AT89C51CC03UA-RDTUM Atmel, AT89C51CC03UA-RDTUM Datasheet - Page 155
![IC 8051 MCU FLASH 64K 64-VQFP](/photos/6/81/68127/313-64-vqfp_sml.jpg)
AT89C51CC03UA-RDTUM
Manufacturer Part Number
AT89C51CC03UA-RDTUM
Description
IC 8051 MCU FLASH 64K 64-VQFP
Manufacturer
Atmel
Series
AT89C CANr
Datasheet
1.AT89C51CC03C-S3RIM.pdf
(198 pages)
Specifications of AT89C51CC03UA-RDTUM
Core Processor
8051
Core Size
8-Bit
Speed
40MHz
Connectivity
CAN, SPI, 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
64-TQFP, 64-VQFP
Processor Series
AT89x
Core
8051
Data Bus Width
8 bit
Data Ram Size
2304 B
Interface Type
UART, SPI
Maximum Clock Frequency
60 MHz
Number Of Programmable I/os
36
Number Of Timers
2
Operating Supply Voltage
3 V to 5.5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
Package
64VQFP
Device Core
8051
Family Name
AT89
Maximum Speed
60 MHz
For Use With
AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Figure 75. A/D Converter Clock
ADC Standby Mode
IT ADC Management
Routines examples
4182O–CAN–09/08
CPU Core Clock Symbol
CLOCK
CPU
When the ADC is not used, it is possible to set it in standby mode by clearing bit ADEN
in ADCON register. In this mode its power dissipation is about 1 µW.
An interrupt end-of-conversion will occurs when the bit ADEOC is activated and the bit
EADC is set. For re-arming the interrupt the bit ADEOC must be cleared by software.
Figure 76. ADC Interrupt Structure
1. Configure P1.2 and P1.3 in ADC channels
2. Start a standard conversion
3. Start a precision conversion (need interrupt ADC)
// configure channel P1.2 and P1.3 for ADC
// Enable the ADC
// The variable "channel" contains the channel to convert
// The variable "value_converted" is an unsigned int
// Clear the field SCH[2:0]
// Select channel
// Start conversion in standard mode
// Wait flag End of conversion
// Clear the End of conversion flag
// read the value
// The variable "channel" contains the channel to convert
// Enable ADC
ADCF = 0Ch
ADCON = 20h
ADCON and = F8h
ADCON | = channel
ADCON | = 08h
while((ADCON and 01h)! = 01h)
ADCON and = EFh
value_converted = (ADDH << 2)+(ADDL)
÷
2
ADEOC
ADCON.2
Prescaler ADCLK
EADC
IEN1.1
ADC Clock
AT89C51CC03
ADCI
Converter
A/D
155
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