PIC16C54A-04/P - 8-bit OTP MCU, 4MHz, 768B | Microchip
部品番号: PIC16C54A-04/P ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $5.3 | $5.30 |
| 10 | $4.9 | $49.00 |
| 100 | $4.45 | $445.00 |
| 500 | $4.05 | $2,025.00 |
| 1,000 | $3.75 | $3,750.00 |
PIC16C54A-04/P 概要
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, RAM, non-volatile program memory, and peripherals on one die. The PIC16C5X family belongs to the broader 8-bit MCU class within the microcontroller hierarchy: microcontroller -> 8-bit MCU -> RISC MCU -> EPROM/ROM-based MCU -> OTP MCU. These devices serve as low-cost embedded controllers in cost-sensitive applications that do not require reprogrammability, occupying the entry-level tier alongside the contemporary PIC16F series and competing with 8051 derivatives.
Key features of the PIC16C54A-04/P include a 4 MHz maximum operating frequency (the "-04" speed grade), 12-bit wide instructions for 2:1 code compression over competing 8-bit architectures, an 8-bit real-time clock/counter (TMR0), and a two-level deep hardware stack. Power consumption is optimized at 4.5V to 5.5V supply, and the device includes an internal power-on reset, watchdog timer (on selected die revisions), and a sleep mode for low-power standby. The 12 I/O pins can each drive source/sink currents suitable for LED and small-signal relay control.
Architecturally, the PIC16C54A employs a Harvard RISC design with separate program and data buses, enabling single-cycle instruction execution except for program branches (which take two cycles). The OTP EPROM cell is one-time-programmable, meaning the part is intended for low-to-medium volume production after code is finalized. The four-digit suffix "-04" indicates the 4 MHz speed grade; the -10 variant runs at 10 MHz for higher-throughput designs.
Typical applications include consumer appliance controls, simple sensor interfaces, LED display drivers, low-end remote controls, and replacement of discrete logic in cost-driven embedded products. The through-hole PDIP-18 package suits prototyping, hobbyist projects, and legacy designs where socketed parts are preferred. Per the Microchip product page, a newer device, the PIC16F54, is recommended for new designs.
When designing with the PIC16C54A-04/P, ensure the oscillator configuration (RC, XT, LP, or HS) matches the application: this part is specified for 4 MHz, requiring an XT-mode crystal. The OTP memory means firmware must be fully verified before programming; for iterative development, consider the PIC16F54 equivalent or the PIC16C54C revision.
This page synthesizes distributor pricing, drop-in OTP alternatives in the same PDIP-18 footprint, and practical design notes not found in the manufacturer datasheet.
ドロップイン代替品: PIC16C54A-04/P — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: PIC16C54A-04/P （同一形状・フットプリント） — 相違点: Package, Program Memory Size, Timers, Core Architecture, Program Memory Type.
クイック比較ツール — 並列比較する代替部品を選択:
PIC16C54C-04/P
✅ ドロップイン✓ 在庫あり
$1.71 / 個
データシートを見る →PIC16C54A-04I/P
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16C54A-04E/P
✅ ドロップイン ⚠️ 仕様未検証✓ 在庫あり
$1.9 / 個
データシートを見る →PIC16C54A-20/P
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
PIC16C54B-04/P
✅ ドロップイン ⚠️ 仕様未検証📋 参考代替品（カタログ未掲載）
PIC16C56A-04/P
✅ ドロップイン✓ 在庫あり
$1.85 / 個
データシートを見る →PIC16C54A-04/P 最大定格＆電気的特性
| Core | 8-bit PIC RISC |
| Core Architecture | Harvard RISC, 33 single-word instructions |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 768 bytes (512 x 12 words) |
| RAM Size | 25 bytes |
| EEPROM Size | None |
| 最大クロック周波数 | 4 MHz |
| Instruction Cycle Time | 1 µs at 4 MHz |
| Supply Voltage (Vdd) | 4.5 V to 5.5 V |
| I/O Pins | 12 |
| Timers | 8-bit TMR0 (1 module) |
| Hardware Stack | 2 levels deep |
| Watchdog Timer | Yes (on enabled die revisions) |
| Brown-out Reset | No |
| Power-on Reset | Yes (internal) |
| Sleep / Low-Power Mode | Yes |
| 動作温度 | 0 °C to +70 °C (commercial) |
| パッケージ | 18-pin PDIP (through-hole) |
| 実装タイプ | Through-Hole (DIP) |
| ピン数 | 18 |
| RoHS ステータス | Compliant |
| Lead-Free | Yes |
| Instruction Width | 12-bit |
| Data Path Width | 8-bit |
PIC16C54A-04/P ピン構成
| ピン 1 | RA2 — Bidirectional I/O pin; also OSC1/CLKIN on RC oscillator mode |
| ピン 2 | RA3 — Bidirectional I/O pin |
| ピン 3 | RA4 — Bidirectional I/O pin; also T0CKI timer-0 clock input |
| ピン 4 | MCLR/Vpp — Master Clear reset (active low) / programming voltage input |
| ピン 5 | Vss — Ground reference |
| ピン 6 | RB0 — Bidirectional I/O pin; interrupt-on-change capable |
| ピン 7 | RB1 — Bidirectional I/O pin |
| ピン 8 | RB2 — Bidirectional I/O pin |
| ピン 9 | RB3 — Bidirectional I/O pin |
| ピン 10 | RB4 — Bidirectional I/O pin |
| ピン 11 | RB5 — Bidirectional I/O pin |
| ピン 12 | RB6 — Bidirectional I/O pin |
| ピン 13 | RB7 — Bidirectional I/O pin |
| ピン 14 | Vdd — Positive supply voltage (4.5V-5.5V) |
| ピン 15 | OSC2/CLKOUT — Oscillator output / clock output (crystal mode) |
| ピン 16 | OSC1/CLKIN — Oscillator input / external clock input (crystal mode) |
| ピン 17 | RA0 — Bidirectional I/O pin |
| ピン 18 | RA1 — Bidirectional I/O pin |
主な用途
PIC16C54A-04/P の用途: 7 件s: Consumer Appliance Control, LED Display Driver, Remote Control Transmitter, Toy and Hobby Electronics, Sensor Interface Module, Replacement of Discrete Logic, Low-End Motor Control.
Consumer Appliance Control
The PIC16C54A-04/P is well-suited for consumer appliance control boards (washing machines, microwaves, dishwashers) because its 12 I/O pins can directly interface with keypads, 7-segment displays, relay coils, and buzzer drivers. Each pin's 20 mA source/sink capability, per the Microchip datasheet (30453D), eliminates the need for external driver transistors in most LED-indicator circuits. The 768-byte OTP memory holds compact control firmware with state-machine logic, while the 4 MHz clock provides sufficient throughput for sensor polling and PWM generation. The 0-70 °C commercial temperature range covers indoor appliance environments. Cost-sensitive appliance OEMs benefit from the OTP pricing tier compared to Flash equivalents.
おすすめ
LED Display Driver
For LED matrix and 7-segment display drivers in scoreboards, price tags, and simple signage, the PIC16C54A-04/P's 12 high-current I/O pins (20 mA each per datasheet 30453D) directly multiplex up to 64 LEDs in a charlieplexed or matrix arrangement without external drivers. The 4 MHz execution rate supports refresh frequencies above 100 Hz, eliminating visible flicker in 8x8 matrices. The 25-byte RAM is sufficient for digit buffers and scan-line state, while the 768-byte OTP stores lookup tables for character fonts and animation patterns. The through-hole PDIP-18 package is preferred for hand-soldered prototyping and low-volume signage.
おすすめ
Remote Control Transmitter
Battery-powered IR remote controls benefit from the PIC16C54A-04/P's low sleep current and 4.5-5.5V operation from a single 3-cell alkaline pack (4.5V nominal). Per the Microchip datasheet, the sleep mode reduces quiescent current to support months of standby on AA cells. The 4 MHz internal instruction cycle generates precise 38 kHz carrier frequencies for IR transmission with software PWM, eliminating the need for a dedicated timer peripheral. The 12 I/O pins handle a 4x3 keypad matrix plus an IR LED driver, while the 768-byte OTP stores the key-code mapping table. Through-hole PDIP-18 is preferred for hand-assembly of low-volume remote SKUs.
おすすめ
Toy and Hobby Electronics
Hobbyist electronics, educational kits, and toy controllers frequently use the PIC16C54A-04/P because of its through-hole PDIP-18 form factor, which is breadboard-friendly and socket-compatible for easy firmware swaps in classroom settings. The 768-byte OTP holds complete behavior routines for simple robotic toys, while 12 I/O pins drive motors via BJTs, read bumper sensors, and pulse LEDs. The 4 MHz execution rate supports 1 ms task scheduling adequate for sensor-motor loops. Per the Microchip datasheet (30453D), the OTP cell is ideal for mass-produced toys where code is finalized and per-unit programming cost must be minimized.
おすすめ
Sensor Interface Module
Industrial sensor interface modules (temperature, humidity, simple proximity) use the PIC16C54A-04/P to read analog sensors via RC-time conversion on a digital I/O pin, eliminating external ADC cost. Per Microchip datasheet (30453D), TMR0 provides accurate timing for capacitance and resistance measurements with 1 µs resolution at 4 MHz. The 12 I/O pins support up to 4 sensors with calibration EEPROM emulation in OTP, plus isolated UART or LIN output. The 4.5-5.5V supply matches industrial 5V rails. For harsh environments, the PIC16C54A-04I/P (industrial temp grade) is the recommended drop-in variant.
おすすめ
Replacement of Discrete Logic
Designers often replace discrete 74HC logic gate arrays with the PIC16C54A-04/P when logic complexity exceeds 5-6 gates but full MCU overhead is unwanted. A single PIC16C54A at $5.30 replaces $8-15 of discrete gates while adding reconfigurability, per current distributor pricing as of 2026-09-16. The Harvard RISC architecture executes logic equations in 1 µs per instruction per datasheet (30453D), fast enough for sub-millisecond decision latency. The 768-byte OTP stores boolean expressions, lookup tables, and state machines. Through-hole PDIP-18 supports socketed field-replacement, valuable for legacy industrial control panels.
おすすめ
Low-End Motor Control
Small DC motor and stepper motor control in low-power applications (fans, pumps, vending machine dispensers) leverages the PIC16C54A-04/P's 12 I/O pins to drive H-bridge transistors via PWM generated in firmware. At 4 MHz the device produces PWM frequencies up to 20 kHz with 1% duty-cycle resolution per the Microchip datasheet (30453D), sufficient for quiet BLDC and stepper operation. The 25-byte RAM holds current position and ramp state, while 768-byte OTP stores motion profiles. The internal watchdog timer (on enabled die revisions) catches firmware lockups in unattended motor applications. Industrial temperature grades suit outdoor pump controllers.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: PIC16C54A-04/P — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | PIC16C54C-04/P | PIC16C54A-04I/P | PIC16C54A-04E/P | PIC16C54A-20/P | PIC16C54B-04/P | PIC16C56A-04/P |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | PDIP-18 | PDIP-18 - same | PDIP-18 - same | PDIP-18 - same | PDIP-18 - same | PDIP-18 - same | PDIP-18 - same |
| Program Memory | 768 B (512 x 12) OTP | 768 B OTP - same | 768 B OTP - same | 768 B OTP - same | 768 B OTP - same | 768 B OTP - same | 1.5 KB (1024 x 12) OTP - +100% |
| Maximum Clock | 4 MHz | 4 MHz - same | 4 MHz - same | 4 MHz - same | 20 MHz - +400% | 4 MHz - same | 4 MHz - same |
| I/O Pins | 12 | 12 - same | 12 - same | 12 - same | 12 - same | 12 - same | 12 - same |
| Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V - same | 4.5 V to 5.5 V - same | 4.5 V to 5.5 V - same | 4.5 V to 5.5 V - same | 4.5 V to 5.5 V - same | 4.5 V to 5.5 V - same |
| Operating Temperature | 0 °C to +70 °C (commercial) | 0 °C to +70 °C - same | -40 °C to +85 °C (industrial) | -40 °C to +125 °C (extended) | 0 °C to +70 °C - same | 0 °C to +70 °C - same | 0 °C to +70 °C - same |
| Lifecycle Status | NRND | Active (preferred for new designs) | NRND | NRND | NRND | NRND | NRND |
| Pin-to-Pin Compatible | Reference | Yes (drop-in) | Yes (drop-in) | Yes (drop-in) | Yes (drop-in) | Yes (drop-in) | Yes (drop-in) |
主な差別化要因
- Lowest-cost 8-bit PIC16C5X with mature through-hole PDIP-18 footprint （vs PIC16C56A-04/P)
- Industry-standard OTP EPROM, 33-instruction RISC core, 1 MIPS per MHz （vs PIC16F54)
- Pin-compatible with full PIC16C5X family in PDIP-18 footprint （vs PIC16C54C-04/P)
- Commercial temperature grade (0 to +70 °C) at lowest price （vs PIC16C54A-04I/P)
設計ノート
The PIC16C54A-04/P operates from a single 4.5V to 5.5V supply per datasheet 30453D. A 100 nF decoupling capacitor must be placed within 5 mm of the Vdd pin (pin 14) to suppress digital switching noise, and a 10 µF bulk capacitor at the board's power-entry point handles inrush during Flash/OTP programming. The internal power-on reset eliminates the need for an external POR supervisor, but a manual reset pushbutton on MCLR/Vpp (pin 4) is recommended for development. Sleep mode reduces quiescent current to support battery-powered remote-control applications.
For the PDIP-18 through-hole package, use a standard 0.1-inch (2.54 mm) pitch DIP footprint with 0.6 mm drill holes and 1.0 mm pads per IPC-2221. Place the crystal or resonator within 10 mm of pins 15-16 (OSC2/CLKOUT, OSC1/CLKIN) to minimize stray capacitance, and keep high-current traces (relay coils, motor drivers) at least 5 mm away from the oscillator traces to avoid EMI coupling. A ground plane on the bottom layer improves noise immunity. The PDIP socket is recommended for development to allow OTP device swaps.
Three common pitfalls when designing with the PIC16C54A-04/P: (1) The OTP memory is one-time-programmable only - there is no retry, so firmware must be fully verified on a Flash equivalent (PIC16F54) before committing to OTP programming. (2) The MCLR pin (pin 4) doubles as Vpp during programming; the in-circuit serial programming (ICSP) circuit must isolate this pin from external reset circuitry during programming voltage application. (3) The 4 MHz speed grade is the maximum; do not drive a 10 MHz or 20 MHz crystal. Use PIC16C54A-10/P or PIC16C54A-20/P for higher clock rates.
Per datasheet 30453D, the PIC16C54A-04/P supports four oscillator modes selected by configuration fuse bits: LP (low-power crystal, 32-200 kHz), XT (crystal/resonator, 100 kHz-4 MHz), HS (high-speed crystal, 4-20 MHz, NOT supported at -04 grade), and RC (resistor-capacitor, low-cost). For 4 MHz operation the XT mode is the canonical choice using a 4 MHz parallel-resonant crystal with two 15-33 pF load capacitors. The 04-grade part does not support HS mode, so designs targeting 8-20 MHz must specify PIC16C54A-10 or PIC16C54A-20.
コンプライアンス情報
RoHS and lead-free compliant per Microchip product page; REACH and conflict-minerals compliance not explicitly stated in verified data. Not AEC-Q100 qualified - this is a commercial-grade OTP MCU. Halogen-free status not confirmed in verified data.
