25LC040 datasheet(1/22 Pages) MICROCHIP

部件名	25LC040

功能描述	4K SPI Bus Serial EEPROM

PDF	22 Pages

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制造商	MICROCHIP [Microchip Technology]

网页	http://www.microchip.com

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DS21204E-page 1

25AA040/25LC040/25C040

Device Selection Table

Features:

• Low-power CMOS technology:

- Write current: 3 mA, typical

- Read current: 500

μA, typical

- Standby current: 500 nA, typical

• 512 x 8-bit organization

• 16 byte page

• Write cycle time: 5 ms max.

• Self-timed Erase and Write cycles

• Block write protection:

- Protect none, 1/4, 1/2 or all of array

• Built-in write protection:

- Power on/off data protection circuitry

- Write enable latch

- Write-protect pin

• Sequential read

• High reliability:

- Endurance: 1M cycles

- Data retention: > 200 years

- ESD protection: > 4000V

• 8-pin PDIP, SOIC and TSSOP packages

• Temperature ranges supported:

Description:

The Microchip Technology Inc. 25AA040/25LC040/

25C040 (25XX040*) is a 4 Kbit serial Electrically

Erasable PROM. 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.

Communication to the device can be paused via the

hold pin (HOLD). While the device is paused, transi-

tions on its inputs will be ignored, with the exception of

Chip Select, allowing the host to service higher priority

interrupts. Also, write operations to the device can be

disabled via the write-protect pin (WP).

Package Types

Block Diagram

Part

Number

VCC

Range

Max. Clock

Frequency

Temp.

Ranges

25AA040

1.8-5.5V

1 MHz

I

25LC040

2.5-5.5V

2 MHz

I

25C040

4.5-5.5V

3 MHz

I,E

- Industrial (I):

-40

°Cto +85°C

- Automotive (E) (25C040):

-40°C to +125°C

CS

SO

WP

VSS

VCC

HOLD

SCK

SI

1

2

3

4

8

7

6

5

CS

SO

WP

VSS

VCC

HOLD

SCK

SI

1

2

3

4

8

7

6

5

HOLD

VCC

CS

SO

1

2

3

4

8

7

6

5

SCK

SI

VSS

WP

PDIP

SOIC

TSSOP

SI

SO

SCK

CS

HOLD

WP

STATUS

Register

I/O Control

Memory

Control

Logic

HV Generator

EEPROM

Array

Page

Y Decoder

Sense Amp.

R/W Control

Logic

VCC

VSS

XDEC

Latches

4K SPI Bus Serial EEPROM

*25XX040 is used in this document as a generic part number

for the 25AA040/25LC040/25C040 devices.

Not recommended for new designs –

Please use 25AA040A or 25LC040A.

类似零件编号 - 25LC040

制造商	部件名	数据表	功能描述
Microchip Technology	25LC040	240Kb / 12P	4K SPI ??Bus Serial EEPROM 2006
	25LC040-E/P	419Kb / 22P	4K SPI ??Bus Serial EEPROM 2006
	25LC040-E/SN	419Kb / 22P	4K SPI ??Bus Serial EEPROM 2006
	25LC040-E/ST	419Kb / 22P	4K SPI ??Bus Serial EEPROM 2006
	25LC040-I/P	419Kb / 22P	4K SPI ??Bus Serial EEPROM 2006

More results

类似说明 - 25LC040

制造商	部件名	数据表	功能描述
STMicroelectronics	ST95P04	151Kb / 16P	SERIAL ACCESS SPI BUS 4K 512 x 8 EEPROM Jun-1996
Fairchild Semiconductor	NM25C040	101Kb / 10P	4K-Bit Serial CMOS EEPROM (Serial Peripheral Interface (SPI) Synchronous Bus)
Microchip Technology	25AA040	240Kb / 12P	4K SPI ??Bus Serial EEPROM 2006
	25AA040	419Kb / 22P	4K SPI ??Bus Serial EEPROM 2006
	25AA040A	571Kb / 28P	4K SPI Bus Serial EEPROM 2007
	25AA040A	475Kb / 30P	4K SPI Bus Serial EEPROM 2009
Sanyo Semicon Device	LE25LB643	255Kb / 14P	Serial SPI EEPROM (SPI Bus) (64Kbit)
Sanyo Semicon Device	LE25LB1282TT	256Kb / 14P	Serial SPI EEPROM (SPI Bus)(128Kbit)
Microchip Technology	25LC040P	421Kb / 22P	4K SPI Bus Serial EEPROM 2006
Microchip Technology	25AA040A	1Mb / 38P	4K SPI Bus Serial EEPROM 11/27/12