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DS89C420 +BOM

Ultra-High-SpeedMicrocontroller

Hersteller:

DALLAS
Herstellerteil #:

DS89C420
Datenblatt:

DS89C420 Datenblatt (PDF)
Paket/Koffer:

TQFP44
RoHS:
EDA/CAD Modelle:

Fordern Sie kostenlose CAD-Modelle für an DS89C420

Email: [email protected]

Skype: live:.cid.ab6b29428937b76

Tel: +852 95804164

DS89C420 Allgemeine Beschreibung

GENERAL DESCRIPTIONThe DS89C420 offers the highest performance available in 8051-compatible microcontrollers. It features a redesigned processor core that executes every 8051 instruction (depending on the instruction type) up to 12 times faster than the original for the same crystal speed. Typical applications see a speed improvement of 10 times using the same code and crystal. The DS89C420 offers a maximum crystal speed of 33MHz, achieving execution rates up to 33 million instructions per second (MIPS).FEATURES■ 80C52 Compatible - 8051 Pin and Instruction-Set Compatible - Four Bidirectional I/O Ports - Three 16-Bit Timer Counters - 256 Bytes Scratchpad RAM■ On-Chip Memory - 16kB Flash Memory - In-System Programmable through Serial Port - 1kB SRAM for MOVX■ ROMSIZE Feature - Selects Internal Program Memory Size from 0 to 16k - Allows Access to Entire External Memory Map - Dynamically Adjustable By Software■ 80C52 compatible - 8051 pin and instruction-set compatible - Four bidirectional I/O ports - Three 16-bit timer counters - 256 bytes scratchpad RAM■ On-chip memory - 16kB flash memory - In-system programmable through serial port - 1kB SRAM for MOVX■ ROMSIZE feature - Selects internal program memory size from 0 to 16k - Allows access to entire external memory map - Dynamically adjustable by software■ High-speed architecture - 1 clock-per-machine cycle - DC to 33MHz operation - Single-cycle instruction in 30ns - Optional variable length MOVX to access fast/slow peripherals - Dual data pointers with auto increment/decrement and toggle select - Supports four paged modes■ Power Management Mode - Programmable clock divider - Automatic hardware and software exit■ Two full-duplex serial ports■ Programmable watchdog timer■ 13 interrupt sources (six external)■ Five levels of interrupt priority■ Power-fail reset■ Early warning power-fail interruptAPPLICATIONS Data Logging Vending Automotive Test Equipment Motor Control Magstripe Reader/Scanner Consumer Electronics Gaming Equipment Appliances (Washers, Microwaves, etc.) Telephones HVAC Building Security and Door Access Control Building Energy Control and Management Uninterruptible Power Supplies Programmable Logic Controllers Industrial Control and Automation

Hauptmerkmale

80C52 Compatible
- 8051 Pin and Instruction-Set Compatible
- Four Bidirectional I/O Ports
- Three 16-Bit Timer Counters
- 256 Bytes Scratchpad RAM
On-Chip Memory
- 16kB Flash Memory
- In-System Programmable through Serial Port
- 1kB SRAM for MOVX
ROMSIZE Feature
- Selects Internal Program Memory Size from 0 to 16k
- Allows Access to Entire External Memory Map
- Dynamically Adjustable By Software
80C52 compatible
- 8051 pin and instruction-set compatible
- Four bidirectional I/O ports
- Three 16-bit timer counters
- 256 bytes scratchpad RAM
On-chip memory
- 16kB flash memory
- In-system programmable through serial port
- 1kB SRAM for MOVX
ROMSIZE feature
- Selects internal program memory size from 0 to 16k
- Allows access to entire external memory map
- Dynamically adjustable by software
High-speed architecture
- 1 clock-per-machine cycle
- DC to 33MHz operation
- Single-cycle instruction in 30ns
- Optional variable length MOVX to access fast/slow peripherals
- Dual data pointers with auto increment/decrement and toggle select
- Supports four paged modes
Power Management Mode
- Programmable clock divider
- Automatic hardware and software exit
Two full-duplex serial ports
Programmable watchdog timer
13 interrupt sources (six external)
Five levels of interrupt priority
Power-fail reset
Early warning power-fail interrupt

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