AT89C51IC2-RLTIL Atmel, AT89C51IC2-RLTIL Datasheet - Page 66

• Manufacturer Part Number: AT89C51IC2-RLTIL
• Description: IC 8051 MCU FLASH 32K 44VQFP
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C51IC2-RLTIL

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 34
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 1.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

Interrupt Sources and
Vector Addresses
66
AT89C51IC2
Table 54. Interrupt Sources and Vector Addresses
Number
10
0
1
2
3
4
5
6
7
8
9
Polling Priority
10
0
1
2
3
4
6
7
5
8
9
Interrupt Source
Keyboard
Timer 0
Timer 1
Timer 2
UART
Reset
INT0
INT1
PCA
TWI
SPI
CF + CCFn (n = 0-4)
TF2+EXF2
Interrupt
Request
KBDIT
TWIIT
RI+TI
SPIIT
TF0
IE0
IE1
IF1
4301D–8051–02/08
Address
Vector
000Bh
001Bh
002Bh
003Bh
004Bh
0000h
0003h
0013h
0023h
0033h
0043h