 2004 Microchip Technology Inc.

DS21230D-page 1

25AA080/25LC080/25C080

Device Selection Table

Features:

• Low-power CMOS technology:

- Write current: 3 mA maximum

- Read current: 500

µA typical

- Standby current: 500 nA typical

• 1024 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: 1 M cycles

- Data retention: > 200 years

- ESD protection: > 4000V

• 8-pin PDIP and SOIC (150 mil)

• Temperature ranges supported:

Description:

The Microchip Technology Inc. 25AA080/25LC080/

Erasable PROMs. The memory is accessed via a

simple Serial Peripheral Interface™ (SPI™) compati-

ble 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.

Package Types

Block Diagram

Part

Number

Range

Max. Clock

Frequency

Temp.

Ranges

25AA080

1.8-5.5V

1 MHz

I

25LC080

2.5-5.5V

2 MHz

I

25C080

4.5-5.5V

3 MHz

I,E

- Industrial (I):

-40

°Cto +85°C

- Automotive (E) (25C080):

-40°C to +125°C

CS

SO

WP

HOLD

SCK

SI

1

2

3

4

8

7

6

5

PDIP/SOIC

SI

SO

SCK

CS

HOLD

WP

Status

Register

I/O Control

Memory

Control

Logic

X

Dec

HV Generator

EEPROM

Array

Page Latches

Y Decoder

Sense Amp.

R/W Control

Logic

*25XX080 is used in this document as a generic part number for the

25AA080/25LC080/25C080 devices.

SPI™ is a trademark of Motorola Inc.

Not recommended for new designs –

Please use 25AA080A/B or 25LC080A/B.