PIC12CE674-04E/P Microchip Technology, PIC12CE674-04E/P Datasheet - Page 424

• Manufacturer Part Number: PIC12CE674-04E/P
• Description: IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,DIP,8PIN,PLASTIC
• Manufacturer: Microchip Technology
• Series: PIC® 12Cr

Specifications of PIC12CE674-04E/P

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 4MHz
• Peripherals: POR, WDT
• Number Of I /o: 5
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: OTP
• Eeprom Size: 16 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 8-DIP (0.300", 7.62mm)
• Processor Series: PIC12C
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 128 B
• Maximum Clock Frequency: 4 MHz
• Number Of Programmable I/os: 5
• Number Of Timers: 8
• Maximum Operating Temperature: + 125 C
• Mounting Style: Through Hole
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: ICE2000
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Connectivity: -
• Lead Free Status / Rohs Status: Details

PICmicro MID-RANGE MCU FAMILY
23.1
Figure 23-1:
DS31023A-page 23-2
Converter
10-bit
Introduction
A/D
10-bit A/D Block Diagram
Reference
voltage
The analog-to-digital (A/D) converter module can have up to eight analog inputs for a device.
The analog input charges a sample and hold capacitor. The output of the sample and hold capac-
itor is the input into the converter. The converter then generates a digital result of this analog level
via successive approximation. This A/D conversion, of the analog input signal, results in a corre-
sponding 10-bit digital number.
The analog reference voltages (positive and negative supply) are software selectable to either
the device’s supply voltages (AV
pins.
The A/D converter has a unique feature of being able to operate while the device is in SLEEP
mode.
The A/D module has four registers. These registers are:
The ADCON0 register, shown in
ADCON1 register, shown in
can be configured as analog inputs (AN3 and AN2 can also be the voltage references) or as dig-
ital I/O.
• A/D Result High Register (ADRESH)
• A/D Result Low Register (ADRESL)
• A/D Control Register0 (ADCON0)
• A/D Control Register1 (ADCON1)
V
V
REF
REF
-
+
(Input voltage)
V
AIN
PCFG0
Preliminary
Figure
DD
AV
Figure
, AVss) or the voltage level on the AN3/V
23-2, configures the functions of the port pins. The port pins
DD
AV
23-1, controls the operation of the A/D module. The
SS
CHS2:CHS0
111
110
101
100
011
010
001
000
1997 Microchip Technology Inc.
REF
AN1
AN7
AN6
AN5
AN4
AN3
AN2
AN0
+ and AN2/V
REF
-