AMC004DFLKA datasheet(5/46 Pages) AMD

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AmC0XXDFLKA

Differences Between the D-Series and

C-Series Cards

The differences between the D-Series Card and the

earlier C-Series Cards are as follows:

s The D-Series Cards are based on AMD’s latest 16

MBit 5.0 Volt-only device, the Am29F016C. The ear-

lier C-Series Cards were based on the 4 MBit 5.0

Volt-only device, the Am29F040.

s The D-Series Cards program faster than the C-

Series Cards. This is due to faster byte write times

and an optimized address unlock sequence for

write operations.

s The D-Series Cards are offered in higher densi-

ties. The D-Series Cards are available in densities

of 4 MBytes, 8 MBytes, 20 MBytes, and 32

MBytes. The earlier C-Series Cards were avail-

able in densities of 1 MByte, 2 MBytes, 4 MBytes

and 10 MBytes.

The additional features that are supported in the new

D-Series Cards include

s The D-Series Cards support the RESET feature.

This allows you to asynchronously RESET the Card

into the read state.

s The D-Series Cards also provide the RY/BY func-

tionality. This feature provides a quick way of deter-

mining if the Card is busy doing a write or erase

operation, or if it is in a position to undertake the

next operation.

s Availability of an additional Toggle bit (D2) to deter-

mine if the Card is in the Embedded Erase or Erase

Suspend mode.

s Programming operations can be executed in 8

µs

pulses, down from the 16

µs on the C-Series

Cards (typical).

s Time out from the rising edge of the WE pulse for

sector erase command reduced from 100

µs to

µs.

s The D-Series Cards offers a low power standby

mode with fast recovery time to read. The typical

standby current (ICCS) is <1 µA with recovery at

standard read access time.

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