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Am29F016D Known Good Die

June 11, 2002

SU P P L E MEN T

GENERAL DESCRIPTION

The Am29F016D in Known Good Die (KGD) form is a 16

Mbit, 5.0 volt-only Flash memory. AMD defines KGD as

standard product in die form, tested for functionality and

speed. AMD KGD products have the same reliability and

quality as AMD products in packaged form.

Am29F016D Features

The Am29F016D is a 16 Mbit, 5.0 volt-only Flash

memory organized as 2,097,152 bytes of 8 bits each.

The 2 Mbytes of data are divided into 32 sectors of 64

Kbytes each for flexible erase capability. The 8 bits of

data appear on DQ0–DQ7. The Am29F016D is

manufactured using AMD’s 0.32 µm process tech-

nology. This device is designed to be programmed

operations. The device can also be programmed in

standard EPROM programmers.

The standard device offers an access time of 120 ns,

allowing high-speed microprocessors to operate without

wait states. To eliminate bus contention, the device has

separate chip enable (CE#), write enable (WE#), and

output enable (OE#) controls.

The device is entirely command set compatible with the

JEDEC single-power-supply Flash standard. Com-

mands are written to the command register using stan-

dard microprocessor write timings. Register contents

serve as input to an internal state machine that controls

the erase and programming circuitry. Write cycles also

internally latch addresses and data needed for the pro-

gramming and erase operations. Reading data out of

the device is similar to reading from 12.0 volt Flash or

EPROM devices.

The device is programmed by executing the program

command sequence. This invokes the Embedded

Program algorithm—an internal algorithm that automat-

ically times the program pulse widths and verifies proper

cell margin. The device is erased by executing the erase

command sequence. This invokes the Embedded Erase

algorithm—an internal algorithm that automatically pre-

programs the array (if it is not already programmed)

before executing the erase operation. During erase, the

device automatically times the erase pulse widths and

verifies proper cell margin.

The sector erase architecture allows memory sectors to

be erased and reprogrammed without affecting the data

contents of other sectors. A sector is typically erased

and verified within one second. The device is erased

when shipped from the factory.

The hardware sector group protection feature disables

both program and erase operations in any combination

of the eight sector groups of memory. A sector group

consists of four adjacent sectors.

The Erase Suspend feature enables the system to put

erase on hold for any period of time to read data from, or

program data to, a sector that is not being erased. True

background erase can thus be achieved.

The device requires only a single 5.0 volt power supply

for both read and write functions. Internally generated

and regulated voltages are provided for the program and

inhibits write operations during power transitions. The

host system can detect whether a program or erase

cycle is complete by using the RY/BY# pin, the DQ7

(Data# Polling) or DQ6 (toggle) status bits. After a

program or erase cycle has been completed, the device

automatically returns to the read mode.

A hardware RESET# pin terminates any operation in

progress. The internal state machine is reset to the read

mode. The RESET# pin may be tied to the system reset

circuitry. Therefore, if a system reset occurs during

either an Embedded Program or Embedded Erase algo-

rithm, the device is automatically reset to the read mode.

This enables the system’s microprocessor to read the

boot-up firmware from the Flash memory.

AMD’s Flash technology combines years of Flash

memory manufacturing experience to produce the

highes t lev els of qualit y, r eliabilit y, and c o s t

effectiveness. The device electrically erases all bits

within a sector simultaneously via Fowler-Nordheim tun-

neling. The bytes are programmed one byte at a time

using the EPROM programming mechanism of hot elec-

tron injection.

Electrical Specifications

Refer to the Am29F016D data sheet, publication

number 21444, for full electrical specifications on the

Am29F016D in KGD form.

PRODUCT SELECTOR GUIDE

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Am29F016D KGD

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