AT89LP51ED2-20MU Atmel, AT89LP51ED2-20MU Datasheet - Page 121

• 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 17-4. Serial Port Mode 0 (Two-Wire)
3714A–MICRO–7/11
SEND
SHIFT
RXD
TXD
TI
RI
RECEIVE
SHIFT
RXD
TXD
O VERF L O W
(SHIFT CLOCK)
(SHIFT CLOCK)
( D A T A OUT )
( D A T A IN )
TIMER 1
WRITE T O S B U F
WRITE T O SCON (CLEAR RI )
TB8
SMOD1
1
÷2
÷2
0
0
f
sys
1
“1“
INTERNAL B U S
INTERNAL B U S
AT89LP51RD2/ED2/ID2 Preliminary
SM2
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