PIC16LC924-04/SP Microchip Technology, PIC16LC924-04/SP Datasheet - Page 79
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PIC16LC924-04/SP
Manufacturer Part Number
PIC16LC924-04/SP
Description
IC MCU 64 LD LOW 64-SDIP
Manufacturer
Microchip Technology
Series
PIC® 16Cr
Specifications of PIC16LC924-04/SP
Core Processor
PIC
Core Size
8-Bit
Speed
4MHz
Connectivity
I²C, SPI
Peripherals
LCD, POR, PWM, WDT
Number Of I /o
25
Program Memory Size
7KB (4K x 14)
Program Memory Type
OTP
Ram Size
176 x 8
Voltage - Supply (vcc/vdd)
2.5 V ~ 6 V
Data Converters
A/D 5x8b
Oscillator Type
External
Operating Temperature
0°C ~ 70°C
Package / Case
64-SDIP (0.750", 19.05mm)
Lead Free Status / RoHS Status
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Eeprom Size
-
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12.0
This section applies to the PIC16C924 only.
The analog-to-digital (A/D) converter module has five
inputs.
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 A
on the RA3/AN3/V
unique feature of being able to operate while the device
is in SLEEP mode.
To operate in sleep, the A/D conversion clock must be
derived from the A/D’s internal RC oscillator.
FIGURE 12-1: ADCON0 REGISTER (ADDRESS 1Fh)
1997 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 conversion
is complete)
Reserved: Always maintain this bit clear
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
OSC
OSC
OSC
RC
REF
(clock derived from an RC oscillation)
/2
/8
/32
R/W-0
CHS2
pin. The A/D converter has a
VDD
pin or the voltage level
R/W-0
CHS1
R/W-0
CHS0
GO/DONE
R/W-0
The A/D module has three registers. These registers
are:
The ADCON0 register, shown in Figure 12-1, controls
the operation of the A/D module. The ADCON1 regis-
ter, shown in Figure 12-2, configures the functions of
the port pins. The port pins can be configured as ana-
log inputs (RA3 can also be a voltage reference) or as
digital I/O.
R/W-0
• A/D Result Register (ADRES)
• A/D Control Register 0 (ADCON0)
• A/D Control Register 1 (ADCON1)
—
ADON
R/W-0
bit0
PIC16C9XX
R = Readable bit
W = Writable bit
U = Unimplemented bit,
- n = Value at POR reset
read as ‘0’
DS30444E - page 79
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