DS89C440-XXX View Datasheet(PDF) - Maxim Integrated

Part Name

Description

Manufacturer

DS89C440-XXX

Ultra-High-Speed Flash Microcontrollers

Maxim Integrated 

DS89C430/DS89C450 Ultra-High-Speed Flash Microcontrollers

REVISION HISTORY

DATE

111003

New product release.

DESCRIPTION

032204

DC Electrical Characteristics table: Corrected typo—Under Supply Current for Active and Idle Mode,

changed Units from “A” to “mA.”

Note 15: Changed number of external clock cyles per system clock and minimum external clock

speeds.

Flash Memory Programming Characteristics table: Removed Note 20 (room temperature only) from the

Data Retention parameter.

060204

Changed Write/Erase Endurance parameter from 20,000 cycles to 10,000 cycles.

Removed original Table 5. Parallel Programming Instruction Set, and replaced it with a paragraph

introducing the subject and advising interested parties to contact the factory for more information.

Clarified IAP programming sequence.

060805

091906

040507

Added lead-free devices to Ordering Information table.

Removed references to DS89C440 and/or added “Contact factory or replace with DS89C430 or

DS89C450.”

Added clarification to the Security Features section and Table 3 that flash security levels 1, 2, and 3

should not be used when executing external code (page 22); corrected Figure 8 to show PSEN high

through the second machine cycle (page 28).

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Maxim/Dallas Semiconductor cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim/Dallas Semiconductor product. No

circuit patent licenses are implied. Maxim/Dallas Semiconductor reserves the right to change the circuitry and specifications without notice at any time.

Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 408-737-7600

© 2007 Maxim Integrated Products

The Maxim logo is a registered trademark of Maxim Integrated Products, Inc. The Dallas logo is a registered trademark of Dallas Semiconductor Corporation.

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