DS83C530

EPROM微控制器，带有实时时钟

Viewing:

产品详情

80C52 Compatible
- 8051 Instruction-Set Compatible
- Four 8-Bit I/O Ports
- Three 16-Bit Timer/Counters
- 256 Bytes Scratchpad RAM
Large On-Chip Memory
- 16kB EPROM (OTP)
- 1kB Extra On-Chip SRAM for MOVX
ROMSIZE Features
- Selects Effective On-Chip ROM Size from 0 to 16kB
- Allows Access to Entire External Memory Map
- Dynamically Adjustable by Software
- Useful as Boot Block for External Flash
Nonvolatile Functions
- On-Chip Real-Time Clock with Alarm Interrupt
- Battery Backup Support of 1kB SRAM
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 Saves Power
- 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
14 Total Interrupt Sources with Six External