AT89LP51ED2-20AU Atmel, AT89LP51ED2-20AU Datasheet - Page 2

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

Specifications of AT89LP51ED2-20AU

• Rohs: yes
• Core: 8051
• Processor Series: AT89x
• 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: TQFP-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
• Program Memory Type: Flash
• Factory Pack Quantity: 160

1. Pin Configurations
1.1
1.2
2
44-lead TQFP/LQFP
44-lead PLCC
AT89LP51RD2/ED2/ID2 Preliminary
(†MOSI/CEX2/MISO) P1.5
(†MOSI/CEX2/MISO) P1.5
(†MISO/CEX3/SCK) P1.6
(†SCK/CEX4/MOSI) P1.7
(†MISO/CEX3/SCK) P1.6
(†SCK/CEX4/MOSI) P1.7
† SPI in remap mode
‡ AT89LP51ID2 Only
† SPI in remap mode
‡ AT89LP51ID2 Only
(RXD) P3.0
(INT0) P3.2
(INT1) P3.3
(SDA) P4.1
(INT0) P3.2
(INT1) P3.3
(DCL) RST
(TXD) P3.1
(RXD) P3.0
(SDA) P4.1
(TXD) P3.1
(DCL) RST
(T0) P3.4
(T1) P3.5
(T0) P3.4
(T1) P3.5
1
2
3
4
5
6
7
8
9
10
11
7
8
9
10
11
12
13
14
15
16
17
39
38
37
36
35
34
33
32
31
30
29
33
32
31
30
29
28
27
26
25
24
23
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
POL
P4.0 (SCL)
P4.4 (ALE)
P4.5 (PSEN)
P2.7 (A15/AIN3)
P2.6 (A14/AIN2)
P2.5 (A13/AIN1)
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
POL
P4.0 (SCL)
P4.4 (ALE)
P4.5 (PSEN)
P2.7 (A15/AIN3)
P2.6 (A14/AIN2)
P2.5 (A13/AIN1)
3714A–MICRO–7/11