參數(shù)資料
型號(hào): AT45DB642
廠商: Atmel Corp.
英文描述: 64-megabit 2.7-volt Only Dual-interface DataFlash
中文描述: 64兆位2.7伏,只有雙接口的DataFlash
文件頁(yè)數(shù): 1/37頁(yè)
文件大?。?/td> 317K
代理商: AT45DB642
1
Features
Single 2.7V - 3.6V Supply
Dual-interface Architecture
– Dedicated Serial Interface (SPI Modes 0 and 3 Compatible)
– Dedicated Parallel I/O Interface (Optional Use)
Page Program Operation
– Single Cycle Reprogram (Erase and Program)
– 8192 Pages (1056 Bytes/Page) Main Memory
Supports Page and Block Erase Operations
Two 1056-byte SRAM Data Buffers – Allows Receiving of Data
while Reprogramming the Flash Array
Continuous Read Capability through Entire Array
– Ideal for Code Shadowing Applications
Low-power Dissipation
– 4 mA Active Read Current Typical
– 2 μA CMOS Standby Current Typical
20 MHz Maximum Clock Frequency – Serial Interface
5 MHz Maximum Clock Frequency – Parallel Interface
Hardware Data Protection
Commercial and Industrial Temperature Ranges
Description
The AT45DB642 is a 2.7-volt only, dual-interface Flash memory ideally suited for a
wide variety of digital voice-, image-, program code- and data-storage applications. The
dual-interface of the AT45DB642 allows a dedicated serial interface to be connected to a
DSP and a dedicated parallel interface to be connected to a microcontroller or vice versa.
64-megabit
2.7-volt Only
Dual-interface
DataFlash
AT45DB642
Pin Configurations
Pin Name
Function
CS
Chip Select
SCK/CLK
Serial Clock/Clock
SI
Serial Input
SO
Serial Output
I/O7 - I/O0
Parallel Input/Output
WP
Hardware Page Write Protect Pin
RESET
Chip Reset
RDY/BUSY
Ready/Busy
SER/PAR
Serial/Parallel Interface Control
DataFlash Card
(1)
Note:
1. See AT45DCB008 Datasheet.
7 6 5 4 3 2 1
TSOP Top View
Type 1
Note:
*Optional Use
See pin description
text for connection information.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
NC
NC
RDY/BUSY
RESET
WP
NC
NC
NC
VCC
GND
NC
NC
NC
NC
CS
SCK/CLK
SI*
SO*
NC
NC
NC
NC
NC
NC
NC
I/O7*
I/O6*
I/O5*
I/O4*
VCCP*
GNDP*
I/O3*
I/O2*
I/O1*
I/O0*
SER/PAR*
NC
NC
NC
NC
Rev. 1638F
DFLSH
09/02
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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AT45DB642D-CNU 功能描述:閃存 64M 2.7-3.6V 66Mhz Serial 閃存 RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲(chǔ)類(lèi)型:Flash 存儲(chǔ)容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類(lèi)型: 接口類(lèi)型:SPI 訪問(wèn)時(shí)間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel