PIC12F1822-E/P Microchip Technology, PIC12F1822-E/P Datasheet - Page 139

• Manufacturer Part Number: PIC12F1822-E/P
• Description: 3.5 KB Flash, 128 Bytes RAM, 32 MHz Int. Osc, 6 I/0, Enhanced Mid Range Core 8 P
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 12Fr

Specifications of PIC12F1822-E/P

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 32MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 6
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 8-DIP (0.300", 7.62mm)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

16.0
The
conversion of an analog input signal to a 10-bit binary
representation of that signal. This device uses analog
inputs, which are multiplexed into a single sample and
hold circuit. The output of the sample and hold is
connected to the input of the converter. The converter
generates a 10-bit binary result via successive
approximation and stores the conversion result into the
ADC result registers (ADRESH:ADRESL register pair).
Figure 16-1
The ADC voltage reference is software selectable to be
either internally generated or externally supplied.
FIGURE 16-1:
 2010 Microchip Technology Inc.
Analog-to-Digital
ANALOG-TO-DIGITAL
CONVERTER (ADC) MODULE
Temp Indicator
Note 1: When ADON = 0, all multiplexer inputs are disconnected.
FVR Buffer1
shows the block diagram of the ADC.
2: Not available on PIC12F/LF1822.
AN4
AN5
AN6
AN7
DAC
AN0
AN1
AN2
AN3
(2)
(2)
(2)
(2)
ADC BLOCK DIAGRAM
Converter
CHS<4:0>
V
DD
PIC12F/LF1822/PIC16F/LF1823
V
(ADC)
REF
00000
00001
00010
00011
00100
00101
00110
00111
11110
11111
11101
+
ADPREF = 11
ADPREF = 00
ADPREF = 10
allows
Preliminary
GO/DONE
ADON
The ADC can generate an interrupt upon completion of
a conversion. This interrupt can be used to wake-up the
device from Sleep.
(1)
V
SS
ADC
ADFM
ADRESH ADRESL
0 = Left Justify
1 = Right Justify
DS41413B-page 139
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