AT89C51ED2-RDTUM datasheet(133/137 Pages) ATMEL

133 / 137 page

133

4235K–8051–05/08

AT89C51RD2/ED2

28. Document Revision History

28.1

Changes from 4235A -04/03 to 4135B - 06/03

VIH min changed from 0.2 VCC + 1.1 to 0.2 VCC + 0.9.

Added POR/PFD and reset specific sections.

Added DIL40 package.

Added Flash write programming time specification.

28.2

Changes from 4235B -06/03 to 4235C - 08/03

Changed maximum frequency to 60 MHz in X1 mode and 30 MHz in X2 mode for Vcc =

4.5V to 5.5V and internal code execution.

Added PDIL40 Packaging for AT89C51ED2.

28.3

Changes from 4235C - 08/03 to 4235D - 12/03

Improved explanations throughout the document.

28.4

Changes from 4235D - 12/03 to 4235E - 04/04

Improved explanations throughout the document.

28.5

Changes from 4235E - 04/04 to 4235F - 09/04

Improved explanations in Flash and EEPROM sections.

28.6

Changes from 4235F - 09/04 to 4235G 08/05

Added ‘Industrial & Green” product versions.

28.7

Changes from 4235G 08/05 to 4235H - 10/06

Correction to PDIL figure on page 9.

28.8

Changes from 4235H - 10/06 to 4235I - 04/07

Removal of PDIL40 package offering.

28.9

Changes from 4235I - 04/07 to 4235J - 01/08

Minor corrections throughout the document.

Updated Package drawings.

28.10 Changes from 4235J - 01/08 to 4235K - 05/08

Removed non-green packages from product ordering information.

AT89C51ED2-RDTUM Datasheet(PDF) 133 Page - ATMEL Corporation