AM28F256A-70PCB View Datasheet(PDF) - Advanced Micro Devices

Part Name

Description

MFG CO.

AM28F256A-70PCB

256 Kilobit (32 K x 8-Bit) CMOS 12.0 Volt, Bulk Erase Flash Memory with Embedded Algorithms

Advanced Micro Devices 

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SWITCHING WAVEFORMS

Embedded Embedded

Program Setup Program

Addresses

WE#

PA

tWC

tAS

tAH

OE#

CE#

tGHEL

tCPH

tCP

tWS

Data

VCC

tDH

50h

DIN

tDS

Data# Polling

PA

tEHEH3 OR 4

DQ7# DQ7# DOUT

VPP

tVPEL

18879C-21

Notes:

1. DIN is data input to the device.

2. DQ7# is complement of the data written to the device.

3. DOUT is the data written to the device.

Figure 12. AC Waveforms for Embedded Programming Operation Using CE# Controlled Writes

30

Am28F256A

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