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参数资料
| 型号： | AT49F040T-90PI |
| 厂商： | ATMEL CORP |
| 元件分类： | DRAM |
| 英文描述： | 4-Megabit 512K x 8 5-volt Only CMOS Flash Memory |
| 中文描述： | 512K X 8 FLASH 5V PROM, 90 ns, PDIP32 |
| 封装： | 0.600 INCH, PLASTIC, DIP-32 |
| 文件页数： | 1/12页 |
| 文件大小： | 229K |
| 代理商： | AT49F040T-90PI |
1
DIP Top View
4-Megabit
(512K x 8)
5-volt Only
CMOS
Flash Memory
AT49F040
AT49F040T
AT49F040/040T
Features
Single Voltage Operation
– 5V Read
– 5V Reprogramming
Fast Read Access Time - 70 ns
Internal Program Control and Timer
16K bytes Boot Block With Lockout
Fast Erase Cycle Time - 10 seconds
Byte By Byte Programming - 50
μ
s/Byte
Hardware Data Protection
DATA Polling For End Of Program Detection
Low Power Dissipation
– 50 mA Active Current
– 100
μ
A CMOS Standby Current
Typical 10,000 Write Cycles
Description
The AT49F040 is a 5-volt-only in-system Flash Memory. Its 4 megabits of memory is
organized as 524,288 words by 8 bits. Manufactured with Atmel’s advanced nonvola-
tile CMOS technology, the device offers access times to 70 ns with power dissipation
of just 275 mW over the commercial temperature range. When the device is dese-
lected, the CMOS standby current is less than 100
μ
A.
The device contains a user-enabled “boot block” protection feature. Two versions of
the feature are available: the AT49F040 locates the boot block at lowest order
addresses (“bottom boot”); the AT49F040T locates it at highest order addresses (“top
boot”).
Rev. 0998A-A–01/98
AT49F040/040T
Pin Configurations
Pin Name
Function
A0 - A18
Addresses
CE
Chip Enable
OE
Output Enable
WE
Write Enable
I/O0 - I/O7
Data Inputs/Outputs
PLCC Top View
TSOP Top View
Type 1
(continued)
相关PDF资料 |
PDF描述 |
|---|---|
| AT49F040T-90TC | 4-Megabit 512K x 8 5-volt Only CMOS Flash Memory |
| AT49F040T-90TI | 4-Megabit 512K x 8 5-volt Only CMOS Flash Memory |
| AT49F040 | 4 Megabit 512K x 8 5-volt Only CMOS Flash Memory |
| AT49F040-12TC | 4-Megabit 512K x 8 5-volt Only CMOS Flash Memory |
| AT49F040-12TI | 4-Megabit 512K x 8 5-volt Only CMOS Flash Memory |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AT49F040T-90TC | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:4-Megabit 512K x 8 5-volt Only CMOS Flash Memory |
| AT49F040T-90TI | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:4-Megabit 512K x 8 5-volt Only CMOS Flash Memory |
| AT49F080 | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-Megabit 1M x 8 5-volt Only Flash Memory |
| AT49F080-12CC | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-Megabit 1M x 8 5-volt Only Flash Memory |
| AT49F080-12CI | 制造商:ATMEL 制造商全称:ATMEL Corporation 功能描述:8-Megabit 1M x 8 5-volt Only Flash Memory |
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