AT89C51CC03UA-RLTUM Atmel, AT89C51CC03UA-RLTUM Datasheet - Page 162

• Manufacturer Part Number: AT89C51CC03UA-RLTUM
• Description: IC 8051 MCU 64K FLASH 44-VQFP
• Manufacturer: Atmel
• Series: AT89C CANr

Specifications of AT89C51CC03UA-RLTUM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: CAN, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• Package: 44VQFP
• Device Core: 8051
• Family Name: 89C
• Maximum Speed: 60 MHz
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 36
• Interface Type: CAN/SPI/UART
• On-chip Adc: 8-chx10-bit
• Number Of Timers: 3
• Processor Series: AT89x
• Core: 8051
• Data Ram Size: 2304 B
• Maximum Clock Frequency: 60 MHz
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: - 40 C
• Cpu Family: AT89
• Device Core Size: 8b
• Frequency (max): 60MHz
• Total Internal Ram Size: 2.25KB
• # I/os (max): 36
• Number Of Timers - General Purpose: 3
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 44
• Package Type: VQFP
• For Use With: AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Registers
162
AT89C51CC03
Table 110. IEN0 Register
IEN0 (S:A8h)
Interrupt Enable Register
Reset Value = 0000 0000b
bit addressable
Number
EA
Bit
7
7
6
5
4
3
2
1
0
Mnemonic Description
EX1
EX0
EC
ET2
ET1
ET0
Bit
EA
EC
ES
6
Enable All Interrupt bit
Clear to disable all interrupts.
Set to enable all interrupts.
If EA=1, each interrupt source is individually enabled or disabled by setting or
clearing its interrupt enable bit.
PCA Interrupt Enable
Clear to disable the PCA interrupt.
Set to enable the PCA interrupt.
Timer 2 Overflow Interrupt Enable bit
Clear to disable Timer 2 overflow interrupt.
Set to enable Timer 2 overflow interrupt.
Serial Port Enable bit
Clear to disable serial port interrupt.
Set to enable serial port interrupt.
Timer 1 Overflow Interrupt Enable bit
Clear to disable timer 1 overflow interrupt.
Set to enable timer 1 overflow interrupt.
External Interrupt 1 Enable bit
Clear to disable external interrupt 1.
Set to enable external interrupt 1.
Timer 0 Overflow Interrupt Enable bit
Clear to disable timer 0 overflow interrupt.
Set to enable timer 0 overflow interrupt.
External Interrupt 0 Enable bit
Clear to disable external interrupt 0.
Set to enable external interrupt 0.
ET2
5
ES
4
ET1
3
EX1
2
4182O–CAN–09/08
ET0
1
EX0
0