AT45DB321_14 datasheet(1/21 Pages) ATMEL

tên linh kiện	AT45DB321

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1

32-megabit

2.7-volt Only

Serial

DataFlash®

AT45DB321

Recommend using

AT45DB321B for new

designs.

Features

• Single 2.7V - 3.6V Supply

• Serial-interface Architecture

• Page Program Operation

– Single Cycle Reprogram (Erase and Program)

– 8192 Pages (528 Bytes/Page) Main Memory

• Optional Page and Block Erase Operations

• Two 528-byte SRAM Data Buffers – Allows Receiving of Data while Reprogramming of

Nonvolatile Memory

• Internal Program and Control Timer

• Fast Page Program Time – 7 ms Typical

• 120 µs Typical Page to Buffer Transfer Time

• Low-power Dissipation

– 4 mA Active Read Current Typical

– 3 µA CMOS Standby Current Typical

• 13 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 AT45DB321 is a 2.7-volt only, serial-interface Flash memory suitable for in-sys-

tem reprogramming. Its 34,603,008 bits of memory are organized as 8192 pages of

528 bytes each. In addition to the main memory, the AT45DB321 also contains two

SRAM data buffers of 528 bytes each. The buffers allow receiving of data while a

page in the main memory is being reprogrammed. Unlike conventional Flash memo-

Rev. 1121E–01/01

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

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

RDY/BUSY

RESET

WP

NC

VCC

GND

NC

CS

SCK

SI

SO

32

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

NC

CBGA Top View Through Package

A

B

C

D

E

F

G

H

J

1

2345

NC

VCC

WP

RESET

NC

GND

RDY/BSY

SI

NC

SCK

CS

SO

NC

AT45DB321

Preliminary 16-

Megabit 2.7-volt

Only Serial

DataFlash

Số phần tương tự - AT45DB321_14

nhà sản xuất	tên linh kiện	bảng dữ liệu	Giải thích chi tiết về linh kiện
ATMEL Corporation	AT45DB321-CC	154Kb / 20P	32-Megabit 2.7-volt Only Serial DataFlash
	AT45DB321-CI	154Kb / 20P	32-Megabit 2.7-volt Only Serial DataFlash
	AT45DB321-TC	154Kb / 20P	32-Megabit 2.7-volt Only Serial DataFlash
	AT45DB321-TI	154Kb / 20P	32-Megabit 2.7-volt Only Serial DataFlash
	AT45DB321B	230Kb / 32P	32-megabit 2.7-volt Only DataFlash

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AT45DB321 bảng dữ liệu(PDF) 1 Page - ATMEL Corporation

AT45DB321 bảng dữ liệu(HTML) 1 Page - ATMEL Corporation

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Mô tả tương tự - AT45DB321_14

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