AT25DF641 datasheet(57/59 Pages) ATMEL

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3680E–DFLASH–12/08

AT25DF641 [Preliminary]

18. Errata

18.1

Erase Suspend

Issue: Parts may not program correctly if a device is in the Erase Suspend state.

Workaround: None. It is recommended to not use the Byte/Page Program commands (opcodes

02h and A2h) during an Erase Suspend state. Systems should resume from Erase Suspend first

before attempting to program a device.

Resolution: The Erase Suspend feature is being fixed with a new revision of the device. Please

contact Atmel for the estimated availability of devices with the fix.

18.2

AC Characteristics – Maximum Clock Frequencies for Read Operations

Issue: Devices currently do not meet the maximum specified clock frequency for the following

read operations: Read Array, Read Sector Protection Registers, Read Sector Lockdown Regis-

ters, Read OTP Security Register, Read Status Register, and Read Manufacturer and Device

ID. Reading at clock frequencies higher than those listed below could cause read errors.

Workaround: None. Devices are limited to the clock frequencies specified above.

Resolution: The clock frequency issues are being fixed with a new revision of the device.

Please contact Atmel for the estimated availability of devices with the fix.

Symbol

Opcodes Affected

Datasheet Specification

Errata Specification

MAX

1Bh, 3Ch, 35h, 77h, 05h

100 MHz

66 MHz

fCLK

0Bh, 9Fh

85 MHz

66 MHz

fRDLF

03h

50 MHz

33 MHz

RDDO

3Bh

85 MHz

66 MHz

AT25DF641 Datasheet(PDF) 57 Page - ATMEL Corporation