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AT29C256-90TI PDF预览

AT29C256-90TI

更新时间: 2024-11-23 22:53:59
品牌 Logo 应用领域
爱特美尔 - ATMEL 闪存
页数 文件大小 规格书
17页 344K
描述
256K (32K x 8) 5-volt Only Flash Memory

AT29C256-90TI 数据手册

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Features  
Fast Read Access Time – 70 ns  
5-volt Only Reprogramming  
Page Program Operation  
– Single Cycle Reprogram (Erase and Program)  
– Internal Address and Data Latches for 64 Bytes  
Internal Program Control and Timer  
Hardware and Software Data Protection  
Fast Program Cycle Times  
– Page (64 Byte) Program Time – 10 ms  
– Chip Erase Time – 10 ms  
DATA Polling for End of Program Detection  
256K (32K x 8)  
5-volt Only  
Flash Memory  
Low-power Dissipation  
– 50 mA Active Current  
– 300 µA CMOS Standby Current  
Typical Endurance > 10,000 Cycles  
Single 5V 10% Supply  
CMOS and TTL Compatible Inputs and Outputs  
Commercial and Industrial Temperature Ranges  
AT29C256  
Description  
The AT29C256 is a five-volt-only in-system Flash programmable and erasable read  
only memory (PEROM). Its 256K of memory is organized as 32,768 words by 8 bits.  
Manufactured with Atmel’s advanced nonvolatile CMOS technology, the device offers  
access times to 70 ns with power dissipation of just 275 mW. When the device is  
deselected, the CMOS standby current is less than 300 µA. The device endurance is  
such that any sector can typically be written to in excess of 10,000 times.  
TSOP Top View  
Pin Configurations  
Type 1  
Pin Name  
A0 - A14  
CE  
Function  
Addresses  
OE  
A11  
A9  
22  
23  
24  
25  
26  
27  
28  
1
21  
20  
19  
18  
17  
16  
15  
14  
13  
12  
11  
10  
9
A10  
CE  
Chip Enable  
Output Enable  
Write Enable  
Data Inputs/Outputs  
No Connect  
I/O7  
I/O6  
I/O5  
I/O4  
I/O3  
GND  
I/O2  
I/O1  
I/O0  
A0  
A8  
OE  
A13  
A14  
VCC  
WE  
A12  
A7  
WE  
I/O0 - I/O7  
NC  
2
3
A6  
4
A5  
5
A4  
6
A1  
DC  
Don’t Connect  
A3  
7
8
A2  
PLCC and LCC Top View  
A6  
A5  
A4  
A3  
A2  
5
6
7
8
9
29 A8  
28 A9  
27 A11  
26 NC  
25 OE  
24 A10  
23 CE  
22 I/O7  
21 I/O6  
A1 10  
A0 11  
NC 12  
I/O0 13  
Note:  
PLCC package pins 1 and 17 are  
DON’T CONNECT.  
Rev. 0046P–FLASH–10/04  

AT29C256-90TI 替代型号

型号 品牌 替代类型 描述 数据表
AT29C256-90TC ATMEL

完全替代

256K (32K x 8) 5-volt Only Flash Memory
AT29C256-12TI ATMEL

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256K (32K x 8) 5-volt Only Flash Memory
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功能相似

256K (32K x 8) 5-volt Only Flash Memory

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