25LC040-I/SN Microchip Technology Inc., 25LC040-I/SN Datasheet

25LC040-I/SN

Manufacturer Part Number

25LC040-I/SN

Description

4K, 512 X 8 , 2.5V SER EE IND

Manufacturer

Microchip Technology Inc.

Datasheet

1.25C040SN.pdf (5 pages)

Specifications of 25LC040-I/SN

Capacitance, Input

7 pF

Capacitance, Output

7 pF

Current, Input, Leakage

±1 μA

Current, Operating

1 mA (Read), 5 mA (Write)

Current, Output, Leakage

±1

Data Retention

>200 yrs.

Density

Interface

SPI Bus

Memory Type

Serial EEPROM

Organization

512×8

Package Type

SOIC

Temperature, Operating

-40 to +85 °C

Time, Access

230 ns

Time, Address Hold

250

Time, Address Setup

250

Time, Fall

2 μs

Time, Rise

2 μs

Voltage, Esd

>4 kV

Voltage, Input, High

3.5 V

Voltage, Input, Low

0.75 V

Voltage, Output, High

2 V

Voltage, Output, Low

0.4 V

Voltage, Supply

2.5 to 5.5 V

Lead Free Status / Rohs Status

RoHS Compliant part Electrostatic Device

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Device Selection Table

Features:

• Low-power CMOS technology:

• 512 x 8-bit organization

• 16 byte page

• Write cycle time: 5 ms max.

• Self-timed Erase and Write cycles

• Block write protection:

• Built-in write protection:

• Sequential read

• High reliability:

• 8-pin PDIP, SOIC and TSSOP packages

• Temperature ranges supported:

Description:

The Microchip Technology Inc. 25AA040/25LC040/

25C040 (25XX040

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.

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

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

25AA040

25LC040

25C040

- Write current: 3 mA, typical

- Read current: 500 A, typical

- Standby current: 500 nA, typical

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

- Power on/off data protection circuitry

- Write enable latch

- Write-protect pin

- Endurance: 1M cycles

- Data retention: > 200 years

- ESD protection: > 4000V

- Industrial (I):

- Automotive (E) (25C040):

Number

Part

1.8-5.5V

2.5-5.5V

4.5-5.5V

Range

) is a 4 Kbit serial Electrically

Max. Clock

Frequency

4K SPI Bus Serial EEPROM

1 MHz

2 MHz

3 MHz

-40 C to +85 C

-40°C to +125°C

25AA040/25LC040/25C040

Ranges

Temp.

I,E

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

HOLD

SCK

TSSOP

SOIC

PDIP

I/O Control

STATUS

Not recommended for new designs –

Please use 25AA040A or 25LC040A.

Logic

HOLD

Memory

Control

Logic

XDEC

SCK

DS21204E-page 1

HOLD

SCK

HOLD

SCK

Sense Amp.

R/W Control

Y Decoder

HV Generator

EEPROM

Latches

Page

Array

Related parts for 25LC040-I/SN

25LC040-I/SN Summary of contents

Page 1

... Temperature ranges supported: - Industrial (I Automotive (E) (25C040): -40°C to +125°C Description: The Microchip Technology Inc. 25AA040/25LC040/ * 25C040 (25XX040 ) 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 ...

Page 2

... ELECTRICAL CHARACTERISTICS (†) Absolute Maximum Ratings V .............................................................................................................................................................................7.0V CC All inputs and outputs w.r.t. V .......................................................................................................... -0. Storage temperature .................................................................................................................................-65°C to 150°C Ambient temperature under bias ...............................................................................................................-65°C to 125°C ESD protection on all pins ......................................................................................................................................... 4 KV † NOTICE: Stresses above those listed under “Absolute Maximum Ratings” may cause permanent damage to the device ...

Page 3

... Note 1: This parameter is periodically sampled and not 100% tested. 2: This parameter is not tested but ensured by characterization. For endurance estimates in a specific application, please consult the Total Endurance™ Model which can be obtained from our web site © 2006 Microchip Technology Inc. 25AA040/25LC040/25C040 Industrial (I -40°C to +85°C ...

Page 4

... Plastic Small Outline (SN) – Narrow, 150 mil (SOIC Units Dimension Limits n Number of Pins p Pitch Overall Height A Molded Package Thickness A2 Standoff § A1 Overall Width E Molded Package Width E1 Overall Length D Chamfer Distance h Foot Length L Foot Angle c Lead Thickness Lead Width B Mold Draft Angle Top ...

Page 5

... Industrial Temp., TSSOP package e) 25AA040XT-I/ST: Alternate Pinout, Tape and Reel, Industrial Temp., TSSOP package f) 25LC040-I/P: Industrial Temp., PDIP package g) 25LC040-I/SN: Industrial Temp., SOIC package h) 25LC040T-I/SN: Tape and Reel, Industrial Temp., SOIC package i) 25LC040X-I/ST: Alternate Pinout, Industrial Temp., TSSOP package j) 25LC040XT-I/ST: Alternate Pinout, Tape and Reel, Industrial Temp ...

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