AT89LP51ED2-20MU Atmel, AT89LP51ED2-20MU Datasheet - Page 64

• Manufacturer Part Number: AT89LP51ED2-20MU
• Description: 8-bit Microcontrollers - MCU 64KB 20MHz 2.4V-5.5V
• Manufacturer: Atmel

Specifications of AT89LP51ED2-20MU

• Rohs: yes
• Core: 8051
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 20 MHz
• Program Memory Size: 64 KB
• Data Ram Size: 256 B
• On-chip Adc: Yes
• Operating Supply Voltage: 2.4 V to 5.5 V
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: VQFN-44
• Mounting Style: SMD/SMT
• Data Rom Size: 4 KB
• Interface Type: 2-Wire, SPI, UART
• Number Of Programmable I/os: 36
• Number Of Timers: 3
• Processor Series: AT89x
• Program Memory Type: Flash
• Factory Pack Quantity: 360

Figure 9-2.
Figure 9-3.
Figure 9-4.
Figure 9-5.
64
Clock Cycles
Clock Cycles
Clock Cycles
Clock Cycles
Instruction
Instruction
Instruction
Instruction
AT89LP51RD2/ED2/ID2 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
3714A–MICRO–7/11