PIC16F1938-I/ML Microchip Technology, PIC16F1938-I/ML Datasheet - Page 158

• Manufacturer Part Number: PIC16F1938-I/ML
• Description: IC MCU 8BIT FLASH 28QFN
• Manufacturer: Microchip Technology
• Series: PIC® XLP™ 16Fr

Specifications of PIC16F1938-I/ML

• Core Size: 8-Bit
• Program Memory Size: 28KB (16K x 14)
• Oscillator Type: Internal
• Core Processor: PIC
• Speed: 32MHz
• Connectivity: I²C, LIN, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LCD, POR, PWM, WDT
• Number Of I /o: 25
• Program Memory Type: FLASH
• Eeprom Size: 256 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 1.8 V ~ 5.5 V
• Data Converters: A/D 11x10b
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 28-VQFN Exposed Pad, 28-HVQFN, 28-SQFN, 28-DHVQFN
• Controller Family/series: PIC16F
• No. Of I/o's: 25
• Eeprom Memory Size: 256Byte
• Ram Memory Size: 1024Byte
• Cpu Speed: 32MHz
• Package: 28QFN EP
• Device Core: PIC
• Family Name: PIC16
• Maximum Speed: 32 MHz
• Operating Supply Voltage: 2.5|3.3|5 V
• Data Bus Width: 8 Bit
• Number Of Programmable I/os: 25
• Interface Type: I2C/SPI/USART
• On-chip Adc: 11-chx10-bit
• Number Of Timers: 5
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

PIC16F193X/LF193X
REGISTER 14-1:
TABLE 14-1:
DS41364C-page 158
bit 7
Legend:
R = Readable bit
u = bit is unchanged
‘1’ = Bit is set
bit 7
bit 6
bit 5-4
bit 3-2
bit 1-0
Note 1:
FVRCON
Legend:
R/W-0/0
FVREN
Name
2:
FVRRDY is always ‘1’ on regulated parts (PIC16F193X).
Fixed Voltage Reference output cannot exceed V
Shaded cells are not used with the voltage reference.
FVREN: Fixed Voltage Reference Enable bit
0 = Fixed Voltage Reference is disabled
1 = Fixed Voltage Reference is enabled
FVRRDY: Fixed Voltage Reference Ready Flag bit
0 = Fixed Voltage Reference output is not active or stable
1 = Fixed Voltage Reference output is ready for use
Reserved: Read as ‘0’. Maintain these bits clear.
CDAFVR<1:0>: Comparator and D/A Converter Fixed Voltage Reference Selection bit
00 = Comparator and D/A Converter Fixed Voltage Reference Peripheral output is off.
01 = Comparator and D/A Converter Fixed Voltage Reference Peripheral output is 1x (1.024V)
10 = Comparator and D/A Converter Fixed Voltage Reference Peripheral output is 2x (2.048V)
11 = Comparator and D/A Converter Fixed Voltage Reference Peripheral output is 4x (4.096V)
ADFVR<1:0>: A/D Converter Fixed Voltage Reference Selection bit
00 = A/D Converter Fixed Voltage Reference Peripheral output is off.
01 = A/D Converter Fixed Voltage Reference Peripheral output is 1x (1.024V)
10 = A/D Converter Fixed Voltage Reference Peripheral output is 2x (2.048V)
11 = A/D Converter Fixed Voltage Reference Peripheral output is 4x (4.096V)
FVREN
FVRRDY
REGISTERS ASSOCIATED WITH VOLTAGE REFERENCE
Bit 7
R-q/q
FVRCON: FIXED VOLTAGE REFERENCE CONTROL REGISTER
(1)
FVRRDY
Bit 6
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
R/W-0/0
—
TSEN
Bit 5
R/W-0/0
Preliminary
—
TSRNG
Bit 4
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
q = Value depends on condition
CDAFVR1
DD
CDAFVR1
R/W-0/0
.
Bit 3
(1)
CDAFVR0
CDAFVR0
Bit 2
R/W-0/0
ADFVR1
Bit 1
© 2009 Microchip Technology Inc.
ADFVR1
R/W-0/0
(2)
(2)
ADFVR0
Bit 0
ADFVR0
R/W-0/0
Register
on page
(2)
(2)
158
bit 0