PIC16C54C-04E/SO - 4MHz 8-bit OTP MCU, 18-SOIC | Microchip
MPN: PIC16C54C-04E/SO ✓ Hoạt độngPIC16C54C-04E/SO Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral I/O on one die. The PIC16C5x family is built on a 12-bit instruction-word RISC architecture and belongs to the broader category of 8-bit microcontrollers, which occupy the lowest tier of the embedded computing hierarchy: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. The PIC16C5x delivers 12-bit wide instructions that are highly symmetrical, yielding 2:1 code compression over other 8-bit microcontrollers in its class, and provides 12 digital I/O pins split across Ports A (5 pins) and B (8 pins).
Key specifications include a 2-stack hardware subroutine stack, 33 single-word instructions, a 2.0 us instruction cycle at 4MHz oscillator, and four interrupt sources. The OTP EPROM permits one-time field programming - the die is windowless, so code is permanent after programming. Watchdog timer with on-chip RC oscillator, power-on reset, and code-protection bit are integrated, and the device supports In-Circuit Serial Programming (ICSP) via RB6/RB7. Power-saving SLEEP mode drops quiescent current below 1 uA typical.
The PIC16C5x architecture uses a Harvard design with separate program and data buses, allowing instruction fetch and operand access in a single cycle. The device has 12 I/O pins with 25 mA sink/source capability per pin, suitable for directly driving LEDs and small relays. Compared with PIC16C54A revision parts, the PIC16C54C adds a higher-density 768-byte EPROM and improved ESD performance, while preserving the legacy 12-bit instruction set and 18-pin pinout for source compatibility.
Typical applications include appliance control, HVAC fan control, simple sensor interfaces, remote-control transmitters, automotive body electronics, and battery-powered consumer devices where code space is small and the BOM must be low cost. The extended temperature grade makes the -E suffix suitable for under-hood automotive subsystems and outdoor industrial sensor nodes.
When designing with the PIC16C54C-04E/SO, budget the 4MHz oscillator budget carefully: instruction cycle is 1/4 of Fosc, leaving 1 us per instruction at 4MHz. Place a 0.1 uF decoupling capacitor within 5 mm of VDD, and a bulk 10 uF tantalum or aluminum capacitor on the supply rail. Configure unused I/O pins as outputs to minimize SLEEP current draw.
This page synthesizes distributor pricing, drop-in same-package alternatives, comparison parameters, and practical design notes not found in the manufacturer datasheet alone, giving engineers a faster path to a validated BOM.
Bộ thay thế dễ dàng lắp đặt cho PIC16C54C-04E/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 PIC16C54C-04E/SO (cùng hình factor và footprint) — khác nhau ở Package, Program Memory Type, Core Architecture, Program Memory Size, Operating Temperature Range.
PIC16C54C-04/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C54A-04I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C54C-04E/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C54C-04/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C54C-04/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F54-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C54AT-20E/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C54C-04E/SO Tỷ lệ tối đa & tính chất điện
| Core Architecture | 8-bit PIC RISC (PIC16C5x family) |
| Instruction Word Width | 12 bits |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 768 bytes (512 x 12) |
| RAM Size | 25 bytes |
| Maximum Clock Speed | 4 MHz |
| Instruction Cycle at Fmax | 1.0 us |
| Supply Voltage Range | 3.0 V to 5.5 V |
| I/O Pins | 12 (PORTA 5 + PORTB 8 with 1 input-only) |
| Khoảng nhiệt độ hoạt động | -40 C to +125 C (Extended grade, -E) |
| Hardware Stack Depth | 2 levels |
| Number of Instructions | 33 single-word instructions |
| Interrupt Sources | 4 |
| Hộp | 18-SOIC (SOIC-18, 300 mil) |
| Kiểu lắp đặt | Surface Mount |
| Cấp MSL | 1 (unlimited floor life) |
| Số chân | 18 |
| Trạng thái RoHS | Compliant |
| Lead-Free | Yes |
Cấu hình chân PIC16C54C-04E/SO
| Chân 1 | RA2 — Bidirectional I/O port A bit 2 |
| Chân 2 | RA3 — Bidirectional I/O port A bit 3 |
| Chân 3 | RA4/RTCC — Bidirectional I/O / Timer0 clock input (Schmitt trigger) |
| Chân 4 | MCLR/VPP — Master Clear reset (active low) / Programming voltage input |
| Chân 5 | VSS — Ground reference |
| Chân 6 | RB0/INT — Bidirectional I/O port B bit 0 / External interrupt |
| 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 | RB6 — Bidirectional I/O port B bit 6 / ICSP clock |
| Chân 13 | RB7 — Bidirectional I/O port B bit 7 / ICSP data |
| Chân 14 | VDD — Positive supply voltage 3.0V to 5.5V |
| Chân 15 | OSC2/CLKOUT — Crystal/Resonator connection 2 / Clock output (Fosc/4) |
| Chân 16 | OSC1/CLKIN — Crystal/Resonator connection 1 / External clock input |
| Chân 17 | RA0 — Bidirectional I/O port A bit 0 |
| Chân 18 | RA1 — Bidirectional I/O port A bit 1 |
Ứng dụng tiêu biểu
PIC16C54C-04E/SO phù hợp cho 7 Áp dụngs: Appliance Control (Washing Machines, Dishwashers), HVAC Fan and Blower Control, Remote-Control Transmitters (Garage Doors, Toys), Battery-Powered Sensor Interfaces, Automotive Body Electronics (Mirror, Seat, Lighting), Low-Cost Consumer Toy Controllers, Industrial Sensor Signal Conditioning.
Appliance Control (Washing Machines, Dishwashers)
The PIC16C54C-04E/SO is well suited for white-goods control boards because its 768-byte OTP EPROM stores fixed motor-state and sensor-lookup logic, the 12 I/O pins drive relays and triacs, and the 4MHz instruction rate supports real-time pump and valve sequencing. Its -40C to +125C extended temperature range survives steam-room and under-cabinet heat. Drop it onto a washing-machine PCB with a 10uF supply bulk cap and 0.1uF decoupling, and a single chip replaces an entire discrete timer circuit at minimal BOM cost.
Được đề xuất
HVAC Fan and Blower Control
The PIC16C54C-04E/SO fits HVAC blower-speed controllers because its 12-bit RISC core executes a fan-curve lookup table in microseconds, its 25-byte RAM holds the most recent setpoint, and its 12 I/O pins drive triac gates and read thermistor dividers. The 3.0V to 5.5V supply range lets it share a 5V rail with triac-coupler optos. Compared to a 555-timer circuit, the PIC16C54C implements soft-start ramps and overcurrent lockout in software without analog RC tuning.
Được đề xuất
Remote-Control Transmitters (Garage Doors, Toys)
Battery-powered RF remote transmitters benefit from the PIC16C54C-04E/SO's sub-1uA SLEEP current and 33-instruction RISC core, which encodes button presses into encrypted rolling-code packets with minimal firmware overhead. The 768-byte OTP holds several rolling-code algorithms, and the 12 I/O pins multiplex matrix keypads up to 4x4. The extended -40C to +125C grade handles outdoor garage-door keypad installations exposed to direct sunlight and sub-freezing winters.
Được đề xuất
Battery-Powered Sensor Interfaces
Wireless sensor nodes running on CR2032 coin cells require microcontrollers with deep SLEEP currents under 1uA and the ability to wake on interrupt. The PIC16C54C-04E/SO meets this requirement with its SLEEP mode and the four interrupt sources on PORTB change-interrupt edges, enabling wake-on-motion designs. The 4MHz operation executes a full sensor-read-and-transmit cycle in under 2ms, keeping average current draw below 5uA at one transmission per minute.
Được đề xuất
Automotive Body Electronics (Mirror, Seat, Lighting)
The PIC16C54C-04E/SO handles body-electronics modules such as power-mirror controllers, seat-position memories, and interior LED dimmers because of its -40C to +125C operating range, 25 mA per-pin drive, and small SOIC-18 footprint that fits behind a dashboard switch cluster. Automotive designers benefit from the OTP EPROM's one-time-programmable security - the code cannot be read back through the ICSP interface, protecting proprietary seat-position algorithms from reverse engineering.
Được đề xuất
Low-Cost Consumer Toy Controllers
Toy manufacturers select the PIC16C54C-04E/SO for sub-$5 talking dolls and educational toys because the 768-byte OTP holds voice-pattern lookup tables, the 12 I/O pins drive speaker H-bridges and trigger buttons, and the 1.69 USD unit price meets aggressive toy BOM targets. The 33-instruction RISC core runs a simple state machine for interactive sequences, and the OTP EPROM prevents end-user firmware copying - a critical IP-protection requirement in the toy market.
Được đề xuất
Industrial Sensor Signal Conditioning
Industrial pressure and temperature transmitters use the PIC16C54C-04E/SO as a low-cost digital-front-end that linearizes thermocouple tables, drives 4-20mA current loops, and supervises watchdog timing. The -40C to +125C extended temperature grade handles factory-floor ambient swings, while the 4MHz instruction rate executes a 16-point linearization table in under 50us per measurement cycle. Compared with a dedicated signal-conditioner ASIC, the PIC16C54C delivers the same accuracy with field-reprogrammable scaling coefficients.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C54C-04E/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-04/SO | PIC16C54A-04I/SO | PIC16F54-I/SO | PIC16C54C-04E/P | PIC16C54AT-20E/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SOIC-18 | SOIC-18 - same | SOIC-18 - same | SOIC-18 - same | PDIP-18 - different footprint | SOIC-18 - same |
| Program Memory | 768 bytes OTP EPROM | 768 bytes OTP EPROM | 512 bytes OTP EPROM (-33%) | 768 bytes Flash (reprogrammable) | 768 bytes OTP EPROM | 512 bytes OTP EPROM (-33%) |
| Maximum Clock Speed | 4 MHz | 4 MHz | 4 MHz | 20 MHz | 4 MHz | 20 MHz |
| Operating Temperature | -40C to +125C | 0C to +70C | -40C to +85C | -40C to +85C | -40C to +125C | -40C to +125C |
| Program Memory Type | OTP EPROM | OTP EPROM | OTP EPROM | Flash | OTP EPROM | OTP EPROM |
| I/O Pin Count | 12 | 12 | 12 | 12 | 12 | 12 |
| Instruction Set | 12-bit (33 instructions) | 12-bit (33 instructions) | 12-bit (33 instructions) | 12-bit (33 instructions) | 12-bit (33 instructions) | 12-bit (33 instructions) |
Bảo phân biệt quan trọng
- Extended -40C to +125C operating temperature in 18-SOIC (vsPIC16C54C-04/SO)
- Largest program memory in PIC16C54 family (vsPIC16C54A-04I/SO)
- Surface-mount SOIC-18 footprint versus through-hole PDIP-18 (vsPIC16C54C-04E/P)
- Lowest unit price in the PIC16C5x SOIC family (vsPIC16F54-I/SO)
Ghi chú thiết kế
The PIC16C54C-04E/SO operates from a single 3.0V to 5.5V supply and draws approximately 2 mA active at 4MHz and below 1 uA in SLEEP mode per the manufacturer datasheet. Place a 0.1 uF decoupling capacitor within 5 mm of the VDD pin, and add a 10 uF bulk tantalum or aluminum capacitor on the supply rail if the source impedance exceeds 1 ohm. Configure all unused I/O pins as outputs tied low to minimize SLEEP current and to prevent floating-input shoot-through currents.
The OTP EPROM cannot be erased after programming - any firmware bug becomes a permanent hardware revision. Plan for an early-stage PIC16F54-I/SO Flash prototype, validate the code, then move to PIC16C54C-04E/SO OTP EPROM for volume production. Also note that the MCLR pin is active low and must be pulled high through a 10k resistor; leaving MCLR floating causes intermittent resets in noisy environments. The ICSP clock and data pins RB6 and RB7 must be isolated from high-impedance external circuitry during in-circuit programming.
Route the 4MHz crystal traces (OSC1/OSC2) as short as possible, keep them away from switching power lines, and surround them with a ground guard ring. Use a crystal or ceramic resonator with a load capacitance of 15 to 22 pF matching the manufacturer datasheet, and place the load capacitors within 3 mm of the OSC pins. For SOIC-18 board layout, allow 0.5 mm clearance between the SOIC body and adjacent traces to simplify hand-rework and inspection.
PORTB has TTL-level inputs while PORTA has CMOS-level Schmitt-trigger inputs, so external logic levels must match. PORTB pins RB0 through RB5 can be software-configured as interrupt-on-change sources for wake-up from SLEEP. The MCLR input is a Schmitt trigger with a 0.15VCC typical threshold, so a slow-rising power supply (rise time greater than 1 ms) may trigger a power-on reset glitch - add a 1 kohm pull-up and 0.1 uF cap to MCLR if the rise time exceeds 5 ms.
Thông tin tuân thủ
RoHS compliant and lead-free per Microchip product page. AEC-Q100 not qualified at the part level; for AEC-Q100 automotive applications, refer to Microchip's automotive-grade PIC16F family. Halogen-free status not explicitly stated in verified data.
