Specifications

5
3706C–MICRO–2/11
AT89LP3240/6440
17 23 20 17 GND I Ground
18 24 21 18 P2.0
I/O
I/O
O
P2.0: User-configurable I/O Port 2 bit 0.
CCA: Timer 2 Channel A Compare Output or Capture Input.
A8: External memory interface Address bit 8.
19 25 22 19 P2.1
I/O
I/O
O
P2.1: User-configurable I/O Port 2 bit 1.
CCB: Timer 2 Channel B Compare Output or Capture Input.
A9: External memory interface Address bit 9.
20 26 23 20 P2.1
I/O
I/O
O
O
P2.2: User-configurable I/O Port 2
bit 2.
CCC: Timer 2 Channel C Compare Output or Capture Input.
A10: External memory interface Address bit 10.
DA-: DAC negative differential output.
21 27 24 21 P2.3
I/O
I/O
O
O
P2.3: User-configurable I/O Port 2 bit 3.
CCD: Timer 2 Channel D Compare Output or Capture Input.
A11: External memory interface Address bit 11.
D+-: DAC positive differential output.
22 28 25 22 P2.4
I/O
I
O
P2.4: User-configur
able I/O Port 2 bit 5.
AIN0: Analog Comparator Input 0.
A12: External memory interface Address bit 12.
23 29 26 23 P2.5
I/O
I
O
P2.5: User-configurable I/O Port 2 bit 5.
AIN1: Analog Comparator Input 1.
A13: External memory interface Address bit 13.
24 30 27 24 P2.6
I/O
I
O
P2.6: User-configurable I/O Port 2 bit 6.
AIN2: Analog Comparator Input 2.
A14: External memory interface Address bit 14.
25 31 28 25 P2.7
I/O
I
O
P2.7: Us
er-configurable I/O Port 2 bit 7.
AIN3: Analog Comparator Input 3.
A15: External memory interface Address bit 15.
26 32 29 26 P4.5 I/O P4.5: User-configurable I/O Port 4 bit 5.
27 33 30 27 P4.4
I/O
O
P4.4: User-configurable I/O Port 4 bit 4.
ALE: External memory interface Address Latch Enable.
28 34 28 GND I Ground
29 35 31 29 P4.3
I/O
I/O
P4.3: User-configurable I/O Port 4 bit 3.
DDA: Serial Data input/output for On-Chip Debug Interf
ace when OCD is enabled and
the Crystal oscillator is selected as the clock source.
30 36 32 30 P0.7
I/O
O
I
P0.7: User-configurable I/O Port 0 bit 7.
AD7: External memory interface Address/Data bit 7.
ADC7: ADC analog input 7.
31 37 33 31 P0.6
I/O
O
I
P0.6: User-configurable I/O Port 0 bit 6.
AD6: External memory interface Address/Data bit 6.
ADC6: ADC analog input 6.
32 38
34 32 P0.5
I/O
O
I
P0.5: User-configurable I/O Port 0 bit 5.
AD5: External memory interface Address/Data bit 5.
ADC5: ADC analog input 5.
33 39 35 33 P0.4
I/O
O
I
P0.4: User-configurable I/O Port 0 bit 4.
AD4: External memory interface Address/Data bit 4.
ADC4: ADC analog input 4.
34 40 36 34 P0.3
I/O
O
I
P0.3: User-configurable I/O Port 0 bit 3.
AD3: External memory interface Address/Data bit 3.
ADC3
: ADC analog input 3.
Table 1-1. AT89LP3240/6440 Pin Description
Pin Number
Symbol Type DescriptionTQFP PLCC PDIP VQFN