23LCV1024T-E datasheet(1/30 Pages) MICROCHIP

Part #	23LCV1024T-E

Description	1 Mbit SPI Serial SRAM with Battery Backup and SDI Interface

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Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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 2012 Microchip Technology Inc.

Preliminary

DS25156A-page 1

23LCV1024

Device Selection Table

Features:

• SPI-Compatible Bus Interface:

- 20 MHz Clock rate

- SPI/SDI mode

• Low-Power CMOS Technology:

- Read Current: 3 mA at 5.5V, 20 MHz

- Standby Current: 4

A at +85°C

• Unlimited Read and Write Cycles

• External Battery Backup Support

• Zero Write Time

• 128K x 8-bit Organization:

- 32-byte page

• Byte, Page and Sequential mode for Reads and

Writes

• High Reliability

• Temperature Range Supported:

• Pb-Free and RoHS Compliant, Halogen Free

• 8-Lead SOIC, TSSOP and PDIP Packages

Pin Function Table

Description:

The Microchip Technology Inc. 23LCV1024 is a 1 Mbit

Serial SRAM device. The memory is accessed via a

simple Serial Peripheral Interface (SPI) compatible

serial bus. The bus signals required are a clock input

(SCK) plus separate data in (SI) and data out (SO)

lines. Access to the device is controlled through a Chip

Select (CS) input. Additionally, SDI (Serial Dual Inter-

face) is supported if your application needs faster data

rates.

This device also supports unlimited reads and writes to

the memory array, and supports data backup via an

external battery/coin cell connected to VBAT (pin 7).

The 23LCV1024 is available in standard packages

including 8-lead SOIC, PDIP and advanced 8-lead

TSSOP.

Package Types (not to scale)

Part

Number

VCC Range

Dual I/O

(SDI)

Battery

Backup

Max. Clock

Frequency

Packages

23LCV1024

2.5-5.5V

Yes

20 MHz

SN, ST, P

- Industrial (I):

-40

Cto +85C

Name

Function

CS

Chip Select Input

SO/SIO1

Serial Output/SDI Pin

Vss

Ground

SI/SIO0

Serial Input/SDI Pin

SCK

Serial Clock

VBAT

External Backup Supply Input

Vcc

Power Supply

CS

SO/SIO1

NC

Vss

Vcc

VBAT

SCK

SI/SIO0

1

2

3

4

8

7

6

5

SOIC/TSSOP/PDIP

1 Mbit SPI Serial SRAM with Battery Backup and SDI Interface

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23LCV1024T-E Datasheet(PDF) 1 Page - Microchip Technology

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