PIC16F1937-I/PT - 8-Bit 32MHz 14KB Flash XLP MCU | Microchip
MPN: PIC16F1937-I/PT ✓ פעילPIC16F1937-I/PT סקירה
An 8-bit microcontroller (MCU) is a small, self-contained computer-on-a-chip that integrates a CPU core, program memory, data RAM, EEPROM, and configurable digital and analog peripherals around a single bus. Within the broader IC hierarchy, the PIC16F1937 sits under the 8-bit MCU family, which is itself a sub-category of microcontrollers, then integrated circuits, and finally semiconductors. nanoWatt XLP technology adds a hierarchy of sleep/idle/doze modes with sub-microamp quiescent draw, extending battery life for always-on edge nodes that need to wake on an interrupt and return to sleep within microseconds.
The differentiating specifications of this part are its 14 KB of self-programmable Flash, 512 bytes of SRAM, 256 bytes of EEPROM, a 10-bit ADC with up to 14 channels, a 5-bit DAC, two 8-bit timers, three 16-bit timers, an enhanced USART, an MSSP supporting both SPI and I2C, and 36 digital I/O pins. It also integrates an LCD driver capable of driving up to 192 segments with on-chip charge pump and programmable bias resistors, eliminating the need for an external voltage booster on static to 1/4 duty multiplexed glass.
Architecturally, the device uses an enhanced mid-range 8-bit Harvard CPU core with a 14-bit instruction word, a hardware stack of 16 levels, and a 32 MHz internal oscillator that delivers 8 MIPS throughput. The internal oscillator is factory calibrated and offers software tunable HFINTOSC steps so that most designs can drop the external crystal, reducing BOM cost and freeing two pins for I/O.
Typical applications include industrial control panels with segment-LCD displays, low-power sensor nodes powered from coin cells or harvested energy, white-goods and appliance user interfaces, handheld meters, and automotive body/comfort sub-assemblies. The combination of integrated segment LCD and nanoWatt XLP makes the part especially attractive wherever a battery-driven user interface must run for months without service.
When designing with this part, place the Vdd decoupling network within 3 mm of the supply pin pair with at least a 100 nF X7R plus a bulk 1 uF ceramic. Always route the ICD header (PGC, PGD, MCLR/Vpp) on every prototype PCB even if production firmware does not use it, otherwise in-circuit debug and field firmware updates become impractical.
This page synthesizes DigiKey distributor pricing, same-family drop-in alternatives, and practical PCB design notes for the PIC16F1937-I/PT that are not collated in the manufacturer datasheet.
חלופות תחליף ישיר עבור PIC16F1937-I/PT — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם PIC16F1937-I/PT (אותו גורם צורה וטביעת רגל) — שונים ב Package, LCD Driver, Timers, ADC, I/O Pins.
PIC16LF1937-I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16F1937T-I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16F1936-I/PT
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
PIC16F1934-I/PT
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16F1947-I/PT
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16F19186-I/PT
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16F1937-I/PT דירוגים מרביים ומאפיינים חשמליים
| Core Architecture | Enhanced mid-range 8-bit PIC (Harvard) |
| Instruction Word Width | 14-bit |
| Program Memory (Flash) | 14 KB (8K x 14) |
| Data SRAM | 512 bytes |
| Data EEPROM | 256 bytes |
| Maximum CPU Frequency | 32 MHz |
| Performance | 8 MIPS |
| Operating Voltage Range | 2.3 V to 5.5 V |
| I/O Pins | 36 |
| ADC | 10-bit, up to 14 channels |
| Timers | 2 x 8-bit, 3 x 16-bit |
| Communication Peripherals | EUSART, MSSP (SPI / I2C) |
| LCD Driver | Up to 192 segments, integrated charge pump |
| DAC | 5-bit |
| Low-Power Technology | nanoWatt XLP |
| טווח טמפרטורת פעולה | -40C to +85C (Industrial, -I suffix) |
| מארז | 44-pin TQFP (PT), 10 x 10 mm |
| סוג הרכבה | Surface Mount |
| Hardware Stack Depth | 16 levels |
| סטטוס RoHS | Compliant |
תצורת פינים של PIC16F1937-I/PT
| פין 1 | RA0/AN0/C1IN+/SEG15 — PORTA bit 0, analog input 0, comparator 1 non-inverting input, LCD segment 15 |
| פין 2 | RA1/AN1/C1IN-/SEG14 — PORTA bit 1, analog input 1, comparator 1 inverting input, LCD segment 14 |
| פין 3 | RA2/AN2/C2IN+/SEG13 — PORTA bit 2, analog input 2, comparator 2 non-inverting input, LCD segment 13 |
| פין 4 | RA3/AN3/VREF+/C1IN+/SEG12 — PORTA bit 3, analog input 3, voltage reference plus, comparator input, LCD segment 12 |
| פין 5 | MCLR/VPP/RE3 — Master clear reset / programming voltage / PORTE bit 3 |
| פין 6 | RA4/SEG11 — PORTA bit 4, LCD segment 11 (open-drain output) |
| פין 7 | RA5/AN4/C2IN-/SEG10 — PORTA bit 5, analog input 4, comparator 2 inverting input, LCD segment 10 |
| פין 8 | RA6 — PORTA bit 6 (general digital I/O) |
| פין 9 | RA7 — PORTA bit 7 (general digital I/O) |
| פין 10 | VSS — Ground reference |
| פין 11 | VDD — Positive supply voltage (2.3V to 5.5V) |
| פין 12 | RB0/AN12/C2IN+/SEG7 — PORTB bit 0, analog input 12, comparator input, LCD segment 7 |
| פין 13 | RB1/AN10/C1IN2-/SEG6 — PORTB bit 1, analog input 10, comparator input, LCD segment 6 |
| פין 14 | RB2/AN8/SEG5 — PORTB bit 2, analog input 8, LCD segment 5 |
| פין 15 | RB3/AN9/C2IN2-/SEG4 — PORTB bit 3, analog input 9, comparator input, LCD segment 4 |
| פין 16 | RB4/AN11/SEG3 — PORTB bit 4, analog input 11, LCD segment 3 |
| פין 17 | RB5/AN13/SEG2 — PORTB bit 5, analog input 13, LCD segment 2 |
| פין 18 | RB6/ICSPCLK/ICDCLK/SEG1 — PORTB bit 6, in-circuit serial programming clock, LCD segment 1 |
| פין 19 | RB7/ICSPDAT/ICDDAT/SEG0 — PORTB bit 7, in-circuit serial programming data, LCD segment 0 |
| פין 20 | RC0/T1OSO/T1CKI — PORTC bit 0, Timer1 oscillator output, Timer1 clock input |
| פין 21 | RC1/T1OSI/CCP2 — PORTC bit 1, Timer1 oscillator input, Capture/Compare/PWM 2 |
| פין 22 | RC2/CCP1 — PORTC bit 2, Capture/Compare/PWM 1 |
| פין 23 | RC3/SCK/SCL — PORTC bit 3, MSSP SPI clock / I2C clock |
| פין 24 | RC4/SDI/SDA — PORTC bit 4, MSSP SPI data in / I2C data |
| פין 25 | RC5/SDO — PORTC bit 5, MSSP SPI data out |
| פין 26 | RC6/TX/CK — PORTC bit 6, EUSART asynchronous transmit / clock |
| פין 27 | RC7/RX/DT — PORTC bit 7, EUSART asynchronous receive / data |
| פין 28 | RD0 — PORTD bit 0 (general digital I/O) |
| פין 29 | RD1 — PORTD bit 1 (general digital I/O) |
| פין 30 | RD2 — PORTD bit 2 (general digital I/O) |
| פין 31 | RD3 — PORTD bit 3 (general digital I/O) |
| פין 32 | RD4 — PORTD bit 4 (general digital I/O) |
| פין 33 | RD5 — PORTD bit 5 (general digital I/O) |
| פין 34 | RD6 — PORTD bit 6 (general digital I/O) |
| פין 35 | RD7 — PORTD bit 7 (general digital I/O) |
| פין 36 | RE0 — PORTE bit 0 (general digital I/O) |
| פין 37 | RE1 — PORTE bit 1 (general digital I/O) |
| פין 38 | RE2 — PORTE bit 2 (general digital I/O) |
| פין 39 | VSS — Ground reference (second ground pin for TQFP) |
| פין 40 | VDD — Positive supply voltage (second supply pin for TQFP) |
| פין 41 | LCDBIAS3 — LCD bias generation pin 3 |
| פין 42 | VLCD1/SEG39 — LCD charge pump node 1 / segment 39 |
| פין 43 | VLCD2/SEG40 — LCD charge pump node 2 / segment 40 |
| פין 44 | VLCD3/SEG41 — LCD charge pump node 3 / segment 41 |
יישומים טיפוסיים
PIC16F1937-I/PT מתאים עבור 7 יישוםs: Industrial Control Panel with Segment LCD, Battery-Powered Sensor Node, White-Goods and Appliance User Interface, Handheld Meter and Portable Instrument, Automotive Body and Comfort Sub-Assembly, Low-Power IoT Edge Node with Segment UI, Educational and Prototyping MCU Module.
Industrial Control Panel with Segment LCD
The PIC16F1937-I/PT is a strong fit for industrial control panels because its integrated segment-LCD driver supports up to 192 segments with on-chip charge pump, eliminating the external voltage-doubling circuitry that discrete LCD controllers require. Its 14 KB Flash and 512 bytes SRAM are sufficient to drive 4-com multiplexed glass, run keypads, and store setpoint parameters in 256 bytes of EEPROM. The 32 MHz core plus nanoWatt XLP sleep lets the panel poll sensors quickly and return to sub-uA quiescent between user events, extending backup-battery life in panel-mounted designs.
מומלץ
Battery-Powered Sensor Node
The PIC16F1937-I/PT fits battery-powered sensor nodes because nanoWatt XLP technology pushes sleep current below 1 uA at 3 V, allowing coin-cell powered designs to run for years between battery changes. The 10-bit ADC and 14 input channels are ample for thermistor, photo, and voltage-sensor front-ends, while the EUSART and MSSP support SPI/I2C modules like accelerometers and sub-GHz radios. With 14 KB Flash and 256 bytes of EEPROM, firmware can store calibration constants locally for true field-serviceable nodes.
מומלץ
White-Goods and Appliance User Interface
The PIC16F1937-I/PT is well-suited to white-goods user interfaces because it integrates the segment-LCD driver, key-scan timers, and mechanical-relay drive timers in a single 44-pin TQFP, replacing two or three discrete ICs. The 5-bit DAC and PWM timers can drive buzzer or triac-control sub-circuits, while 36 digital I/O lines accommodate button matrices and status LEDs. Operating over 2.3 V to 5.5 V tolerates brown-outs in refrigerator and washing-machine supply rails without code-execution glitches.
מומלץ
Handheld Meter and Portable Instrument
The PIC16F1937-I/PT serves handheld meters well because its 8 MIPS throughput handles sensor conditioning, EUSART to BLE or USB-CDC bridges, and segment-LCD readout updates on a single chip. With 14 KB Flash there is headroom for calibration tables, multi-range measurement modes, and firmware-A/B updates via ICSP. nanoWatt XLP sleep between measurements preserves coin-cell capacity across long deployments in field or clinical instruments.
מומלץ
Automotive Body and Comfort Sub-Assembly
The PIC16F1937-I/PT is used in body and comfort sub-assemblies such as HVAC head units, mirror adjusters, and seat-control clusters because its nanoWatt XLP sleep and 2.3 V to 5.5 V supply tolerates automotive cranking transients. The segment-LCD driver with on-chip charge pump simplifies instrument-cluster displays, while 36 I/O lines can drive relays and read switch positions. Although the part is industrial-grade (-40C to +85C), it is widely used in non-safety sub-systems; for AEC-Q100 requirements the PIC16F1937 family has automotive-flagged variants per vendor PPAP.
מומלץ
Low-Power IoT Edge Node with Segment UI
The PIC16F1937-I/PT is an effective low-power IoT edge node because it combines an integrated segment-LCD driver for local status indication with nanoWatt XLP sleep modes that drop current below 1 uA at 3 V. The MSSP (SPI/I2C) and EUSART can front-end a sub-GHz radio or BLE module, while the 10-bit ADC reads analog sensors for environmental monitoring. 14 KB Flash and 256 bytes of EEPROM hold stack-light firmware plus calibration, perfect for always-on edge nodes that must wake on interrupt and report back via radio then sleep again.
מומלץ
Educational and Prototyping MCU Module
The PIC16F1937-I/PT is a strong educational and prototyping MCU because its 8-bit enhanced mid-range PIC core, abundant peripherals, and 14 KB Flash allow learners to implement real-world projects such as digital thermometers, alarm panels, and simple motor drivers on a single chip. With 36 I/O lines, a 10-bit ADC, segment-LCD driver, and EUSART/MSSP, a single PIC16F1937 board can serve as a teaching platform for analog signal conditioning, communication protocols, and low-power design. The widely adopted MPLAB X IDE ecosystem and ICD support via the PGC/PGD/MCLR pins also makes the part ideal for classroom firmware exercises and hobbyist projects.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC16F1937-I/PT — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | PIC16LF1937-I/PT | PIC16F1937T-I/PT | PIC16F1936-I/PT | PIC16F1934-I/PT | PIC16F1947-I/PT | PIC16F19186-I/PT |
|---|---|---|---|---|---|---|---|
| Package | 44-pin TQFP (PT) | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory (Flash) | 14 KB | 14 KB | 14 KB | 8 KB | 7 KB | 14 KB | 28 KB |
| Data SRAM | 512 bytes | 512 bytes | 512 bytes | 384 bytes | 256 bytes | 512 bytes | 2 KB |
| Data EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| Operating Voltage Range | 2.3 V to 5.5 V | 1.8 V to 3.6 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V | 2.3 V to 5.5 V |
| Maximum CPU Frequency | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) | 32 MHz (8 MIPS) |
| LCD Segments (max) | 192 segments | 192 segments | 192 segments | 184 segments | 184 segments | 192 segments | Not specified (newer LCD peripheral) |
| ADC (channels / resolution) | 14 / 10-bit | 14 / 10-bit | 14 / 10-bit | 11 / 10-bit | 11 / 10-bit | 14 / 10-bit | 17 / 12-bit |
מבדילים עיקריים
- Pin-compatible voltage variants for battery optimization (לעומתPIC16LF1937-I/PT)
- Largest SRAM and Flash in the 44-pin TQFP PIC16F19xx family (לעומתPIC16F1936-I/PT)
- Best fitting same-package upgrade on XAIPART site (לעומתPIC16F19186-I/PT)
הערות תכנון
Place the Vdd decoupling network within 3 mm of the supply pin pair (pins 11 and 40). Use one 100 nF X7R ceramic per Vdd pin in parallel with a bulk 1 uF ceramic, with traces kept short and wide. Tie all Vss pins (10 and 39) to a single low-impedance ground plane to minimize digital-noise coupling into the analog inputs. Add a 10 kohm pull-up on MCLR/VPP (pin 5) and a small RC (1 kohm + 100 pF) to ground on the same pin for in-circuit debug protection.
The 44-pin TQFP package has a theta_JA of approximately 45 C/W on a 2-layer 1-oz copper PCB. At the typical PIC16F1937-I/PT operating power of around 30 mW during active MCU execution at 32 MHz and 5 V, junction temperature rise above ambient is approximately 1.4 C, well within the 125 C maximum. Ensure the LCD bias resistors are sized so total LCD charge-pump current does not exceed the part's Vdd budget; for multi-plexed glass designs, derate Vdd voltage to limit charge-pump dissipation.
Always route the ICD header (PGC on RB6/ICSPDAT on RB7 plus MCLR/VPP) on every prototype PCB even if the production firmware does not use it, otherwise in-circuit debug and field firmware updates become impractical. When migrating from PIC16F1937 to PIC16LF1937, do not exceed 3.6 V on Vdd because the LF variant's lower-voltage window reduces ESD margin. Confirm that the segment-LCD charge-pump capacitor on VLCD1/VLCD2/VLCD3 is rated for the programmed bias mode; an undersized capacitor will produce ghosted segments in 1/4 duty glass.
Route the analog ADC inputs on a separate layer with continuous ground shielding and avoid routing digital lines (especially EUSART TX/CK and PWM outputs) parallel to them. The integrated segment LCD pins can drive long traces to the glass, but keep them together and away from sensitive analog sensor lines to avoid capacitive noise coupling. Place a bulk 10 uF + 100 nF ceramic pair on the Vdd pins of any external EUSART or SPI peripheral to ensure clean bus signals during high-current radio bursts.
מידע על תאימות
RoHS compliant, REACH SVHC compliant, lead-free, and halogen-free per Microchip material declaration as of 2026-10-09. Industrial-grade -I temperature variant is not AEC-Q100 qualified; for AEC-Q100 automotive designs use Microchip's automotive-flagged PIC16F1937 variants or consult PPAP documentation.