AT29C432-15TI Datasheet

IC型號：
AT29C432-15TI
PDF描述：
4 Megabit 5-volt Flash with 256K E2PROM Memory
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317.93KB
PDF頁數(shù)：
11頁
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Features

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ConcurrentFlash

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Memory

Unique Architecture Allows the Flash Array

To Be Read During the E

PROM Write Cycle

4 Megabit 5-volt Flash

Configured as a 512K x 8 Memory Array

120 ns Read Access Time

Sector Program Operation

Single Cycle Reprogram (No Erase Necessary)

2048 Sectors, 256-Bytes Wide

10 ms Sector Rewrite

JEDEC Standard Software Data Protection

256K bit Full Feature E

PROM

Configured as a 32K x 8 Memory Array

Byte or Page (16 bytes) Write Capability

Write Cycle Time: 10 ms

JEDEC Standard Software Data Protection

Pinout Similar to 32-Pin 4 Mb Flash

Data Memory Endurance: 10,000 cycles

4 Megabit

5-volt Flash with

256K E

PROM

Memory

AT29C432

ConcurrentFlash

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Preliminary

Description

The AT29C432 is a CMOS memory specifically designed for applications requiring

both a high density nonvolatile program memory and a smaller nonvolatile data mem-

ory. The AT29C432 provides this in the form of a 4 megabit Flash array integrated

with a 256K bit full featured E

PROM array on the same device. A unique feature of

this device is its concurrent read while writing capability. This provides the host sys-

tem read access to the Flash program memory during the write cycle time of the

PROM.

The two memory arrays share all I/O lines, Address lines and OE and WE inputs.

Each memory array has its own Chip Enable input: CEF for the Flash array and CEE

for the E

PROM array.

Additionally, Software Data Protection has been independently implemented for both

arrays and is always enabled. The AT29C432 has a pinout similar to the AT29C040A

Flash memory. A system designer using a Flash memory for program storage and

another smaller, non volatile memory for data storage can easily replace both memo-

ries with the AT29C432.

Pin Configurations

Pin Name

A0 - A18

Function

Addresses

Output Enable

Write Enable

Chip Enable E

PROM

Chip Enable Flash

No Connect

TSOP

Type 1

I/O0 - I/O7 Data Inputs/Outputs

CEE

CEF

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AT29C432-15TI Datasheet

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