ACTF512K32 datasheet(2/20 Pages) AEROFLEX

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SCD1665 REV B 6/29/01 Plainview NY (516) 694-6700

sealed co-fired ceramic 66 pin, 1.08"SQ PGA

or a 68 lead, .88"SQ Ceramic Gull Wing CQFP

package for operation over the temperature

range

-55°C

+125°C

and

military

environment.

Each flash memory die is organized as

512KX8

bits

and

designed

programmed in-system

with

the standard

system 5.0V Vcc supply. A 12.0V VPP is not

required for write or erase operations.

The

MCM can also be reprogrammed with standard

EPROM programmers (with the proper socket).

The standard ACT–F512K32 offers access

times between 60ns and 150ns, allowing

operation

high-speed

microprocessors

without

wait

states.

eliminate

bus

contention, the device has separate chip

enable (CE) and write enable (WE).

The

ACT-F512K32 is command set compatible with

JEDEC

standard

Mbit

EEPROMs.

Commands are written to the command

timings. Register contents serve as input to an

internal state-machine which controls the

erase and programming circuitry. Write cycles

also internally latch addresses and data

needed

for

the

programming

and

erase

operations.

Reading data out of the device is similar to

reading from 12.0V Flash or EPROM devices.

The

ACT-F512K32

programmed

executing the program command sequence.

This will invoke the Embedded Program

Algorithm which is an internal algorithm that

automatically times the program pulse widths

and verifies proper cell margin. Typically, each

sector can be programmed and verified in less

than one second. Erase is accomplished by

executing the erase command sequence. This

will invoke the Embedded Erase Algorithm

which

internal

algorithm

that

automatically preprograms 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.

Each die in the module or any individual

sector of the die is typically erased and verified

1.5

seconds

(if

already

completely

preprogrammed).

Each die also features a sector erase

architecture. The sector mode allows for 64K

byte blocks of memory to be erased and

reprogrammed without affecting other blocks.

The ACT-F512K32 is erased when shipped

from the factory.

The device features single 5.0V power

supply operation for both read and write

functions. lnternally generated and regulated

voltages are provided for the program and

erase

operations.

low

VCC

detector

automatically inhibits write operations on the

loss of power. The end of program or erase is

detected by Data Polling of D7 or by the Toggle

Bit feature on D6. Once the end of a program

or erase cycle has been completed, the device

internally resets to the read mode.

All bits of each die, or all bits within a

sector

die,

are

erased

via

Fowler-Nordhiem

tunneling.

Bytes

are

programmed one byte at a time by hot electron

injection.

DESC Standard Military Drawing (SMD)

numbers are released.

General Description, Cont’d,

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