PIC16F785-I/P Microchip Technology Inc., PIC16F785-I/P Datasheet - Page 90

• Manufacturer Part Number: PIC16F785-I/P
• Description: MCU, 8-Bit, 2KW Flash, 128 RAM, 18 I/O, DIP-20
• Manufacturer: Microchip Technology Inc.

Specifications of PIC16F785-I/P

• A/d Inputs: 12-Channel, 10-Bit
• Comparators: 2
• Cpu Speed: 5 MIPS
• Eeprom Memory: 256 Bytes
• Input Output: 17
• Memory Type: Flash
• Number Of Bits: 8
• Package Type: 20-pin PDIP
• Programmable Memory: 3.5K Bytes
• Ram Size: 128 Bytes
• Speed: 20 MHz
• Timers: 2-8-bit, 1-16-bit
• Voltage, Range: 2-5.5 V
• Lead Free Status / Rohs Status: RoHS Compliant part Electrostatic Device

PIC16F785/HV785
12.3
The A/D Converter module can operate during Sleep.
This requires the A/D clock source to be set to the F
option. When the RC clock source is selected, the A/D
waits one instruction before starting the conversion.
This allows the SLEEP instruction to be executed, thus
eliminating much of the switching noise from the con-
version. When the conversion is complete, the GO/
DONE bit is cleared and the result is loaded into the
ADRESH:ADRESL registers. If the A/D interrupt is
enabled (ADIE and PEIE bits set), the device awakens
from Sleep. If the GIE bit (INTCON<7>) is set, the pro-
gram counter is set to the interrupt vector (0004h). If
GIE is clear, the next instruction is executed. If the A/D
interrupt is not enabled, the A/D module is turned off,
although the ADON bit remains set.
FIGURE 12-5:
DS41249D-page 88
A/D Operation During Sleep
A/D TRANSFER FUNCTION
0V
3FDh
3FCh
3FEh
3FBh
3FFh
004h
003h
002h
001h
000h
1 LSb ideal
Zero-Scale
Transition
Full-Scale Range
Preliminary
RC
When the A/D clock source is something other than
RC, a SLEEP instruction causes the present conversion
to be aborted and the A/D module is turned off. The
ADON bit remains set.
V
REF
Full-Scale
Transition
1 LSb ideal
Analog Input Voltage
© 2006 Microchip Technology Inc.