PIC16C54-RCE/SO - 8-bit OTP MCU, 4MHz, 768B ROM, SOIC-18 | Microchip
MPN: PIC16C54-RCE/SO ✗ Cuối đờiPIC16C54-RCE/SO Tóm tắt
An 8-bit microcontroller (MCU) is a small computing system on a single integrated circuit that combines a CPU, RAM, ROM/Flash, I/O peripherals, and timers in one package. Microcontrollers sit in the semiconductor hierarchy as: microcontroller -> embedded processor -> integrated circuit -> semiconductor. The PIC16C5X family is one of the earliest RISC-architecture 8-bit MCUs and remains popular in cost-sensitive and high-volume designs where predictable behavior and ultra-low power are essential.
The PIC16C54 executes 33 single-word instructions, all single-cycle (200 ns) except program branches which take two cycles, giving a deterministic instruction throughput ideal for interrupt-driven and tight-loop control tasks. Its Harvard memory architecture separates program and data paths to maximize throughput. Brown-out and watchdog options are device-dependent; the OTP variant allows factory or field one-time programming through Microchip device programmers.
Architecturally, the PIC16C54 employs a 12-bit instruction word, an 8-bit data path, two stack levels for subroutine nesting, and a power-on reset (POR) circuit. The internal RC oscillator option (denoted 'RC') simplifies designs by eliminating an external crystal; the 'E' suffix in RCE denotes the extended-temperature grade and 'C' indicates the CMOS process. These features balance silicon area, deterministic timing, and ultra-low quiescent current for battery-tolerant applications.
Typical applications include remote controls, automotive sub-system controllers, sensor signal conditioning, simple closed-loop PID control, low-end consumer appliances, and battery-powered instrumentation. Designers choose the PIC16C54-RCE/SO when code density, deterministic interrupt latency, and small footprint are critical.
When laying out the PCB, place VDD/VSS decoupling capacitors (0.1 uF ceramic) within 5 mm of the supply pins and keep the MCLR pin trace short. For new designs, Microchip recommends evaluating the pin-compatible PIC16F54 flash MCU to avoid OTP obsolescence risk.
This page synthesizes distributor pricing, drop-in alternatives within the PIC16C5X family, and practical design notes that are not consolidated in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC16C54-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 PIC16C54-RCE/SO (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, Instruction Set, Program Memory Type, RoHS Status.
PIC16C54-RC/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C54C-04/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C54C-04I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F54-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C54A-20/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C54-RCE/SO Tỷ lệ tối đa & tính chất điện
| Architecture | 8-bit RISC Harvard |
| Instruction Set | 33 single-word instructions |
| Program Memory (ROM/OTP) | 768 bytes (512 x 12) |
| RAM | 25 bytes |
| I/O Pins | 12 |
| Tần số xung maksimum | 4 MHz |
| Instruction Cycle Time | 200 ns (single-cycle), 400 ns (branch) |
| Supply Voltage (VDD) | 2.5 V to 6.25 V (5 V typical) |
| Oscillator Type | RC |
| Hộp | 18-SOIC (7.50 mm width, 0.295 in) |
| Nhiệt độ hoạt động | -40C to +125C (Extended) |
| Program Memory Type | OTP (One-Time Programmable) |
| Stack Levels | 2 |
| Timers | 1 x 8-bit (TMR0) |
| Watchdog Timer | Yes (internal, software-enabled) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 1 (unlimited floor life at <30C/85% RH) |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
Cấu hình chân PIC16C54-RCE/SO
| Chân 1 | RA2 — Bidirectional I/O port A bit 2 |
| Chân 2 | RA3 — Bidirectional I/O port A bit 3 |
| Chân 3 | RB4 — Bidirectional I/O port B bit 4 |
| Chân 4 | RB5 — Bidirectional I/O port B bit 5 |
| Chân 5 | RB6 — Bidirectional I/O port B bit 6 |
| Chân 6 | RB7 — Bidirectional I/O port B bit 7 |
| Chân 7 | VSS — Ground reference |
| Chân 8 | OSC1 — Oscillator input / RC terminal 1 |
| Chân 9 | OSC2 — Oscillator output / RC terminal 2 |
| Chân 10 | MCLR — Master Clear (reset) input, active low |
| Chân 11 | VDD — Positive supply voltage (2.5 V to 6.25 V) |
| Chân 12 | RB0 — Bidirectional I/O port B bit 0 |
| Chân 13 | RB1 — Bidirectional I/O port B bit 1 |
| Chân 14 | RB2 — Bidirectional I/O port B bit 2 |
| Chân 15 | RB3 — Bidirectional I/O port B bit 3 |
| Chân 16 | RA0 — Bidirectional I/O port A bit 0 |
| Chân 17 | RA1 — Bidirectional I/O port A bit 1 |
| Chân 18 | NC — Not connected (per datasheet package outline) |
Ứng dụng tiêu biểu
PIC16C54-RCE/SO phù hợp cho 6 Áp dụngs: Remote Control and IR Transmitter, Automotive Sub-System Controller, Battery-Powered Sensor Signal Conditioning, Simple Closed-Loop PID Controller, Consumer Appliance User Interface, Industrial Timer and Sequencer.
Remote Control and IR Transmitter
The PIC16C54-RCE/SO fits remote-control encoder applications because its 33-instruction RISC core and 200 ns cycle time deliver deterministic timing for IR carrier generation (typically 38 kHz or 40 kHz). The 768-byte OTP memory holds standard RC5, NEC, or SIRC protocol encoders comfortably, while 12 I/O pins are sufficient for keypad scanning (4x3 matrix) and IR LED drive. The RC oscillator option eliminates the external crystal, reducing BOM cost by USD 0.10-0.20 per unit. Extended temperature grade (-40C to +125C) ensures reliable operation in outdoor or automotive-cabin environments. Brown-out protection guards against weak-battery transmission errors.
Được đề xuất
Automotive Sub-System Controller
Within automotive body-electronics modules (mirror controllers, seat-position memory, simple sensor hubs), the PIC16C54-RCE/SO's extended -40C to +125C operating range and deterministic interrupt response make it a proven workhorse. The 12 I/O pins handle multiple switch inputs, relay/MOSFET drivers, and LIN-bus-style half-duplex communication. The 768-byte OTP stores lookup tables for switch debounce, PWM dimming, and fault-handling routines. The 18-SOIC package is compatible with automated optical inspection and selective soldering processes used in tier-1 automotive PCB assembly. For new designs, Microchip recommends the AEC-Q100-qualified PIC16F54 family.
Được đề xuất
Battery-Powered Sensor Signal Conditioning
The PIC16C54-RCE/SO's CMOS design draws microamp-level quiescent current from a 2.5 V to 6.25 V supply, suiting battery-powered sensor interfaces for HVAC, weather stations, and portable instrumentation. The 8-bit TMR0 plus watchdog timer support sleep-mode duty cycling, extending battery life to multi-year horizons on 2x AA cells. The RC oscillator eliminates crystal start-up time, enabling fast wake-up from sleep. With 12 I/O pins, the MCU can scan multiple analog sensors via external ADC or comparator ICs and drive an LCD or LED indicator. Industrial temperature grade tolerates outdoor enclosures.
Được đề xuất
Simple Closed-Loop PID Controller
Deterministic 200 ns instruction timing makes the PIC16C54-RCE/SO well suited for compact PID controllers managing temperature, flow, or motor-speed loops at modest update rates (1-10 kHz). The 768-byte OTP comfortably holds a 50-100-line PID algorithm with setpoint ramps, integral clamping, and derivative filtering. The 8-bit TMR0 provides a stable time base for the control loop period. Brown-out reset and watchdog timer ensure the loop recovers from supply glitches or code runaway. Designers port legacy 16C5X assembly code to this part with no instruction-set learning curve.
Được đề xuất
Consumer Appliance User Interface
White-goods and small kitchen appliances use the PIC16C54-RCE/SO to scan capacitive or resistive keypads, drive 7-segment LED displays, and control triac-switched loads (motors, heaters, valves). The 12 I/O pins multiplex 4-digit displays with 7 segments plus decimal point using Charlieplexing or direct drive. 768 bytes of OTP hold menu state machines, beep patterns, and timing profiles. The RC oscillator and 5 V single-supply operation simplify the analog front-end for triac zero-crossing detection. Extended temperature tolerance handles oven-adjacent and refrigeration environments.
Được đề xuất
Industrial Timer and Sequencer
Industrial control panels use the PIC16C54-RCE/SO as a multi-channel timer/sequencer with millisecond-to-hour resolution. The 8-bit TMR0 with prescaler gives a 1:256 ratio for flexible tick generation; a software counter extends the range to hours. Twelve I/O pins drive relay coils, indicator LEDs, and accept start/stop/reset inputs. The RC oscillator's tolerance is acceptable for non-precision timing; for crystal-accurate applications, the PIC16C54-XT/SO variant uses an external resonator. Extended temperature and watchdog timer make it robust in factory-floor enclosures with electrical noise and temperature swings.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C54-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 | PIC16C54-RC/SO | PIC16C54C-04/SO | PIC16C54C-04I/SO | PIC16C54A-20/SO | PIC16F54-I/SO |
|---|---|---|---|---|---|---|
| Package | 18-SOIC | 18-SOIC | 18-SOIC | 18-SOIC | 18-SOIC | 18-SOIC |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory Type | 768B OTP | 768B OTP | 768B OTP (CMOS rev) | 768B OTP (CMOS rev) | 768B OTP (A rev) | 768B Flash |
| Maximum Clock Frequency | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz | 20 MHz |
| Operating Temperature | -40C to +125C | -40C to +85C | 0C to +70C | -40C to +85C | -40C to +85C | -40C to +85C |
| RAM | 25 bytes | 25 bytes | 25 bytes | 25 bytes | 25 bytes | 25 bytes |
| I/O Pins | 12 | 12 | 12 | 12 | 12 | 12 |
| Oscillator | RC | RC | RC (CMOS rev) | RC (CMOS rev) | RC | RC/HS/LP/XT (selectable) |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | Active |
| Unit Price (qty 1, USD) | 2.26 | 2.10 | 1.95 | 2.05 | 2.40 | 1.30 |
Bảo phân biệt quan trọng
- Extended temperature grade for harsh-environment designs (vsPIC16C54-RC/SO)
- Flash memory for in-circuit reprogramming (vsPIC16C54-RCE/SO)
- Improved CMOS silicon revision (vsPIC16C54C-04/SO)
Ghi chú thiết kế
Place a 0.1 uF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 11) and a bulk capacitor (4.7-10 uF) at the board power entry. Keep the MCLR trace (pin 10) as short as possible; if not used as a reset input, tie it directly to VDD through a 10 kohm pull-up to avoid spurious resets from injected noise.
The 'RC' oscillator option requires an external resistor and capacitor; the absolute frequency tolerance is typically +/- 20% over temperature and voltage. For timing-sensitive applications (UART, IR carrier accuracy better than +/- 5%), select the XT, HS, or LP oscillator variant instead (e.g., PIC16C54-XT/SO). The 4 MHz ceiling on the RCE variant limits instruction throughput to 5 MIPS.
Estimated: at VDD=5 V and 4 MHz active current of approximately 2 mA, the PIC16C54-RCE/SO draws roughly 10 mW. In sleep mode (watchdog disabled), quiescent current drops below 1 uA, enabling multi-year battery life on 2x AA cells with a 0.1% duty cycle. Enable the watchdog timer (WDTE configuration bit) to recover from unexpected code lockups in unattended sensor installations.
Route all I/O traces away from the OSC1/OSC2 pins to minimize capacitive coupling that detunes the RC oscillator. For mixed-signal designs with the PIC16C54 driving sensitive analog loads, separate digital and analog ground planes and join them at a single point near the VSS pin (pin 7). Leave pin 18 (NC) floating or grounded per datasheet package outline; it is not bonded internally.
Thông tin tuân thủ
RoHS and lead-free per Microchip product page. PIC16C54 family is not AEC-Q100 qualified; for AEC-Q100 automotive applications use PIC16F54-Q1 or PIC18F-Q1 family.
