PIC16F87T-E/ML - 8-bit PIC MCU 20MHz 7KB Flash | Microchip
MPN: PIC16F87T-E/ML ✓ Hoạt độngPIC16F87T-E/ML Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU, non-volatile program memory, RAM, EEPROM, timers, serial peripherals, and digital I/O on one die. The PIC architecture uses a RISC (Reduced Instruction Set Computer) Harvard-style design where program and data buses are separate, allowing simultaneous instruction fetch and data access. Within Microchip's portfolio, PIC16 sits between PIC10/12/14 (lower pin count) and PIC18 (higher performance, 16-bit wide instructions), targeting battery-powered and cost-sensitive embedded applications through low-power NanoWatt sleep modes.
Key features include 35 single-word instructions that simplify coding, hardware USART, MSSP for SPI/I2C, capture/compare/PWM modules, 256 bytes of EEPROM, two 8-bit timers plus one 16-bit timer, a 10-bit multi-channel ADC, nano-power sleep current, and an internal oscillator option that eliminates the external crystal in many designs. The 28-QFN exposed pad lowers thermal resistance and enables compact board layouts for sensor hubs, white-goods controls, and handheld instruments.
Typical applications include consumer white goods, low-end remote controls, sensor signal conditioning, battery-powered instrumentation, and small industrial control nodes where deterministic real-time response and low sleep current matter more than raw CPU throughput.
When designing with this part, prioritize single-rail 5 V supplies with decoupling capacitors of at least 0.1uF adjacent to every VDD pin. For in-circuit serial programming (ICSP) leave the ICSP pins accessible; leaving MCLR unbonded is a common PCB layout mistake that blocks in-field firmware updates. This page consolidates distributor pricing, drop-in VQFN-28 alternatives, and practical design notes not found in the manufacturer datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC16F87T-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 PIC16F87T-E/ML (cùng hình factor và footprint) — khác nhau ở Package, Internal Oscillator, Operating Temperature, Mounting Type, ADC.
PIC16F87-I/ML
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F87-E/ML
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F88-I/ML
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F87T-E/ML Tỷ lệ tối đa & tính chất điện
| Core Processor | PIC |
| Core Size | 8-bit |
| Core Architecture | RISC |
| Program Memory Size | 7 KB (4K x 14 words) FLASH |
| EEPROM Size | 256 bytes |
| Maximum CPU Speed | 20 MHz |
| Instruction Execution Time | 200 ns |
| Number of Instructions | 35 single-word instructions |
| Nhiệt độ hoạt động | -40C to +125C (extended) |
| Hộp / Vỏ | 28-VQFN Exposed Pad |
| Supplier Device Package | 28-QFN (6 x 6 mm) |
| Kiểu lắp đặt | Surface Mount |
| Supplied Form | Tape & Reel (TR) |
| Peripherals | Brown-out Detect/Reset, PWM, WDT |
| Connectivity | I2C, SPI, UART/USART |
| ADC | 10-bit |
| Technology | NanoWatt low-power |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16F87T-E/ML
| Chân 1 | MCLR/VPP/RE3 — Master Clear (reset) / ICSP programming voltage / port E bit 3 |
| Chân 2 | RA0/AN0 — PORTA bit 0 / analog channel 0 |
| Chân 3 | RA1/AN1 — PORTA bit 1 / analog channel 1 |
| Chân 4 | RA2/AN2/CVREF — PORTA bit 2 / analog channel 2 / comparator voltage reference |
| Chân 5 | RA3/AN3/VREF+ — PORTA bit 3 / analog channel 3 / ADC voltage reference plus |
| Chân 6 | RA4/T0CKI/C1OUT — PORTA bit 4 / Timer0 clock input / comparator 1 output |
| Chân 7 | RA5/AN4/SS/C2OUT — PORTA bit 5 / analog channel 4 / SPI slave select / comparator 2 output |
| Chân 8 | VSS — Ground reference |
| Chân 9 | OSC1/CLKIN/RA7 — Oscillator input / external clock in / PORTA bit 7 |
| Chân 10 | OSC2/CLKOUT/RA6 — Oscillator output / clock out / PORTA bit 6 |
| Chân 11 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| Chân 12 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / Capture-Compare-PWM 2 |
| Chân 13 | RC2/CCP1 — PORTC bit 2 / Capture-Compare-PWM 1 |
| Chân 14 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Chân 15 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Chân 16 | RC5/SDO — PORTC bit 5 / SPI data out |
| Chân 17 | RC6/TX/CK — PORTC bit 6 / USART async transmit / USART sync clock |
| Chân 18 | RC7/RX/DT — PORTC bit 7 / USART async receive / USART sync data |
| Chân 19 | VSS — Ground reference |
| Chân 20 | VDD — Positive supply voltage |
| Chân 21 | RB0/INT — PORTB bit 0 / external interrupt |
| Chân 22 | RB1 — PORTB bit 1 |
| Chân 23 | RB2 — PORTB bit 2 |
| Chân 24 | RB3/PGM — PORTB bit 3 / ICSP LVP programming |
| Chân 25 | RB4 — PORTB bit 4 |
| Chân 26 | RB5 — PORTB bit 5 |
| Chân 27 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Chân 28 | RB7/PGD — PORTB bit 7 / ICSP data |
Ứng dụng tiêu biểu
PIC16F87T-E/ML phù hợp cho 6 Áp dụngs: Consumer White Goods Control, Handheld Battery Sensor Hub, Industrial Sensor Signal Conditioning, Low-end IR Remote Control, Automotive Interior LED Driver, PIC-based Educational / Hobbyist Projects.
Consumer White Goods Control
The PIC16F87T-E/ML suits microwave, washing-machine, and dishwasher control boards where deterministic 8-bit RISC response, PWM, and a 10-bit ADC drive TRIAC-driven loads and temperature probes. Its 7 KB flash and 256-byte EEPROM cover the typical 5-10 KB state-machine code base for user-interface handling and sensor reads; NanoWatt sleep below 1 uA lets standby power stay compliant with energy-star targets while the 28-QFN package fits compact mainboards.
Được đề xuất
Handheld Battery Sensor Hub
The PIC16F87T-E/ML is well suited to battery-powered sensor pods (gas detectors, BLE beacon front-ends, HVAC thermostats) where 20 MHz PicoC compute and sub-1 uA sleep current dominate BOM cost. Its internal oscillator removes the external crystal, the 28-QFN exposed pad lands cleanly on a 25 mm coin-cell carrier, and the integrated 10-bit ADC plus UART/SPI/I2C peripherals stream data to a companion radio SoC with minimal firmware overhead.
Được đề xuất
Industrial Sensor Signal Conditioning
For 4-20 mA loop transmitters, resistive-bridge conditioning, and low-side switch IO, the PIC16F87T-E/ML's 10-bit ADC, PWM, and E-grade (-40C to +125C) industrial temperature qualification combine to deliver reliable measurements in factory-floor enclosures. The 35-instruction PIC16 RISC ISA keeps latency under one PWM period for closed-loop control, and the 28-QFN exposed pad keeps junction temperatures below 100C at 20 MHz full-load operation.
Được đề xuất
Low-end IR Remote Control
In IR/RF remote controllers and wall switches, the PIC16F87T-E/ML handles button scanning, IR encoding, and battery-voltage telemetry with enough MIPS for protocols such as RC5, NEC, and proprietary OOK modulations. The 7 KB flash stores lookup tables for multi-vendor consumer-TV codes; sleep-current drawn in single-digit microamps lets a single CR2032 cell survive 5+ years of typical use.
Được đề xuất
Automotive Interior LED Driver
Ambient-lighting, vanity-mirror backlight, and rear-cargo lamp LED drivers benefit from the PIC16F87T-E/ML's E-grade temperature range, integrated PWM channels, and compact QFN-28 footprint. Linear or buck current regulation with on-chip PWM (8- or 16-bit resolution) drives LED strings at 100 mA per channel with smooth dimming; the EEPROM stores calibration constants for off-the-shelf LED bin variation.
Được đề xuất
PIC-based Educational / Hobbyist Projects
The PIC16F87T-E/ML maps well to maker and university labs that teach 8-bit MCU fundamentals with MPLAB X and XC8 compilers. The 28-QFN exposes enough peripherals (USART, MSSP, PWM, ADC) for full curricula, and the QFN package rewards students on fine-pitch soldering practice; the same silicon with PIC16F88 firmware demonstrates upgrade paths without changing the development board footprint.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16F87T-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 | PIC16F87-I/ML | PIC16F87-E/ML | PIC16F88-I/ML |
|---|---|---|---|---|
| Package | 28-QFN EP (6x6 mm) | 28-QFN EP (6x6 mm) - same | 28-QFN EP (6x6 mm) - same | 28-QFN EP (6x6 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core | 8-bit PIC RISC | 8-bit PIC RISC | 8-bit PIC RISC | 8-bit PIC RISC |
| Max CPU Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Flash Memory | 7 KB (4K x 14) | 7 KB (4K x 14) | 7 KB (4K x 14) | 8 KB (4K x 14) - +14% |
| Temperature Grade | Extended -40C to +125C (E) | Industrial -40C to +85C (I) - lower +40C upper limit | Extended -40C to +125C (E) | Industrial -40C to +85C (I) - lower +40C upper limit |
| EEPROM | 256 bytes | 256 bytes | 256 bytes | 256 bytes |
| Supplied Form | Tape & Reel (TR) | Tube | Tube | Tube |
Bảo phân biệt quan trọng
- Same die and footprint as PIC16F87 family with industrial E temperature grade (vsPIC16F87-I/ML)
- Tape-and-reel packaging suited to high-volume assembly (vsPIC16F87-E/ML)
- More RAM and peripheral features available from sibling PIC16F88 in same package (vsPIC16F88-I/ML)
Ghi chú thiết kế
Decouple every VDD pin of the PIC16F87T-E/ML with a 0.1 uF ceramic capacitor placed within 5 mm of the pin; add a single 10 uF bulk capacitor at the board entry. Operate the MCU within the datasheet-specified VDD range; values outside the spec can trigger undefined brown-out behaviour and EEPROM write errors. For battery-powered designs, route the MCU into Sleep mode with all peripherals disabled to reach the NanoWatt-level idle current published by Microchip.
Solder the exposed thermal pad of the 28-QFN to a generous copper pour. Estimated: with 6 x 6 mm QFN and a 1 oz copper pour on top/bottom layers with vias, theta_JA is on the order of 30-40 C/W. At +125C ambient and 20 MHz full-load operation, that gives a 20-40C temperature rise above ambient, keeping the junction below the datasheet maximum with no additional heatsink.
Do not accidentally configure the I2C and SPI pins for the wrong alternate function before the firmware disables the analog-mode register (ANSEL on newer revisions). Leaving MCLR floating causes intermittent resets; tie it to VDD through a 10 kohm resistor with a 100 nF cap if RC reset is desired, or tie it directly to VDD for always-on operation. Always reserve the ICSP pins (PGC/PGD) on test points or unpopulated headers so firmware can be updated without reworking the PCB.
Thông tin tuân thủ
RoHS/REACH compliant per Microchip product page; not AEC-Q100 qualified - see AEC-Q100-grade PIC16 variants or external supervisory devices for automotive functional-safety applications.
