PIC16F1937-I/PT - 8-Bit 32MHz 14KB Flash XLP MCU | Microchip
MPN: PIC16F1937-I/PT ✓ نشطPIC16F1937-I/PT نظرة عامة
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.
بدائل مباشرة لـ PIC16F1937-I/PT — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC16F1937-I/PT (نفس عامل الشكل والبصمة) — يختلف في Package, LCD Driver, Timers, ADC, I/O Pins.
PIC16LF1937-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16F1937T-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16F1936-I/PT
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
PIC16F1934-I/PT
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16F1947-I/PT
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16F19186-I/PT
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16F1937-I/PT الحدود القصوى والخصائص الكهربائية
| 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 |
| نطاق درجة حرارة التشغيل | -40C to +85C (Industrial, -I suffix) |
| العلبة | 44-pin TQFP (PT), 10 x 10 mm |
| نوع التركيب | Surface Mount |
| Hardware Stack Depth | 16 levels |
| حالة RoHS | Compliant |
تكوين أطراف PIC16F1937-I/PT
| دبوس 1 | RA0/AN0/C1IN+/SEG15 — PORTA bit 0, analog input 0, comparator 1 non-inverting input, LCD segment 15 |
| دبوس 2 | RA1/AN1/C1IN-/SEG14 — PORTA bit 1, analog input 1, comparator 1 inverting input, LCD segment 14 |
| دبوس 3 | RA2/AN2/C2IN+/SEG13 — PORTA bit 2, analog input 2, comparator 2 non-inverting input, LCD segment 13 |
| دبوس 4 | RA3/AN3/VREF+/C1IN+/SEG12 — PORTA bit 3, analog input 3, voltage reference plus, comparator input, LCD segment 12 |
| دبوس 5 | MCLR/VPP/RE3 — Master clear reset / programming voltage / PORTE bit 3 |
| دبوس 6 | RA4/SEG11 — PORTA bit 4, LCD segment 11 (open-drain output) |
| دبوس 7 | RA5/AN4/C2IN-/SEG10 — PORTA bit 5, analog input 4, comparator 2 inverting input, LCD segment 10 |
| دبوس 8 | RA6 — PORTA bit 6 (general digital I/O) |
| دبوس 9 | RA7 — PORTA bit 7 (general digital I/O) |
| دبوس 10 | VSS — Ground reference |
| دبوس 11 | VDD — Positive supply voltage (2.3V to 5.5V) |
| دبوس 12 | RB0/AN12/C2IN+/SEG7 — PORTB bit 0, analog input 12, comparator input, LCD segment 7 |
| دبوس 13 | RB1/AN10/C1IN2-/SEG6 — PORTB bit 1, analog input 10, comparator input, LCD segment 6 |
| دبوس 14 | RB2/AN8/SEG5 — PORTB bit 2, analog input 8, LCD segment 5 |
| دبوس 15 | RB3/AN9/C2IN2-/SEG4 — PORTB bit 3, analog input 9, comparator input, LCD segment 4 |
| دبوس 16 | RB4/AN11/SEG3 — PORTB bit 4, analog input 11, LCD segment 3 |
| دبوس 17 | RB5/AN13/SEG2 — PORTB bit 5, analog input 13, LCD segment 2 |
| دبوس 18 | RB6/ICSPCLK/ICDCLK/SEG1 — PORTB bit 6, in-circuit serial programming clock, LCD segment 1 |
| دبوس 19 | RB7/ICSPDAT/ICDDAT/SEG0 — PORTB bit 7, in-circuit serial programming data, LCD segment 0 |
| دبوس 20 | RC0/T1OSO/T1CKI — PORTC bit 0, Timer1 oscillator output, Timer1 clock input |
| دبوس 21 | RC1/T1OSI/CCP2 — PORTC bit 1, Timer1 oscillator input, Capture/Compare/PWM 2 |
| دبوس 22 | RC2/CCP1 — PORTC bit 2, Capture/Compare/PWM 1 |
| دبوس 23 | RC3/SCK/SCL — PORTC bit 3, MSSP SPI clock / I2C clock |
| دبوس 24 | RC4/SDI/SDA — PORTC bit 4, MSSP SPI data in / I2C data |
| دبوس 25 | RC5/SDO — PORTC bit 5, MSSP SPI data out |
| دبوس 26 | RC6/TX/CK — PORTC bit 6, EUSART asynchronous transmit / clock |
| دبوس 27 | RC7/RX/DT — PORTC bit 7, EUSART asynchronous receive / data |
| دبوس 28 | RD0 — PORTD bit 0 (general digital I/O) |
| دبوس 29 | RD1 — PORTD bit 1 (general digital I/O) |
| دبوس 30 | RD2 — PORTD bit 2 (general digital I/O) |
| دبوس 31 | RD3 — PORTD bit 3 (general digital I/O) |
| دبوس 32 | RD4 — PORTD bit 4 (general digital I/O) |
| دبوس 33 | RD5 — PORTD bit 5 (general digital I/O) |
| دبوس 34 | RD6 — PORTD bit 6 (general digital I/O) |
| دبوس 35 | RD7 — PORTD bit 7 (general digital I/O) |
| دبوس 36 | RE0 — PORTE bit 0 (general digital I/O) |
| دبوس 37 | RE1 — PORTE bit 1 (general digital I/O) |
| دبوس 38 | RE2 — PORTE bit 2 (general digital I/O) |
| دبوس 39 | VSS — Ground reference (second ground pin for TQFP) |
| دبوس 40 | VDD — Positive supply voltage (second supply pin for TQFP) |
| دبوس 41 | LCDBIAS3 — LCD bias generation pin 3 |
| دبوس 42 | VLCD1/SEG39 — LCD charge pump node 1 / segment 39 |
| دبوس 43 | VLCD2/SEG40 — LCD charge pump node 2 / segment 40 |
| دبوس 44 | VLCD3/SEG41 — LCD charge pump node 3 / segment 41 |
التطبيقات النموذجية
PIC16F1937-I/PT مناسب لـ 7 التطبيقs: 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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
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.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC16F1937-I/PT — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | 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 |
أبرز الفروقات
- Pin-compatible voltage variants for battery optimization (مقابلPIC16LF1937-I/PT)
- Largest SRAM and Flash in the 44-pin TQFP PIC16F19xx family (مقابلPIC16F1936-I/PT)
- Best fitting same-package upgrade on XAIPART site (مقابلPIC16F19186-I/PT)
ملاحظات التصميم
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.
معلومات الامتثال
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.