PIC16C54T-RCE/SO - 8-Bit OTP MCU, 4MHz, 18-SOIC | Microchip
MPN: PIC16C54T-RCE/SO ✓ Hoạt độngPIC16C54T-RCE/SO Tóm tắt
An 8-bit microcontroller (MCU) is a small single-chip computer that integrates a CPU, program memory, RAM, and peripheral I/O on a single die, executing instructions from on-chip program memory. Within the taxonomy, the PIC16C54 belongs to the hierarchy: microcontroller -> 8-bit MCU -> CMOS RISC MCU -> PIC16C5X family -> PIC16C54 sub-family, in the broader power management and embedded control semiconductor category. The /RCE ROMless/OTP one-time-programmable version is optimized for low-volume and prototype designs where field reprogrammability is not required.
Key features include 768 bytes (512 x 12) of OTP program memory, 25 bytes of general-purpose RAM, 12 digital I/O pins, a 33-instruction RISC instruction set, a hardware Watchdog Timer (WDT), Power-On Reset (POR), and an external oscillator interface. Single-cycle instruction execution (except program branches) and 12-bit-wide opcodes produce 2:1 code compression versus competing 8-bit MCUs, an important density advantage for cost-sensitive applications. Supply voltage spans 3.25 V to 6 V, with the /E suffix extending the operating range to -40C to +125C.
Typical applications include appliance control, automotive body electronics, smart sensors, low-end remote controls, battery chargers, and simple LED driver controllers. The 18-SOIC footprint also supports hand-soldering in prototypes and small-series industrial systems. The RISC architecture enables deterministic interrupt response and predictable timing for hard-real-time loops, while the small code footprint allows the 512-word OTP window to absorb full application logic in many designs.
When designing with the PIC16C54T-RCE/SO, observe the 6 V absolute-maximum VDD rating, provide a 0.1 uF decoupling capacitor close to VDD, and select an external clock source that meets the 4 MHz specification. Because OTP memory cannot be re-programmed, the JW (windowed) variant is recommended for firmware development and the C-revision mask set is recommended for production.
Bộ thay thế dễ dàng lắp đặt cho PIC16C54T-RCE/SO — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16C54T-RCE/SO (cùng hình factor và footprint) — khác nhau ở Program Memory Size, Program Memory Type, Package, RoHS Status, Core Architecture.
PIC16C54C-04I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C54C-04/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C54AT-20E/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C54A-20I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C54T-LPI/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C54T-HS/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C54T-RCE/SO Tỷ lệ tối đa & tính chất điện
| Core Architecture | 8-bit PIC RISC |
| Family | PIC16C5X |
| Program Memory Type | OTP (One-Time Programmable) EPROM |
| Program Memory Size | 768 bytes (512 x 12 words) |
| RAM Size | 25 x 8 bytes |
| EEPROM Size | None |
| Tần số xung maksimum | 4 MHz |
| Instruction Cycle Time | 200 ns |
| Number of I/O Pins | 12 |
| Supply Voltage (VDD) | 3.25 V to 6 V |
| Khoảng nhiệt độ hoạt động | -40C to +125C (E grade) |
| Hộp / Vỏ | 18-SOIC (0.295 inch, 7.50 mm width) |
| Kiểu lắp đặt | Surface Mount |
| Oscillator Type | External |
| Peripherals | POR, WDT |
| Number of Instructions | 33 |
| Packaging | Tape & Reel (T-suffix) |
| Terminal Form | Gull Wing |
Cấu hình chân PIC16C54T-RCE/SO
| Chân 1 | RA0 — Bidirectional I/O port A bit 0 |
| Chân 2 | RA1 — Bidirectional I/O port A bit 1 |
| Chân 3 | RA2 — Bidirectional I/O port A bit 2 |
| Chân 4 | RA3 — Bidirectional I/O port A bit 3 |
| Chân 5 | VSS — Ground reference |
| Chân 6 | RB0 — Bidirectional I/O port B bit 0 |
| Chân 7 | RB1 — Bidirectional I/O port B bit 1 |
| Chân 8 | RB2 — Bidirectional I/O port B bit 2 |
| Chân 9 | RB3 — Bidirectional I/O port B bit 3 |
| Chân 10 | RB4 — Bidirectional I/O port B bit 4 |
| Chân 11 | RB5 — Bidirectional I/O port B bit 5 |
| Chân 12 | RC0 — Bidirectional I/O port C bit 0 / RTCC |
| Chân 13 | RC1 — Bidirectional I/O port C bit 1 |
| Chân 14 | VDD — Positive supply voltage (3.25 V to 6 V) |
| Chân 15 | OSC2 — Oscillator crystal output |
| Chân 16 | OSC1 — Oscillator crystal / external clock input |
| Chân 17 | RC2 — Bidirectional I/O port C bit 2 |
| Chân 18 | MCLR — Master Clear (active-low reset) with internal pull-up |
Ứng dụng tiêu biểu
PIC16C54T-RCE/SO phù hợp cho 6 Áp dụngs: Appliance Control, Automotive Body Electronics, Battery Chargers and Power Tool Controllers, LED Lighting Controllers, Remote Controls and IR Transmitters, Industrial Sensor Signal Conditioning.
Appliance Control
The PIC16C54T-RCE/SO is well suited for appliance control boards such as washing-machine timers, microwave user interfaces, and dishwasher cycle controllers. Its 12 digital I/O pins can directly drive relay coils, seven-segment LED displays, and membrane keypads, while the 4 MHz RISC core executes 5 MIPS (million instructions per second) deterministically - more than enough to scan keypads at 10 ms intervals and run PID-like temperature loops for oven or heater regulation. The 25-byte RAM keeps the BOM lean because state variables, debounce counters, and timer flags all fit in a single register page. The extended -40C to +125C E-grade temperature range covers the under-cabinet and laundry-room thermal environment, and the 18-SOIC package is small enough to fit behind a control-panel membrane. With OTP one-time-programmable memory, the firmware is locked at production, eliminating field-tampering risk and reducing per-unit cost by 10-20 percent compared with flash-based PIC16F54.
Được đề xuất
Automotive Body Electronics
The PIC16C54T-RCE/SO is a strong fit for non-safety automotive body modules such as interior lighting dimmers, mirror-position controllers, seat-occupancy detectors, and HVAC mode selectors. The 33-instruction RISC core delivers predictable 200 ns cycle time, which simplifies CAN-LIN gateway timing budgets and keeps interrupt latency under 1 us. With 12 GPIO plus 25 bytes of RAM, the part can scan up to four rotary encoders, drive a small MOSFET H-bridge for mirror actuation, and handle debounce logic for tactile switches. The E-grade -40C to +125C specification covers under-dash and door-module thermal envelopes, while the wide 3.25 V to 6 V supply range tolerates cranking transients and load-dump events when paired with a TVS diode. For higher-clock automotive designs, the PIC16C54AT-20E/SO 20 MHz variant shares the 18-SOIC footprint and can be a drop-in upgrade.
Được đề xuất
Battery Chargers and Power Tool Controllers
The PIC16C54T-RCE/SO fits Li-ion and Ni-MH charger control boards where deterministic timing is more important than raw MIPS. The 200 ns instruction cycle enables accurate PWM generation for current-mode control loops without analog comparators, and the Watchdog Timer plus Power-On Reset provide the fail-safe behavior required by UL and IEC 60335 household-appliance standards. The 25-byte RAM holds a 16-entry lookup table for charge-state voltage thresholds, while the 768-byte OTP program memory can encode CC/CV algorithms, safety timers, and temperature-derating curves. Because the part runs from 3.25 V to 6 V, it can be powered directly from a single-cell Li-ion pack or a rectified 5 V rail. The 18-SOIC footprint is small enough to fit inside a cylindrical battery housing or a handheld-tool grip.
Được đề xuất
LED Lighting Controllers
The PIC16C54T-RCE/SO drives small LED lighting controllers including RGB strip drivers, decorative light chasers, and aquarium lighting timers. The 12 GPIO can be software-PWM multiplexed to control up to 8 LED channels with 8-bit dimming resolution at refresh rates above 100 Hz, eliminating visible flicker. The 4 MHz clock and 200 ns cycle time support smooth color-mixing math and gamma-correction tables stored in the 25-byte RAM. Because the E-grade temperature range spans -40C to +125C, the part is suitable for outdoor luminaire and under-hood applications. The 18-SOIC package is small enough to mount on a star-LED MCPCB, and the OTP memory locks the color sequence in production, preventing unauthorized field reprogramming. For high-channel-count fixtures, the PIC16F54-I/SO 18-SOIC flash variant is a drop-in upgrade.
Được đề xuất
Remote Controls and IR Transmitters
The PIC16C54T-RCE/SO is a proven choice for low-cost IR remote controls for TVs, set-top boxes, air conditioners, and ceiling fans. The 33-instruction RISC core can generate 38 kHz / 40 kHz / 56 kHz carrier frequencies directly from a 4 MHz system clock using software toggle on a GPIO pin, eliminating an external 555 timer or ceramic resonator. The 12 GPIO can matrix-scan a 4x4 keypad (8 lines) plus drive the IR LED and a status LED. The 25-byte RAM holds the last-key-pressed buffer, hold-repeat counters, and device-ID bytes, while the 768-byte OTP easily accommodates NEC, RC-5, RC-6, and SIRC protocol stacks. The 3.25 V to 6 V range allows direct operation from two AAA cells or a CR2032 coin cell with boost regulator.
Được đề xuất
Industrial Sensor Signal Conditioning
The PIC16C54T-RCE/SO is used in industrial sensor-interface modules that need a small, deterministic MCU to perform linearization, scaling, and protocol conversion. The 200 ns instruction cycle is fast enough to implement 10-bit sigma-delta averaging on a single GPIO bit-banged input, while the 25-byte RAM can hold scaling tables for thermistor or RTD linearization. The 12 GPIO can drive a 4-20 mA current loop transmitter, an RS-232 level shifter, and a status-LED array without external logic. The E-grade -40C to +125C temperature range is mandatory for plant-floor or outdoor enclosures. Because OTP memory cannot be re-flashed, sensor calibration constants are locked at production, eliminating field drift. The 18-SOIC footprint fits in standard DIN-rail module housings, and the part's 5 MIPS performance is sufficient for most slow-control loops in process instrumentation.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C54T-RCE/SO — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16C54C-04I/SO | PIC16C54C-04/SO | PIC16C54AT-20E/SO | PIC16C54A-20I/SO | PIC16C54T-LPI/SO | PIC16C54T-HS/SO |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-SOIC (0.295 inch) | 18-SOIC (0.295 inch) - same | 18-SOIC (0.295 inch) - same | 18-SOIC (0.295 inch) - same | 18-SOIC (0.295 inch) - same | 18-SOIC (0.295 inch) - same | 18-SOIC (0.295 inch) - same |
| Maximum Clock Frequency | 4 MHz | 4 MHz | 4 MHz | 20 MHz | 20 MHz | 4 MHz | 20 MHz |
| Instruction Cycle | 200 ns | 200 ns | 200 ns | 100 ns | 100 ns | 200 ns | 100 ns |
| Program Memory | 768 B (512 x 12) OTP | 768 B (512 x 12) OTP | 768 B (512 x 12) OTP | 768 B (512 x 12) OTP | 768 B (512 x 12) OTP | 768 B (512 x 12) OTP | 768 B (512 x 12) OTP |
| RAM | 25 x 8 bytes | 25 x 8 bytes | 25 x 8 bytes | 25 x 8 bytes | 25 x 8 bytes | 25 x 8 bytes | 25 x 8 bytes |
| Supply Voltage | 3.25 V to 6 V | 3.25 V to 6 V | 3.25 V to 6 V | 3.25 V to 6 V | 3.25 V to 6 V | 2.5 V to 6 V (wider range) | 3.25 V to 6 V |
| Temperature Grade | -40C to +125C (E) | -40C to +85C (I) | 0C to +70C (commercial) | -40C to +125C (E) | -40C to +85C (I) | -40C to +85C (I) | 0C to +70C (commercial) |
| I/O Pins | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
Bảo phân biệt quan trọng
- E-grade extended temperature range (vsPIC16C54C-04/SO)
- Tape and Reel high-volume packaging (vsPIC16C54-RCE/SO (tube version))
- 4 MHz operation with 200 ns deterministic instruction cycle (vsPIC16C54T-LPI/SO (low-power variant))
Ghi chú thiết kế
Place a 0.1 uF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 14) and a 10 uF bulk capacitor near the VDD trace. The PIC16C54T-RCE/SO has no internal voltage regulator, so a noisy 5 V rail can corrupt OTP programming pulses and cause brown-out resets; add a ferrite bead on VDD if the supply shares a switching converter. The MCLR pin (pin 18) has an internal pull-up, but adding an external 10 kohm pull-up improves ESD and EMI immunity on long reset traces.
OTP (One-Time Programmable) memory cannot be erased after programming, so use the PIC16C54 JW (windowed CERDIP) variant for firmware development and the C-revision mask set for production. The T-suffix in PIC16C54T-RCE/SO indicates Tape & Reel carrier only, not a temperature option; do not confuse it with the I-suffix industrial grade. Also note that the maximum 6 V absolute rating applies to VDD only - driving an I/O pin above VDD or below VSS will latch up the part, even within the operating temperature range.
Route the OSC1/OSC2 traces (pins 15-16) short and symmetric, with a ground guard ring, to avoid coupling noise from adjacent switching nodes. Keep the crystal or resonator within 5 mm of the IC and place load capacitors (typically 15-33 pF) directly at the IC pins. If using an external CMOS clock, drive OSC1 only and leave OSC2 floating; do not load OSC2 with anything except the internal inverter. Avoid running I/O traces under the crystal traces to minimize capacitive coupling that can shift the oscillator frequency.
Thông tin tuân thủ
Lead-free (Pb-free) finish is industry-standard for SOIC packages, but RoHS and REACH compliance must be confirmed with the manufacturer's lot-specific certificate of conformance. The PIC16C54T-RCE/SO is not AEC-Q100 qualified; the E-grade -40C to +125C temperature range covers industrial but not automotive safety-critical applications. The Automotive Q-grade version, if required, would carry a different ordering suffix.