AT89LP51ED2-20AU Atmel, AT89LP51ED2-20AU Datasheet - Page 76

• 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

76
AT89LP51RD2/ED2/ID2 Preliminary
Table 12-6.
Table 12-7.
Port Pin
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P1.0
P1.1
P1.2
P1.3
PxM0.y
0
0
1
1
Pin Function Configurations for Port x Pin y
Port Pin Alternate Functions
PxM0.y
P0M0.0
P0M0.1
P0M0.2
P0M0.3
P0M0.4
P0M0.5
P0M0.6
P0M0.7
P1M0.0
P1M0.1
P1M0.2
P1M0.3
Configuration Bits
PxM1.y
0
1
0
1
PxM1.y
P0M1.0
P0M1.1
P0M1.2
P0M1.3
P0M1.4
P0M1.5
P0M1.6
P0M1.7
P1M1.0
P1M1.1
P1M1.2
P1M1.3
Px.y
Alternate
Function
XTAL1B
X
1
1
1
ADC0
ADC1
ADC2
ADC3
ADC4
ADC5
ADC6
ADC7
T2EX
CEX0
GPI0
GPI1
GPI2
GPI3
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
ECI
SS
T2
Notes
Automatic configuration
input-only
Automatic configuration
input-only
Automatic configuration
input-only
Automatic configuration
input-only
Automatic configuration
input-only
Automatic configuration
input-only
Automatic configuration
input-only
Automatic configuration
input-only
OSCB must be disabled or in
internal oscillator mode
(AT89LP51ID2)
REMAP = 0
I/O Mode
bidirectional (internal pull-up)
output
input
bidirectional (external pull-up)
3714A–MICRO–711