PIC16C622A-20E/P - 3.5KB OTP 8-bit MCU, 18-DIP | Microchip
N.º de pieza: PIC16C622A-20E/P ✗ Fin de vida| Cant. | Precio unitario | Total |
|---|---|---|
| 1 | $1.69 | $1,69 |
| 10 | $1.55 | $15,50 |
| 100 | $1.42 | $142,00 |
| 500 | $1.32 | $660,00 |
| 1.000 | $1.28 | $1.280,00 |
PIC16C622A-20E/P Descripción general
A PIC (Peripheral Interface Controller) microcontroller is a Harvard-architecture RISC processor with separate program and data buses, optimized for deterministic real-time embedded control. The PIC16C622A belongs to the mid-range PIC14-instruction family, uses a 14-bit instruction word, and integrates analog peripherals including a comparator module and a capture/compare/PWM (CCP) block that simplifies closed-loop control. In the wider taxonomy it sits as: PIC16C622A -> PIC16C62x family -> PIC16 mid-range -> PICmicro 8-bit MCU -> embedded microcontroller -> semiconductor. The OTP EPROM cell enables fast prototype-to-production migration for cost-sensitive and automotive applications.
Key features include 3.5KB OTP program memory, 128 bytes of data RAM, 13 digital I/O pins, an integrated analog comparator, a 16-bit timer/counter with capture/compare/PWM, an 8-bit timer/counter, a 5-channel 8-bit ADC, and a watchdog timer with its own on-chip RC oscillator. Power-managed Sleep mode and a hardware Universal Synchronous/Asynchronous Receiver/Transmitter (USART/SCI) round out the peripheral set. Compared with the earlier PIC16C622, the "A" silicon revision improves brown-out behaviour and ESD robustness.
Architecturally the device uses a 14-bit instruction word, two-cycle instruction execution for branches and a four-cycle oscillator start-up from Power-on Reset. Its low-power CMOS design draws only microampere-level Sleep currents while preserving full register retention, making it a strong fit for battery-backed and automotive applications where quiescent draw matters.
Typical applications include automotive body controllers and instrument clusters, HVAC fan control, appliance user-interface panels, low-end security keypads, and remote sensor transmitter nodes. The wide -40C to +125C automotive temperature range makes it particularly well-suited to under-hood and dashboard electronics that must survive harsh thermal environments.
When designing with the PIC16C622A-20E/P, place a 100 nF decoupling capacitor within 5 mm of VDD and reserve the ICSP programming footprint even on production boards - OTP parts must be programmed once, and in-system programming access greatly simplifies rework. Be aware that OTP cannot be erased, so design firmware carefully before committing to volume programming.
Alternativas directas para PIC16C622A-20E/P — 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 PIC16C622A-20E/P (mismo factor de forma y huella) — difiere en Package, Program Memory Size, Operating Temperature, Timers, Program Memory Type.
Herramienta de comparación rápida — seleccione piezas alternativas para compararlas lado a lado:
PIC16C622A-20I/P
✅ Sustitución directa✓ En stock
$2.1 / unidad
Ver hoja de datos →PIC16C622A-04E/P
✅ Sustitución directa✓ En stock
$1.3 / unidad
Ver hoja de datos →PIC16C621A-20E/P
✅ Sustitución directa ⚠️ Especificaciones sin verificar📋 Alternativa de referencia (no en el catálogo)
PIC16F628A-I/P
✅ Sustitución directa✓ En stock
$1.62 / unidad
Ver hoja de datos →PIC16F88-I/P
✅ Sustitución directa✓ En stock
$2.61 / unidad
Ver hoja de datos →PIC16C622-20E/SS
✅ Sustitución directa✓ En stock
$2.49 / unidad
Ver hoja de datos →PIC16C622A-20E/P Valores máximos y características eléctricas
| Device Family | PIC16C62x (PIC16C622A) |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 3.5 KB (2K x 14) |
| Data RAM | 128 bytes |
| Data EEPROM | Not present (OTP device) |
| CPU Architecture | 8-bit RISC, 14-bit instruction word |
| Frecuencia de reloj máxima | 20 MHz |
| Operating Voltage (VDD) | 5 V |
| I/O Pins | 13 |
| ADC | 5-channel, 8-bit |
| Timers | 1 x 16-bit Timer1, 1 x 8-bit Timer0, WDT |
| Capture/Compare/PWM | 1 CCP module |
| Serial Interface | USART/SCI (SCI = Synchronous/Asynchronous) |
| Analog Comparator | Yes (integrated) |
| Encapsulado | 18-pin PDIP (0.300 in, 7.62 mm) |
| Tipo de montaje | Through-Hole |
| Temperature Grade | Automotive (-40C to +125C) |
| Estado RoHS | Non-compliant (contains Pb, OTP legacy) |
Configuración de pines de PIC16C622A-20E/P
| Pin 1 | RA2 — Port A bit 2 (digital I/O or analog input AN2) |
| Pin 2 | RA3 — Port A bit 3 (digital I/O or analog input AN3) |
| Pin 3 | RA4 — Port A bit 4 (digital I/O or analog comparator output) |
| Pin 4 | MCLR/VPP — Master Clear reset (active low) / programming voltage input |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RB0/INT — Port B bit 0 / external interrupt input |
| Pin 7 | RB1 — Port B bit 1 (digital I/O) |
| Pin 8 | RB2 — Port B bit 2 (digital I/O) |
| Pin 9 | RB3 — Port B bit 3 (digital I/O or CCP1 output) |
| Pin 10 | RB4 — Port B bit 4 (digital I/O, interrupt-on-change) |
| Pin 11 | RB5 — Port B bit 5 (digital I/O, interrupt-on-change) |
| Pin 12 | RB6 — Port B bit 6 (digital I/O, interrupt-on-change, ICSP clock) |
| Pin 13 | RB7 — Port B bit 7 (digital I/O, interrupt-on-change, ICSP data) |
| Pin 14 | VDD — Positive supply (5 V typical) |
| Pin 15 | RC6/TX/CK — Port C bit 6 / USART TX or synchronous clock |
| Pin 16 | RC7/RX/DT — Port C bit 7 / USART RX or synchronous data |
| Pin 17 | OSC2/CLKOUT — Oscillator output / clock-out |
| Pin 18 | OSC1/CLKIN — Oscillator input / external clock in |
Aplicaciones típicas
PIC16C622A-20E/P es adecuado para 7 aplicacións: Automotive Body Control Modules, HVAC Fan and Blower Speed Controllers, Appliance User-Interface Panels, Low-End Security Keypad and Access Controllers, Remote Sensor Transmitter Nodes, Industrial Counter and Pulse Metering, Educational and Hobbyist Robotics.
Automotive Body Control Modules
The PIC16C622A-20E/P's automotive temperature grade (-40C to +125C) and 5-channel 8-bit ADC make it a strong fit for distributed body controllers such as seat-position memories, mirror actuators, and lighting dimmers. Its 13 I/O pins handle multiplexed keypad scanning and PWM-driven lamp control through the 16-bit Timer1 capture/compare/PWM module. With 20 MHz and 5 MIPS throughput it can run closed-loop PID for HVAC blend doors or stepper-based mirror adjustment. The wide operating voltage range tolerates cranking transients up to 5.5 V and run-down events down to 4.5 V on the 12 V automotive bus when paired with a simple LDO. The integrated analog comparator enables zero-crossing detection for AC-coupled signals like blower tach feedback.
Recomendado
HVAC Fan and Blower Speed Controllers
Closed-loop blower control benefits from the PIC16C622A-20E/P's 16-bit Timer1 capture input for tach feedback and its 5-channel 8-bit ADC for sensing temperature and pressure. The CCP module generates the PWM gate drive for a TRIAC or power-MOSFET in the fan bridge, while the analog comparator implements zero-cross detection for synchronous dimming. The 3.5 KB OTP memory easily fits state-machine blower-control firmware, and the -40C to +125C range survives under-hood thermal stress. Up to 20 MHz clock lets the control loop sample at several kHz, well above the audible range. The USART/SCI enables daisy-chaining multiple fan nodes onto a single LIN or UART bus for zoned climate control.
Recomendado
Appliance User-Interface Panels
Front-panel button decoding and LED/LCD drive for white-goods appliances is a natural application for the PIC16C622A-20E/P. The 13 I/O pins support 4x4 keypad matrices plus a 7-segment or character LCD through bit-banged I/O or external shift registers. Sleep-mode current drops to microampere levels when no buttons are pressed, preserving standby power budgets for Energy Star-rated appliances. The 5 V operation matches legacy indicator LED and relay coil rails, while the wide temp range survives the inside-cabinet thermal envelope of ovens, dishwashers, and washing machines. OTP memory locks the firmware against reverse engineering of the appliance control panel.
Recomendado
Low-End Security Keypad and Access Controllers
Standalone PIN-keypad door locks and access controllers rely on the PIC16C622A-20E/P's RISC core and OTP memory for tamper-resistant code storage. The 3.5 KB OTP memory holds the lock-state machine and credential store, while the USART/SCI talks to a peripheral RFID reader or Wiegand keypad. The analog comparator detects door-sensor switches and tamper switches with hardware debounce. Power-on Reset and watchdog timer recover from brown-out and code-stall conditions, essential for unattended locks. The automotive temperature grade supports outdoor keypad installations and unheated warehouse doors.
Recomendado
Remote Sensor Transmitter Nodes
Battery-powered sensor nodes such as remote thermostats, irrigation moisture sensors, and industrial level sensors benefit from the PIC16C622A-20E/P's Sleep mode and small code footprint. The 5-channel 8-bit ADC reads thermistor, photocell, or soil-moisture probes, while the analog comparator performs threshold-based wakeup without consuming ADC power. The 13 I/O drive low-power radios or LoRa/ISM transmitters through bit-banged SPI. The automotive -40C to +125C temperature range is overkill for indoor sensors but valuable for outdoor weather stations and agricultural deployments.
Recomendado
Industrial Counter and Pulse Metering
Pulse-counting instruments such as flow meters, energy meters, and event counters use the PIC16C622A-20E/P's 16-bit Timer1 capture input to time-stamp incoming pulses with sub-microsecond resolution. The 5-channel ADC simultaneously monitors supply voltage and analog front-end signals, while the USART/SCI exports billing data to an upstream concentrator. The -40C to +125C grade supports outdoor metering cabinets and factory-floor installations. OTP memory locks the calibration coefficients, preventing post-deployment tampering with billing firmware - a regulatory requirement in many metering jurisdictions.
Recomendado
Educational and Hobbyist Robotics
Low-cost educational robotics kits leverage the PIC16C622A-20E/P's through-hole PDIP-18 package for breadboard-friendly prototyping and easy hand-soldering in classroom labs. The 13 I/O drive hobby servos, LEDs, and DC motors via simple drivers, while the 16-bit Timer1 generates accurate PWM for servo control. The CCP module enables hobby-grade closed-loop motor speed control. Students learn Harvard-architecture assembly and C programming on a forgiving, well-documented part with abundant Microchip application notes. The automotive temp grade ensures robust behaviour during lab mishaps and outdoor field demonstrations.
Recomendado
Resumen de productos recomendados
Datos de referencia de ingeniería para PIC16C622A-20E/P — comparación, orientación de diseño e información de cumplimiento.
Guía de selección
Comparación con alternativas
| Parámetro | Este producto | PIC16C622A-20I/P | PIC16C622A-04E/P | PIC16C621A-20E/P | PIC16F628A-I/P | PIC16F88-I/P | PIC16C622-20E/SS |
|---|---|---|---|---|---|---|---|
| Package | 18-pin PDIP (0.300 in) | 18-pin PDIP (0.300 in) - same | 18-pin PDIP (0.300 in) - same | 18-pin PDIP (0.300 in) - same | 18-pin PDIP (0.300 in) - same | 18-pin PDIP (0.300 in) - same | 18-pin PDIP (0.300 in) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory Type | 3.5 KB OTP EPROM | 3.5 KB OTP EPROM | 3.5 KB OTP EPROM | 2K x 14 OTP | 3.5 KB Flash | 7 KB Flash | 3.5 KB OTP EPROM |
| Maximum Clock Frequency | 20 MHz | 20 MHz | 4 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| RAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 224 bytes | 368 bytes | 128 bytes |
| I/O Pins | 13 | 13 | 13 | 13 | 16 | 16 | 13 |
| ADC Resolution | 8-bit, 5 channels | 8-bit, 5 channels | 8-bit, 5 channels | None (no ADC on PIC16C621A) | None (no ADC on F628A) | 10-bit, 7 channels | 8-bit, 5 channels |
| Operating Voltage | 5 V (4.5 V to 5.5 V) | 5 V | 5 V | 5 V | 2.0 V to 5.5 V (wider) | 2.0 V to 5.5 V (wider) | 5 V |
| Temperature Grade | Automotive (-40C to +125C) | Industrial (-40C to +85C) | Automotive (-40C to +125C) | Automotive (-40C to +125C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Automotive (-40C to +125C) |
| Lifecycle Status | NRND | NRND | NRND | NRND | Active | Active | NRND |
Diferenciadores clave
- Wider automotive temperature range than Flash-based upgrade (frente a PIC16F628A-I/P)
- Integrated 5-channel 8-bit ADC, lost on Flash upgrade (frente a PIC16F628A-I/P)
- Same OTP silicon at lower clock for power-sensitive applications (frente a PIC16C622A-04E/P)
- Peripheral completeness over cost-reduced sibling (frente a PIC16C621A-20E/P)
Notas de diseño
Place a 100 nF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 14), tied to VSS (pin 5). Estimated: the OTP PIC16C622A draws 2 mA active at 20 MHz / 5 V, dropping to < 1 uA in Sleep mode, so a single small ceramic is sufficient. Add a bulk 10 uF tantalum at the board supply entry for transient robustness in automotive cranking environments. The wide input-voltage tolerance allows direct 5 V regulation from an LDO such as MCP1700-3302E.
OTP memory cannot be electrically erased, so firmware must be fully debugged before volume programming. Always reserve the ICSP footprint (RB6/ICSPCLK, RB7/ICSPDAT, MCLR/VPP) on production boards even though OTP programming is one-shot. Brown-out at < 4.0 V may cause memory corruption if BOR is not enabled in the configuration word. For automotive designs, add an external MCP130T voltage supervisor for deterministic reset behaviour.
The PDIP-18 package has a thermal resistance of approximately 85 C/W (theta_JA), but the PIC16C622A typically dissipates < 100 mW in 8-bit embedded use. Estimated: at 5 V and 20 MHz the supply current is roughly 2 mA, so internal dissipation is around 10 mW - a 0.85 C temperature rise at 25 C ambient, which is negligible. No heatsink required.
Route the oscillator traces (OSC1/OSC2) short and symmetric, keep them away from analog comparator inputs to avoid crosstalk. Place the analog comparator reference near the MCU with a small RC filter to dampen switch-mode noise from adjacent power electronics. If using the ADC, place a 10 uF + 100 nF cap pair at AVdd; on PIC16C622A this maps to VDD/VSS - reserve separate analog/digital supply traces if board noise is a problem.
Información de cumplimiento
PIC16C622A-20E/P is in legacy PDIP-18 with Pb-bearing terminations; not RoHS-compliant per Microchip datasheet package material declaration. AEC-Q100 not formally qualified (automotive temperature grade but legacy OTP family pre-dates AEC-Q100). REACH compliance per Microchip product declaration.
