PIC18F4680-H/ML Microchip Technology, PIC18F4680-H/ML Datasheet - Page 252

• Manufacturer Part Number: PIC18F4680-H/ML
• Description: IC MCU 8BIT 64KB FLASH 44QFN
• Manufacturer: Microchip Technology
• Series: PIC® 18Fr

Specifications of PIC18F4680-H/ML

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, HLVD, POR, PWM, WDT
• Number Of I /o: 36
• Program Memory Size: 64KB (32K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 1K x 8
• Ram Size: 3.25K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 150°C
• Package / Case: 44-VQFN Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

PIC18F2585/2680/4585/4680
The analog reference voltage is software selectable to
either the device’s positive and negative supply voltage
(AV
RA3/AN3/V
The A/D converter has a 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.
The output of the sample and hold is the input into the
converter, which generates the result via successive
approximation.
FIGURE 19-1:
DS39625C-page 250
DD
Note 1:
and AV
REF
2:
+ and RA2/AN2/V
Converter
SS
10-Bit
Channels AN5 through AN7 are not available on PIC18F2X8X devices.
I/O pins have diode protection to V
), or the voltage level on the
A/D
Reference
Voltage
A/D BLOCK DIAGRAM
REF
-/CV
V
V
REF
REF
REF
+
-
pins.
(Input Voltage)
VCFG1:VCFG0
V
Preliminary
AIN
DD
and V
X
X
1
0
0
1
X
X
AV
SS
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
1010
1001
1000
0111
0110
0101
0100
0011
0010
0001
0000
© 2007 Microchip Technology Inc.
AN10
AN9
AN8
AN7
AN6
AN5
AN4
AN3
AN2
AN1
AN0
(1)
(1)
(1)