM store disable) instruction must first be preceded by the WREN (RAM write/EEPROM store enable) instruction. ...

Page 7

RECALL RECALL RECALL RECALL RECALL Data is transferred from the EEPROM data memory to RAM by either sending the RCL instruction or by pulling the RECALL input pin low. A recall operation must be performed before the EEPROM store, or ...

Page 8

Prefix Device # CAT 24C44 Optional Product Company ID Number Package P: PDIP S: SOIC, JEDEC L: PDIP (Lead-free, Halogen-free) V: SOIC, JEDEC (Lead-free, Halogen-free) GL: PDIP (Lead-free, Halogen-free, NiPdAu lead ...

Page 9

...

Related keywords