CAT25320 datasheet(1/16 Pages) ONSEMI

Teilenummer	CAT25320

Bauteilbeschribung	32-Kb SPI Serial CMOS EEPROM

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July, 2015 − Rev. 11

1

Publication Order Number:

CAT25320/D

CAT25320

32-Kb SPI Serial CMOS

EEPROM

Description

The CAT25320 is a 32−Kb Serial CMOS EEPROM device

internally organized as 4096x8 bits. This features a 32−byte page write

buffer and supports the Serial Peripheral Interface (SPI) protocol. The

device is enabled through a Chip Select (CS) input. In addition, the

required bus signals are clock input (SCK), data input (SI) and data

output (SO) lines. The HOLD input may be used to pause any serial

communication with the CAT25320 device. The device features

software and hardware write protection, including partial as well as

full array protection.

Features

• 10 MHz SPI Compatible

• 1.8 V to 5.5 V Supply Voltage Range

• SPI Modes (0,0) & (1,1)

• 32−byte Page Write Buffer

• Self−timed Write Cycle

• Hardware and Software Protection

• Block Write Protection

− Protect 1/4, 1/2 or Entire EEPROM Array

• Low Power CMOS Technology

• 1,000,000 Program/Erase Cycles

• 100 Year Data Retention

• Industrial and Extended Temperature Range

• PDIP, SOIC, TSSOP 8−lead, TDFN and UDFN 8−pad Packages

• This Device is Pb−Free, Halogen Free/BFR Free, and RoHS

Compliant

SI

SO

CAT25320

SCK

VSS

VCC

CS

WP

HOLD

Figure 1. Functional Symbol

www.onsemi.com

PIN CONFIGURATION

SI

HOLD

VCC

VSS

WP

SO

CS

1

See detailed ordering and shipping information in the package

dimensions section on page 16 of this data sheet.

ORDERING INFORMATION

SCK

PDIP (L), SOIC (V), TSSOP (Y),

TDFN (VP2*), UDFN (HU3)

Chip Select

CS

Serial Data Output

SO

Write Protect

WP

Ground

VSS

Serial Data Input

SI

Serial Clock

SCK

Function

Pin Name

PIN FUNCTION

Hold Transmission Input

HOLD

Power Supply

VCC

SOIC−8

V SUFFIX

CASE 751BD

TDFN−8*

VP2 SUFFIX

CASE 511AK

PDIP−8

L SUFFIX

CASE 646AA

TSSOP−8

Y SUFFIX

CASE 948AL

UDFN−8

HU3 SUFFIX

CASE 517AX

* Not recommended for new designs

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