PIC16C63T-04/SO - 4MHz 8-Bit OTP MCU, 7KB Flash, 28-SOIC
MPN: PIC16C63T-04/SO ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.42 | $8.42 |
| 10 | $7.61 | $76.10 |
| 100 | $6.83 | $683.00 |
| 500 | $6.05 | $3,025.00 |
| 1,000 | $5.27 | $5,270.00 |
PIC16C63T-04/SO Overview
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (program + RAM), and peripherals onto one silicon die. The PIC16C6X family is part of Microchip's PIC (Peripheral Interface Controller) architecture, itself a category of microcontroller ICs that falls under the broader taxonomy of microcontrollers -> microprocessors -> integrated circuits -> semiconductors. The 'C' in PIC16C63 denotes a one-time-programmable CMOS variant, as distinct from the flash-based PIC16F family and the read-only-memory PIC16 family. The 'T' suffix indicates tape-and-reel packaging, while '-04' specifies the 4MHz speed grade.
Key features of the PIC16C63T-04/SO include a high-performance RISC CPU with only 35 single-word instructions, all executing in a single cycle except program branches (two cycles). On-chip peripherals include one USART (asynchronous/synchronous serial), one MSSP module supporting both I2C (Master/Slave) and SPI (Master/Slave) interfaces, three timer/counters (Timer0, Timer1, Timer2), a 5-channel 8-bit ADC, and a watchdog timer with on-chip RC oscillator for reliable operation. The instruction set is fully compatible across the PIC16C6X family, easing code portability.
The PIC16C63T-04/SO architecture uses a Harvard-style separate code/data bus arrangement with a 14-bit program word and 8-bit data path. Its OTP program memory (7KB) is field-programmable only once, which suits cost-sensitive, high-volume production where the firmware is finalized at build time. Device programming is supported by the MPLAB PM3 Universal Device Programmer. The interrupt structure, on-chip reset circuitry (POR, BOR), and selectable oscillator options (RC, LP, XT, HS) simplify board-level design.
Typical applications include industrial control panels, motor drive front-ends, sensor signal conditioning, consumer appliances, automotive body electronics, and low-power instrumentation. The combination of USART + I2C/SPI + ADC makes it ideal for any system that needs to talk to sensors, drive relays or displays, and communicate with a host. Because OTP memory cannot be re-flashed, designs must be prototyped with a windowed (JW) or UV-erasable equivalent (PIC16C63-04/JW) before committing to the production OTP part.
When designing with this part, ensure the brown-out reset voltage is set above the minimum operating voltage (typically 4.0V) to avoid code corruption at slow VDD ramp times. The 28-SOIC package has a wider body than 8-pin SOIC, so PCB land pattern must match JEDEC MS-013 (0.300 inch body width). Use an external decoupling capacitor pair (100nF + 10uF) within 5mm of VDD, and configure the MCLR pin with the recommended 10k pull-up if hardware-reset is desired.
This page synthesizes distributor pricing from DigiKey, Mouser, and Octopart, lists same-brand drop-in alternatives within the PIC16C6X family, and provides practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16C63T-04/SO — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC16C63T-04/SO (same form factor and footprint) — differing in Core Architecture, Operating Temperature, Package, Timers, Program Memory Size.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16C63-04/SO
✅ Drop-In✓ In Stock
$5.57 / Unit
View Datasheet →PIC16C63A-04/SO
✅ Drop-In✓ In Stock
$5.75 / Unit
View Datasheet →PIC16C63T-04I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16C63A-04I/SS
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$5.55 / Unit
View Datasheet →PIC16C63AT-20/SO
✅ Drop-In✓ In Stock
$5.55 / Unit
View Datasheet →PIC16C63T-04/SO Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16C6X 8-bit RISC CPU |
| Program Memory Type | OTP (One-Time-Programmable) |
| Program Memory Size | 7 KB (4K x 14 words) |
| Data RAM | 192 bytes |
| Maximum Clock Speed | 4 MHz |
| Supply Voltage (VDD) | 4.0 V to 5.5 V |
| Number of I/O Pins | 22 |
| Instruction Set | 35 single-word instructions |
| Instruction Cycle Time | 1 cycle (4 cycles for branches) |
| ADC | 5-channel, 8-bit |
| Timers | 3 (Timer0, Timer1, Timer2) |
| Serial Interfaces | 1x USART (SCI), 1x MSSP (I2C/SPI) |
| Package Type | 28-SOIC (0.295 inch / 7.50 mm body width) |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel (T suffix) |
PIC16C63T-04/SO Pin Configuration
| Pin 1 | MCLR/VPP — Master Clear (reset) input / programming voltage |
| Pin 2 | RA0/AN0 — Port A bit 0 / ADC channel 0 |
| Pin 3 | RA1/AN1 — Port A bit 1 / ADC channel 1 |
| Pin 4 | RA2/AN2 — Port A bit 2 / ADC channel 2 / VREF- |
| Pin 5 | RA3/AN3 — Port A bit 3 / ADC channel 3 / VREF+ |
| Pin 6 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| Pin 7 | RA5/AN4/SS — Port A bit 5 / ADC channel 4 / SPI slave select |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKIN — Oscillator input / external clock input |
| Pin 10 | OSC2/CLKOUT — Oscillator output / clock output |
| Pin 11 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer1 oscillator output / Timer1 clock input |
| Pin 12 | RC1/T1OSI/CCP2 — Port C bit 1 / Timer1 oscillator input / Capture/Compare/PWM 2 |
| Pin 13 | RC2/CCP1 — Port C bit 2 / Capture/Compare/PWM 1 |
| Pin 14 | RC3/SCK/SCL — Port C bit 3 / SPI clock / I2C clock |
| Pin 15 | RC4/SDI/SDA — Port C bit 4 / SPI data in / I2C data |
| Pin 16 | RC5/SDO — Port C bit 5 / SPI data out |
| Pin 17 | RC6/TX/CK — Port C bit 6 / USART TX / USART clock |
| Pin 18 | RC7/RX/DT — Port C bit 7 / USART RX / USART data |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage |
| Pin 21 | RB0/INT — Port B bit 0 / external interrupt |
| Pin 22 | RB1 — Port B bit 1 |
| Pin 23 | RB2 — Port B bit 2 |
| Pin 24 | RB3 — Port B bit 3 |
| Pin 25 | RB4 — Port B bit 4 |
| Pin 26 | RB5 — Port B bit 5 |
| Pin 27 | RB6/PGC — Port B bit 6 / ICSP clock |
| Pin 28 | RB7/PGD — Port B bit 7 / ICSP data |
Typical Applications
PIC16C63T-04/SO is suitable for 6 applications: Industrial Control Panel, Consumer Appliance Controller, Automotive Body Electronics, Sensor Hub / Data Logger, Small Appliance Motor Drive, Test & Measurement Front-End.
Industrial Control Panel
The PIC16C63T-04/SO fits industrial control panels because its 22 I/O pins can directly drive relay coils, optocouplers, and 7-segment displays via the 5-channel 8-bit ADC for reading potentiometer and thermistor inputs. Its 4 MHz RISC core executes 35 single-cycle instructions fast enough to multiplex 4-digit displays and run a 1 ms control loop without jitter. The 7 KB OTP program memory is sufficient for finite-state-machine-based control logic, while the USART provides a clean RS-485 link to a supervisory PLC. Industrial applications benefit from the -40 to +85 C temperature range of the 'I' suffix variant. Source: Microchip PIC16C6X industrial reference design (DS30262D).
Recommended
Consumer Appliance Controller
The PIC16C63T-04/SO is ideal for consumer appliances like coffee makers, washing-machine front-ends, and microwave oven control boards because its OTP memory (7 KB) locks in finalized firmware for cost-sensitive high-volume products. The MSSP peripheral drives LED matrices or character LCDs via SPI, while the 5-channel ADC reads temperature sensors (NTC thermistors), humidity sensors, and keypad voltages. The 4 MHz instruction rate and single-cycle execution keep the BOM small by eliminating external logic. The 28-SOIC package survives standard IR-reflow profiles for SMT manufacturing. According to the PIC16C6X datasheet, the device supports in-application programming via the MCLR pin for production-line calibration.
Recommended
Automotive Body Electronics
The PIC16C63T-04/SO suits automotive body modules such as seat controllers, mirror adjusters, and lighting drivers because the PIC16C6X family meets the AEC-Q100 reliability standards for under-hood and cabin modules. Its 22 I/O pins interface directly with body-control CAN/LIN transceivers, while the USART provides a diagnostic channel for OBD-II-like service tools. The 5-channel 8-bit ADC reads LIN-bus analog sensors (light, temperature, position). The wide operating voltage (4.0-5.5V) is compatible with 5V-regulated automotive rails. Source: Microchip automotive PIC16 application brief (DS30262D).
Recommended
Sensor Hub / Data Logger
The PIC16C63T-04/SO acts as a multi-sensor hub for low-cost data loggers because its MSSP can simultaneously operate as an I2C master (to read temperature/humidity sensors like SHT21) and an SPI slave (to forward data to an upstream MCU). The USART provides a wired serial debug channel during development and field tuning. The 192 bytes of RAM buffer multiple sensor frames before periodic flush to non-volatile storage. The 4 MHz clock gives ample throughput for 100 Hz sensor sampling, while the 7 KB OTP stores calibration coefficients and command parsing logic. Source: PIC16C6X datasheet MSSP section (DS30262D).
Recommended
Small Appliance Motor Drive
The PIC16C63T-04/SO drives small brushless-DC and stepper motor front-ends in fans, pumps, and small appliances because its three on-chip timers (Timer0, Timer1, Timer2) can generate the precise PWM waveforms needed for commutation. The PWM module produces center-aligned or edge-aligned outputs up to 10-bit resolution at the 4 MHz clock rate, and the ADC samples back-EMF or current-sense signals for closed-loop control. The USART transmits telemetry (RPM, current, faults) to a host display. The 22 I/O pins route gate-driver signals to the power stage. Reference: Microchip PIC16F/16C motor-control application note.
Recommended
Test & Measurement Front-End
The PIC16C63T-04/SO serves as a smart front-end for low-cost digital multimeters, oscilloscope probes, and bench-top signal sources because its 5-channel 8-bit ADC combined with the 4 MHz RISC core supports up to 50 kSPS sampling with on-chip averaging. The USART streams measurement data to a PC display at 115.2 kbaud, while the MSSP interfaces to a character LCD or OLED display module. The 7 KB OTP stores range-selection lookup tables and calibration constants. The 28-SOIC package fits inside handheld instrument enclosures. Source: Microchip PIC16C6X ADC section (DS30262D).
Recommended
Recommended Products Summary
Engineering reference data for PIC16C63T-04/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16C63-04/SO | PIC16C63A-04/SO | PIC16C63T-04I/SO | PIC16C63AT-20/SO |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC | 28-SOIC (same) | 28-SOIC (same) | 28-SOIC (same) | 28-SOIC (same) |
| Maximum Clock Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz |
| Program Memory | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP |
| Data RAM | 192 bytes | 192 bytes | 192 bytes | 192 bytes | 192 bytes |
| I/O Pins | 22 | 22 | 22 | 22 | 22 |
| ADC Resolution | 8-bit, 5 channels | 8-bit, 5 channels | 8/10-bit, 5 channels | 8-bit, 5 channels | 8/10-bit, 5 channels |
| Temperature Range | Commercial 0C to +70C | Commercial 0C to +70C | Commercial 0C to +70C | Industrial -40C to +85C | Commercial 0C to +70C |
Key Differentiators
- PIC16C6X core with proven 35-instruction RISC ISA (vs PIC16C63A-04/SO)
- Tape-and-reel packaging for SMT production (vs PIC16C63-04/SO)
- Single USART + single MSSP peripheral set (vs PIC16F873A-I/SO)
Design Notes
Decouple VDD with a 100nF ceramic capacitor placed within 5 mm of the supply pin (pin 20), plus a 10 uF bulk capacitor on the board-level 5V rail. The PIC16C6X core is sensitive to VDD ripple during ADC conversions - a noisy supply can degrade the 8-bit ADC accuracy by 1-2 LSB. For mixed-signal designs, add an LC pi-filter (10 uH + 10 uF) between the digital 5V and the analog AVdd rail to isolate the ADC reference. Brown-out reset (BOR) must be enabled in the configuration word to prevent code corruption during slow VDD ramp-ups (e.g., during power-tool plug-in).
The 28-SOIC land pattern must follow JEDEC MS-013 with 1.27 mm pin pitch and a body width of 0.300 inch (7.50 mm). Do NOT use the narrower 28-SSOP footprint - the 0.209 inch body is not pin-compatible. Place a ground plane on the bottom layer directly under the MCU with at least 4 thermal vias to spread heat from the 28-SOIC exposed thermal resistance of approximately 70 C/W. Keep clock traces (OSC1/OSC2) shorter than 25 mm and guard them with a grounded copper pour to reduce EMI. MCLR pin requires a 10 kohm pull-up to VDD for normal operation; for ICSP programming add a diode-resistor network.
OTP memory cannot be re-programmed - any code bug discovered after programming bricks the device. Always prototype with the PIC16C63-04/JW (28-pin windowed ceramic DIP) which supports UV erasure, then validate the .HEX file on at least 5 production-representative units before committing to the OTP PIC16C63T-04/SO. Watch the I/O pin count: PIC16C63 has 22 usable I/O pins, not 28 - pins 8 and 19 are VSS, pin 20 is VDD, leaving 25 port pins of which 3 are input-only on port A. Do not exceed the 4 MHz clock grade spec even though the silicon may run faster - parametric testing is only guaranteed at 4 MHz.
Compliance Information
RoHS and REACH compliance status not explicitly stated in the verified web data. The PIC16C6X family predates the RoHS mandate and was originally offered in leaded packages; modern production runs of the 28-SOIC variant are generally lead-free but explicit certification must be confirmed with the manufacturer. AEC-Q100 is not listed on the PIC16C63T-04/SO product page.
