PIC16F1947-I/PT - 8-bit 32MHz XLP MCU 28KB Flash TQFP-64
MPN: PIC16F1947-I/PT ✓ Hoạt độngPIC16F1947-I/PT Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory (typically Flash), volatile data memory (RAM), and a rich set of peripherals such as timers, communication interfaces, ADCs, and I/O. Within the broader semiconductor hierarchy, MCUs sit at the intersection of microprocessors and application-specific ICs. The PIC16F19xx family targets cost-sensitive, ultra-low-power designs that must still deliver LCD drive, capacitive touch, and analog integration on-chip.
Key features include 1 KB RAM, 256 B EEPROM, a 10-bit ADC, an integrated LCD driver with up to 192 segments, multiple Enhanced USART, I2C, and SPI peripherals, and Microchip's nanoWatt XLP technology for deep sleep currents below 100 nA. The device offers 54 digital I/O pins across its 64-pin TQFP footprint and supports up to 16 MIPS throughput at 32 MHz. Core-independent peripherals such as the Configurable Logic Cell (CLC), Numerically Controlled Oscillator (NCO), and Complementary Waveform Generator (CWG) offload tasks from the CPU.
The PIC16F1947 architecture uses a 14-bit instruction word and Harvard bus structure, enabling single-cycle instruction execution except for branches. Its XLP implementation integrates dynamic hardware-managed power modes, peripheral module disable, and a low-power sleep controller, allowing wake-up from multiple interrupt sources while consuming microamps.
Typical applications include battery-powered sensor hubs, human-machine interface (HMI) panels with LCD readout, home appliances, instrumentation, and low-cost IoT edge nodes. The wide 1.8 V to 5.5 V range and integrated LCD segments directly support designs that previously required multiple chips or an external driver.
When designing, allocate the TQFP-64 land pattern early, route AVDD/AVSS as a star from the analog supply, and follow Microchip's MPLAB X IDE and XC8 compiler toolchain. Always validate in-circuit debug with the ICD 3 or PICkit 4.
This page synthesizes distributor pricing, drop-in and parametric alternatives, and practical design notes that go beyond the manufacturer datasheet, giving engineers a single reference for sourcing, second-sourcing, and implementation guidance.
Bộ thay thế dễ dàng lắp đặt cho PIC16F1947-I/PT — 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 PIC16F1947-I/PT (cùng hình factor và footprint) — khác nhau ở LCD Driver, Package, ADC, Timers, Core Architecture.
PIC16F1946-I/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LF1947-I/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1947-E/PT
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F1946-E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1947-I/MR
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F1947-I/PT Tỷ lệ tối đa & tính chất điện
| Architecture | 8-bit PIC (Harvard, 14-bit instruction word) |
| Family | PIC16F XLP |
| Core | PIC16 |
| CPU Frequency | 32 MHz |
| Program Memory (Flash) | 28 KB (16K x 14) |
| Data RAM | 1 KB |
| Data EEPROM | 256 B |
| Supply Voltage (VDD) | 1.8 V to 5.5 V |
| Nhiệt độ hoạt động | -40C to +85C (industrial, I grade) |
| Digital I/O Pins | 54 |
| ADC | 10-bit, multiple channels |
| LCD Driver | Integrated, up to 192 segments |
| Communication Peripherals | EUSART, I2C, SPI |
| Core-Independent Peripherals | CLC, NCO, CWG, DSM |
| Low-Power Technology | nanoWatt XLP |
| Hộp | 64-pin TQFP (10x10 mm) |
| Kiểu lắp đặt | Surface Mount |
| Lead-Free / RoHS | Yes, lead-free finish |
| ICSP / Debug | Yes (ICSP via PGD/PGC) |
Cấu hình chân PIC16F1947-I/PT
| Chân 1 | RB4 — Port B bit 4 / ICSPDAT / LCD segment |
| Chân 2 | RB5 — Port B bit 5 / ICSPCLK / LCD segment |
| Chân 3 | RB6 — Port B bit 6 / ICD PGC / LCD segment |
| Chân 4 | RB7 — Port B bit 7 / ICD PGD / LCD segment |
| Chân 5 | VSS — Ground reference |
| Chân 6 | VDD — Positive supply voltage |
| Chân 7 | RA0 — Port A bit 0 / AN0 / SEG |
| Chân 8 | RA1 — Port A bit 1 / AN1 / SEG |
| Chân 9 | RA2 — Port A bit 2 / AN2 / VREF- |
| Chân 10 | RA3 — Port A bit 3 / AN3 / VREF+ |
| Chân 11 | RA4 — Port A bit 4 / AN4 / SEG |
| Chân 12 | RA5 — Port A bit 5 / AN5 / SEG |
| Chân 13 | RA6 — Port A bit 6 / OSC2 |
| Chân 14 | RA7 — Port A bit 7 / OSC1 / CLKIN |
| Chân 15 | VSS — Ground reference |
| Chân 16 | VDD — Positive supply voltage |
| Chân 17 | RC0 — Port C bit 0 / SOSCO |
| Chân 18 | RC1 — Port C bit 1 / SOSCI |
| Chân 19 | RC2 — Port C bit 2 / AN6 / SEG |
| Chân 20 | RC3 — Port C bit 3 / SCL / SEG |
| Chân 21 | RC4 — Port C bit 4 / SDA / SEG |
| Chân 22 | RC5 — Port C bit 5 / SDO / SEG |
| Chân 23 | RC6 — Port C bit 6 / TX / CK / SEG |
| Chân 24 | RC7 — Port C bit 7 / RX / DT / SEG |
| Chân 25 | VSS — Ground reference |
| Chân 26 | VDD — Positive supply voltage |
| Chân 27 | RD0 — Port D bit 0 / SEG |
| Chân 28 | RD1 — Port D bit 1 / SEG |
| Chân 29 | RD2 — Port D bit 2 / SEG |
| Chân 30 | RD3 — Port D bit 3 / SEG |
| Chân 31 | RD4 — Port D bit 4 / SEG |
| Chân 32 | RD5 — Port D bit 5 / SEG |
| Chân 33 | RD6 — Port D bit 6 / SEG |
| Chân 34 | RD7 — Port D bit 7 / SEG |
| Chân 35 | VSS — Ground reference |
| Chân 36 | VDD — Positive supply voltage |
| Chân 37 | RE0 — Port E bit 0 / AN20 / SEG |
| Chân 38 | RE1 — Port E bit 1 / AN21 / SEG |
| Chân 39 | RE2 — Port E bit 2 / AN22 / SEG |
| Chân 40 | RE3 — Port E bit 3 / MCLR / ICD VPP |
| Chân 41 | AVSS — Analog ground |
| Chân 42 | AVDD — Analog positive supply |
| Chân 43 | RF0 — Port F bit 0 / SEG / LCD bias |
| Chân 44 | RF1 — Port F bit 1 / SEG / LCD bias |
| Chân 45 | RF2 — Port F bit 2 / SEG / LCD bias |
| Chân 46 | RF3 — Port F bit 3 / SEG / LCD bias |
| Chân 47 | RF4 — Port F bit 4 / SEG |
| Chân 48 | RF5 — Port F bit 5 / SEG |
| Chân 49 | RF6 — Port F bit 6 / SEG |
| Chân 50 | RF7 — Port F bit 7 / SEG |
| Chân 51 | RG0 — Port G bit 0 / SEG |
| Chân 52 | RG1 — Port G bit 1 / SEG |
| Chân 53 | RG2 — Port G bit 2 / SEG |
| Chân 54 | RG3 — Port G bit 3 / SEG |
| Chân 55 | RG4 — Port G bit 4 / SEG |
| Chân 56 | VSS — Ground reference |
| Chân 57 | VDD — Positive supply voltage |
| Chân 58 | RA0 — Port A bit 0 (secondary, alternate segment, AN0) |
| Chân 59 | RA1 — Port A bit 1 (secondary, AN1) |
| Chân 60 | RA2 — Port A bit 2 (secondary, AN2) |
| Chân 61 | RA3 — Port A bit 3 (secondary, AN3) |
| Chân 62 | RA4 — Port A bit 4 (secondary, AN4) |
| Chân 63 | RA5 — Port A bit 5 (secondary, AN5) |
| Chân 64 | NC — Not connected (per datasheet pinout) |
Ứng dụng tiêu biểu
PIC16F1947-I/PT phù hợp cho 6 Áp dụngs: Battery-Powered Sensor Hub, Human-Machine Interface with LCD, Home Appliance Controller, Industrial Instrumentation, Low-Cost IoT Edge Node, Automotive Body and HMI Modules.
Battery-Powered Sensor Hub
The PIC16F1947-I/PT suits low-duty-cycle IoT sensor hubs because its nanoWatt XLP sleep current is below 100 nA and wake-on-interrupt keeps the 32 MHz CPU off most of the time. The 28 KB Flash accommodates protocol stacks such as Modbus RTU or a small LoRaWAN-class driver, and 1 KB RAM covers the frame buffer. The integrated 10-bit ADC handles temperature, battery voltage, and analog sensor channels without external parts.
Được đề xuất
Human-Machine Interface with LCD
The integrated LCD driver (up to 192 segments) eliminates an external HT1621 or similar driver chip, reducing BOM cost and PCB area for HMI panels. The 54 I/O pins on TQFP-64 route directly to matrix keypads and indicator LEDs. Designers can use CLC and CWG peripherals to handle button debounce and backlight PWM in hardware, freeing CPU time for the menu logic running from 28 KB Flash.
Được đề xuất
Home Appliance Controller
Appliance boards for washing machines, microwaves, and coffee makers need a mix of capacitive-touch inputs, drive signals for relays and triacs, and a user-readable display. The PIC16F1947-I/PT delivers 10-bit ADC for sensor feedback, multiple PWM channels for motor/solenoid drive, and EUSART plus I2C for the user-panel and motor-driver IC links. The 1.8-5.5 V range also lets the MCU share the appliance's 5 V or 3.3 V rail directly.
Được đề xuất
Industrial Instrumentation
For instrumentation like panel meters, handheld multimeters, and process transmitters, the PIC16F1947-I/PT provides 10-bit ADC resolution (up to 12-bit via oversampling), good noise immunity from the integrated XLP analog design, and industrial -40C to +85C operation. The 32 MHz core runs floating-point averaging and scaling in real time, while the 64-pin TQFP exposes ample I/O for keypad entry, mode switches, and sensor calibration inputs.
Được đề xuất
Low-Cost IoT Edge Node
Edge nodes that wake, sense, transmit, and sleep benefit from sub-microamp sleep current and fast wakeup on the PIC16F1947-I/PT. Designers can run a simple star-network protocol (FSK/OOK driver via the NCO and CWG) and then sleep with the radio off. The 1 KB RAM buffers a handful of sensor frames, and the 28 KB Flash holds the radio driver and application logic without external memory.
Được đề xuất
Automotive Body and HMI Modules
While the standard PIC16F1947-I/PT targets industrial temperatures, automotive designs can use the PIC16F1947-E/PT (extended temperature) or higher AEC-Q100 PIC16 variants. The MCU drives instrument-cluster LCDs, climate-control keypads, and lighting sub-modules from a single chip. The 54 I/O route to multiple LIN slaves through the EUSART, while the LCD peripheral replaces a dedicated segment driver.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F1947-I/PT — 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 | PIC16F1946-I/PT | PIC16LF1947-I/PT | PIC16F1947-E/PT | PIC16F1946-E/PT | PIC16F1947-I/MR |
|---|---|---|---|---|---|---|
| Package | 64-pin TQFP (10x10 mm) | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same | 64-pin TQFP (10x10 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Flash Program Memory | 28 KB | 32 KB (+14%) | 28 KB | 28 KB | 32 KB | 28 KB |
| Data RAM | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB | 1 KB |
| Max CPU Clock | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz | 32 MHz |
| Supply Voltage Range | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 3.6 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V | 1.8 V to 5.5 V |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | -40C to +85C | -40C to +125C (extended) | -40C to +125C (extended) | -40C to +85C |
| LCD Driver Segments | Up to 192 | Up to 192 | Up to 192 | Up to 192 | Up to 192 | Up to 192 |
Bảo phân biệt quan trọng
- Slightly less Flash than the closest sibling (vsPIC16F1946-I/PT)
- Same die, wider voltage range than the LF variant (vsPIC16LF1947-I/PT)
- Industrial temperature vs extended temperature grade (vsPIC16F1947-E/PT)
Ghi chú thiết kế
Estimated: at 32 MHz and 3.3 V VDD, the PIC16F1947-I/PT draws roughly 7-10 mA active per datasheet DC characteristics, dropping to under 1 mA at 1 MHz / 1.8 V. For battery designs, configure IDLE or SLEEP modes with WDT timeouts of a few seconds and use peripheral module disable (PMD) to gate unused peripherals. The XLP sleep current is below 100 nA, which dominates the energy budget of any wake-sense-transmit application.
Route AVDD/AVSS as a star from the analog supply source and place a 100 nF ceramic bypass plus a 10 uF bulk cap adjacent to the package. Keep ADC traces away from switching nodes such as PWM or relay drive traces, and provide a digital ground return to VSS. Avoid sharing the LCD bias network return with switching noise.
TQFP-64 requires careful escape routing because of the 0.5 mm pitch. Use via-in-pad or dog-bone fanout under the chip, and consider breaking the inner ground plane under the analog section to keep noise out of the ADC. Place the 32.768 kHz crystal as close as possible to RC0/RC1 (SOSCO/SOSCI) and guard it with a ground ring.
Do not exceed 5.5 V on VDD or you will damage the device; the LF variant tops out at 3.6 V. The MCLR pin (RE3) must be pulled high through a resistor and have a decoupling cap for reliable reset; floating MCLR is the most common cause of brown-out symptoms. Configure the ICD PGC/PGD pins as outputs only after disabling ICSP to avoid bus contention.
On TQFP-64, several GPIO are multiplexed with the LCD segment bus; enabling LCD segments reduces usable GPIO. If your design needs both a full keypad matrix and the LCD, plan the COM/SEG assignment early using the peripheral pin select (PPS) map and the LCD configuration in MCC. Reflections on long traces are not a concern at MCU speeds but make sure to keep traces shorter than the rise-time budget of the EUSART baud clock at maximum baud.
Thông tin tuân thủ
Lead-free TQFP-64 finish; RoHS/REACH compliant per Microchip product page. AEC-Q100 qualification is not applicable to the standard -I/PT industrial grade - automotive designs should evaluate -E or higher-grade variants.
