Rainbow Electronics T89C51RD2 User Manual
Description, Features
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Table of contents
Document Outline
- 1. Description
- 2. Features
- 3. Block Diagram
- 4. SFR Mapping
- 5. Pin Configuration
- 6. Enhanced Features
- 6.1. X2 Feature and Clock Generation
- 6.2. Dual Data Pointer Register Ddptr
- 6.3. Expanded RAM (XRAM)
- 6.4. Timer 2
- 6.5. Programmable Counter Array PCA
- 6.6. Serial I/O Port
- 6.7. Interrupt System
- 6.8. Idle mode
- 6.9. Power-Down Mode
- 6.10. Hardware Watchdog Timer
- 6.11. ONCE(TM) Mode (ON Chip Emulation)
- 6.12. Reduced EMI Mode
- 7. EEPROM data memory
- 8. FLASH EEprom Memory
- 9. Electrical Characteristics
- 9.1. Absolute Maximum Ratings (1)
- 9.2. DC Parameters for Standard Voltage (1)
- 9.3. DC Parameters for Standard Voltage (2)
- 9.4. DC Parameters for Low Voltage
- 9.5. AC Parameters
- 9.5.1. Explanation of the AC Symbols
- 9.5.2. External Program Memory Characteristics
- 9.5.3. External Program Memory Read Cycle
- 9.5.4. External Data Memory Characteristics
- 9.5.5. External Data Memory Write Cycle
- 9.5.6. External Data Memory Read Cycle
- 9.5.7. Serial Port Timing - Shift Register Mode
- 9.5.8. Shift Register Timing Waveforms
- 9.5.9. FLASH EEPROM Programming and Verification Characteristics
- 9.5.10. FLASH EEPROM Programming and Verification Waveforms
- 9.5.11. External Clock Drive Characteristics (XTAL1)
- 9.5.12. External Clock Drive Waveforms
- 9.5.13. AC Testing Input/Output Waveforms
- 9.5.14. Float Waveforms
- 9.5.15. Clock Waveforms
- 10. Ordering Information