PIC16F872T-I/SO - 8-Bit 20MHz 3.5KB FLASH MCU | Microchip
Teilenummer: PIC16F872T-I/SO ✓ Aktiv| Menge | Stückpreis | Gesamt |
|---|---|---|
| 1 | $4.2 | $4,20 |
| 10 | $3.85 | $38,50 |
| 100 | $3.4 | $340,00 |
| 500 | $2.95 | $1.475,00 |
| 1.000 | $2.55 | $2.550,00 |
PIC16F872T-I/SO Übersicht
An 8-bit microcontroller (MCU) is a small, self-contained computer-on-a-chip that combines a CPU, non-volatile program memory, volatile data memory, and programmable I/O peripherals on a single silicon die. The PIC16F872 belongs to Microchip's mid-range PIC16 enhanced family, sitting between the baseline PIC10/12/16 devices and the higher-end PIC18 family. It is designed for embedded control tasks where deterministic instruction execution, low power consumption, and small code footprint matter more than raw CPU throughput.
Key features of the PIC16F872T-I/SO include 22 digital I/O pins, 5 channels of 10-bit ADC for analog sensing, nanoWatt technology power management, an ICD (In-Circuit Debugger) interface, and self-programming support. The 200 ns instruction cycle gives 5 MIPS throughput, while the 35 single-word instruction RISC architecture simplifies code generation and learning curves. The wide 4.0V to 5.5V supply range aligns with 5V system buses.
The architecture is a Harvard-style 8-bit RISC core with separate program FLASH and data RAM buses, allowing simultaneous instruction fetch and data access. The 14-bit instruction word provides a compact opcode space suitable for the 35-instruction set, while 10-bit ADC resolution delivers 1024-step conversion accuracy adequate for sensor monitoring. nanoWatt Technology provides dynamic power reduction through sleep modes, oscillator switching, and selective peripheral shutdown.
Typical applications include industrial sensor conditioning, white-goods and appliance controllers, automotive body and lighting subsystems, low-end HVAC thermostats, security keypad panels, and remote control / consumer electronics where the 5V-tolerant I/O and 10-bit ADC simplify analog front-end design.
When designing with the PIC16F872, ensure the supply rail is decoupled with 100 nF ceramic capacitors close to VDD/SS pins, and reserve an MCLR pull-up network. Use the ICD interface for boundary-scan-free in-circuit programming, and verify ADC acquisition time against source impedance. The PIC16F872T-I/SO is pin-compatible with the PIC16F873/874 family in the same SOIC-28 footprint, enabling future upgrades without PCB rework.
Drop-in-Alternativen für PIC16F872T-I/SO – gleiches Gehäuse, Pin-kompatibel. Bauteile mit anderem Gehäuse, die eine PCB-Überarbeitung erfordern, sind ausgeschlossen.
Varianten dieser Serie
Modelle derselben Serie, die drop-in-kompatibel sind mit PIC16F872T-I/SO (gleiche Bauform und Footprint) – abweichend in Package, ADC, Timers, Core Architecture, Operating Temperature.
Schnellvergleichstool – Wählen Sie Alternativbauteile für den Direktvergleich:
PIC16F872-I/SO
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC16F872T-I/SS
✅ Drop-In✓ Auf Lager
$2.69 / Stück
Datenblatt ansehen →PIC16F873A-I/SO
✅ Drop-In✓ Auf Lager
$2.65 / Stück
Datenblatt ansehen →PIC16F873-I/SO
✅ Drop-In📋 Referenzalternative (nicht im Katalog)
PIC16F882-I/SO
✅ Drop-In✓ Auf Lager
$1.48 / Stück
Datenblatt ansehen →PIC16F72T-I/SO
✅ Drop-In✓ Auf Lager
$2.32 / Stück
Datenblatt ansehen →PIC16F73-I/SO
✅ Drop-In✓ Auf Lager
$2.45 / Stück
Datenblatt ansehen →PIC16F872T-I/SO Grenzwerte & elektrische Eigenschaften
| Series | PIC® 16F |
| Core Processor | PIC |
| Core Size | 8-Bit |
| Core Architecture | RISC (Harvard) |
| Instruction Set | 35 single-word instructions |
| Instruction Execution Time | 200 ns (at 20 MHz) |
| Maximum Clock Speed | 20 MHz |
| Program Memory (FLASH) | 3.5 KB (2K x 14 words) |
| Data Memory (RAM) | 128 bytes |
| EEPROM Data Memory | 64 bytes |
| I/O Pins | 22 |
| ADC | 10-bit, 5 channels |
| Supply Voltage Range | 4.0 V to 5.5 V |
| Betriebstemperatur | -40 C to +85 C (Industrial) |
| Gehäuse | 28-SOIC (Wide, 0.300 inch) |
| Montageart | Surface Mount |
| Packaging | Tape & Reel ('T' suffix) |
| Power-Saving Features | nanoWatt Technology |
| Self-Programming | Yes |
| In-Circuit Debug | ICD support |
| Throughput | 5 MIPS |
PIC16F872T-I/SO Pin-Konfiguration
| Pin 1 | RA0/AN0 — Digital I/O / Analog input channel 0 |
| Pin 2 | RA1/AN1 — Digital I/O / Analog input channel 1 |
| Pin 3 | RA2/AN2/Vref- — Digital I/O / Analog input 2 / ADC negative reference |
| Pin 4 | RA3/AN3/Vref+ — Digital I/O / Analog input 3 / ADC positive reference |
| Pin 5 | RA4/T0CKI — Digital I/O / Timer0 external clock input |
| Pin 6 | RA5/AN4/SS — Digital I/O / Analog input 4 / SPI slave select |
| Pin 7 | RA6/OSC2/CLKOUT — Digital I/O / Oscillator output / Clock out |
| Pin 8 | RA7/OSC1/CLKIN — Digital I/O / Oscillator input / Clock in |
| Pin 9 | RE3/MCLR/Vpp — Digital input / Master clear reset / Programming voltage |
| Pin 10 | VSS — Ground reference |
| Pin 11 | VDD — Positive supply voltage (4.0V to 5.5V) |
| Pin 12 | RB0/INT — Digital I/O / External interrupt |
| Pin 13 | RB1 — Digital I/O |
| Pin 14 | RB2 — Digital I/O |
| Pin 15 | RB3/PGM — Digital I/O / Low-voltage programming |
| Pin 16 | RB4 — Digital I/O / Interrupt-on-change |
| Pin 17 | RB5 — Digital I/O / Interrupt-on-change |
| Pin 18 | RB6/ICCK — Digital I/O / ICD clock (debug) |
| Pin 19 | RB7/ICDT — Digital I/O / ICD data (debug) |
| Pin 20 | VSS — Ground reference |
| Pin 21 | RC0 — Digital I/O / Timer1 oscillator output |
| Pin 22 | RC1 — Digital I/O / CCP2 |
| Pin 23 | RC2/CCP1 — Digital I/O / Capture/Compare/PWM 1 |
| Pin 24 | RC3 — Digital I/O |
| Pin 25 | RC4 — Digital I/O |
| Pin 26 | RC5 — Digital I/O |
| Pin 27 | RC6 — Digital I/O |
| Pin 28 | RC7 — Digital I/O |
Typische Anwendungen
PIC16F872T-I/SO ist geeignet für 6 Anwendungs: Industrial Sensor Conditioning and Monitoring, White-Goods and Appliance Controllers, HVAC Thermostat and Climate Control, Security Keypad and Access Panels, Automotive Body and Lighting Controllers, Consumer Remote Controls and IR Transmitters.
Industrial Sensor Conditioning and Monitoring
The PIC16F872T-I/SO is well suited to industrial sensor conditioning thanks to its 5 channels of 10-bit ADC, 22 digital I/O pins, and 4.0V to 5.5V supply tolerance. The 10-bit resolution yields 1024 quantization steps, adequate for thermistor, RTD, or potentiometer front-ends, while the 22 I/Os handle multiplexed sensor switching, relay drivers, and status LEDs. nanoWatt Technology allows battery-backed sensor nodes to sleep at microamp currents between measurements. A typical circuit places the PIC16F872 at the heart of a 4-20 mA loop-powered transmitter or vibration monitor, with the ADC sampling the bridge signal and the I/O driving the loop current. Per Microchip datasheet DS30221C, the 5 MIPS throughput comfortably executes FIR filters and linearization algorithms at 100 Hz sample rates.
Empfohlen
White-Goods and Appliance Controllers
Appliance controllers demand 5V-tolerant I/O, low cost, and reliable operation across wide temperature ranges, all of which the PIC16F872T-I/SO delivers in a 28-SOIC industrial-temperature package. The 3.5 KB FLASH accommodates simple state machines for washers, dishwashers, and microwave ovens, while 22 I/Os drive keypads, 7-segment displays, triac gates, and buzzer feedback. The 5 channels of 10-bit ADC monitor motor current, water temperature, and humidity sensors. nanoWatt Technology reduces standby power to meet energy-star idle budgets. According to the Microchip PIC16F872 datasheet, the 200 ns instruction cycle is sufficient for triac zero-cross detection and PID heater control without external logic.
Empfohlen
HVAC Thermostat and Climate Control
HVAC thermostats require deterministic control loops, multi-channel analog sensing, and reliable EEPROM-backed parameter storage, all native to the PIC16F872T-I/SO. The 64-byte EEPROM stores setpoints and schedule data without external memory, while the 5 ADC channels read room temperature, humidity, setpoint dial, and supply rail for diagnostics. The 5 MIPS throughput executes PID loops at sub-second update rates for smooth compressor staging. The industrial temperature range (-40C to +85C) handles unconditioned equipment closets. Per Microchip datasheet DS30221C, the ICD interface simplifies field firmware updates for HVAC installers.
Empfohlen
Security Keypad and Access Panels
Security keypad panels benefit from the PIC16F872T-I/SO's 22 I/O pins for matrix scanning of 4x4 or 5x5 keypads, EEPROM-backed credential storage, and ICD-enabled field provisioning. The 3.5 KB FLASH supports AES-style rolling-code algorithms for wireless keyfobs, while the 10-bit ADC supervises tamper switches and battery voltage. The 5V-tolerant I/O simplifies direct drive of piezo buzzers and LED indicators without level shifters. According to the Microchip datasheet, the nanoWatt sleep modes extend battery backup life to multiple years on coin cells during AC power loss.
Empfohlen
Automotive Body and Lighting Controllers
Although not AEC-Q100 qualified, the PIC16F872T-I/SO is widely used in non-safety automotive body controllers such as interior lighting, mirror adjusters, and seat-position memory modules. The 22 I/O pins drive MOSFET half-bridges for lighting loads, while the 10-bit ADC monitors current-sense resistors for short-circuit detection. The 5V-tolerant I/O interfaces directly to automotive 12V-bus tolerant signal chains. Per Microchip datasheet DS30221C, the 200 ns instruction cycle is fast enough for PWM dimming at 1 kHz update rates with 256 dimming steps across multiple LED strings.
Empfohlen
Consumer Remote Controls and IR Transmitters
The PIC16F872T-I/SO is a strong fit for universal remote controls, IR/RF transmitters, and consumer handheld devices thanks to its low cost, 5 MIPS throughput, and 22 I/O pins for button matrix scanning. The 10-bit ADC reads battery voltage and joystick position, while the 35-instruction RISC core encodes RC5/RC6/SIRC protocols with sub-microsecond timing accuracy. nanoWat sleep modes extend battery life beyond 1 year on typical AAA cells. Per Microchip datasheet, the wide 4.0V to 5.5V supply range tolerates fresh and depleted alkaline batteries without regulator redesign.
Empfohlen
Zusammenfassung der empfohlenen Produkte
Technische Referenzdaten für PIC16F872T-I/SO – Vergleich, Designhinweise und Compliance-Informationen.
Auswahlhilfe
Vergleich mit Alternativen
| Parameter | Dieses Produkt | PIC16F872-I/SO | PIC16F873A-I/SO | PIC16F882-I/SO | PIC16F73-I/SO | PIC16F72T-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC | 28-SOIC (same) | 28-SOIC (same) | 28-SOIC (same) | 28-SOIC (same) | 28-SOIC (same) |
| Program FLASH | 3.5 KB (2K x 14) | 3.5 KB (same) | 7.2 KB (+106%) | 3.5 KB (same) | 7 KB (+100%) | 3.5 KB (same) |
| RAM | 128 bytes | 128 bytes (same) | 192 bytes (+50%) | 128 bytes (same) | 192 bytes (+50%) | 128 bytes (same) |
| Maximum Clock | 20 MHz | 20 MHz (same) | 20 MHz (same) | 20 MHz (same) | 20 MHz (same) | 20 MHz (same) |
| I/O Pins | 22 | 22 (same) | 22 (same) | 24 (+2) | 22 (same) | 22 (same) |
| ADC | 10-bit, 5 channels | 10-bit, 5 channels (same) | 10-bit, 5 channels (same) | 10-bit, 11 channels (+6) | 10-bit, 5 channels (same) | 8-bit, 5 channels (-2-bit) |
| Communications | None | None (same) | USART/SPI/I2C | USART/SPI/I2C + mTouch | USART/SPI/I2C | None (same) |
| Supply Voltage | 4.0V to 5.5V | 4.0V to 5.5V (same) | 2.0V to 5.5V (wider) | 2.0V to 5.5V (wider) | 4.0V to 5.5V (same) | 4.0V to 5.5V (same) |
Wichtigste Unterscheidungsmerkmale
- Industrial temperature range in 28-SOIC package (vs. PIC16F872T-I/SS)
- ICD-enabled with same FLASH budget (vs. PIC16F72T-I/SO)
- Cost-optimized for basic peripherals (vs. PIC16F873A-I/SO)
- Self-programming FLASH with EEPROM data memory (vs. PIC16F73-I/SO)
Designhinweise
Decouple VDD (pin 11) with a 100 nF ceramic capacitor placed within 5 mm of the pin, and add a 10 uF bulk capacitor at the supply entry point. The PIC16F872T-I/SO draws up to 25 mA at 20 MHz when all 22 I/Os source load, so verify the LDO or regulator can supply the peak transient demand. According to Microchip datasheet DS30221C, the device enters nanoWatt sleep at less than 1 uA when peripherals are disabled - ensure unused I/Os are configured as outputs low to minimize leakage.
Route the ICSP/ICD pins RB6/ICCK (pin 18) and RB7/ICDT (pin 19) to an in-circuit programming header with a 4.7 kohm pull-up on MCLR (pin 9). Per Microchip datasheet DS30221C, MCLR must be pulled high through a resistor; do not tie directly to VDD to allow ICD reset. Keep oscillator traces short - pin 7 (OSC2/CLKOUT) and pin 8 (OSC1/CLKIN) - and place the crystal or resonator within 5 mm with grounded guard traces for EMI suppression.
Do not exceed 5.5V on any I/O - the PIC16F872T-I/SO is not 5V-tolerant on I/O when VDD is below 5V. Always configure unused I/Os as outputs low (not inputs floating) to minimize current consumption. The ADC requires the acquisition time T_ACQ to settle; with a 10 kohm source impedance, T_ACQ must exceed 16 us per Microchip datasheet, so add an op-amp buffer when reading high-impedance sensors.
Place the PIC16F872 SOIC-28 with pin 1 oriented for easy probe access, and avoid routing high-current traces (e.g. motor drivers) directly under the IC. Connect the VSS pin (pin 20) directly to the ground plane with a via, not a long trace. For noise-sensitive ADC applications, isolate the analog AVdd/AVss rails from digital Vdd/Vss with a ferrite bead or pi-filter, as recommended in the Microchip PIC16F872 datasheet analog chapter.
Compliance-Informationen
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - not intended for automotive safety-critical applications.
