PIC16C622AT-04/SO - 8-Bit 4MHz OTP MCU 3.5KB 18-SOIC | Microchip
MPN: PIC16C622AT-04/SO ✓ فعالPIC16C622AT-04/SO جائزہ
A microcontroller (MCU) is a single-chip computer that combines a CPU, memory (program + data), and peripherals on one silicon die, intended to control electronic systems through firmware. The PIC16C622A belongs to the mid-range PICmicro taxonomy (8-bit MCU -> microcontroller -> embedded controller -> semiconductor) and historically served as the workhorse of industrial, appliance, and consumer control applications before Flash-based PIC16F parts replaced most OTP variants. The PIC16C622A also integrates a dual analog comparator module (the namesake feature of the '622 family), 8-bit timer/counter, watchdog timer, and a power-saving SLEEP mode.
Key features of the PIC16C622AT-04/SO include 25 mA source/sink per I/O, 4 MHz maximum oscillator frequency (4 MHz internal RC option not available on this part), 2.5V to 5.5V operating voltage, and the OTP program memory windowed on the 'A' die. Wide-voltage-range design supports both 3.3V and 5V rails, and is the reason this part continues to ship into industrial controllers and brown-good retrofit upgrade loops. The 18-SOIC (0.295-inch / 7.50mm width) package is the wide-body variant offering wider lead pitch for hand-soldering and through-hole-style process windows.
Typical applications include remote transmitters, security-system peripherals, appliance controllers, automotive subsystems (non-safety), and simple sensor signal conditioning. The 13 I/O, dual analog comparator, and 4 MHz CPU throughput provide enough headroom to replace discrete logic or 4-bit controllers while keeping BOM cost low. Designers frequently migrate from PIC16C620/PIC16C621 in the same family to PIC16C622 when they need more RAM and program memory.
When designing with this device, place a 0.1uF decoupling capacitor as close as possible to VDD (pin 14) and connect MCLR (pin 4) through a 10k pull-up resistor to VDD for normal operation. OTP memory can only be programmed once, so pre-production verification via PIC16C622A-04/SO (windowed) or PIC16C622A-04/JW (UV-erasable) prototypes is the standard development workflow.
کے لیے ڈراپ اِن متبادل PIC16C622AT-04/SO — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں PIC16C622AT-04/SO (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Program Memory Size, Instruction Set, Core Architecture, Core Processor.
PIC16C622A-04/SO
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C622AT-04I/SO
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C622AT-04E/SO
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C621AT-04/SO
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C620AT-04/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F628A-I/SO
✅ ڈراپ-اِن✗ اسٹاک سے باہر
$2.32 / یونٹ
ڈیٹا شیٹ دیکھیں →PIC16F627A-I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C622AT-04/SO زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Processor | PIC |
| Core Size | 8-Bit |
| Series | PIC16C |
| Program Memory Size | 3.5 KB (2K x 14) OTP |
| RAM Size | 128 x 8 bytes |
| زیادہ سے زیادہ کلاک فریکوئنسی | 4 MHz |
| Number of I/O | 13 |
| Operating Voltage | 2.5 V to 5.5 V |
| پیکیج / کیس | 18-SOIC (0.295", 7.50 mm width) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| Program Memory Type | OTP (One-Time Programmable) EPROM |
| آپریٹنگ درجہ حرارت | 0 C to +70 C |
| Peripherals | Brown-out Detect, Watchdog Timer, 2x Analog Comparator |
PIC16C622AT-04/SO پن کنفیگریشن
| پن 1 | RA2 — Bidirectional I/O port A bit 2 / analog comparator input |
| پن 2 | RA3 — Bidirectional I/O port A bit 3 / analog comparator input |
| پن 3 | RA4/T0CKI — Bidirectional I/O port A bit 4 / Timer0 clock input (open-drain) |
| پن 4 | MCLR — Master Clear (reset) input, active-low, requires external pull-up |
| پن 5 | VSS — Ground reference |
| پن 6 | RB0/INT — Bidirectional I/O port B bit 0 / external interrupt input |
| پن 7 | RB1 — Bidirectional I/O port B bit 1 |
| پن 8 | RB2 — Bidirectional I/O port B bit 2 |
| پن 9 | RB3 — Bidirectional I/O port B bit 3 |
| پن 10 | RB4 — Bidirectional I/O port B bit 4 (interrupt-on-change) |
| پن 11 | RB5 — Bidirectional I/O port B bit 5 (interrupt-on-change) |
| پن 12 | RB7 — Bidirectional I/O port B bit 7 (ICSP data) |
| پن 13 | RB6 — Bidirectional I/O port B bit 6 (ICSP clock) |
| پن 14 | VDD — Positive supply voltage (+2.5V to +5.5V) |
| پن 15 | OSC2/CLKOUT — Oscillator crystal output / clock output (Fosc/4) |
| پن 16 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| پن 17 | RA0 — Bidirectional I/O port A bit 0 |
| پن 18 | RA1 — Bidirectional I/O port A bit 1 |
عام استعمالات
PIC16C622AT-04/SO کے لیے موزوں ہے 7 ایپلیکیشنs: IR Remote Control Transmitter, Appliance Controller Board, Security System Sensor Interface, Automotive Accessory Controller (Non-Safety), Industrial Sensor Signal Conditioner, Consumer Toy and Hobby Electronics, Smart Meter and Energy Monitor Peripherals.
IR Remote Control Transmitter
The PIC16C622AT-04/SO's 3.5KB OTP program memory, 4 MHz throughput, and 13 digital I/O pins make it a strong choice for handheld IR remote transmitters. The 2.5V-5.5V operating voltage allows direct battery operation from two alkaline cells (3V nominal) without a boost regulator, extending battery life. The internal SLEEP mode draws less than 1uA, and the 4 MHz execution speed easily handles 38 kHz / 40 kHz / 56 kHz carrier generation with software PWM. Recommended products include the Microchip PIC16C621A family for cost-down derivatives.
تجویز کردہ
Appliance Controller Board
The PIC16C622AT-04/SO is widely used in white-goods and appliance control boards (washing machines, microwave ovens, dishwashers) where its 13 I/O pins drive relays, triacs, and 7-segment LED displays while the dual analog comparator monitors temperature sensors and water-level probes. The 4 MHz CPU executes control loops at 1 ms resolution, easily managing PID-style temperature regulation, and the OTP memory prevents firmware tampering in production. The 0C-70C commercial temperature range covers most indoor appliance environments.
تجویز کردہ
Security System Sensor Interface
The PIC16C622AT-04/SO is well-suited for PIR motion sensor interfaces, glass-break detectors, and door/window contact modules used in residential and commercial security systems. Its dual analog comparator detects low-level analog signals from PIR sensors and thermopile elements, while 13 I/O drive status LEDs, piezo buzzers, and reed-switch inputs. The 128-byte RAM supports rolling-code transmission buffers, and the OTP memory prevents code extraction from field-deployed security hardware - reducing reverse-engineering risk.
تجویز کردہ
Automotive Accessory Controller (Non-Safety)
Non-safety automotive accessories such as ambient lighting controllers, seat-heater switch panels, and aftermarket alarm systems frequently use PIC16C622AT-04/SO. The 18-SOIC wide-body package handles automotive thermal cycling, while the 25 mA I/O source/sink directly drives small relays and LED indicators without buffer transistors. For under-hood or extreme-temperature applications, designers migrate to the PIC16C622AT-04I/SO industrial-grade (-40C to +85C) variant for guaranteed cold-start behavior.
تجویز کردہ
Industrial Sensor Signal Conditioner
The PIC16C622AT-04/SO conditions analog signals from industrial sensors (load cells, thermistors, photodiodes) by using the dual analog comparator for threshold detection and software-implemented sigma-delta conversion via the comparator and timer0. The 4 MHz throughput allows oversampling at 1 kHz while still servicing serial communication to a host controller. The OTP memory locks the calibration coefficients in production, preventing field tampering and reducing calibration drift. Wide 2.5V-5.5V supply tolerates industrial 24V/5V regulated rails.
تجویز کردہ
Consumer Toy and Hobby Electronics
The PIC16C622AT-04/SO drives hobby robotics, RC receivers, model-train controllers, and educational electronics kits where its low cost (sub-$1.20 at 100 pieces) and simple 35-instruction RISC architecture accelerate learning. The 18-SOIC wide-body package is hand-solderable, making it friendly to hobbyist assembly without specialized tools. The PICkit 3 programmer supports in-circuit serial programming (ICSP) through the RB6/RB7 pins, allowing beginners to prototype without removing the chip. The PIC16C621A-04/SO is the recommended cost-down derivative for toy applications requiring <1KB code.
تجویز کردہ
Smart Meter and Energy Monitor Peripherals
The PIC16C622AT-04/SO is deployed as a peripheral controller in single-phase smart electricity meters, gas-meter AMR modules, and water-meter pulse counters. Its dual analog comparator monitors the metrology front-end for tamper detection (magnetic interference, reversed polarity), while the 13 I/O drive LCD segment controllers or LED pulse indicators. The OTP memory prevents code modification by end users, supporting utility-grade security requirements. The 2.5V-5.5V supply range matches single-cell Li-coin-battery backup rails.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16C622AT-04/SO — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16C622A-04/SO | PIC16C622AT-04I/SO | PIC16C622AT-04E/SO | PIC16C621AT-04/SO | PIC16C620AT-04/SO | PIC16F628A-I/SO | PIC16F627A-I/SO |
|---|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-SOIC (0.295") | 18-SOIC (0.295") | 18-SOIC (0.295") | 18-SOIC (0.295") | 18-SOIC (0.295") | 18-SOIC (0.295") | 18-SOIC (0.295") | 18-SOIC (0.295") |
| Program Memory | 3.5KB (2K x 14) OTP | 3.5KB OTP (same) | 3.5KB OTP (same) | 3.5KB OTP (same) | 1KB OTP | 0.5KB OTP | 3.5KB Flash | 1.75KB Flash |
| RAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 80 bytes | 80 bytes | 224 bytes | 128 bytes |
| Max Clock Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz | 20 MHz |
| Temperature Range | 0C to +70C (Commercial) | 0C to +70C | -40C to +85C (Industrial) | -40C to +125C (Extended) | 0C to +70C | 0C to +70C | -40C to +85C | -40C to +85C |
| Memory Type | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM | Flash (reprogrammable) | Flash (reprogrammable) |
| Analog Comparators | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
اہم امتیازی خصوصیات
- Higher program memory than PIC16C621A within the same family (بمقابلہPIC16C621AT-04/SO)
- Migration-friendly to Flash-based successor PIC16F628A (بمقابلہPIC16F628A-I/SO)
- Lower cost than PIC16F628A Flash variant (بمقابلہPIC16F628A-I/SO)
ڈیزائن نوٹس
Place a 0.1uF ceramic decoupling capacitor as close as possible to the VDD pin (pin 14), with the capacitor ground lead returning directly to the VSS pin (pin 5) via a wide PCB trace. For designs with noisy digital loads or relay switching near the MCU, add a 10uF bulk tantalum or aluminum electrolytic capacitor on the VDD rail within 25 mm of the IC. The PIC16C622AT-04/SO draws approximately 2-5 mA active at 4 MHz / 5V and <1uA in SLEEP mode.
Use the 18-SOIC wide-body (7.50 mm width) footprint with 1.27 mm pitch, providing 0.4 mm lead width - large enough for hand-soldering and for wave-solder profiles that comply with lead-free reflow at 260C peak. Keep the crystal or resonator traces (OSC1/OSC2, pins 15-16) short and surrounded by a ground guard ring to minimize EMI pickup. Route MCLR (pin 4) trace away from RB6/RB7 ICSP lines to prevent reset glitches during in-circuit programming.
Do not assume OTP parts can be reprogrammed: once the PIC16C622AT-04/SO's program memory is written, the part cannot be erased (OTP = one-time programmable). For development, use the windowed PIC16C622A-04/JW (ceramic DIP, UV-erasable) or the PIC16F628A Flash equivalent. Also verify the CONFIG word (oscillator selection, watchdog enable, code protection) before bulk programming - incorrect CONFIG settings can brick the entire production batch.
Estimated: at 4 MHz / 5V with all 13 I/O sourcing 25 mA, worst-case power dissipation is approximately 5V x 5 mA active + 13 x 25 mA x 0.4V drop = ~155 mW. The 18-SOIC package has a theta_JA of approximately 75 C/W (estimated from package geometry, verify with Microchip package thermal data), giving junction-to-ambient rise of ~12C above ambient at full load. No heatsink required, but ensure adequate PCB copper area for heat spreading.
تعمیل کی معلومات
RoHS/REACH/lead-free/halogen-free status for PIC16C622AT-04/SO requires confirmation against current Microchip material declaration sheets - the 18-SOIC family was originally released in leaded and lead-free variants, both of which remain orderable. AEC-Q100 not applicable to non-automotive-grade commercial parts (use PIC16C622AT-04I/SO for industrial environments). Microchip publishes Conflict Minerals Reporting Template (CMRT) and is DRC-compliant.