PIC18F2320-I/SO Microchip Technology Inc., PIC18F2320-I/SO Datasheet - Page 216

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PIC18F2320-I/SO

Manufacturer Part Number
PIC18F2320-I/SO
Description
Microcontroller; 8 KB Flash; 512 RAM; 256 EEPROM; 25 I/O; 28-Pin-SOIC
Manufacturer
Microchip Technology Inc.
Datasheet

Specifications of PIC18F2320-I/SO

A/d Inputs
10-Channel, 10-Bit
Comparators
2
Cpu Speed
10 MIPS
Eeprom Memory
256 Bytes
Input Output
25
Interface
I2C/SPI/USART
Memory Type
Flash
Number Of Bits
8
Package Type
28-pin SOIC
Programmable Memory
8K Bytes
Ram Size
512 Bytes
Speed
20 MHz
Timers
1-8-bit, 3-16-bit
Voltage, Range
2-5.5 V
Lead Free Status / Rohs Status
RoHS Compliant part Electrostatic Device
PIC18F2220/2320/4220/4320
The analog reference voltage is software selectable to
either the device’s positive and negative supply voltage
(AV
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.
The output of the sample and hold is the input into the
converter which generates the result via successive
approximation.
FIGURE 19-1:
DS39599C-page 214
REF
DD
+ and RA2/AN2/V
and AV
Note 1: Channels AN5 through AN7 are not available on PIC18F2X20 devices.
2: I/O pins have diode protection to V
SS
Converter
), or the voltage level on the RA3/AN3/
10-bit
A/D
Reference
Voltage
A/D BLOCK DIAGRAM
REF
-/CV
REF
pins.
V
V
REFH
REFL
(Input Voltage)
VCFG1:VCFG0
V
AIN
DD
and V
X
X
1
0
0
1
X
X
SS
AV
.
A device Reset forces all registers to their Reset state.
This forces the A/D module to be turned off and any
conversion in progress is aborted.
Each port pin associated with the A/D converter can be
configured as an analog input or as a digital I/O. The
ADRESH and ADRESL registers contain the result of
the A/D conversion. When the A/D conversion is com-
plete, the result is loaded into the ADRESH/ADRESL
registers, the GO/DONE bit (ADCON0 register) is
cleared and A/D Interrupt Flag bit, ADIF, is set. The block
diagram of the A/D module is shown in Figure 19-1.
DD
AV
SS
CHS3:CHS0
1100
1011
1010
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
 2003 Microchip Technology Inc.
AN12
AN11
AN10
AN9
AN8
AN7
AN6
AN5
AN4
AN3/V
AN2/V
AN1
AN0
(1)
(1)
(1)
(2)
REF
REF
+
-

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