PIC16C620-04/SO - 8-Bit 4MHz CMOS MCU, 896B OTP, 13 I/O | Microchip
MPN: PIC16C620-04/SO ✓ فعالPIC16C620-04/SO جائزہ
A PIC microcontroller is a compact microcontroller unit (MCU) built on a Harvard-architecture Reduced Instruction Set Computer (RISC) core that integrates CPU, program memory, data RAM, and peripheral I/O on a single chip. PIC microcontrollers sit within the broader hierarchy of embedded processors -> microcontrollers -> 8-bit MCUs -> PIC16C family, and are widely used as the central controller in industrial, automotive, appliance, and consumer-electronic products. The PIC16C620 specifically belongs to Microchip's mid-range PIC16C5x/PIC16C6x lineage featuring OTP EPROM program memory, suitable for low-volume, cost-sensitive, or development-stage designs. An OTP device is programmed once and cannot be erased, which makes it ideal for fixed-function production units that do not require firmware updates.
Key features of the PIC16C620-04/SO include 80 bytes of data RAM, 13 digital I/O pins, a watchdog timer, an 8-bit timer/counter (TMR0), and a power-on reset (POR) circuit. The device supports a wide operating voltage range, allowing it to operate from low-voltage battery systems as well as standard 5 V rails. Compared to flash-based PIC16F successors, the OTP PIC16C620 offers lower per-unit cost at higher volumes, with no field-upgrade capability.
Typical applications for the PIC16C620-04/SO include low-cost remote control transmitters, small appliance controllers, security-system keypads, sensor-interface modules, and industrial timer modules. Designers transitioning legacy PIC16C620 designs to flash-based replacements typically migrate to PIC16F627A/628A/648A in the same 18-pin SOIC footprint for in-circuit re-programmability.
When designing with this part, remember that OTP memory cannot be re-programmed - any firmware change requires a new device. For prototypes and field-updateable production, consider a flash-based PIC16F6xxA in the same 18-SOIC footprint.
کے لیے ڈراپ اِن متبادل PIC16C620-04/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 PIC16C620-04/SO (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Timers, Operating Temperature Range, RoHS Status, RAM Size.
PIC16C620A-04/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C620-04I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C620T-04/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C620-04E/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C620A-04/P
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F627A-I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C620-04/SO زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Processor | PIC |
| Core Size | 8-Bit |
| Core Architecture | RISC (Harvard) |
| Speed (Max) | 4 MHz |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 896 B (512 x 14) |
| Data RAM | 80 B |
| Number of I/O Pins | 13 |
| پیکیج / کیس | 18-SOIC (SO) - 0.295" wide body, gull-wing |
| ماؤنٹنگ ٹائپ | Surface Mount |
| Operating Temperature (Commercial) | 0C to +70C |
| Operating Voltage Range | 3.0 V to 6.0 V (5 V typical) |
| Oscillator Type | External |
| Peripherals | Watchdog Timer (WDT), Power-on Reset (POR), TMR0 8-bit Timer/Counter, Brown-out Reset |
| Instruction Set | 35 single-word/single-cycle instructions |
| MSL لیول | 1 (unlimited) |
| RoHS اسٹیٹس | Non-compliant (contains Pb in OTP windowed variants); check lot |
PIC16C620-04/SO پن کنفیگریشن
| پن 1 | RA2 — Bidirectional I/O port A bit 2 |
| پن 2 | RA3 — Bidirectional I/O port A bit 3 |
| پن 3 | RA4/T0CKI — Bidirectional I/O port A bit 4 / TMR0 clock input |
| پن 4 | MCLR — Master Clear (reset) input, active low |
| پن 5 | VSS — Ground reference |
| پن 6 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| پن 7 | OSC2/CLKOUT — Oscillator crystal output / clock output (4 MHz at OSC1) |
| پن 8 | RC0 — Bidirectional I/O port C bit 0 |
| پن 9 | RC1 — Bidirectional I/O port C bit 1 |
| پن 10 | RC2 — Bidirectional I/O port C bit 2 |
| پن 11 | RC3 — Bidirectional I/O port C bit 3 |
| پن 12 | RC4 — Bidirectional I/O port C bit 4 |
| پن 13 | RC5 — Bidirectional I/O port C bit 5 |
| پن 14 | RC6 — Bidirectional I/O port C bit 6 |
| پن 15 | RC7 — Bidirectional I/O port C bit 7 |
| پن 16 | VDD — Positive supply (3.0 V to 6.0 V) |
| پن 17 | RA6 — Bidirectional I/O port A bit 6 |
| پن 18 | RA7 — Bidirectional I/O port A bit 7 |
عام استعمالات
PIC16C620-04/SO کے لیے موزوں ہے 6 ایپلیکیشنs: Remote Control Transmitter, Small Appliance Controller (Coffee Maker / Toaster), Security System Keypad / Access Control Panel, Sensor Interface Module (Temperature / Pressure), Industrial Timer / Counter Module, Battery-Powered Low-Cost Toys / Gadgets.
Remote Control Transmitter
The PIC16C620-04/SO fits remote control transmitters because its 4 MHz core delivers 1 MIPS, more than enough for IR carrier generation (typically 38-40 kHz), button-debounce scanning across a 4x4 keypad matrix using only 8 I/O pins, and small protocol-encoded command buffers. With 896 bytes of OTP the entire transmit state machine fits in a single device, eliminating external logic.
تجویز کردہ
Small Appliance Controller (Coffee Maker / Toaster)
The PIC16C620-04/SO is well-suited for small appliance control because its 13 I/O pins directly drive 7-segment LED indicators, relay coils for heater elements, and rotary encoder inputs without external mux logic. The 80-byte RAM handles timer counters for brew-cycle sequencing, and the 3.0-6.0 V supply range accepts unregulated DC from rectified mains without additional regulators.
تجویز کردہ
Security System Keypad / Access Control Panel
For keypad entry controllers, the PIC16C620-04/SO scans a 12-key matrix with 8 I/O pins using standard diode-isolation techniques, verifies a 4-6 digit PIN stored in OTP, and drives a magnetic-door strike relay. The 896B OTP stores encrypted PIN tables and protocol handlers for Wiegand-output readers. The industrial-grade PIC16C620-04I/SO variant extends the operating range for outdoor keypads.
تجویز کردہ
Sensor Interface Module (Temperature / Pressure)
Sensor-interface modules benefit from the PIC16C620-04/SO because its built-in TMR0 8-bit timer/counter handles interval timing for periodic sensor reads, while 13 I/O drive SPI or I2C peripherals to external sensors. The 80-byte RAM buffers up to ~20 12-bit ADC readings at 5 ms sample intervals. OTP memory stores calibration tables and linearization polynomials.
تجویز کردہ
Industrial Timer / Counter Module
The PIC16C620-04/SO is a strong fit for industrial timer modules because the 8-bit TMR0 combined with a 4 MHz instruction cycle delivers 1 us resolution, and the watchdog timer adds failsafe auto-reset on firmware lockup. The 18-SOIC package is small enough for DIN-rail-mount timer enclosures, and the 3.0-6.0 V supply accepts 5 V or 24 V (with regulator) industrial rails.
تجویز کردہ
Battery-Powered Low-Cost Toys / Gadgets
Battery-powered toys benefit from the PIC16C620-04/SO because the 3.0 V minimum supply operates directly from 2 AA cells (2.4-3.2 V), and the 5 mA typical operating current is acceptable for short-play sessions. The 4 MHz CPU drives simple PWM motor control and LED chase patterns with 896 bytes of OTP. For even lower quiescent current, the PIC16C620-04I/SO with brown-out reset extends battery runtime.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16C620-04/SO — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16C620A-04/SO | PIC16C620-04I/SO | PIC16C620T-04/SO | PIC16C620-04E/SO | PIC16F627A-I/SO |
|---|---|---|---|---|---|---|
| Package | 18-SOIC (SO) | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory Type | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM | Flash |
| Program Memory Size | 896 B (512 x 14) | 896 B | 896 B | 896 B | 896 B | 1.75 KB (flash) |
| Data RAM | 80 B | 80 B | 80 B | 80 B | 80 B | 224 B |
| Maximum Clock Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz |
| Number of I/O | 13 | 13 | 13 | 13 | 13 | 16 |
| Operating Temperature | 0C to +70C (Commercial) | 0C to +70C (Commercial) | -40C to +85C (Industrial) | 0C to +70C (Commercial) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
اہم امتیازی خصوصیات
- Silicon-revision A errata fixes over original -04/SO (بمقابلہPIC16C620-04/SO (this product))
- Industrial temperature grade option available in same package (بمقابلہPIC16C620-04I/SO)
- Field-reprogrammable flash upgrade in same 18-SOIC footprint (بمقابلہPIC16F627A-I/SO)
ڈیزائن نوٹس
The PIC16C620-04/SO is an OTP EPROM device - once programmed, the firmware CANNOT be erased or rewritten. Do not use this part for prototypes or any design where firmware changes are expected. For development, use PIC16F627A-I/SO (flash) in the same 18-SOIC footprint, then migrate to PIC16C620-04/SO only when firmware is locked. A common pitfall is to order the OTP version for engineering samples and then need firmware changes - this wastes the entire lot.
Place the 4 MHz crystal or resonator as close as possible to the OSC1 (pin 6) and OSC2 (pin 7) pins, with short traces and a solid ground plane beneath. Add a 1 M-ohm parallel resistor across the crystal if low-drive crystals are used, and keep digital signal traces away from the OSC traces to avoid coupling noise into the clock. Place decoupling capacitors (100 nF + 10 uF) within 5 mm of the VDD pin (pin 16).
Estimated: at 4 MHz and 5 V supply the PIC16C620-04/SO draws approximately 5 mA typical, less than 25 mA worst case. Total power is therefore below 125 mW, well within the SOIC package's thermal limit. For battery-powered designs, use the watchdog timer's internal RC oscillator (~1.6 uA) and SLEEP mode to drop quiescent current to single-digit microamps, enabling years of life on 2xAA cells.
تعمیل کی معلومات
PIC16C620-04/SO is generally listed as RoHS non-compliant at distributors due to Pb-bearing OTP EPROM windowed packages historically used; verify lot-specific RoHS certificates of compliance with Microchip CoC database. For RoHS-required designs, migrate to PIC16F627A-I/SO or PIC16F648A-I/SO in the same 18-SOIC footprint.
