AT89C51CC02CA-RATUM Atmel, AT89C51CC02CA-RATUM Datasheet - Page 129
AT89C51CC02CA-RATUM
Manufacturer Part Number
AT89C51CC02CA-RATUM
Description
IC 8051 MCU FLASH 16K 32-VQFP
Manufacturer
Atmel
Series
AT89C CANr
Datasheet
1.T89C51CC02CA-TDSIM.pdf
(159 pages)
Specifications of AT89C51CC02CA-RATUM
Core Processor
8051
Core Size
8-Bit
Speed
40MHz
Connectivity
CAN, UART/USART
Peripherals
POR, PWM, WDT
Number Of I /o
20
Program Memory Size
16KB (16K x 8)
Program Memory Type
FLASH
Eeprom Size
2K x 8
Ram Size
512 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
32-TQFP, 32-VQFP
Processor Series
AT89x
Core
8051
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
UART
Maximum Clock Frequency
40 MHz
Number Of Programmable I/os
20
Number Of Timers
1
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
Development Tools By Supplier
CANADAPT28
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 8 Channel
For Use With
AT89OCD-01 - USB EMULATOR FOR AT8XC51 MCU
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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IT ADC Management
Routine Examples
4126L–CAN–01/08
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 55. ADC interrupt structure
Note:
1. Configure P1.2 and P1.3 in ADC channels
// configure channel P1.2 and P1.3 for ADC
// Enable the ADC
2. Start a standard conversion
// 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
3. Start a precision conversion (need interrupt ADC)
// The variable ’channel’ contains the channel to convert
// Enable ADC
// clear the field SCH[2:0]
// Select the channel
// Start conversion in precision mode
ADCF = 0Ch
ADCON = 20h
ADCON &= F8h
ADCON |= channel
ADCON |= 08h
while((ADCON & 01h)!= 01h)
ADCON &= EFh
value_converted = (ADDH << 2)+(ADDL)
EADC = 1
ADCON &= F8h
ADCON |= channel
ADCON |= 48h
To enable the ADC interrupt: EA = 1
ADEOC
ADCON.2
EADC
IEN1.1
AT/T89C51CC02
ADCI
129
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