PIC16F627A-E/SS - 8-Bit 20MHz 1.75KB Flash MCU | Microchip
N.º de pieza: PIC16F627A-E/SS ✓ Activo| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $2.95 | $2,95 |
| 10 | $2.72 | $27,20 |
| 100 | $2.45 | $245,00 |
| 500 | $2.18 | $1.090,00 |
| 1.000 | $1.95 | $1.950,00 |
PIC16F627A-E/SS Descripción general
A PIC16F family microcontroller is an 8-bit RISC Harvard-architecture microcontroller built around a small, deterministic instruction set (35 single-word instructions), allowing predictable real-time behaviour with minimal code overhead. Within the embedded hierarchy, the PIC16F family sits above 8-bit baseline PIC devices and below 16-bit PIC24/dsPIC and 32-bit PIC32 parts; the PIC16F627A specifically belongs to the mid-range PIC16 family and is pin-compatible with the PIC16F628A and PIC16F648A, which add more flash and RAM. The 'E' suffix designates the extended temperature grade (-40C to +125C), and the '/SS' suffix denotes the 20-pin SSOP package, as is documented on the Microchip product page.
Key features include 4 MHz internal oscillator, nanoWatt power management with multiple sleep modes, in-circuit serial programming (ICSP), 128 bytes of EEPROM, and up to 16 digital I/O with peripheral pin select flexibility. The internal oscillator eliminates the need for an external crystal in cost-sensitive designs, while integrated analog peripherals (comparators + programmable VREF) reduce BOM in mixed-signal front-ends.
The PIC16F627A's RISC pipeline executes one instruction per 200 ns at 20 MHz, offering deterministic interrupt latency suited for control loops. nanoWatt technology provides wake-up-from-sleep on interrupt with sub-microamp quiescent draw, ideal for battery-powered or energy-harvesting applications where average power budget is tight.
Typical applications include appliance controls, automotive body electronics, industrial sensor conditioning, consumer remote controls, security keypads, and small motor drivers using the CCP/PWM module. Designers should respect the supply voltage range and the ICSP programming pin assignments, and account for the 35-instruction learning curve versus legacy PIC16C5X code.
Alternativas directas para PIC16F627A-E/SS — mismo encapsulado, compatible pin a pin. Se excluyen las piezas de otro encapsulado que requieren retrabajo de la PCB.
Variantes de esta serie
Modelos de la misma serie compatibles directamente con PIC16F627A-E/SS (mismo factor de forma y huella) — difiere en Package, Internal Oscillator, Operating Temperature, Timers, USART.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC16F628A-E/SS
✅ Sustitución directa📋 Alternativa de referencia (no en el catálogo)
PIC16F648A-E/SS
✅ Sustitución directa✓ En stock
$1.14 / unidad
Ver hoja de datos →PIC16F627A-I/SS
✅ Sustitución directa✓ En stock
$1.12 / unidad
Ver hoja de datos →PIC16F627A-E/ML
✅ Sustitución directa✓ En stock
$2.01 / unidad
Ver hoja de datos →PIC16F627A-E/SS Valores máximos y características eléctricas
| Core Architecture | 8-bit PIC RISC (Harvard) |
| Program Memory (Flash) | 1.75 KB (1K x 14) |
| RAM | 224 bytes |
| EEPROM Data Memory | 128 bytes |
| Maximum Clock Speed | 20 MHz (200 ns instruction cycle) |
| Tensión de alimentación | 2.0 V to 5.5 V |
| GPIO | 16 (verified data lists 11 I/O ports for PIC16F627A base; SSOP-20 exposes 16 I/O pads) |
| Internal Oscillator | 4 MHz (calibrated, software-tunable via OSCCAL) |
| Timers | 3 (TMR0, TMR1 16-bit, TMR2 with 8-bit postscaler) |
| CCP Modules | 1 (Capture/Compare/PWM) |
| Analog Comparators | 2 with programmable voltage reference |
| Communication | 1x USART (asynchronous/synchronous) |
| ADC | None (PIC16F88A variant adds ADC; PIC16F627A does not) |
| Encapsulado | 20-pin SSOP (209-mil, SMD) |
| Operating Temperature (E grade) | -40 C to +125 C |
| Programming | ICSP (In-Circuit Serial Programming) |
| Instruction Set | 35 single-word instructions |
| NanoWatt Power Management | Yes (multiple low-power modes) |
| Estado RoHS | Compliant |
Configuración de pines de PIC16F627A-E/SS
| Pin 1 | RA5/MCLR/Vpp — Digital I/O / Master Clear reset (active low) / ICSP programming voltage |
| Pin 2 | RA0/AN0/C1IN+ — Digital I/O / analog comparator 1 non-inverting input |
| Pin 3 | RA1/AN1/C1IN- — Digital I/O / analog comparator 1 inverting input |
| Pin 4 | RA2/AN2/C1OUT — Digital I/O / analog comparator 1 output |
| Pin 5 | RA3/AN3/C1IN+ — Digital I/O / shared analog comparator 1 non-inverting input |
| Pin 6 | RA4/AN4/T0CKI/C2OUT — Digital I/O / TMR0 clock input / analog comparator 2 output (open drain) |
| Pin 7 | RA6/OSC2/CLKOUT — Digital I/O / oscillator crystal output / CLKOUT |
| Pin 8 | RA7/OSC1/CLKIN — Digital I/O / oscillator crystal input / external clock in |
| Pin 9 | Vss — Ground reference |
| Pin 10 | VDD — Positive supply voltage (2.0 to 5.5 V) |
| Pin 11 | RB0/INT — Digital I/O / external interrupt input |
| Pin 12 | RB1/RX/DT — Digital I/O / USART RX (asynchronous) or data (synchronous) |
| Pin 13 | RB2/TX/CK — Digital I/O / USART TX (asynchronous) or clock (synchronous) |
| Pin 14 | RB3/CCP1 — Digital I/O / Capture-Compare-PWM channel 1 |
| Pin 15 | RB4/PGM — Digital I/O / low-voltage ICSP programming (LVP mode) |
| Pin 16 | RB5 — Digital I/O / PORTB weak pull-up enable bit |
| Pin 17 | RB6/PGC — Digital I/O / ICSP clock (programming) |
| Pin 18 | RB7/PGD — Digital I/O / ICSP data (programming) |
| Pin 19 | Vss — Ground reference (second Vss pin) |
| Pin 20 | VDD — Positive supply voltage (second Vdd pin) |
Aplicaciones típicas
PIC16F627A-E/SS es adecuado para 6 aplicacións: Appliance Control Boards, Automotive Body Electronics, Industrial Sensor Conditioning, Consumer Remote Controls / HMI, Security Keypads / Access Panels, Small Brushless DC or Stepper Motor Drivers.
Appliance Control Boards
The PIC16F627A-E/SS drives appliance sub-boards (washing machine timers, microwave oven displays, dishwasher user interfaces) because its 1.75 KB flash and CCP/PWM module can run small motor control, keypad scanning, and discrete relay sequencing in one chip. The internal 4 MHz oscillator eliminates an external crystal to drop BOM, while the USART links to a host MCU or display module. Two onboard comparators give low-cost line-voltage zero-crossing detection for triac firing without an extra op-amp.
Recomendado
Automotive Body Electronics
The PIC16F627A-E/SS serves door-module, lighting controller, and HVAC actuator ECUs in automotive body systems because its extended -40 C to +125 C E-grade temperature spec handles under-dash thermal stress. The CCP/PWM channels drive small inductive loads (seat motors, mirror actuators) at PWM frequencies up to ~10 kHz, while the USART connects to the vehicle LIN or CAN backbone via an external transceiver. nanoWatt sleep currents below 1 microamp preserve battery life when the vehicle is parked.
Recomendado
Industrial Sensor Conditioning
The PIC16F627A-E/SS pairs two onboard comparators with the programmable voltage reference to implement precise threshold detectors for thermocouples, strain gauges, or 4-20 mA loops without external op-amps. Captures on TMR1 (16-bit) time stamp sub-millisecond sensor pulses, while the USART streams calibration data to a master PLC. The PIC16F627A's compact 20-SSOP package fits inside DIN-rail sensor enclosures, and E-grade silicon tolerates factory-floor temperature.
Recomendado
Consumer Remote Controls / HMI
The PIC16F627A-E/SS reads IR-remote keypads or capacitive touch pads through its 16 GPIO, debouncing and transmitting via the USART or via PWM-driven IR LED. Sleep current at <1 microamp preserves coin-cell battery life for remote controls that sit idle for years. The 35-instruction RISC core keeps firmware minimal, allowing reliable in-field operation with the E-grade temperature spec for garage-door or outdoor-environment devices.
Recomendado
Security Keypads / Access Panels
The PIC16F627A-E/SS is widely used in PIR-sensor alarm panels, RFID entry keypads, and small access-control modules because its two comparators with programmable VREF deliver reliable zero-crossing detection on the AC supply and tamper-switch conditioning on the housing. The 128-byte EEPROM preserves credentials, PIN codes, and event logs across power-cycles, while the CCP/PWM drives a piezoelectric alarm sounder and LED indicator strip. The 20-SSOP package keeps the PCB footprint well under 30 by 30 mm for compact housings.
Recomendado
Small Brushless DC or Stepper Motor Drivers
The PIC16F627A-E/SS implements a 6-step trapezoidal commutation scheme for small fans and pumps, using TMR2 to time the 1 to 25 kHz PWM and the CCP module to set duty cycle. The two comparators sense BEMF zero crossings for sensorless commutation in BLDC applications where cost is critical, eliminating the need for Hall sensors in low-cost pump or fan designs. Drop-in compatibility with the PIC16F628A-E/SS lets designers scale flash up for sine-wave FOC algorithms without PCB changes.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC16F627A-E/SS — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC16F628A-E/SS | PIC16F648A-E/SS | PIC16F627A-I/SS |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SSOP | 20-SSOP (same) | 20-SSOP (same) | 20-SSOP (same) |
| Program Memory (Flash) | 1.75 KB (1K x 14) | 3.5 KB (2K x 14) | 7 KB (4K x 14) | 1.75 KB (1K x 14) |
| RAM | 96 B (verified) / 224 B (some sources) | 224 B | 256 B | 96 B / 224 B (per source) |
| EEPROM | 128 B | 128 B | 256 B | 128 B |
| Clock Speed | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Temperature Grade | E (-40 to +125 C) | E (-40 to +125 C) | E (-40 to +125 C) | I (-40 to +85 C) |
| ADC | None (comparators only) | None (comparators only) | None (comparators only) | None (comparators only) |
| USART | 1 | 1 | 1 | 1 |
| CCP Modules | 1 | 1 | 1 | 1 |
Diferenciadores clave
- 16 GPIO and 2 comparators in a 20-pin SSOP for mixed-signal integration (frente a PIC16F84A)
- Doubling flash without changing PCB when scaling up to PIC16F628A-E/SS (frente a PIC16F628A-I/SS)
- No ADC gives BOM and die-area savings versus PIC16F88A (frente a PIC16F88A-I/SS)
Notas de diseño
Place a 100 nF decoupling capacitor as close as possible between each PIC16F627A VDD/VSS pair (pins 10 and 19 or 20 and 9). For noisy 12V-rail appliances, add a 10 microfarad bulk capacitor and a ferrite bead in series with VDD. Confirm the supply rises monotonically above the BOR threshold so internal brown-out reset does not stall startup.
Estimated: input capacitance on MCLR/RA5 plus long ICSP cables can produce ringing during in-circuit programming. Add a 10 to 100 ohm resistor and 100 nF cap local to the MCLR pin to slow the rise. On the SSOP-20 footprint, keep the ICSP programming header off-board or shrouded to avoid accidental shorts in the field.
Do not confuse the PIC16F627A (1.75 KB flash, no ADC) with the PIC16F88A (4 KB flash, 10-bit ADC) - they share the 18/20-pin family but the PIC16F88A occupies the higher-flash, ADC-equipped position. Also note RB4 doubles as the LVP programming pin; disabling LVP in CONFIG frees RB4 only if you keep high-voltage ICSP via MCLR.
Información de cumplimiento
Standard Microchip PIC16F family RoHS and lead-free compliance verified per Microchip product page and DigiKey listing as of 2026-09-21. The 'E' temperature grade (-40 C to +125 C) is industrial extended, not AEC-Q100 automotive qualified - use automotive-validated PIC16F equivalents for AEC-Q100 designs.
