PIC16F1938-I/ML Microchip Technology, PIC16F1938-I/ML Datasheet - Page 71

• 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

4.0
The PIC16F193X/LF193X device family features an
interruptible core, allowing certain events to preempt
normal program flow. An Interrupt Service Routine
(ISR) is used to determine the source of the interrupt
and act accordingly. Some interrupts can be configured
to wake the MCU from Sleep mode.
The PIC16F193X/LF193X device family has 23 inter-
rupt sources, differentiated by corresponding interrupt
enable and flag bits:
• External Edge Detect on INT Pin Interrupt
• Interrupt-on-Change Interrupt
• A/D Conversion Complete Interrupt
• EEPROM Write Complete Interrupt
• EUSART Receive Interrupt
• EUSART Transmit Interrupt
• LCD Module Interrupt
• Oscillator Fail Interrupt
FIGURE 4-1:
© 2009 Microchip Technology Inc.
INTERRUPTS
From Peripheral Interrupt
Logic (Figure 4-2)
INTERRUPT LOGIC
TMR0IF
TMR0IE
IOCIE
IOCIF
INTF
INTE
PEIE
GIE
Preliminary
• Timer0 Overflow Interrupt
• Timer1 Gate Interrupt
• Timer1 Overflow Interrupt
• Timer2 Match with PR2 Interrupt
• Timer4 Match with PR4 Interrupt
• Timer6 Match with PR6 Interrupt
• Comparator C1 Interrupt
• Comparator C2 Interrupt
• CCP1 Event Interrupt
• CCP2 Event Interrupt
• CCP3 Event Interrupt
• CCP4 Event Interrupt
• CCP5 Event Interrupt
• MSSP Event Interrupt
• MSSP Bus Collision Interrupt
A block diagram of the interrupt logic is shown in
Figure 4-1.
PIC16F193X/LF193X
Wake-up (If in Sleep mode)
Interrupt to CPU
DS41364C-page 71