DS83C520
EPROM/ROM高速マイクロコントローラ
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製品の詳細
- 80C52 Compatible
- 8051 Pin- and Instruction-Set Compatible
- Four 8-Bit I/O Ports
- Three 16-Bit Timer/Counters
- 256 Bytes Scratchpad RAM
- Large On-Chip Memory
- 16kB Program Memory
- 1kB Extra On-Chip SRAM for MOVX
- ROMSIZE Feature
- Selects Internal ROM Size from 0 to 16kB
- Allows Access to Entire External Memory Map
- Dynamically Adjustable by Software
- Useful as Boot Block for External Flash
- High-Speed Architecture
- 4 Clocks/Machine Cycle (8051 = 12)
- Runs DC to 33MHz Clock Rates
- Single-Cycle Instruction in 121ns
- Dual Data Pointer
- Optional Variable Length MOVX to Access Fast/Slow RAM/Peripherals
- Power Management Mode
- Programmable Clock Source to Save Power
- CPU Runs from (crystal/64) or (crystal/1024)
- Provides Automatic Hardware and Software Exit
- EMI Reduction Mode Disables ALE
- Two Full-Duplex Hardware Serial Ports
- High Integration Controller Includes:
- Power-Fail Reset
- Early-Warning Power-Fail Interrupt
- Programmable Watchdog Timer
- 13 Interrupt Sources with Six External
- Available in 40-pin PDIP, 44-Pin PLCC, 44-Pin TQFP, and 40-Pin Windowed CERDIP
- Factory Mask DS83C520 or EPROM (OTP) DS87C520
ドキュメント
データシート 2
ユーザ・ガイド 1
デザイン・ノート 1
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