AM29F400BT-90DPI1 データシートの表示（PDF） - Advanced Micro Devices

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AM29F400BT-90DPI1

4 Megabit (512 K x 8-Bit/256 K x 16-Bit) CMOS 5.0 Volt-only Boot Sector Flash Memory

Advanced Micro Devices 

PRELIMINARY

PRODUCT SELECTOR GUIDE

Family Part Number

Am29F400B

Speed Option

VCC = 5.0 V ± 5%

VCC = 5.0 V ± 10%

-55

-60

-70

-90

Max access time, ns (tACC)

55

60

70

90

Max CE# access time, ns (tCE)

55

60

70

90

Max OE# access time, ns (tOE)

30

30

30

35

Note: See “AC Characteristics” for full specifications.

-120

120

120

50

-150

150

150

55

BLOCK DIAGRAM

RY/BY#

VCC

VSS

RESET#

Sector Switches

Erase Voltage

Generator

DQ0–DQ15 (A-1)

Input/Output

Buffers

WE#

BYTE#

CE#

OE#

State

Control

Command

Register

PGM Voltage

Generator

Chip Enable

Output Enable

Logic

Data

STB

Latch

VCC Detector

A0–A17

Timer

Y-Decoder

STB

X-Decoder

Y-Gating

Cell Matrix

21505C-1

Am29F400B

3

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