PIC16F1934-E/ML - 8-bit PIC XLP MCU 7KB Flash 32MHz QFN-44 | Microchip
MPN: PIC16F1934-E/ML ✓ Hoạt độngPIC16F1934-E/ML Tóm tắt
What is an 8-bit PIC microcontroller? A PIC (Peripheral Interface Controller) microcontroller is a Harvard-architecture RISC device that integrates a CPU, non-volatile program memory, RAM, peripherals and I/O into a single chip. Within that hierarchy, the PIC16F1934 belongs to the PIC16 family -> mid-range 8-bit MCUs -> nanoWatt XLP extreme-low-power family -> 28/40/44-pin LCD-driver sub-family. PIC MCUs are widely used for compact, low-power embedded control in consumer, industrial and automotive applications.
Key features include 32 MHz max CPU speed, 14-channel 10-bit ADC, on-chip LCD driver supporting up to 96 segments, multiple communication peripherals (EUSART, MSSP for SPI/I2C), up to 36 digital I/O pins, and nanoWatt XLP technology for sub-uA sleep currents. The integrated LCD driver eliminates the need for an external segment-driver IC, reducing both BOM cost and PCB area in segment-display designs.
The PIC16F1934-E variant is specified for the -40C to +125C extended industrial/automotive temperature range, making it suitable for harsh-environment deployments. The 44-QFN package with exposed thermal pad delivers low thermal resistance and a compact 8x8 mm footprint for space-constrained boards.
Typical applications include battery-powered sensor nodes with LCD readouts, consumer remote controls, industrial metering, home appliances with segmented displays, and small automotive body modules. The combination of low power, integrated LCD, and EEPROM makes it a strong fit for metering and handheld instruments.
Design consideration: route the exposed pad (EP) to a solid ground plane for thermal and electrical performance; do not use the LCD charge pump output to drive backplanes larger than the datasheet-recommended panel capacitance without buffering.
This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC16F1934-E/ML — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16F1934-E/ML (cùng hình factor và footprint) — khác nhau ở LCD Driver, Package, Timers, Communication, ADC.
PIC16F1934-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1934T-E/ML
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F1934T-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1936-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1937-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1934-E/ML Tỷ lệ tối đa & tính chất điện
| Product Family | PIC16F193x (mid-range 8-bit) |
| Core | Enhanced mid-range 8-bit PIC RISC |
| Program Memory (Flash) | 7 KB (4K x 14 words) |
| Data SRAM | 256 bytes |
| Data EEPROM | 256 bytes |
| Max CPU Clock | 32 MHz |
| Operating Voltage (Vdd) | 1.8 V to 5.5 V |
| Nhiệt độ hoạt động | -40C to +125C (E = extended) |
| Digital I/O Pins | 36 (max for this family) |
| ADC | 10-bit, up to 14 channels |
| Comparators | 2 |
| Timers | 4 (8-bit / 16-bit mix) |
| LCD Driver | Integrated, up to 96 segments |
| EUSART | 1 |
| MSSP (SPI / I2C) | 1 |
| PWM | Yes (CCP/ECCP) |
| Hộp | 44-pin QFN (8x8 mm) with EP |
| Kiểu lắp đặt | Surface Mount |
| RoHS | Compliant |
Cấu hình chân PIC16F1934-E/ML
| Chân 1 | RB5 — PORTB I/O bit 5 |
| Chân 2 | RB4 — PORTB I/O bit 4 |
| Chân 3 | RB3 — PORTB I/O bit 3 |
| Chân 4 | RB2 — PORTB I/O bit 2 |
| Chân 5 | RB1 — PORTB I/O bit 1 |
| Chân 6 | RB0 — PORTB I/O bit 0 / INT |
| Chân 7 | VDD — Positive supply |
| Chân 8 | VSS — Ground reference |
| Chân 9 | RA7 — PORTA I/O bit 7 |
| Chân 10 | RA6 — PORTA I/O bit 6 |
| Chân 11 | RC7 — PORTC I/O bit 7 / RX/DT |
| Chân 12 | RC6 — PORTC I/O bit 6 / TX/CK |
| Chân 13 | RC5 — PORTC I/O bit 5 |
| Chân 14 | RC4 — PORTC I/O bit 4 |
| Chân 15 | RC3 — PORTC I/O bit 3 / SCL |
| Chân 16 | RC2 — PORTC I/O bit 2 |
| Chân 17 | RC1 — PORTC I/O bit 1 |
| Chân 18 | RC0 — PORTC I/O bit 0 |
| Chân 19 | RA0 — PORTA I/O bit 0 / AN0 |
| Chân 20 | RA1 — PORTA I/O bit 1 / AN1 |
| Chân 21 | RA2 — PORTA I/O bit 2 / AN2 |
| Chân 22 | RA3 — PORTA I/O bit 3 / AN3 / VREF+ |
| Chân 23 | RA4 — PORTA I/O bit 4 / AN4 |
| Chân 24 | RA5 — PORTA I/O bit 5 / AN5 |
| Chân 25 | RE3 — PORTE I/O bit 3 / MCLR |
| Chân 26 | RD0 — PORTD I/O bit 0 |
| Chân 27 | RD1 — PORTD I/O bit 1 |
| Chân 28 | RD2 — PORTD I/O bit 2 |
| Chân 29 | RD3 — PORTD I/O bit 3 |
| Chân 30 | RD4 — PORTD I/O bit 4 |
| Chân 31 | RD5 — PORTD I/O bit 5 |
| Chân 32 | RD6 — PORTD I/O bit 6 |
| Chân 33 | RD7 — PORTD I/O bit 7 |
| Chân 34 | VSS — Ground |
| Chân 35 | VDD — Positive supply |
| Chân 36 | RB7 — PORTB I/O bit 7 |
| Chân 37 | RB6 — PORTB I/O bit 6 / PGC |
| Chân 38 | RB5 — PORTB I/O bit 5 / PGD |
| Chân 39 | RB4 — PORTB I/O bit 4 |
| Chân 40 | RB3 — PORTB I/O bit 3 |
| Chân 41 | RB2 — PORTB I/O bit 2 |
| Chân 42 | RB1 — PORTB I/O bit 1 |
| Chân 43 | RB0 — PORTB I/O bit 0 |
| Chân 44 | VSS — Ground (also exposed pad) |
Ứng dụng tiêu biểu
PIC16F1934-E/ML phù hợp cho 6 Áp dụngs: Battery-Powered Sensor Node with LCD, Industrial Metering (Water / Gas / Heat), Consumer Remote Control with Segmented Display, Home Appliance User Interface Board, Portable Medical Monitoring Accessory, Automotive Body / Comfort Module.
Battery-Powered Sensor Node with LCD
The PIC16F1934-E/ML is a strong fit for battery-powered sensor nodes that need a small segment LCD readout. Its on-chip LCD driver supports up to 96 segments without an external controller, eliminating one IC from the BOM. nanoWatt XLP sleep currents below 1 uA extend coin-cell life, while the 32 MHz core gives enough headroom for periodic sensor reads, smoothing, and UART housekeeping. Typical supply 1.8-3.3 V from a CR2032 or 2xAA source.
Được đề xuất
Industrial Metering (Water / Gas / Heat)
The PIC16F1934-E/ML suits residential and light-industrial metering thanks to its integrated LCD, EEPROM for tariff and calibration data, and 256B SRAM for rolling consumption windows. The E-grade -40C to +125C rating survives outdoor deployment in unheated enclosures. Its 10-bit ADC can digitize pulse-train flow sensors directly, while the EUSART reports to a concentrator over a wired M-Bus or wireless M-Bus link.
Được đề xuất
Consumer Remote Control with Segmented Display
Low-cost universal remotes and small appliances benefit from the PIC16F1934-E/ML's tiny QFN-44 footprint, on-chip LCD, and 14-channel ADC for cap-touch or resistive scanning. The MSSP drives SPI peripherals such as an IR LED driver or sub-GHz transceiver, while 7 KB of Flash comfortably holds multi-protocol IR code libraries. Sleep currents in the sub-uA range preserve battery life between button events.
Được đề xuất
Home Appliance User Interface Board
Washing machines, microwave ovens, and induction cooktops use the PIC16F1934-E/ML to drive a segmented LCD or LED display, scan keypads, and bridge to the main control MCU. The EUSART / MSSP links to the appliance's main controller over a simple UART or SPI harness, while the 32 MHz core handles debouncing and indicator logic without burdening the main MCU.
Được đề xuất
Portable Medical Monitoring Accessory
Handheld medical accessories such as pill dispensers, peak-flow meters, and glucometer readouts are well served by the PIC16F1934-E/ML's low-power XLP modes, integrated LCD, and reliable EEPROM for patient-log retention. The 256B EEPROM can store up to ~250 log entries, while the 14-channel ADC supports multiple sensor inputs. The -40C to +125C extended grade handles storage and transport extremes.
Được đề xuất
Automotive Body / Comfort Module
Within automotive body-electronics such as climate controls, seat-position memories, or rear-seat entertainment keypads, the PIC16F1934-E/ML's extended -40C to +125C rating and QFN-44 footprint give a small, rugged front-end controller. It can scan key matrices, drive a small segmented LCD, and report events to a central BCM over LIN or UART. Verify AEC-Q100 status with Microchip for the specific dash-line ordering code before final design-in.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F1934-E/ML — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16F1934-I/ML | PIC16F1934T-E/ML | PIC16F1936-I/ML | PIC16F1937-I/ML |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-QFN (8x8 mm) | 44-QFN (8x8 mm) | 44-QFN (8x8 mm) | 44-QFN (8x8 mm) | 44-QFN (8x8 mm) |
| Flash Memory | 7 KB | 7 KB | 7 KB | 14 KB | 14 KB |
| SRAM | 256 B | 256 B | 256 B | 512 B | 512 B |
| EEPROM | 256 B | 256 B | 256 B | 256 B | 256 B |
| Max CPU Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Operating Voltage | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Temperature Grade | -40C to +125C (E) | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) |
| Packaging Format | Tube | Tube | Tape and Reel | Tube | Tube |
Bảo phân biệt quan trọng
- Highest temperature grade in the same die/package (vsPIC16F1934-I/ML)
- Lowest-cost 7 KB Flash option in the 44-QFN family (vsPIC16F1936-I/ML)
- Integrated hardware LCD driver up to 96 segments (vsPIC16F18855-I/ML)
Ghi chú thiết kế
Solder the central exposed pad (EP) of the 44-QFN package to a ground-plane pad of at least equal size, with multiple thermal vias tying it to inner ground layers. This both reduces thermal resistance and improves electrical reference for the ADC and LCD driver. Without proper EP soldering the device can overheat at the high end of the -40C to +125C range when the CPU is active for extended periods.
Place the VDDCORE decoupling capacitor (typically 0.1 uF) within 2-3 mm of the dedicated core-supply pin, plus 10 uF bulk on VDD. Segregate the LCD segment pins to one side of the package so the LCD bias traces do not cross noisy digital traces; this preserves display contrast and avoids jitter on the charge-pump output.
Do not leave the MCLR/RE3 pin floating - tie it to VDD through a 10 kohm pull-up so unexpected resets do not occur on noisy industrial rails. When using the ADC, ensure the band-gap reference is allowed the datasheet-specified settling time after enabling, or measured values will be low by tens of counts. Finally, lock the configuration bits in code to prevent accidental overwrite by a runaway programmer session.
Thông tin tuân thủ
RoHS and lead-free per Microchip product page and DigiKey listing. -E grade indicates extended industrial / automotive temperature range but is not equivalent to AEC-Q100 qualification - confirm with Microchip for automotive dash-line orders. Halogen-free status not explicitly stated in verified data.
