34AA02-E/P【PDF 1/36 页】IC EEPROM 2KBIT 400KHZ 8DIP

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34AA02/34LC02

2K I 2 C ? Serial EEPROM Software Write-Protect

Features:

? Permanent and Resettable Software Write-Protect

Package Types

PDIP/SOIC/TSSOP/MSOP/TDFN

for Lower Half of the Array (00h-7Fh)

? Single Supply with Operation Down to 1.7V

? Low-Power CMOS Technology:

- Read current 1 mA, typical

- Standby current, 100 nA, typical

V SS

V CC

SCL

SDA

A0 1

A1 2

A2 3

V SS 4

8 V CC

7 WP

6 SCL

5 SDA

? 2-Wire Serial Interface Bus, I 2 C? Compatible

? Cascadable up to Eight Devices

SOT-23

? Schmitt Trigger Inputs for Noise Suppression

? Output Slope Control to Eliminate Ground Bounce

? 100 kHz and 400 kHz Compatibility

? 1 MHz Clock for LC Versions

SCL

V SS

SDA

6 V CC

5 A0

4 A1

? Page Write Time 3 ms, typical

? Self-Timed Erase/Write Cycle

? 16-Byte Page Write Buffer

? ESD Protection > 4,000V

? Software Write Protection for Lower 128 Bytes

? Hardware Write Protection for Entire Array

? More than 1 Million Erase/Write Cycles

? Data Retention > 200 Years

? 8-Lead PDIP, SOIC, TSSOP, MSOP and TDFN

Packages

? 6-Lead SOT-23 Package

? Pb-free and RoHS Compliant

? Available for Extended Temperature Ranges:

- Industrial (I): -40°C to +85°C

- Automotive (E): -40°C to +125°C

Device Selection Table

Description:

The Microchip Technology Inc. 34AA02/34LC02

(34XX02*) is a 2 Kbit Electrically Erasable PROM

capable of operation across a broad voltage range

(1.7V to 5.5V). This device has two software write-

protect features for the lower half of the array, as well

as an external pin that can be used to write-protect the

entire array. This allows the system designer to protect

none, half, or all of the array, depending on the

application. The device is organized as one block of

256 x 8-bit memory with a 2-wire serial interface. Low-

voltage design permits operation down to 1.7V, with

standby and active currents of only 100 nA and 1 mA,

respectively. The 34XX02 also has a page write

capability for up to 16 bytes of data. The 34XX02 is

available in the standard 8-pin PDIP, surface mount

SOIC, TSSOP, MSOP and TDFN packages. The

34XX02 is also available in the 6-lead, SOT-23

Part

Number

34AA02

34LC02

V CC

Range

1.7-5.5

2.2-5.5

Max. Clock

Frequency

400 kHz (1)

1 MHz

Temp

Ranges

I,E

package.

Note 1:

100 kHz for V CC <1.8V.

*34XX02 is used in this document as a generic part number

for the 34AA02/34LC02 devices.

? 2011 Microchip Technology Inc.

DS22029F-page 1

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