AT89LP51ED2-20MU Atmel, AT89LP51ED2-20MU Datasheet - Page 62

• 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

62
AT89LP51RD2/ED2/ID2 Preliminary
Table 9-2.
Figure 9-1.
PCA IT
KBD IT
MODF
EXF2
TWIF
ADIF
INT0
INT1
SPIF
CFB
TXE
CFA
TF0
TF1
TF2
RI
TI
IPH.x
Priority Level Bit Values
Interrupt Control Subsystem
0
0
1
1
IT0
IT1
Individual Enable
IE0
IE1
ECMP
EKBD
EADC
ETWI
ESPI
EX0
ET0
EX1
ET1
ET2
EC
ES
IEN1, IEN0
IPL.x
IPHx, IPLx
EA
EA
EA
EA
EA
EA
EA
EA
EA
EA
EA
EA
0
1
0
1
Global Disable
3
0
3
0
3
0
3
0
3
0
3
0
3
0
3
0
3
0
3
0
3
0
3
0
Interrupt Priority Level
High Priority
Interrupt
3 (Highest)
0 (Lowest)
Low Priority
Interrupt
1
2
Interrupt Polling
Sequence,
Decreasing from
High to Low
Priority
3714A–MICRO–7/11