Home

25AA320_25LC320_25C320| Datasheet

By datasheet - June 10th, 2008

25AA320_25LC320_25C320| Datasheet

Datasheet preview, take a look at Datasheets before downloading (Data Sheet is available on manufacturer site)


25AA320/25LC320/25C320
32K SPITM Bus Serial EEPROM
Device Selection Table
Part Number 25AA320 25LC320 25C320 VCC Range 1.8-5.5V 2.5-5.5V 4.5-5.5V Max. Clock Frequency 1 MHz 2 MHz 3 MHz Temp. Ranges I I,E I,E

Description:
The Microchip Technology Inc. 25AA320/25LC320/ 25C320 (25XX320*) are 32 Kbit serial Electrically Erasable PROMs. The memory is accessed via a simple Serial Peripheral Interface (SPITM) 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, transitions on its inputs will be ignored, with the exception of Chip Select, allowing the host to service higher priority interrupts.

Features:
Low-power CMOS technology: - Write current: 3 mA maximum - Read current: 500 uA typical - Standby current: 500 nA typical 4096 x 8 bit organization 32 byte page Write cycle time: 5 ms maximum 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 E/W cycles - Data retention: > 200 years - ESD protection: > 4000V 8-pin PDIP, SOIC and TSSOP packages 14-lead TSSOP package Temperature ranges supported: - Industrial (I): -40 C to +85 C - Automotive (E): -40 C to +125 C

Block Diagram
Status Register HV Generator

I/O Control Logic

Memory Control Logic

EEPROM Array XDEC

Page Latches

SI SO CS SCK HOLD WP VCC VSS Sense Amp. R/W Control Y Decoder

Package Types
PDIP, SOIC CS SO WP VSS 1 8 VCC HOLD SCK SI HOLD VCC CS SO 1 TSSOP 8 SCK SI VSS WP CS SO NC NC NC WP VSS 1 2 3 4 5 6 7 TSSOP 14 13 12 11 10 9 8 VCC HOLD NC NC NC SCK SI

25XX320

25XX320

25XX320

2 3 4

7 6 5

2 3 4

7 6 5

*25XX320 is used in this document as a generic part number for the 25AA320/25LC320/25C320 devices.

2004 Microchip Technology Inc.

DS21227E-page 1


25AA320_25LC320_25C320 Datasheet microchip Download PDF

Add this permalink to your bookmarks for future download of 25AA320_25LC320_25C320 datasheet

Permalink: http://datasheet.emcelettronica.com/microchip/25AA320_25LC320_25C320