AT89LP51RC2 Atmel Corporation, AT89LP51RC2 Datasheet - Page 252

• Manufacturer Part Number: AT89LP51RC2
• Manufacturer: Atmel Corporation

Specifications of AT89LP51RC2

• Flash (kbytes): 32 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-1C
• Max I/o Pins: 42
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Adc Channels: 7
• Adc Resolution (bits): 10
• Adc Speed (ksps): 153.8
• Sram (kbytes): 1.375
• Self Program Memory: API
• Operating Voltage (vcc): 2.4 to 5.5
• Timers: 4
• Isp: SPI/OCD/UART
• Watchdog: Yes

Table of Contents (Continued)
iv
AT89LP51RB2/RC2/IC2 Preliminary
19 Two-Wire Serial Interface .................................................................... 134
20 Dual Analog Comparators ................................................................... 157
21 Digital-to-Analog/Analog-to-Digital Converter .................................. 164
22 Instruction Set Summary .................................................................... 173
23 On-Chip Debug System ....................................................................... 183
24 Flash Memory Programming .............................................................. 185
18.5
18.6
19.1
19.2
19.3
19.4
19.5
19.6
20.1
20.2
20.3
21.1
21.2
21.3
21.4
21.5
21.6
21.7
22.1
23.1
23.2
23.3
24.1
24.2
24.3
24.4
24.5
Serial Clock Timing ........................................................................................131
Registers .......................................................................................................132
Data Transfer and Frame Format ..................................................................135
Multi-master Bus Systems, Arbitration and Synchronization .........................137
Overview of the TWI Module .........................................................................139
Register Overview .........................................................................................141
Using the TWI ................................................................................................142
Transmission Modes .....................................................................................144
Analog Input Muxes .......................................................................................158
Internal Reference Voltage ............................................................................159
Comparator Interrupt Debouncing .................................................................159
ADC Operation ..............................................................................................166
Temperature Sensor ......................................................................................167
DAC Operation ..............................................................................................167
Clock Selection ..............................................................................................168
Starting a Conversion ....................................................................................169
Noise Considerations ....................................................................................169
Registers .......................................................................................................170
Instruction Set Extensions .............................................................................177
Physical Interface ..........................................................................................183
Software Breakpoints ....................................................................................184
Limitations of On-Chip Debug .......................................................................184
Memory Organization ....................................................................................186
User Configuration Fuses ..............................................................................188
Flash Hardware Security ...............................................................................189
In-Application Programming (IAP) .................................................................190
Bootloader .....................................................................................................199
3722A–MICRO–10/11