23LC512-ESLASHST datasheet(1/32 Pages) MICROCHIP

Part #	23LC512-E/ST

Description	512Kbit SPI Serial SRAM with SDI and SQI Interface

PDF	32 Pages

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Manufacturer	MICROCHIP [Microchip Technology]

Direct Link	http://www.microchip.com

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 2012-2013 Microchip Technology Inc.

DS20005155B-page 1

23A512/23LC512

Device Selection Table

Features:

• SPI-Compatible Bus Interface:

- 20 MHz Clock rate

- SPI/SDI/SQI 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

• Zero Write Time

• 64K x 8-bit Organization:

- 32-byte page

• Byte, Page and Sequential mode for Reads and

Writes

• High Reliability

• Temperature Ranges Supported:

• RoHS Compliant

• 8-Lead SOIC, TSSOP and PDIP Packages

Pin Function Table

Description:

The Microchip Technology Inc. 23A512/23LC512 are

512Kbit 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) 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 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.

The 23A512/23LC512 is available in standard

packages including 8-lead SOIC, PDIP and advanced

8-lead TSSOP.

Package Types (not to scale)

Part

Number

VCC Range

Temp.

Ranges

Dual I/O

(SDI)

Quad I/O

(SQI)

Max. Clock

Frequency

Packages

23A512

1.7-2.2V

I, E

Yes

20 MHz(1)

SN, ST, P

23LC512

2.5-5.5V

I, E

Yes

20 MHz(1)

SN, ST, P

Note 1:

16 MHz for E-temp.

- Industrial (I):

-40

Cto +85C

- Automotive (E):

-40

C to +125C

Name

Function

CS

Chip Select Input

SO/SIO1

Serial Output/SDI/SQI Pin

SIO2

SQI Pin

VSS

Ground

SI/SIO0

Serial Input/SDI/SQI Pin

SCK

Serial Clock

HOLD/SIO3

Hold/SQI Pin

VCC

Power Supply

CS

SO/SIO1

SIO2

VSS

VCC

HOLD/SIO3

SCK

SI/SIO0

1

2

3

4

8

7

6

5

SOIC/TSSOP/PDIP

512Kbit SPI Serial SRAM with SDI and SQI Interface

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