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  Microchip Technology Semiconductor Electronic Components Datasheet  

PIC16LF1903 Datasheet

8-Bit CMOS MCU

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PIC16LF1902/3
28-Pin Flash-Based, 8-Bit CMOS MCUs with LCD Driver
and XLP Technology
High-Performance RISC CPU
• C Compiler Optimized Architecture
• Only 49 Instructions
• Operating Speed:
- DC – 20 MHz clock input @ 3.6V
- DC – 16 MHz clock input @ 1.8V
- DC – 200 ns instruction cycle
• Interrupt Capability with Automatic Context
Saving
• 16-Level Deep Hardware Stack with Optional
Overflow/Underflow Reset
• Direct, Indirect and Relative Addressing modes:
- Two full 16-bit File Select Registers (FSRs)
- FSRs can read program and data memory
Memory
• Up to 7 Kbytes Self-Write/Read Flash Program
Memory Addressing
• Up to 256 Bytes Data Memory Addressing
• High-Endurance Flash Data Memory (HEF)
- 128B of nonvolatile memory
- 100K erase/write cycles
Flexible Oscillator Structure
• 16 MHz Internal Oscillator:
- Accuracy to ± 3%, typical
- Software selectable frequency range from
16 MHz to 31.25 kHz
• 31 kHz Low-Power Internal Oscillator
• Three External Clock modes up to 20 MHz
• Two-Speed Oscillator Start-up
• Low-Power RTC Implementation via LPT1OSC
Special Microcontroller Features
• Operating Voltage Range:
- 1.8V-3.6V
• Self-Programmable under Software Control
• Power-on Reset (POR)
• Power-up Timer (PWRT)
• Low-Power Brown-Out Reset (LPBOR)
• Extended Watchdog Timer (WDT)
• In-Circuit Serial Programming™ (ICSP™) via
Two Pins
• Enhanced Low-Voltage Programming (LVP)
• Programmable Code Protection
• Power-Saving Sleep mode
eXtreme Low-Power (XLP) Features
(PIC16LF1902/3)
• Sleep Current
- 30 nA @ 1.8V, typical
• Watchdog Timer Current:
- 300 nA @ 1.8V, typical
• Secondary Oscillator: 500 nA @ 32 kHz,1.8V,
typical
Analog Features
• Analog-to-Digital Converter (ADC):
- 10-bit resolution, up to 11 channels
- Conversion available during Sleep
- Dedicated ADC RC oscillator
- Fixed Voltage Reference (FVR) as channel
• Integrated Temperature Indicator
• Voltage Reference module:
- Fixed Voltage Reference (FVR) with 1.024V
and 2.048V output levels
Peripheral Highlights
• Up to 25 I/O Pins and 1 Input-only Pin:
- High current 25 mA sink/source
- Individually programmable weak pull-ups
- Individually programmable interrupt-on-
change (IOC) pins
• Integrated LCD Controller:
- 19 segment pins and 72 total segments
- Variable clock input
- Contrast control
- Internal voltage reference selections
• Timer0: 8-Bit Timer/Counter with 8-Bit
Programmable Prescaler
• Enhanced Timer1:
- 16-bit timer/counter with prescaler
- External Gate Input mode
- Dedicated low-power 32 kHz oscillator driver
2011-2016 Microchip Technology Inc.
DS40001455F-page 1


  Microchip Technology Semiconductor Electronic Components Datasheet  

PIC16LF1903 Datasheet

8-Bit CMOS MCU

No Preview Available !

PIC16LF1902/3
PIC16LF1902/3 Family Types
Device
LCD
PIC16LF1902 (1)
2048
128 128 25 11 1/1 —
4 19 72(3)
PIC16LF1903 (1)
4096
256 128 25 11 1/1 —
4 19 72(3)
PIC16LF1904 (2)
4096
256 128 36 14 1/1 1
4 29 116
PIC16LF1906 (2)
8192
512 128 25 11 1/1 1
4 19 72(3)
PIC16LF1907 (2)
8192
512 128 36 14 1/1 1
4 29 116
Note 1: I - Debugging, Integrated on Chip; H - Debugging, available using Debug Header.
2: One pin is input-only.
3: COM3 and SEG15 share a pin, so the total segments are limited to 72 for 28-pin devices.
Data Sheet Index: (Unshaded devices are described in this document.)
1: DS40001455 PIC16LF1902/1903 Data Sheet, 28-Pin Flash, 8-bit Microcontrollers.
2: DS40001569 PIC16LF1904/6/7 Data Sheet, 28/40/44-Pin Flash, 8-bit Microcontrollers.
H
H
I/H
I/H
I/H
Y
Y
Y
Y
Y
Pin Diagrams
FIGURE 1:
28-PIN PDIP, SOIC, SSOP
VPP/MCLR/RE3
SEG12/AN0/RA0
SEG7/AN1/RA1
COM2/AN2/RA2
SEG15/COM3/VREF+/AN3/RA3
SEG4/T0CKI/RA4
SEG5/AN4/RA5
VSS
SEG2/CLKIN/RA7
SEG1/CLKOUT/RA6
T1CKI/T1OSO/RC0
T1OSI/RC1
SEG3/RC2
SEG6/RC3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28 RB7(1)/SEG13/ICSPDAT
27 RB6(1)/SEG14/ICSPCLK
26 RB5(1)/AN13/COM1
25 RB4(1)/AN11/COM0
24 RB3(1)/AN9/SEG26/VLCD3
23 RB2(1)/AN8/SEG25/VLCD2
22 RB1(1)/AN10/SEG24/VLCD1
21 RB0(1)/AN12/INT/SEG0
20 VDD
19 VSS
18 RC7/SEG8
17 RC6/SEG9
16 RC5/SEG10
15 RC4/T1G/SEG11
Note 1: These pins have interrupt-on-change functionality.
DS40001455F-page 2
2011-2016 Microchip Technology Inc.


Part Number PIC16LF1903
Description 8-Bit CMOS MCU
Maker Microchip
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