23LC1024 datasheet(1/33 Pages) MICROCHIP

Part #	23LC1024

Description	1-Mbit SPI Serial SRAM with SDI and SQI Interface

PDF	33 Pages

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Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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 2012-2022 Microchip Technology Inc. and its subsidiaries

DS20005142D-page 1

23A1024/23LC1024

Device Selection Table

Features

• SPI Bus Interface:

- SPI compatible

- SDI (dual) and SQI (quad) compatible

- 20 MHz Clock rate for all modes

• 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

• Zero Write Time

• 128-Kbit x 8-bit Organization:

- 32-byte page

• Byte, Page and Sequential Mode for Reads and

Writes

• High Reliability

• Temperature Ranges Supported:

• Automotive AEC-Q100 Qualified

• RoHS Compliant

Packages

• 8-Lead PDIP

• 8-Lead SOIC

• 8-Lead TSSOP

Package Types (not to scale)

Description

The Microchip Technology Inc. 23A1024/23LC1024

are 1-Mbit Serial SRAM devices. The memory is

accessed via a simple Serial Peripheral Interface (SPI)

compatible serial bus. The bus signals required are a

clock input (SCK), a data in line (SI) and a data out line

(SO). Access to the device is controlled through a Chip

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

Interface) and SQI (Serial Quad Interface) is supported

if your application needs faster data rates.

This device also supports unlimited reads and writes to

the memory array.

Pin Function Table

Part

Number

VCC Range

Temp.

Ranges

Dual I/O

(SDI)

Quad I/O

(SQI)

Max. Clock

Frequency

Packages

23A1024

1.7V-2.2V

I, E

Yes

20 MHz(1)

SN, ST, P

23LC1024

2.5V-5.5V

I, E

Yes

20 MHz(1)

SN, ST, P

Note 1: 16 MHz for E-temp.

- Industrial (I):

-40

Cto +85C

- Extended (E):

-40

Cto +125C

CS

SO/SIO1

SIO2

VSS

VCC

HOLD/SIO3

SCK

SI/SIO0

1

2

3

4

8

7

6

5

SOIC/TSSOP/PDIP

Name

Function

CS

Chip Select Input Pin

SO/SIO1

Serial Output/SDI/SQI Pin

SIO2

SQI Pin

VSS

Ground Pin

SI/SIO0

Serial Input/SDI/SQI Pin

SCK

Serial Clock Pin

HOLD/SIO3

Hold/SQI Pin

VCC

Power Supply Pin

1-Mbit SPI Serial SRAM with SDI and SQI Interface

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