PIC16F785-E/SS Microchip Technology, PIC16F785-E/SS Datasheet - Page 75

• Manufacturer Part Number: PIC16F785-E/SS
• Description: 20 PIN, 3.5 KB STD FLASH, 128 RAM, 18 I/O PB FREE,
• Manufacturer: Microchip Technology
• Series: PIC® 16Fr

Specifications of PIC16F785-E/SS

• Rohs Compliant: YES
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 20MHz
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 17
• Program Memory Size: 3.5KB (2K x 14)
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 14x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 20-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: XLT20SS1-1 - SOCKET TRANSITION 20DIP 20SSOPAC162060 - HEADER INTRFC MPLAB ICD2 20PIN
• Connectivity: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

10.2
The VR Reference module generates a 1.2V nominal
output voltage for use by the ADC and comparators.
The output voltage can also be brought out to the V
pin for user applications. This module uses a bandgap
as a reference. See Table 19-9 for detailed specifica-
tions. Register 10-2 shows the control register for the
VR module.
REGISTER 10-2:
© 2008 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7-6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
Note 1: Buffer amplifier common mode limitations require V
U-0
—
2: VREN is fixed high for PIC16HV785 device.
VR Reference Module
Unimplemented: Read as ‘0’
BGST: Band Gap Reference Voltage Stable Flag bit
1 = Reference is stable
0 = Reference is not stable
VRBB: Voltage Reference Buffer Bypass bit
1 = V
0 = V
VREN: Voltage Reference Enable bit (VR = 1.2V nominal)
1 = VR reference is enabled
0 = VR reference is disabled and does not consume any current
VROE: Voltage Reference Output Enable bit
If CVROE = 0:
1 = V
0 = Disabled, 1.2 volt VR analog reference is used internally only
If CVROE = 1:
CVROE: Comparator Voltage Reference Output Enable bit (see Figure 10-2)
1 = V
0 = V
Unimplemented: Read as ‘0’
VROE has no effect.
U-0
REF
REF
REF
REF
REF
—
REFCON: VOLTAGE REFERENCE CONTROL REGISTER
output is not buffered. Power is removed from buffer amplifier.
output is buffered
output on RA1/AN1/C12IN0-/V
output on RA1/AN1/C12IN0-/V
output on RA1/AN1/C12IN0-/V
W = Writable bit
‘1’ = Bit is set
BGST
R-0
(1)
R/W-0
VRBB
REF
REF
REF
REF
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
/ICSPCLK pin is 1.2 volt VR analog reference
/ICSPCLK pin is CV
/ICSPCLK pin is controlled by VROE
R/W-0
VREN
REF
≤ (V
PIC16F785/HV785
DD
(2)
- 1.4)V for buffered output.
R/W-0
VROE
REF
voltage
x = Bit is unknown
CVROE
R/W-0
DS41249E-page 73
U-0
—
bit 0