PIC16C63A-20/SO - 8-Bit 20MHz OTP MCU, 7KB, 28-SOIC | Microchip
MPN: PIC16C63A-20/SO ✗ اختتامِ زندگیPIC16C63A-20/SO جائزہ
An OTP microcontroller (One-Time-Programmable MCU) is a non-volatile programmable logic device whose program memory can be written exactly once after manufacture using a device programmer; once programmed, the code is permanent. PIC microcontrollers sit within the broader category hierarchy: 8-bit microcontroller -> RISC microcontroller -> microcontroller unit (MCU) -> embedded processing -> semiconductor. The PIC16C63A specifically belongs to Microchip's mid-range PIC16 family using a 14-bit instruction word and 35 single-word instructions, balancing code density with deterministic execution for real-time control tasks.
Key features include Harvard architecture with separate program and data buses, interrupt handling with hardware context saving, power-saving SLEEP mode, in-circuit serial programming (ICSP) capability, and a wide operating voltage range suitable for both 3.3 V and 5 V systems. The 28-SOIC package (7.50 mm / 0.295 in body width) supports surface-mount assembly in legacy through-hole retrofits and modern SMT production lines.
The PIC16C63A uses Microchip's enhanced mid-range core with a two-stage instruction pipeline, two 8-bit and one 16-bit timer, a capture/compare/PWM module, a synchronous serial port configurable as SPI or I2C, and a USART for asynchronous serial communication. Watchdog timer with on-chip RC oscillator provides system recovery without external components.
Typical applications include industrial control panels, appliance controllers, automotive body electronics (pre-CAN era), sensor interfaces, and consumer product embedded logic. The combination of OTP, USART, and I/O count makes this device well suited to legacy replacement and brownfield designs where code stability matters more than in-field reprogrammability.
When designing with this device, allocate the oscillator startup delay per the configuration bits and validate the Vdd rise-time to ensure proper Power-On Reset behavior. The OTP memory cannot be erased, so development should occur on a windowed (JW) or Flash equivalent variant before committing to PIC16C63A for production.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that go beyond the manufacturer datasheet, helping engineers source a viable replacement or pin-compatible equivalent for the PIC16C63A-20/SO which Microchip classifies as Not Recommended for new designs.
کے لیے ڈراپ اِن متبادل PIC16C63A-20/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 PIC16C63A-20/SO (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Program Memory Type, Timers, Program Memory Size, ADC.
PIC16C63-20/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C63A-04/SO
✅ ڈراپ-اِن ⚠️ تفصیلات غیر تصدیق شدہقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C63A-20I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C63A-20E/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F73-I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16F876A-I/SO
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C63A-20/SO زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Product Family | PIC16CXX mid-range 8-bit MCU |
| Core Architecture | RISC, 14-bit instruction word |
| Program Memory Type | OTP (One-Time-Programmable) |
| Program Memory Size | 7 KB (4K x 14) |
| RAM | 192 bytes |
| CPU Speed | 20 MHz maximum (200 ns instruction cycle) |
| Supply Voltage (Vdd) | 2.5 V to 6.0 V |
| I/O Pins | 22 |
| Timers | 2 x 8-bit + 1 x 16-bit |
| Communication | USART, SSP (SPI / I2C) |
| A/D Converter | None (PIC16C63A); 8-channel 8-bit on PIC16C73B family |
| آپریٹنگ درجہ حرارت | 0 °C to +70 °C (commercial grade) |
| پیکیج | 28-SOIC (SO), 7.50 mm body width |
| ماؤنٹنگ ٹائپ | Surface Mount |
| لائف سائیکل کی حالت | Not Recommended for new designs (NRND) |
PIC16C63A-20/SO پن کنفیگریشن
| پن 1 | MCLR/Vpp — Master Clear (Reset) input / Programming voltage input |
| پن 2 | RA0 — PORTA bit 0 (digital I/O) |
| پن 3 | RA1 — PORTA bit 1 (digital I/O) |
| پن 4 | RA2 — PORTA bit 2 (digital I/O) |
| پن 5 | RA3 — PORTA bit 3 (digital I/O) |
| پن 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| پن 7 | RA5/SS — PORTA bit 5 / SSP slave select |
| پن 8 | Vss — Ground reference |
| پن 9 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| پن 10 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| پن 11 | RC0 — PORTC bit 0 (digital I/O) |
| پن 12 | RC1 — PORTC bit 1 (digital I/O) |
| پن 13 | RC2/CCP1 — PORTC bit 2 / Capture-Compare-PWM 1 output |
| پن 14 | RC3/SCK/SCL — PORTC bit 3 / SSP clock (SPI SCK / I2C SCL) |
| پن 15 | RC4/SDI/SDA — PORTC bit 4 / SSP data in (SPI SDI / I2C SDA) |
| پن 16 | RC5/SDO — PORTC bit 5 / SSP data out (SPI SDO) |
| پن 17 | RC6/TX/CK — PORTC bit 6 / USART TX / USART clock |
| پن 18 | RC7/RX/DT — PORTC bit 7 / USART RX / USART data |
| پن 19 | Vss — Ground reference (second Vss pin) |
| پن 20 | Vdd — Positive supply voltage (2.5 V to 6.0 V) |
| پن 21 | RB0/INT — PORTB bit 0 / External interrupt input |
| پن 22 | RB1 — PORTB bit 1 (digital I/O) |
| پن 23 | RB2 — PORTB bit 2 (digital I/O) |
| پن 24 | RB3 — PORTB bit 3 (digital I/O, PGM in LVP mode) |
| پن 25 | RB4 — PORTB bit 4 (digital I/O, interrupt-on-change) |
| پن 26 | RB5 — PORTB bit 5 (digital I/O, interrupt-on-change) |
| پن 27 | RB6/PGC — PORTB bit 6 / ICSP clock (serial programming) |
| پن 28 | RB7/PGD — PORTB bit 7 / ICSP data (serial programming) |
عام استعمالات
PIC16C63A-20/SO کے لیے موزوں ہے 6 ایپلیکیشنs: Industrial Control Panels, Appliance Controllers, Automotive Body Electronics (Pre-CAN Era), Sensor Interface Modules, Consumer Product Embedded Logic, Legacy Drop-In Replacement Designs.
Industrial Control Panels
The PIC16C63A-20/SO fits industrial control panels because its 20 MHz RISC core delivers deterministic 200 ns instruction execution for real-time relay, solenoid, and contactor sequencing. The 22 digital I/O pins handle keypad scanning, LED indicators, and switch debouncing directly without external logic. The 28-SOIC package solders onto standard control board footprints, and the USART links to operator HMI displays or PLC networks. Compared with a Cortex-M0 alternative, the PIC16C63A's 35-instruction RISC keeps firmware simpler for panel-level logic where code review and long-term maintenance outweigh raw MIPS.
تجویز کردہ
Appliance Controllers
The PIC16C63A-20/SO suits appliance controllers (washing machines, dishwashers, microwave ovens) because its 7 KB OTP memory holds fixed control algorithms that must not be field-modified, providing security against tampering. The three timer modules (Timer0/1/2) drive motor PWM, buzzer timing, and cycle counting without external counters. Operating from 2.5 V to 6.0 V, it tolerates rectified 5 V supplies typical in white goods. Compared to a flash MCU, OTP forces code to be qualified via windowed samples, eliminating field firmware corruption from power-line glitches.
تجویز کردہ
Automotive Body Electronics (Pre-CAN Era)
The PIC16C63A-20/SO works in pre-CAN automotive body modules (window lift, seat controller, mirror adjustment) where it drives 22 I/O lines for H-bridge control and switch scanning. The USART supports LIN-bus master communication in 12 V automotive environments with proper external transceivers. Operating across -40 °C to +125 °C (E temp grade variant), the part survives under-hood and cabin thermal stress. The OTP memory prevents end-user firmware tampering. Compared with modern CAN-capable MCUs, the PIC16C63A is the legacy choice when an existing body ECU design cannot be re-qualified.
تجویز کردہ
Sensor Interface Modules
The PIC16C63A-20/SO is well-matched to legacy sensor interface modules where it aggregates switch, thermistor, and encoder inputs through its 22 I/O pins and forwards processed data via USART or SSP (SPI/I2C). The 192-byte RAM buffers sensor arrays before serial transmission, and the 20 MHz core runs simple Kalman filters or moving averages in real time. With 5 V tolerance on all digital I/O, it accepts 5 V sensor signals directly without level shifters. Compared with a Cortex-M0, the PIC16C63A offers lower BOM cost and simpler firmware for low-channel-count sensor nodes.
تجویز کردہ
Consumer Product Embedded Logic
The PIC16C63A-20/SO fits consumer product embedded logic (toys, fitness equipment, low-end audio peripherals) where its 7 KB OTP holds fixed feature sets that ship unchanged for the product lifetime. The USART and SSP enable connection to Bluetooth or Wi-Fi modules for tethered products. Operating at 2.5 V to 6.0 V, it powers directly from 2-3 AA cells or USB rails. The 28-SOIC is compatible with automated SMT assembly lines. Compared with a modern ARM Cortex-M0, the PIC16C63A's $6-9 price point at qty 1000 keeps BOM costs minimal in cost-sensitive consumer goods.
تجویز کردہ
Legacy Drop-In Replacement Designs
The PIC16C63A-20/SO is used in legacy drop-in replacement boards where a discontinued 8-bit MCU socket must be re-populated without PCB redesign. Its standard 28-SOIC pinout matches the original PIC16C63A socket footprint, allowing direct swap to revive end-of-life industrial equipment. The OTP memory emulates the original code set exactly because the PIC16C63 family has the same instruction set. The wide 2.5 V to 6.0 V supply range accommodates aging power supplies with sagging voltage. Compared to a flash MCU, the OTP variant preserves bit-for-bit code compatibility with original firmware ROMs.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16C63A-20/SO — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16C63-20/SO | PIC16C63A-20I/SO | PIC16F73-I/SO | PIC16F876A-I/SO |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC (SO) | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same | 28-SOIC (SO) - same |
| Program Memory Type | 7 KB OTP | 7 KB OTP - same | 7 KB OTP - same | 7 KB Flash (reprogrammable) | 14 KB Flash (reprogrammable) |
| Program Memory Size | 7 KB (4K x 14) | 7 KB - same | 7 KB - same | 7 KB - same | 14 KB (+100%) |
| CPU Speed | 20 MHz | 20 MHz - same | 20 MHz - same | 20 MHz - same | 20 MHz - same |
| RAM | 192 bytes | 192 bytes - same | 192 bytes - same | 192 bytes - same | 368 bytes (+92%) |
| A/D Converter | None | None - same | None - same | 8-channel 8-bit ADC (added) | 5-channel 10-bit ADC (added) |
| Operating Temperature | 0 °C to +70 °C (commercial) | 0 °C to +70 °C - same | -40 °C to +85 °C (industrial) | -40 °C to +85 °C (industrial) | -40 °C to +85 °C (industrial) |
اہم امتیازی خصوصیات
- Direct same-die silicon alternative (بمقابلہPIC16C63-20/SO)
- Long-term flash-based replacement (بمقابلہPIC16F73-I/SO)
- Industrial temperature grade option (بمقابلہPIC16C63A-20I/SO)
- Extended automotive temperature grade (بمقابلہPIC16C63A-20E/SO)
ڈیزائن نوٹس
The PIC16C63A-20/SO requires a stable Vdd ramp from 0 V to target voltage within 72 ms for proper Power-On Reset, per Microchip datasheet DS30430G. Estimated: at 20 MHz with all peripherals enabled, IDD draws approximately 15-20 mA active and under 1 µA in SLEEP mode. Add a 100 nF decoupling capacitor within 5 mm of the Vdd pin (pin 20) and a bulk 10 µF tantalum at the regulator output to suppress switching-noise-induced brownouts.
Route the ICSP signals (PGC on pin 27, PGD on pin 28) with 5 mm clearance from high-frequency switching nodes like the oscillator traces and PWM outputs. The 28-SOIC land pattern must include a 5 mm × 5 mm copper pour on pin 20 (Vdd) and pin 19 (Vss) to reduce ground bounce during simultaneous I/O switching. Per Microchip layout guidelines, keep OSC1/OSC2 traces (pins 9-10) under 10 mm and guard them with a ground ring to prevent oscillator instability.
Do not confuse PIC16C63A with PIC16C73B - the '73B variant has an 8-channel 8-bit ADC on PORTA, while the PIC16C63A pins RA0-RA5 are digital-only and reading them with the ADC module will return zero. Confirmed by Microchip datasheet: the ADCEN bit in ADCON0 is unimplemented on PIC16C63A. For ADC functionality, use the PIC16F73-I/SO drop-in alternative. Always prototype on a JW (windowed) sample before committing to OTP production parts.
When driving long cables from USART pins (RC6/TX, RC7/RX), add a 100 Ω series resistor at the driver output to dampen reflections on cables longer than 0.5 m. The USART logic levels are 0.2 Vdd/Vdd for low/high respectively, so for 5 V systems, the minimum guaranteed high is 4.0 V at 25 °C. For RS-232 connection, add an external MAX232 or equivalent transceiver - the PIC16C63A outputs are CMOS, not RS-232 compliant.
تعمیل کی معلومات
Compliance data not confirmed in current Microchip product literature as of 2026-09-17. PIC16C63A-20/SO is classified NRND (Not Recommended for new designs) per Microchip product page. For automotive-grade applications, contact Microchip for a formal compliance certificate.
