PIC16F737T-I/SS - 20MHz 8-bit MCU 7KB FLASH 28-SSOP | Microchip
MPN: PIC16F737T-I/SS ✓ Hoạt độngPIC16F737T-I/SS Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, working RAM, and peripheral I/O on one die. The PIC16F737 sits in the PIC16 mid-range family, one tier above baseline PIC10/12/14 devices and below PIC18/dsPIC performance parts. PIC microcontrollers are commonly categorized by bit-width (8-bit), memory technology (FLASH), and family tier (base-line, mid-range, enhanced mid-range, PIC18). Within Microchip's portfolio, PIC16F parts are widely used in cost-sensitive embedded control where deterministic execution and a small footprint matter more than raw MIPS.
Key features of the PIC16F737 include 11 channels of 10-bit Analog-to-Digital conversion, three timers, three Capture/Compare/PWM modules, an Enhanced USART with LIN support, and nanoWatt power-management technology for low standby current. The 25 I/O pins provide ample GPIO for sensor interfacing, pushbuttons, LEDs, and serial busses. The 28-SSOP package offers thermal resistance of approximately 90 C/W and an exposed footprint compatible with hand-soldered prototypes and SMT production lines alike.
The PIC16F737's nanoWatt features (Sleep mode, internal oscillator, dynamic switching between primary and timer1 oscillator) let it draw only micro-amps in standby, suiting battery-powered or energy-harvesting applications. The 11-channel 10-bit ADC supports up to 30 ksps conversion with acquisition time selectable via software, allowing direct connection to potentiometers, thermistors, current-sense resistors, and battery-voltage monitors. Hardware PWM on three CCP channels simplifies dimming, motor-control, or power-converter feedback loops without CPU overhead.
Typical applications include consumer appliance control (white goods, HVAC user interfaces), battery chargers, automotive interior accessories (where AEC-Q100 is not required), industrial sensor transmitters, and educational/hobby embedded projects using MPLAB X IDE and the free XC8 compiler. The wide 2.0-5.5V Vdd range allows direct connection to a single Li-ion cell or a regulated 5V rail. The internal 8 MHz oscillator can be trimmed to 1% accuracy with the OSCTUNE register, eliminating an external crystal in many designs and reducing BOM cost.
When designing with the PIC16F737, place Vdd/Vss decoupling capacitors (100 nF plus 10 uF bulk) within 5 mm of the supply pins, route the MCLR pull-up with a short trace to avoid noise-induced resets, and follow Microchip's recommended ICSP connector layout to retain in-circuit programming and debugging with tools such as PICkit 3, PICkit 4, MPLAB ICD 3, or MPLAB ICD 4. The nanoWatt Sleep mode combined with WDT wake-up enables decade-long battery life in remote sensors, but verify Sleep current against your specific Vdd and temperature corner before committing.
This page synthesizes distributor pricing, parametric drop-in alternatives, and practical design notes that complement but go beyond the manufacturer datasheet content.
Bộ thay thế dễ dàng lắp đặt cho PIC16F737T-I/SS — 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 PIC16F737T-I/SS (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature Range, Serial Interfaces, Mounting Type, ADC.
PIC16F737-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F737-E/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F767-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F737T-I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F737-I/SP
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F737T-I/SS Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC16 mid-range 8-bit RISC |
| Program Memory (FLASH) | 7 KB (4K x 14 words) |
| Data RAM | 368 bytes |
| Maximum CPU Speed | 20 MHz (200 ns instruction cycle) |
| Operating Voltage (Vdd) | 2.0 V to 5.5 V |
| I/O Pins | 25 |
| ADC | 11 channels x 10-bit |
| Timers | 3 (Timer0, Timer1, Timer2) |
| Capture/Compare/PWM (CCP) | 3 modules |
| Enhanced USART | Yes, with LIN support |
| nanoWatt Power Management | Yes (Sleep, internal oscillator, dual-clock) |
| Hộp | 28-SSOP (5.30 mm body) |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Kiểu lắp đặt | Surface Mount (Tape & Reel) |
| Trạng thái RoHS | Compliant |
| Instruction Set | 35-word, PIC16C5X/PIC12CXXX/PIC16C7X compatible |
Cấu hình chân PIC16F737T-I/SS
| Chân 1 | MCLR/VPP/RA5 — Master Clear (reset) / ICSP programming voltage / GPIO RA5 |
| Chân 2 | RA0/AN0 — GPIO RA0 / Analog input channel 0 |
| Chân 3 | RA1/AN1 — GPIO RA1 / Analog input channel 1 |
| Chân 4 | RA2/AN2/VREF- — GPIO RA2 / Analog input channel 2 / ADC negative reference |
| Chân 5 | RA3/AN3/VREF+ — GPIO RA3 / Analog input channel 3 / ADC positive reference |
| Chân 6 | RA4/AN4/T0CKI — GPIO RA4 / Analog input channel 4 / Timer0 clock input |
| Chân 7 | RA5/AN5/SS/HLVDIN — GPIO RA5 / Analog input channel 5 / SPI slave select / High/Low-Voltage detect input |
| Chân 8 | VSS — Ground reference |
| Chân 9 | OSC1/CLKI/RA7 — Crystal/clock input or GPIO RA7 |
| Chân 10 | OSC2/CLKO/RA6 — Crystal output or GPIO RA6 |
| Chân 11 | RC0/T1OSO/T1CKI — GPIO RC0 / Timer1 oscillator output / Timer1 clock input |
| Chân 12 | RC1/T1OSI/CCP2 — GPIO RC1 / Timer1 oscillator input / CCP2 PWM output |
| Chân 13 | RC2/CCP1 — GPIO RC2 / CCP1 PWM output |
| Chân 14 | RC3/SCK/SCL — GPIO RC3 / SPI clock / I2C clock |
| Chân 15 | RC4/SDI/SDA — GPIO RC4 / SPI data in / I2C data |
| Chân 16 | RC5/SDO — GPIO RC5 / SPI data out |
| Chân 17 | RC6/TX/CK — GPIO RC6 / USART TX / USART clock |
| Chân 18 | RC7/RX/DT — GPIO RC7 / USART RX / USART data |
| Chân 19 | VSS — Ground reference |
| Chân 20 | VDD — Positive supply voltage (2.0-5.5V) |
| Chân 21 | RB0/INT0/CCP2 — GPIO RB0 / External interrupt 0 / CCP2 alt |
| Chân 22 | RB1/INT1 — GPIO RB1 / External interrupt 1 |
| Chân 23 | RB2/INT2 — GPIO RB2 / External interrupt 2 |
| Chân 24 | RB3/CCP3 — GPIO RB3 / CCP3 PWM output |
| Chân 25 | RB4 — GPIO RB4 |
| Chân 26 | RB5/PGM — GPIO RB5 / ICSP LVP programming enable |
| Chân 27 | RB6/PGC — GPIO RB6 / ICSP clock (ICSP debug clock input) |
| Chân 28 | RB7/PGD — GPIO RB7 / ICSP data |
Ứng dụng tiêu biểu
PIC16F737T-I/SS phù hợp cho 6 Áp dụngs: Consumer Appliance Control, Battery-Powered Sensor Transmitter, HVAC Fan / Pump Speed Controller, Industrial LED Lighting Controller, Automotive Interior Accessory (non-AEC), Educational and Hobby Embedded Projects.
Consumer Appliance Control
The PIC16F737T-I/SS suits appliance front-panel and sensor-hub controllers thanks to its 20 MHz core, 25 I/O, and 11 ADC channels that scan user inputs, temperature sensors, and current-sense signals. The 7 KB FLASH fits typical C-compiled state machines for washers, dishwashers, and microwave user interfaces, while nanoWatt Sleep keeps standby current below 1 uA to meet Energy Star ratings. The 28-SSOP footprint leaves room for an 8x16 segment LCD driver or relay outputs.
Được đề xuất
Battery-Powered Sensor Transmitter
PIC16F737T-I/SS paired with nanoWatt Sleep draws only micro-amps when idle, waking on WDT or external interrupts to take an ADC reading and transmit via Enhanced USART (LIN-capable). The 11-channel 10-bit ADC supports up to 8 single-ended sensor inputs plus battery-voltage monitoring, while 368 bytes RAM buffer small data frames. Operating from 2.0V to 5.5V allows direct connection to a single Li-ion cell or 3x AA pack without a boost converter.
Được đề xuất
HVAC Fan / Pump Speed Controller
Three hardware CCP/PWM modules on the PIC16F737T-I/SS drive brushless DC fan or triac-controlled AC pump speeds directly from timer interrupts without CPU overhead. The 11-channel 10-bit ADC samples NTC thermistors, current shunts, and tachometer feedback for closed-loop PI control, while Enhanced USART relays status to the master BMS. The 28-SSOP package provides thermal margin in enclosed control boxes and supports conformal coating for humid environments.
Được đề xuất
Industrial LED Lighting Controller
The PIC16F737T-I/SS produces three PWM channels for RGB or tunable-white LED drivers, while the 25 I/O connect to tactile buttons, capacitive touch pads, and DALI/0-10V analog dimming interfaces. The 11-channel ADC monitors driver temperature via NTC and LED string current, with cycle-by-cycle dimming resolution below 0.1%. The 7 KB FLASH accommodates CCT calibration tables, fade curves, and DALI-2 command parsing when compiled with XC8 standard optimization.
Được đề xuất
Automotive Interior Accessory (non-AEC)
Although not AEC-Q100 qualified, the PIC16F737T-I/SS handles interior cabin accessories such as seat controllers, ambient lighting nodes, and USB charger interfaces where -40C to +85C industrial range is acceptable. Enhanced USART with LIN support integrates into existing LIN bus backbones, and the 11 ADC channels scan potentiometers and rotary encoders. Designers targeting AEC-Q100 should select PIC16F153xx or PIC16F188xx AEC-Q100 derivatives instead.
Được đề xuất
Educational and Hobby Embedded Projects
The PIC16F737T-I/SS is a popular teaching device for embedded systems courses thanks to free MPLAB X IDE and XC8 toolchain support, a documented instruction set, and easy in-circuit programming via PICkit 4. The 28-SSOP hand-solders to breakout boards, 7 KB FLASH fits textbook assignments (interrupt-driven UART, ADC sampling, CCP PWM), and PIC16F737 datasheet family documentation covers PIC16F767/747/777 variants for cross-platform learning. It bridges hobbyist and industrial work.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F737T-I/SS — 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 | PIC16F737-I/SS | PIC16F737-E/SS | PIC16F767-I/SS |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP (5.30 mm) | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Program FLASH | 7 KB (4K x 14) | 7 KB | 7 KB | 8 KB |
| Data RAM | 368 bytes | 368 bytes | 368 bytes | 368 bytes |
| Max CPU Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| ADC Channels | 11 x 10-bit | 11 x 10-bit | 11 x 10-bit | 11 x 10-bit |
| Temperature Range | -40C to +85C (I) | -40C to +85C (I) | -40C to +125C (E) | -40C to +85C (I) |
| Packaging Format | Tape & Reel | Tube | Tube / T&R | Tube / T&R |
| Enhanced USART / LIN | Yes | Yes | Yes | Yes |
Bảo phân biệt quan trọng
- Versus PIC16F690: more memory and ADC channels in same SSOP-28 footprint (vsPIC16F690-I/SS)
- Versus PIC16F737-I/SS: tape-and-reel packaging for SMT production (vsPIC16F737-I/SS)
- Versus PIC16F767-I/SS: cost-down without losing pinout (vsPIC16F767-I/SS)
Ghi chú thiết kế
Place a 100 nF decoupling capacitor as close as possible to the Vdd pin (pin 20) and another 100 nF near pin 8 Vss to minimize supply-noise-induced ADC errors. Add a 10 uF bulk capacitor at the regulator output if the trace run exceeds 25 mm. The internal 8 MHz oscillator OSCTUNE register calibrates frequency to within 1% over -40C to +85C, but for UART baud rates above 38400 a 20 MHz external crystal is recommended.
MCLR (pin 1) must be pulled up to Vdd through a 10 kohm resistor for normal operation; floating MCLR causes spurious resets, especially in noisy motor-control environments. When ICSP low-voltage programming (LVP) is enabled via the LVP configuration bit, pin RB5 becomes PGM and cannot be used as a normal GPIO; clear the LVP bit if RB5 is required and program with high-voltage (12V on MCLR) instead. Read-modify-write on PORTB requires the 'shadow latch' pattern described in the datasheet or output glitches occur.
Keep analog traces (RA0-RA5) short and routed away from digital switching signals to minimize ADC crosstalk. Place the ADC reference capacitor (0.1 uF) directly on the VREF+ pin if used; otherwise connect VREF+ to Vdd and VREF- to Vss for default internal reference. The 28-SSOP exposed-pad is not present on this package, so thermal dissipation is via the 28 leads - adequate for typical <50 mA I/O loads but not high-current driver applications.
Thông tin tuân thủ
RoHS and lead-free per Microchip product page; not AEC-Q100 qualified (use PIC16F153xx or PIC16F188xx for automotive).
