PIC16F1938-I/ML Microchip Technology, PIC16F1938-I/ML Datasheet - Page 110

• 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
8.2
The Oscillator Control (OSCCON) register (Figure 8-1)
controls the system clock and frequency selection
options. The OSCCON register contains the following
bits:
• Frequency selection bits (IRCF)
• System clock select bits (SCS)
• Software PLL enable bit (SPLLEN)
REGISTER 8-1:
DS41364C-page 110
bit 7
Legend:
R = Readable bit
u = bit is unchanged
‘1’ = Bit is set
bit 7
bit 6-3
bit 2
bit 1-0
Note 1:
SPLLEN
R/W-0/0
2:
Oscillator Control
Reset state depends on state of the IESO Configuration bit.
Duplicate frequency derived from HFINTOSC.
SPLLEN: Software PLL Enable bit
If PLLEN = 1:
SPLLEN bit is ignored. 4x PLL is always enabled (subject to oscillator requirements)
If PLLEN = 0:
1 = 4x PLL Is enabled
0 = 4x PLL is disabled
IRCF<3:0>: Internal Oscillator Frequency Select bits
000x = 31 kHz LF
0010 = 31.25 kHz MF
0011 = 31.25 kHz HF
0100 = 62.5 kHz MF
0101 = 125 kHz MF
0110 = 250 kHz MF
0111 = 500 kHz MF (default upon Reset)
1000 = 125 kHz HF
1001 = 250 kHz HF
1010 = 500 kHz HF
1011 = 1 MHz HF
1100 = 2 MHz HF
1101 = 4 MHz HF
1110 = 8 MHz HF
1111 = 16 MHz HF
Unimplemented: Read as ‘0’
SCS<1:0>: System Clock Select bits
1x = Internal oscillator block
01 = Timer1 oscillator
00 = Clock determined by CONFIG1[FOSC<2:0>].
R/W-0/0
IRCF3
OSCCON: OSCILLATOR CONTROL REGISTER
W = Writable bit
x = Bit is unknown
‘0’ = Bit is cleared
R/W-1/1
(2)
(2)
(2)
IRCF2
(2)
R/W-1/1
IRCF1
Preliminary
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
R/W-1/1
IRCF0
U-0
—
© 2009 Microchip Technology Inc.
R/W-0/0
SCS1
R/W-0/0
SCS0
bit 0