AT45D081中文资料

AT45D08118-Megabit 5-volt Only Serial DataFlash ™AT45D081Features

•Single 4.5V - 5.5V Supply

•Serial Interface Architecture

•Page Program Operation

–Single Cycle Reprogram (Erase and Program)

–4096 Pages (264 Bytes/Page) Main Memory

•Two 264-Byte Data Buffers – Allows Receiving of Data while Reprogramming of

Non-Volatile Memory

•Internal Program and Control Timer

•Fast Page Program Time – 7 ms Typical

•80 µs Typical Page to Buffer Transfer Time

•Low Power Dissipation

–15 mA Active Read Current Typical

–10 µA CMOS Standby Current Typical

•10 MHz Max Clock Frequency

•Hardware Data Protection Feature

•Serial Peripheral Interface (SPI) Compatible – Modes 0 and 3

•CMOS and TTL Compatible Inputs and Outputs

•Commercial and Industrial Temperature Ranges

Description

The AT45D081 is a 5-volt only, serial interface Flash memory suitable for in-system reprogramming. Its 8,650,752 bits of memory are organized as 4096 pages of 264-bytes each. In addition to the main memory, the AT45D081 also contains two data buffers of 264-bytes each. The buffers allow receiving of data while a page in the main memory is being reprogrammed. Unlike conventional Flash memories that are accessed randomly with multiple address lines and a parallel interface, the DataFlash uses a serial interface to sequentially access its data. The simple serial interface facil-itates hardware layout, increases system reliability, minimizes switching noise, and 0871A-A–6/97

Pin Configurations Pin Name Function

CS Chip Select

SCK Serial Clock

SI Serial Input

SO Serial Output

WP Hardware Page Write

Protect Pin

RESET Chip Reset RDY/BUSY Ready/Busy (continued)TSOP Top View Type 1

1234567891011121314151632313029282726252423222120191817RDY/BUSY RESET WP NC NC NC VCC GND NC NC NC NC CS SCK SI SO NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC

NC NC

NC

NC

NC SOIC 12345678910111213142827262524232221201918171615GND NC NC CS SCK SI SO NC NC NC NC NC NC NC VCC NC NC WP RESET RDY/BUSY NC NC NC NC NC

NC NC NC 元器件交易网