AT89C51IC2-SLRIL Atmel, AT89C51IC2-SLRIL Datasheet - Page 58
![IC MCU FLASH 8051 32K 3V 44-PLCC](/photos/6/70/67043/453-44-plcc_sml.jpg)
AT89C51IC2-SLRIL
Manufacturer Part Number
AT89C51IC2-SLRIL
Description
IC MCU FLASH 8051 32K 3V 44-PLCC
Manufacturer
Atmel
Series
89Cr
Datasheet
1.AT89C51IC2-SLRIM.pdf
(147 pages)
Specifications of AT89C51IC2-SLRIL
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-PLCC
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Eeprom Size
-
Data Converters
-
Other names
AT89C51IC2SLRILTR
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- Current page: 58 of 147
- Download datasheet (2Mb)
Interrupt System
Figure 22. Interrupt Control System
58
AT89C51IC2
EXF2
KBD IT
TWI IT
SPI IT
INT0
INT1
PCA IT
TF0
TF1
TF2
RI
TI
Individual Enable
The AT89C51IC2 has a total of 10 interrupt vectors: two external interrupts (INT0 and
INT1), three timer interrupts (timers 0, 1 and 2), the serial port interrupt, SPI interrupt,
Two Wire Interface (I2C) interrupt, Keyboard interrupt and the PCA global interrupt.
These interrupts are shown in Figure 22.
Each of the interrupt sources can be individually enabled or disabled by setting or clear-
ing a bit in the Interrupt Enable register (Table 51 and Table 49). This register also
contains a global disable bit, which must be cleared to disable all interrupts at once.
Each interrupt source can also be individually programmed to one out of four priority lev-
els by setting or clearing a bit in the Interrupt Priority register (Table 52) and in the
Interrupt Priority High register (Table 50 and Table 51) shows the bit values and priority
levels associated with each combination.
IE0
IE1
IPH, IPL
Global Disable
3
0
3
0
3
0
3
0
3
0
3
0
3
0
3
0
3
0
3
0
High priority
interrupt
Interrupt
polling
sequence, decreasing from
high to low priority
Low priority
interrupt
4301D–8051–02/08
Related parts for AT89C51IC2-SLRIL
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
![AT89C51IC2](/images/manufacturer_photos/0/0/79/atmel_corporation_tmb.jpg)
Part Number:
Description:
Manufacturer:
Atmel Corporation
Datasheet:
![AT89C51IC2-RLRUL](/photos/6/92/69202/313-44-vqfp_tmb.jpg)
Part Number:
Description:
IC 8051 MCU 32K FLASH 44-VQFP
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-RLRUM](/photos/6/92/69202/313-44-vqfp_tmb.jpg)
Part Number:
Description:
IC 8051 MCU 32K FLASH 44-VQFP
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-SLRUM](/photos/6/70/67043/453-44-plcc_tmb.jpg)
Part Number:
Description:
IC 8051 MCU 32K FLASH 44-PLCC
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-SLRUL](/photos/6/70/67043/453-44-plcc_tmb.jpg)
Part Number:
Description:
IC 8051 MCU 32K FLASH 44-PLCC
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-RLTIM](/images/no-image3.png)
Part Number:
Description:
8-bit Flash Microcontroller with 2-wire Interface
Manufacturer:
ATMEL [ATMEL Corporation]
Datasheet:
![AT89C51IC2-SLRIM](/photos/6/70/67043/453-44-plcc_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 8051 32K 5V 44-PLCC
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-RLTIL](/photos/6/92/69202/313-44-vqfp_tmb.jpg)
Part Number:
Description:
IC 8051 MCU FLASH 32K 44VQFP
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-RLRIM](/photos/6/92/69202/313-44-vqfp_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 8051 32K 5V 44-VQFP
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-RLTUM](/photos/6/92/69202/313-44-vqfp_tmb.jpg)
Part Number:
Description:
IC 8051 MCU FLASH 32K 44VQFP
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-RLTUL](/photos/6/92/69202/313-44-vqfp_tmb.jpg)
Part Number:
Description:
IC 8051 MCU FLASH 32K 44VQFP
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-SLSUL](/photos/6/70/67043/453-44-plcc_tmb.jpg)
Part Number:
Description:
IC 8051 MCU FLASH 32K 44PLCC
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-RLRIL](/photos/6/92/69202/313-44-vqfp_tmb.jpg)
Part Number:
Description:
IC MCU FLASH 8051 32K 3V 44-VQFP
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-SLSUM](/photos/6/70/67043/453-44-plcc_tmb.jpg)
Part Number:
Description:
IC 8051 MCU FLASH 32K 44PLCC
Manufacturer:
Atmel
Datasheet:
![AT89C51IC2-SLSIL](/photos/6/70/67043/453-44-plcc_tmb.jpg)
Part Number:
Description:
IC 8051 MCU FLASH 32K 44PLCC
Manufacturer:
Atmel
Datasheet: