PIC10F322T-I/OT Microchip Technology, PIC10F322T-I/OT Datasheet - Page 85

• Manufacturer Part Number: PIC10F322T-I/OT
• Description: 896 B Flash, 64 B RAM, 4 I/O, 8bit ADC, PWM, CLC, DDS, CWG, TEMP Indicator, 2.3V
• Manufacturer: Microchip Technology

Specifications of PIC10F322T-I/OT

• Core: RISC
• Processor Series: PIC10F
• Data Bus Width: 8 bit
• Maximum Clock Frequency: 31 KHz
• Program Memory Size: 512 B
• Data Ram Size: 64 B
• Number Of Programmable I/os: 4
• Number Of Timers: 2
• Operating Temperature Range: - 40 C to + 85 C
• Package / Case: SOT-23-6
• Mounting Style: SMD/SMT
• Maximum Operating Temperature: + 85 C
• Program Memory Type: Flash
• Lead Free Status / Rohs Status: Details

12.0
The Fixed Voltage Reference, or FVR, is a stable
voltage reference, independent of V
2.048V or 4.096V selectable output levels. The output
of the FVR can be configured to supply a reference
voltage to the following:
• ADC input channel
The FVR can be enabled by setting the FVREN bit of
the FVRCON register.
FIGURE 12-1:
TABLE 12-1:
 2011 Microchip Technology Inc.
HFINTOSC
BOR
IVR
Peripheral
FIXED VOLTAGE REFERENCE
(FVR)
FOSC = 1
BOREN<1:0> = 11
BOREN<1:0> = 10 and BORFS = 1
BOREN<1:0> = 01 and BORFS = 1
All PIC10F320/322 devices, when
VREGPM1 = 1 and not in Sleep
Any peripheral requiring
PERIPHERALS REQUIRING THE FIXED VOLTAGE REFERENCE (FVR)
the Fixed Reference
FVREN
(See
VOLTAGE REFERENCE BLOCK DIAGRAM
Table
ADFVR<1:0>
Conditions
12-1)
DD
, with 1.024V,
2
+
-
Preliminary
1.024V Fixed
Reference
EC on CLKIN pin.
BOR always enabled.
BOR disabled in Sleep mode, BOR Fast Start enabled.
BOR under software control, BOR Fast Start enabled.
The device runs off of the Power-Save mode regulator when
in Sleep mode.
x1
x2
x4
12.1
The output of the FVR supplied to the ADC is routed
through an independent programmable gain amplifier.
The amplifier can be configured to amplify the
reference voltage by 1x, 2x or 4x, to produce the three
possible voltage levels.
The ADFVR<1:0> bits of the FVRCON register are
used to enable and configure the gain amplifier settings
for the reference supplied to the ADC module. Refer-
ence
(ADC) Module”
12.2
When the Fixed Voltage Reference module is enabled, it
requires time for the reference and amplifier circuits to
stabilize. Once the circuits stabilize and are ready for use,
the FVRRDY bit of the FVRCON register will be set. See
Section 24.0 “Electrical Specifications”
minimum delay requirement.
FVRRDY
Section 15.0 “Analog-to-Digital Converter
PIC10(L)F320/322
Independent Gain Amplifiers
FVR Stabilization Period
for additional information.
Description
(To ADC Module)
FVR
DS41585A-page 85
for the