PIC12F510-I/SN Microchip Technology, PIC12F510-I/SN Datasheet - Page 51

• Manufacturer Part Number: PIC12F510-I/SN
• Description: IC PIC MCU FLASH 1KX14 8SOIC
• Manufacturer: Microchip Technology
• Series: PIC® 12Fr

Specifications of PIC12F510-I/SN

• Program Memory Type: FLASH
• Program Memory Size: 1.5KB (1K x 12)
• Package / Case: 8-SOIC (3.9mm Width)
• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 8MHz
• Peripherals: POR, WDT
• Number Of I /o: 5
• Ram Size: 38 x 8
• Voltage - Supply (vcc/vdd): 2 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Processor Series: PIC12F
• Core: PIC
• Data Bus Width: 8 bit
• Data Ram Size: 38 B
• Maximum Clock Frequency: 8 MHz
• Number Of Programmable I/os: 5
• Number Of Timers: 1
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: 52715-96, 52716-328, 52717-734
• Development Tools By Supplier: PG164130, DV164035, DV244005, DV164005, PG164120, DV164101, DV164120, DM163029
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 8 bit, 3 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With: AC162070 - HEADER INTRFC MPLAB ICD2 8/14P
• Eeprom Size: -
• Connectivity: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

8.0
The Comparator Voltage Reference module also
allows the selection of an internally generated voltage
reference for one of the C2 comparator inputs. The
VRCON register (Register 8-1) controls the Voltage
Reference module shown in Figure 8-1.
8.1
The voltage reference can output 32 voltage levels; 16
in a high range and 16 in a low range.
Equation 8-1 determines the output voltages:
EQUATION 8-1:
REGISTER 8-1:
© 2007 Microchip Technology Inc.
bit 7
Legend:
R = Readable bit
-n = Value at POR
bit 7
bit 6
bit 5
bit 4
bit 3-0
VRR = 0 (high range):
VRR = 1 (low range): CV
Note 1: When this bit is set, the TRIS for the CV
R/W-0
VREN
CV
2: CV
COMPARATOR VOLTAGE
REFERENCE MODULE
(PIC16F506 ONLY)
Configuring The Voltage
Reference
REF
CV
= (V
REF
REF
VREN: CV
1 = CV
0 = CV
VROE: CV
1 = CV
0 = CV
VRR: CV
1 = Low range
0 = High range
Unimplemented: Read as ‘0’
VR<3:0> CV
When V
When V
DD
VROE
pin.
controls for ratio metric reference applies to Comparator 2 on the PIC12F506 only.
R/W-0
/4) + (VR<3:0> x V
VRCON: VOLTAGE REFERENCE CONTROL REGISTER (PIC16F506 ONLY)
REF
REF
REF
REF
RR
RR
REF
REF
REF
REF
is powered on
is powered down, no current is drawn
output is enabled
output is disabled
= 1: CV
= 0: CV
= (VR<3:0>/24) x V
REF
Range Selection bit
W = Writable bit
‘1’ = Bit is set
Enable bit
Output Enable bit
Value Selection bit
R/W-1
VRR
REF
REF
= (VR<3:0>/24)*V
= V
DD
/32)
DD
/4+(VR<3:0>/32)*V
DD
(1)
U-0
Preliminary
—
REF
DD
pin is overridden and the analog voltage is placed on the
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
R/W-1
8.2
The full range of V
construction of the module. The transistors on the top
and bottom of the resistor ladder network (Figure 8-1)
keep CV
tion is when the module is disabled by clearing the
VREN bit (VRCON<7>). When disabled, the reference
voltage is V
(VRCON<5>) bit is set. This allows the comparator to
detect a zero-crossing and not consume the CV
module current.
The voltage reference is V
the CV
tested absolute accuracy of the comparator voltage ref-
erence can be found in Section 13.2 “DC Character-
istics: PIC12F510/16F506 (Extended)”.
VR3
DD
PIC12F510/16F506
REF
REF
Voltage Reference Accuracy/Error
output changes with fluctuations in V
SS
from approaching V
R/W-1
when VR<3:0> is ‘0000’ and the VRR
VR2
SS
to V
DD
x = Bit is unknown
DD
cannot be realized due to
R/W-1
VR1
derived and, therefore,
SS
or V
DS41268C-page 49
DD
. The excep-
R/W-1
VR0
DD
. The
bit 0
REF