PIC16C622A-40/SS - 8-Bit CMOS OTP MCU, 3.5KB, 40MHz | Microchip
MPN: PIC16C622A-40/SS ✓ פעילPIC16C622A-40/SS סקירה
A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory, working RAM, and integrated peripherals such as comparators, timers, and I/O ports. The PIC16C622A belongs to the mid-range PICmicro family and uses a Harvard architecture with separate program and data buses, providing deterministic instruction timing that simplifies real-time control design. OTP MCUs sit in the product hierarchy as: PIC16C62x series -> mid-range PICmicro -> 8-bit PIC MCU -> microcontroller -> semiconductor.
Key features of the PIC16C622A include two on-chip analog comparators with programmable reference voltage, a 16-bit timer/counter (TMR1), an 8-bit timer/counter (TMR0) with programmable prescaler, a Watchdog Timer with its own on-chip RC oscillator, and Power-on Reset / Brown-out Reset circuitry. The two comparators enable direct interface with analog signals without an external op-amp, making the part well-suited to sensor-conditioning and threshold-detection front ends.
Architecturally, the PIC16C622A implements a 14-bit instruction word and a separate 8-bit data path. The OTP program memory is programmed once and cannot be erased, so this part is intended for volume production rather than prototyping (where Flash-based PIC16F equivalents are preferred). The SSOP-20 footprint also supports industrial temperature operation (-40C to +85C) under the -40 speed grade suffix used here.
Typical applications include consumer appliance control, IR remote receivers, battery chargers, smoke detectors, and simple sensor interface modules. The 13 I/O pins and two comparators allow direct connection to a PIR sensor, thermistor, or photocell without external glue logic.
When designing with the PIC16C622A, ensure your programmer supports the OTP variant (MPLAB PM3 or equivalent) and that the supply decoupling network uses a 100 nF ceramic capacitor placed within 5 mm of VDD. The two comparator outputs can be routed to an interrupt-on-change pin for low-power wake-up duty cycles.
This page synthesizes distributor pricing, parametric alternatives, and pin-compatible OTP substitutes not consolidated on any single manufacturer page, including a direct side-by-side with the Flash-based PIC16F equivalents that simplify prototyping.
חלופות תחליף ישיר עבור PIC16C622A-40/SS — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם PIC16C622A-40/SS (אותו גורם צורה וטביעת רגל) — שונים ב Program Memory Size, Data EEPROM, Operating Temperature Range, Program Memory Type, Watchdog Timer.
PIC16C622A-04/SS
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16C622A-20/SS
✅ Drop-In📋 חלופה להתייחסות (לא בקטלוג)
PIC16C622A-20E/SS
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16C622-04/SS
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16C622-20/SS
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16C622-20E/SS
✅ Drop-Inצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16C622A-40/SS דירוגים מרביים ומאפיינים חשמליים
| Core Architecture | 8-bit PIC mid-range (Harvard) |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 3.5 KB (2048 words x 14-bit) |
| RAM | 128 bytes |
| Data EEPROM | 0 bytes |
| תדר שעון מקסימלי | 40 MHz |
| Instruction Cycle Time | 100 ns |
| Number of I/O Pins | 13 |
| Number of Comparators | 2 |
| ADC | None |
| SPI / I2C / UART | 0 / 0 / 0 |
| Timers | TMR0 (8-bit) + TMR1 (16-bit) |
| Operating Voltage Range | 2.5 V to 5.5 V |
| טווח טמפרטורת פעולה | -40 C to +85 C (industrial) |
| מארז | 20-pin SSOP (5.30 mm body) |
| סוג הרכבה | Surface Mount |
| מספר פינים | 20 |
תצורת פינים של PIC16C622A-40/SS
| פין 1 | RA2/AN2/CVREF — GPIO RA2 / analog input 2 / comparator voltage reference output |
| פין 2 | RA3/AN3/C1OUT — GPIO RA3 / analog input 3 / comparator 1 output |
| פין 3 | RA4/T0CKI/C2OUT — GPIO RA4 / TMR0 clock input / comparator 2 output |
| פין 4 | MCLR — Master Clear reset input (active low) |
| פין 5 | VSS — Ground reference |
| פין 6 | RB0/INT — GPIO RB0 / external interrupt input |
| פין 7 | RB1 — GPIO RB1 |
| פין 8 | RB2 — GPIO RB2 |
| פין 9 | RB3 — GPIO RB3 |
| פין 10 | RB4 — GPIO RB4 |
| פין 11 | RB5 — GPIO RB5 |
| פין 12 | RB6 — GPIO RB6 |
| פין 13 | RB7 — GPIO RB7 |
| פין 14 | VDD — Positive supply (2.5V to 5.5V) |
| פין 15 | OSC2/CLKOUT — Oscillator output / clock output |
| פין 16 | OSC1/CLKIN — Oscillator input / external clock input |
| פין 17 | RA0/AN0 — GPIO RA0 / analog input 0 |
| פין 18 | RA1/AN1 — GPIO RA1 / analog input 1 |
| פין 19 | RA5 — GPIO RA5 |
| פין 20 | RA6/OSC2 — GPIO RA6 / alternate oscillator output |
יישומים טיפוסיים
PIC16C622A-40/SS מתאים עבור 6 יישוםs: PIR Motion Sensor Front-End, IR Remote Control Receiver, Battery Charger Controller, Smoke Detector Signal Processor, Appliance Control Board, Automotive Interior Sensor Module.
PIR Motion Sensor Front-End
The PIC16C622A-40/SS is well suited to PIR motion sensor front-ends because the two on-chip analog comparators can directly amplify the low-frequency output of a dual-element PIR sensor without external op-amps. The 100 ns instruction cycle supports real-time threshold detection and pulse-counting algorithms in firmware, while the 13 I/O pins drive an LED indicator, relay output, and alarm interface. The 40 MHz clock ensures motion events are processed within 200 us, enabling sub-second response to occupancy changes in security and lighting-control products.
מומלץ
IR Remote Control Receiver
The PIC16C622A-40/SS fits IR remote control receiver designs because the interrupt-on-change capability on RB0/INT allows the part to wake from sleep on the first carrier pulse from an IR photodiode preamplifier. With 3.5 KB of OTP, firmware can store multiple protocol decoders (NEC, RC5, Sony) and the 40 MHz clock decodes 38 kHz carrier bursts in real time. Power consumption is reduced by sleeping between transmissions, ideal for battery-powered remote handsets and set-top box controllers.
מומלץ
Battery Charger Controller
The PIC16C622A-40/SS works as a charger controller for NiMH and lead-acid battery packs because the two comparators can monitor pack voltage and charge current against thresholds set by the internal voltage reference. The 13 I/O pins drive MOSFET gate drivers, status LEDs, and a temperature-sense input via the TMR1 input capture. The OTP memory locks in the charge algorithm, eliminating risk of firmware tampering in production and reducing per-unit cost versus Flash-based alternatives.
מומלץ
Smoke Detector Signal Processor
The PIC16C622A-40/SS handles smoke detector signal processing because its two comparators can interface directly with an ionization chamber or photoelectric smoke sensor, providing threshold detection and pulse-pattern analysis. The Watchdog Timer with dedicated RC oscillator ensures the detector recovers from any firmware fault, a regulatory requirement for life-safety products. With 13 I/O pins, the same MCU drives a piezo buzzer, status LED, interconnect line, and low-battery warning, fitting a complete smoke alarm in one SSOP-20 part.
מומלץ
Appliance Control Board
The PIC16C622A-40/SS fits washing machine, dishwasher, and microwave oven control boards because its 13 I/O pins handle keypad scanning, seven-segment display driving, relay control, and triac firing. The 100 ns instruction cycle executes state-machine logic for wash cycles or cooking profiles, while OTP memory locks the firmware to prevent field modification. Industrial temperature range (-40C to +85C) supports the thermal environment inside appliance enclosures where ambient can exceed 60C during operation.
מומלץ
Automotive Interior Sensor Module
The PIC16C622A-40/SS is applicable to automotive interior sensor modules such as dashboard light sensors, rain sensors, and humidity detectors because the two comparators handle analog signal conditioning and the 13 I/O pins communicate via LIN or simple PWM to the body controller. OTP memory prevents unauthorized firmware modification, important for OEM validation. The part is qualified to Microchip's industrial-grade (-40C to +85C) standard; for under-hood or AEC-Q100 requirements, migrate to PIC16F or PIC18 automotive variants instead.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC16C622A-40/SS — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | PIC16C622A-04/SS | PIC16C622A-20/SS | PIC16C622-04/SS | PIC16C622-20/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SSOP | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same |
| Maximum Clock Frequency | 40 MHz | 4 MHz | 20 MHz | 4 MHz | 20 MHz |
| Program Memory Type | OTP (3.5 KB) | OTP (3.5 KB) - same | OTP (3.5 KB) - same | OTP (3.5 KB) - same | OTP (3.5 KB) - same |
| RAM | 128 bytes | 128 bytes - same | 128 bytes - same | 128 bytes - same | 128 bytes - same |
| Number of I/O Pins | 13 | 13 - same | 13 - same | 13 - same | 13 - same |
| Comparators | 2 | 2 - same | 2 - same | 2 - same | 2 - same |
| Operating Voltage Range | 2.5 V to 5.5 V | 2.5 V to 5.5 V - same | 2.5 V to 5.5 V - same | 2.5 V to 5.5 V - same | 2.5 V to 5.5 V - same |
| Silicon Revision | A | A - same | A - same | Non-A | Non-A |
| Pin Compatibility | Reference | Drop-in (slower clock) | Drop-in (slower clock) | Drop-in (older silicon) | Drop-in (older silicon) |
מבדילים עיקריים
- Highest speed grade in the PIC16C622A family (לעומתPIC16C622A-20/SS)
- Two integrated analog comparators reduce external component count (לעומתPIC16F690-I/SS)
- OTP memory prevents firmware reverse-engineering in production (לעומתPIC16F622-I/SS)
הערות תכנון
Estimated: at VDD=5V and active clock at 40 MHz, the PIC16C622A typically draws 8-15 mA depending on I/O loading and peripheral activity. Place a 100 nF ceramic decoupling capacitor within 5 mm of VDD (pin 14) and a 10 uF bulk capacitor near the regulator output. For sleep-mode designs, supply current drops below 1 uA, making battery operation feasible if the firmware parks the CPU between sensor events.
For designs that target the 40 MHz rating of the PIC16C622A-40/SS, use a fundamental-mode crystal or ceramic resonator with load capacitors sized per the manufacturer's CL specification. A typical 10 MHz crystal with 15 pF caps gives reliable start-up; for EMI-sensitive applications, route the oscillator traces short and symmetric, guarded by a ground ring. If clock accuracy is not critical, the internal RC oscillator option frees two pins but limits frequency to 4 MHz.
Common design pitfalls with the PIC16C622A-40/SS include forgetting the MCLR pull-up resistor (10 kOhm to VDD is standard), leaving ICSP pins RB6/RB7 without isolation from application circuitry (which can prevent in-circuit programming), and exceeding the OTP write endurance by attempting to reprogram - the memory is one-time only. Always program a known-good firmware image using MPLAB PM3 before sealing the production board.
SSOP-20 has a 0.65 mm pin pitch, requiring careful PCB land pattern design with non-solder-mask-defined pads to prevent tombstoning during reflow. Stencil aperture should be approximately 80% of the pad area to control solder paste deposition. Hand-soldering the SSOP-20 is feasible with a fine tip and flux but production volumes should use reflow or selective soldering for reliability.
מידע על תאימות
RoHS status, lead-free, and halogen-free information not explicitly provided in the verified web data. The part uses OTP memory and is intended for industrial-grade applications (-40C to +85C). For automotive AEC-Q100 requirements, migrate to PIC16F or PIC18 automotive-qualified equivalents.
