AT89LP6440 Atmel Corporation, AT89LP6440 Datasheet - Page 50

• Manufacturer Part Number: AT89LP6440
• Manufacturer: Atmel Corporation

Specifications of AT89LP6440

• Flash (kbytes): 64 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-1C
• Max I/o Pins: 38
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 153.8
• Sram (kbytes): 4.25
• Eeprom (bytes): 8192
• Self Program Memory: IAP
• Operating Voltage (vcc): 2.4 to 3.6
• Timers: 3
• Isp: SPI/OCD
• Watchdog: Yes

50
AT89LP3240/6440
Table 10-6.
Port Pin
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6
P3.7
P4.2
P4.6
P4.7
Port Pin Alternate Functions
PxM0.y
P1M0.2
P1M0.3
P1M0.4
P1M0.5
P1M0.6
P1M0.7
P2M0.0
P2M0.1
P2M0.2
P2M0.3
P2M0.4
P2M0.5
P2M0.6
P2M0.7
P3M0.0
P3M0.1
P3M0.2
P3M0.3
P3M0.4
P3M0.5
P3M0.6
P3M0.7
P3M0.5
Configuration Bits
not configurable
not configurable
PxM1.y
P1M1.2
P1M1.3
P1M1.4
P1M1.5
P1M1.6
P1M1.7
P2M1.0
P2M1.1
P2M1.2
P2M1.3
P2M1.4
P2M1.5
P2M1.6
P2M1.7
P3M1.0
P3M1.1
P3M1.2
P3M1.3
P3M1.4
P3M1.5
P3M1.6
P3M1.7
P3M1.5
Alternate
Function
CMPA
CMPB
MOSI
MISO
GPI2
GPI3
GPI4
GPI5
GPI6
GPI7
CCA
CCB
CCC
CCD
AIN0
AIN1
AIN2
AIN3
RXD
INT0
INT1
SDA
SCK
TXD
RST
SCL
DA+
DA-
WR
RD
SS
T0
T1
Notes
open-drain
open-drain
input-only
input-only
input-only
input-only
input-only
input-only
RST must be disabled to use P4.2
Pin is tied to comparator output
Pin is tied to comparator output
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