CAT25256XI datasheet, PDF - EEWORLD Datasheet

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CAT25256XI: DescriptionEEPROM (32kx8) 256K SPI 1.8 to 5.5V; Categorystorage; File Size219KB，20 Pages; ManufacturerON Semiconductor; Websitehttp://www.onsemi.cn

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CAT25256XI Overview

EEPROM (32kx8) 256K SPI 1.8 to 5.5V

CAT25256XI Parametric

Parameter Name	Attribute value
Product Category	EEPROM
Manufacturer	ON Semiconductor
RoHS	Details
Mounting Style	SMD/SMT
Package / Case	SOIC-8
Memory Size	256 kbit
Organization	32 k x 8
Interface Type	Serial, 4-Wire, SDI, SPI
Access Time	75 ns
Data Retention	100 Year
Maximum Clock Frequency	5 MHz
Supply Current - Max	4 mA
Operating Supply Voltage	2.5 V, 3.3 V, 5 V
Minimum Operating Temperature	- 40 C
Maximum Operating Temperature	+ 85 C
Packaging	Tube
Height	1.78 mm (Max)
Length	5.33 mm (Max)
Moisture Sensitive	Yes
Operating Supply Current	4 mA
Factory Pack Quantity	94
Supply Voltage - Max	5.5 V
Supply Voltage - Min	1.8 V
Width	5.38 mm (Max)
Unit Weight	0.019048 oz

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CAT25256

256-Kb SPI Serial CMOS

EEPROM

Description

The CAT25256 is a 256−Kb Serial CMOS EEPROM device

internally organized as 32Kx8 bits. This features a 64−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 CAT25256 device. The device features

software and hardware write protection, including partial as well as

full array protection.

On−Chip ECC (Error Correction Code) makes the device suitable

for high reliability applications.*

Features

http://onsemi.com

SOIC−8

V SUFFIX

CASE 751BD

UDFN−8

HU4 SUFFIX

CASE 517AZ

SOIC−8

X SUFFIX

CASE 751BE

•

20 MHz (5 V) SPI Compatible

1.8 V to 5.5 V Supply Voltage Range

SPI Modes (0,0) & (1,1)

64−byte Page Write Buffer

Additional Identification Page with Permanent Write Protection

(New Product)

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

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

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

Compliant

PDIP−8

L SUFFIX

CASE 646AA

TSSOP−8

Y SUFFIX

CASE 948AL

TDFN−8**

ZD2 SUFFIX

CASE 511AM

PIN CONFIGURATIONS

HOLD

SCK

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

UDFN (HU4), TDFN** (ZD2)

(Top View)

** Not recommended for new designs.

PIN FUNCTION

Pin Name

†

Function

Chip Select

Serial Data Output

Write Protect

Ground

Serial Data Input

Serial Clock

Hold Transmission Input

Power Supply

HOLD

SCK

CAT25256

SCK

HOLD

†The exposed pad for the TDFN/UDFN packages can

be left floating or connected to Ground.

Figure 1. Functional Symbol

ORDERING INFORMATION

See detailed ordering and shipping information in the package

dimensions section on page 20 of this data sheet.

* Available for New Product (Rev. E)

Semiconductor Components Industries, LLC, 2012

September, 2012

−

Rev. 7

Publication Order Number:

CAT25256/D

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