PIC16C72-04/SO Microchip Technology, PIC16C72-04/SO Datasheet - Page 53
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PIC16C72-04/SO
Manufacturer Part Number
PIC16C72-04/SO
Description
IC,MICROCONTROLLER,8-BIT,PIC CPU,CMOS,SOP,28PIN,PLASTIC
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Datasheets
1.PIC16F616T-ISL.pdf
(8 pages)
2.PIC16F818-ISO.pdf
(6 pages)
3.PIC16C72-04SO.pdf
(289 pages)
4.PIC16C72-04SO.pdf
(125 pages)
5.PIC16C72-04SO.pdf
(8 pages)
Specifications of PIC16C72-04/SO
Rohs Compliant
YES
Core Processor
PIC
Core Size
8-Bit
Speed
4MHz
Connectivity
I²C, SPI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Size
3.5KB (2K x 14)
Program Memory Type
OTP
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
4 V ~ 6 V
Data Converters
A/D 5x8b
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
28-SOIC (7.5mm Width)
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With
XLT28SO-1 - SOCKET TRANSITION 28SOIC 300MIL309-1024 - ADAPTER 28-SOIC TO 28-DIP309-1023 - ADAPTER 28-SOIC TO 28-DIP
Eeprom Size
-
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
9.0
The analog-to-digital (A/D) converter module has five
inputs for the PIC16C72/R72.
The A/D allows conversion of an analog input signal to
a corresponding 8-bit digital number (refer to Applica-
tion Note AN546 for use of A/D Converter). The output
of the sample and hold is the input into the converter,
which generates the result via successive approxima-
tion. The analog reference voltage is software select-
able to either the device’s positive supply voltage (V
or the voltage level on the RA3/AN3/V
The A/D converter has a unique feature of being able
to operate while the device is in SLEEP mode. To oper-
ate in sleep, the A/D conversion clock must be derived
from the A/D’s internal RC oscillator.
FIGURE 9-1:
1998 Microchip Technology Inc.
bit7
bit 7-6: ADCS1:ADCS0: A/D Conversion Clock Select bits
bit 5-3: CHS2:CHS0: Analog Channel Select bits
bit 2:
bit 1:
bit 0:
ADCS1 ADCS0
R/W-0
ANALOG-TO-DIGITAL
CONVERTER (A/D) MODULE
00 = F
01 = F
10 = F
11 = F
000 = channel 0, (RA0/AN0)
001 = channel 1, (RA1/AN1)
010 = channel 2, (RA2/AN2)
011 = channel 3, (RA3/AN3)
100 = channel 4, (RA5/AN4)
GO/DONE: A/D Conversion Status bit
If ADON = 1
1 = A/D conversion in progress (setting this bit starts the A/D conversion)
0 = A/D conversion not in progress (This bit is automatically cleared by hardware when the A/D conver-
sion is complete)
Unimplemented: Read as '0'
ADON: A/D On bit
1 = A/D converter module is operating
0 = A/D converter module is shutoff and consumes no operating current
R/W-0
ADCON0 REGISTER (ADDRESS 1Fh)
OSC
OSC
OSC
RC
(clock derived from an internal RC oscillator)
/2
/8
/32
R/W-0
CHS2
R/W-0
CHS1
REF
pin.
R/W-0
CHS0
Preliminary
DD
GO/DONE
)
R/W-0
Additional information on the A/D module is available in
the PICmicro™ Mid-Range MCU Reference Manual,
DS33023.
The A/D module has three registers. These registers
are:
A device reset forces all registers to their reset state.
This forces the A/D module to be turned off, and any
conversion is aborted.
The ADCON0 register, shown in Figure 9-1, controls
the operation of the A/D module. The ADCON1 regis-
ter, shown in Figure 9-2, configures the functions of the
port pins. The port pins can be configured as analog
inputs (RA3 can also be a voltage reference) or as dig-
ital I/O.
• A/D Result Register (ADRES)
• A/D Control Register 0 (ADCON0)
• A/D Control Register 1 (ADCON1)
U-0
—
PIC16C72 Series
ADON
R/W-0
bit0
R = Readable bit
W = Writable bit
U = Unimplemented bit,
- n = Value at POR reset
read as ‘0’
DS39016A-page 53