CAT25C128Y14-GT3 datasheet, PDF

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CAT25C128Y14-GT3: Description64K 8K x 8 Battery-Voltage CMOS E2PROM; Categoryaccessories; File Size442KB，12 Pages; ManufacturerCatalyst; Websitehttp://www.catalyst-semiconductor.com/

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CAT25C128Y14-GT3 Overview

64K 8K x 8 Battery-Voltage CMOS E2PROM

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CAT25C128/256

128K/256K-Bit SPI Serial CMOS EEPROM

FEATURES

5 MHz SPI Compatible

1.8 to 5.5 Volt Operation

Hardware and Software Protection

Low Power CMOS Technology

SPI Modes (0,0 &1,1)

Industrial and Automotive

Self-Timed Write Cycle

64-Byte Page Write Buffer

Block Write Protection

– Protect 1/4, 1/2 or all of EEPROM Array

100,000 Program/Erase Cycles

100 Year Data Retention

RoHS-compliant packages

Temperature Ranges

DESCRIPTION

The CAT25C128/256 is a 128K/256K-Bit SPI Serial

CMOS EEPROM internally organized as 16Kx8/32Kx8

bits. Catalyst’s advanced CMOS Technology

substantially reduces device power requirements. The

CAT25C128/256 features a 64-byte page write buffer.

The device operates via the SPI bus serial interface

and is enabled through a Chip Select (CS). In addition

to the Chip Select, the clock input (SCK), data in (SI)

and data out (SO) are required to access the device.

The

HOLD

pin may be used to suspend any serial

communication without resetting the serial sequence.

The CAT25C128/256 is designed with software and

hardware write protection features including Block Lock

protection. The device is available in 8-pin DIP, 8-pin

SOIC, 14-pin TSSOP and 20-pin TSSOP packages.

PIN CONFIGURATION

SOIC Package

(V**, X)

VSS

VCC

HOLD

SCK

BLOCK DIAGRAM

TSSOP Package (Y14)**

VSS

V CC

HOLD

SCK

SENSE AMPS

SHIFT REGISTERS

WORD ADDRESS

BUFFERS

COLUMN

DECODERS

DIP Package (L)

VCC

HOLD

SCK

TSSOP Package (Y20)**

VSS

**CAT25C128 only.

V CC

HOLD

SCK

HOLD

SCK

I/O

CONTROL

SPI

CONTROL

LOGIC

BLOCK

PROTECT

LOGIC

CONTROL LOGIC

XDEC

EE PROM

ARRAY

PIN FUNCTIONS

Pin Name

SCK

HOLD

Function

Serial data Output

Serial Clock

Write Protect

Power Supply

Ground

Chip Select

Serial Data Input

Suspends Serial Input

No Connect

DATA IN

STORAGE

HIGH VOLTAGE/

TIMING CONTROL

STATUS

For Ordering Information details, see page 11.

Characteristics subject to change without notice

Document No. 1018, Rev. I

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