AT89LP51RB2 Atmel Corporation, AT89LP51RB2 Datasheet - Page 62

• Manufacturer Part Number: AT89LP51RB2
• Manufacturer: Atmel Corporation

Specifications of AT89LP51RB2

• 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

Figure 9-2.
Figure 9-3.
Figure 9-4.
Figure 9-5.
62
Clock Cycles
Clock Cycles
Clock Cycles
Clock Cycles
Instruction
Instruction
Instruction
Instruction
AT89LP51RB2/RC2/IC2 Preliminary
INT0
INT0
INT0
INT0
Minimum Interrupt Response Time (Fast Mode)
Maximum Interrupt Response Time (Fast Mode)
Minimum Interrupt Response Time (Compatibility Mode)
Maximum Interrupt Response Time (Compatibility Mode)
IE0
IE0
IE0
IE0
Cur. Instr.
1
1
Ack.
1
1
Ack.
RETI
LCALL
RETI
LCALL
13
MOVX @/DPTR, A
5
14
ISR
5
1st ISR Instr.
Ack.
MUL AB
10
LCALL
Ack.
37
14
1st ISR Instr.
LCALL
49
ISR
3722A–MICRO–10/11