PIC16F57-I/P - 8-Bit 20MHz 3KB Flash MCU | Microchip | DIP-28
部品番号: PIC16F57-I/P ✓ 生産中| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $1.83 | $1.83 |
| 10 | $1.65 | $16.50 |
| 100 | $1.47 | $147.00 |
| 500 | $1.31 | $655.00 |
| 1,000 | $1.18 | $1,180.00 |
PIC16F57-I/P 概要
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU core, program memory (Flash/ROM), data RAM, peripheral set (timers, ADC, communication interfaces), and I/O on one die. PIC baseline microcontrollers sit at the entry level of Microchip's portfolio, above 4-bit legacy controllers and below mid-range PIC16 enhanced cores and PIC18/dsPIC33 16-bit families. The 8-bit MCU category targets cost-sensitive, deterministic embedded applications where instruction simplicity, low power, and small footprint outweigh raw throughput.
The PIC16F57 exposes 20 I/O pins across two ports (RA0-RA3 and RB0-RB7) plus dedicated OSC1/OSC2, MCLR, VDD, and VSS pins. Program memory is 3 KB Flash organized as 2K x 14 words; data RAM is 72 bytes; EEPROM is absent. A 200 ns instruction cycle at 20 MHz oscillator drives deterministic interrupt response, while the on-chip watchdog timer with its own RC oscillator adds fail-safe recovery. Reset is provided by power-on reset, brown-out detection, and watchdog time-out.
Typical applications include appliance control (washing machines, microwave ovens, HVAC), automotive body electronics (mirror controllers, lighting modules, simple sensor conditioning), industrial timers and counters, remote controls, toys, security keypads, and battery-charging controllers. The wide 2.0 V to 5.5 V supply range simplifies battery and unregulated-rail designs, while the 33 single-word instruction set keeps firmware development fast.
Designers should note the absence of an on-chip ADC, UART, and interrupts on this baseline core, which restricts use to polled, GPIO-driven logic. The 28-pin PDIP package eases breadboarding and field serviceability versus QFN alternatives. Watchdog enable/disable must be configured in configuration bits, not in firmware, and the MCLR pin must be pulled high via a 10 kohm resistor for normal operation.
ドロップイン代替品: PIC16F57-I/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: PIC16F57-I/P （同一形状・フットプリント） — 相違点: Package, Program Memory Size, Timers, Watchdog Timer, Core Architecture.
クイック比較ツール — 並列比較する代替部品を選択:
PIC16F57-I/SP
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16F57-E/P
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16F54-I/P
✅ ドロップイン✓ 在庫あり
$0.68 / 個
データシートを見る →PIC16F57-E/SP
✅ ドロップイン✓ 在庫あり
$1.42 / 個
データシートを見る →PIC16F527-I/P
✅ ドロップイン✓ 在庫あり
$0.86 / 個
データシートを見る →PIC16F505-I/P
✅ ドロップイン✓ 在庫あり
$1.05 / 個
データシートを見る →PIC16F57-I/P 最大定格＆電気的特性
| Architecture | PIC baseline 8-bit RISC |
| Instruction Set | 33 single-word instructions |
| Program Memory | 3 KB (2K x 14) Flash |
| Data RAM | 72 bytes |
| EEPROM | None |
| Maximum CPU Speed | 20 MHz (200 ns instruction cycle) |
| Supply Voltage (VDD) | 2.0 V to 5.5 V |
| 動作温度 | -40C to +85C (industrial, -I grade) |
| I/O Pins | 20 (PORTA 4-bit + PORTB 8-bit + shared) |
| Timers | 8-bit Timer0 with prescaler |
| Watchdog Timer | Yes, with dedicated on-chip RC oscillator |
| ADC | None (no on-chip ADC) |
| UART/USART | None |
| Interrupts | None |
| Oscillator Modes | RC, XT, HS, LP external; internal oscillator not present on PIC16F57 |
| パッケージ | 28-pin PDIP (DIP-28, 600 mil) |
| 実装タイプ | Through-Hole |
| MSLレベル | Not applicable (through-hole) |
| RoHS ステータス | Compliant (lead-free finish) |
| Brown-out Reset | Yes |
PIC16F57-I/P ピン構成
| ピン 1 | RA2 — Bidirectional I/O port A bit 2 |
| ピン 2 | RA3 — Bidirectional I/O port A bit 3 (input only on some PIC16F5x) |
| ピン 3 | RA4 — Bidirectional I/O port A bit 4 (open-drain on some devices) |
| ピン 4 | MCLR — Master clear reset input, active low, connect to VDD via 10 kohm |
| ピン 5 | VSS — Ground reference |
| ピン 6 | RB0 — Bidirectional I/O port B bit 0 |
| ピン 7 | RB1 — Bidirectional I/O port B bit 1 |
| ピン 8 | RB2 — Bidirectional I/O port B bit 2 |
| ピン 9 | RB3 — Bidirectional I/O port B bit 3 |
| ピン 10 | RB4 — Bidirectional I/O port B bit 4 |
| ピン 11 | RB5 — Bidirectional I/O port B bit 5 |
| ピン 12 | RB6 — Bidirectional I/O port B bit 6 |
| ピン 13 | RB7 — Bidirectional I/O port B bit 7 |
| ピン 14 | VDD — Positive supply voltage 2.0 V to 5.5 V |
| ピン 15 | OSC2 — Oscillator output, connects to crystal or resonator |
| ピン 16 | OSC1 — Oscillator input, connects to crystal, resonator, or external clock |
| ピン 17 | VDD — Positive supply voltage (secondary VDD pin) |
| ピン 18 | RA2 — Bidirectional I/O port A bit 2 (secondary pin) |
| ピン 19 | RA1 — Bidirectional I/O port A bit 1 |
| ピン 20 | RA0 — Bidirectional I/O port A bit 0 |
| ピン 21 | RA3 — Bidirectional I/O port A bit 3 (secondary pin) |
| ピン 22 | RA4 — Bidirectional I/O port A bit 4 (secondary pin) |
| ピン 23 | RA5 — Bidirectional I/O port A bit 5 |
| ピン 24 | RA6 — Bidirectional I/O port A bit 6 |
| ピン 25 | RA7 — Bidirectional I/O port A bit 7 |
| ピン 26 | VSS — Ground reference (secondary VSS pin) |
| ピン 27 | MCLR — Master clear reset input (secondary MCLR pin) |
| ピン 28 | RA0 — Bidirectional I/O port A bit 0 (secondary pin) |
主な用途
PIC16F57-I/P の用途: 7 件s: Washing Machine Control Board, Microwave Oven User Interface Controller, Automotive Lighting Control Module, Remote Control Transmitter (IR/RF), Industrial Counter and Timer Module, Battery Charger Controller (Lead-Acid / NiMH), Toy and Game Console Logic.
Washing Machine Control Board
The PIC16F57-I/P's 33-instruction RISC core and 3 KB Flash fit appliance control state machines exactly. The 20 I/O pins drive motor relays, valve solenoids, water-level switches, and a 7-segment display without external mux logic. The watchdog timer and brown-out reset protect against motor-induced brown-outs on the AC mains-derived 5 V rail. The -40C to +85C industrial grade handles laundry-room temperature swings, and the wide 2.0 V to 5.5 V supply tolerates unregulated 5 V rails. Compared to a PIC16F88x with ADC, this part skips the analog front-end cost for purely digital drum-cycle, fill, drain, and spin sequencing.
おすすめ
Microwave Oven User Interface Controller
A microwave oven keypad, rotary encoder, LCD/LED time display, and beeper driver map cleanly onto the PIC16F57-I/P's 20 I/O. The 3 KB Flash holds a lookup table for cooking-power presets, key debounce, and timer interrupt logic. The 200 ns instruction cycle gives sub-millisecond response to door-switch safety interlocks - critical for magnetron shutdown timing. The DIP-28 package lets service technicians desolder and replace the MCU in the field, lowering warranty repair cost. Brown-out reset catches power-line glitches during plug removal.
おすすめ
Automotive Lighting Control Module
Body-electronics modules (interior dimming, DRL logic, turn-signal flashers) run on the PIC16F57-I/P's deterministic instruction cycle for accurate flash cadence. The 20 MHz CPU drives PWM-like bit-banging for fade-up/fade-down effects using Timer0 with the watchdog as a backup safety timer. The -40C to +85C industrial grade handles cabin temperatures; the extended-grade PIC16F57-E/P variant covers under-hood nodes up to +125C. The 28-pin PDIP supports conformal-coated automotive PCBs and field-replacement serviceability. Compared to PIC16F627A-I/P, the F57 saves cost by skipping unused UART/ADC peripherals in pure-logic lighting nodes.
おすすめ
Remote Control Transmitter (IR/RF)
Handheld IR/RF remotes for TVs, fans, projectors, and toys need low cost, low power, and small code footprint - all matching the PIC16F57-I/P. The 3 KB Flash stores button scan tables and protocol patterns (NEC RC5, proprietary OOK). The 20 MHz clock with 200 ns instruction cycle generates 38 kHz carrier timing directly via bit-banging, eliminating an external oscillator or timer IC. The 2.0 V to 5.5 V supply runs on 2x AA or AAA cells. Brown-out reset prevents invalid IR transmits on weak batteries. No ADC or UART is needed - the design is purely polled GPIO.
おすすめ
Industrial Counter and Timer Module
Panel-mount production counters, hour meters, and machine-runtime loggers benefit from the PIC16F57-I/P's 20 MHz deterministic loop and watchdog-protected Timer0. The 20 I/O pins read quadrature encoders, limit switches, and start/stop buttons, while driving 7-segment LED displays via direct GPIO. The -40C to +85C industrial temperature grade handles factory-floor heat. Brown-out reset protects event counts during power glitches. With no ADC, this fits pure-digital counters better than a PIC16F88x. The wide 2.0 V to 5.5 V supply accepts 24 V industrial rails after a regulator.
おすすめ
Battery Charger Controller (Lead-Acid / NiMH)
Simple CC/CV chargers for lead-acid and NiMH battery packs use the PIC16F57-I/P to drive MOSFET gate signals via GPIO and Timer0 PWM-like bit-bang. The 3 KB Flash stores charge profile curves, temperature fold-back tables, and end-of-charge detection logic. The 2.0 V to 5.5 V supply runs from a 5 V regulator derived from the AC adapter. The watchdog timer restarts a hung charge cycle, and brown-out reset prevents over-discharge faults. Designers requiring analog sensing upgrade to PIC16F527-I/P for its on-chip 8-bit ADC.
おすすめ
Toy and Game Console Logic
Cost-sensitive electronic toys, talking dolls, and tabletop game consoles rely on the PIC16F57-I/P for sub-$2 BOM cost at modest volumes. The 3 KB Flash stores sound-effect trigger tables, LED animation patterns, and button scan routines. The 20 MHz clock handles multiplexed LED matrix refresh in software without an external driver. The DIP-28 package eases through-hole assembly at contract manufacturers in low-cost regions. Compared to a PIC16F88x, the F57 eliminates unused peripherals, saving 30-50% on unit cost. Industrial temperature grade suits indoor/outdoor toy use.
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: PIC16F57-I/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 | PIC16F57-I/SP | PIC16F57-E/P | PIC16F54-I/P | PIC16F57-E/SP | PIC16F527-I/P | PIC16F505-I/P |
|---|---|---|---|---|---|---|---|
| Package | 28-pin PDIP (600 mil) | 28-pin SPDIP (300 mil) | 28-pin PDIP (600 mil) | 28-pin PDIP (600 mil) | 28-pin SPDIP (300 mil) | 28-pin PDIP (600 mil) | 28-pin PDIP (600 mil) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 3 KB Flash | 3 KB Flash | 3 KB Flash | 1.5 KB Flash (-50%) | 3 KB Flash | 1.5 KB Flash (-50%) | 1.5 KB Flash (-50%) |
| Data RAM | 72 bytes | 72 bytes | 72 bytes | 25 bytes (-65%) | 72 bytes | 68 bytes | 72 bytes |
| CPU Speed | 20 MHz (200 ns) | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Operating Temperature | -40C to +85C (industrial) | -40C to +85C | -40C to +125C (extended) | -40C to +85C | -40C to +125C (extended) | -40C to +85C | -40C to +85C |
| ADC | None | None | None | None | None | 8-bit ADC integrated | 8-bit ADC integrated |
| Typical Unit Price (1 qty) | $1.83 | $1.85 | $2.10 | $1.40 | $2.15 | $2.20 | $1.75 |
主な差別化要因
- Largest program memory in PIC16F5x baseline DIP-28 family （vs PIC16F54-I/P)
- Cost-optimized vs PIC16F627A-I/P （vs PIC16F627A-I/P)
- Industrial temperature grade (-I) standard （vs PIC16F57-E/P)
設計ノート
The PIC16F57-I/P operates from 2.0 V to 5.5 V; place a 100 nF ceramic decoupling capacitor within 5 mm of each VDD pin (pins 14 and 17), with a bulk 10 uF tantalum or aluminum cap on the same rail. Brown-out reset is enabled by configuration bit and triggers at approximately 2.0 V to 4.0 V depending on BOR configuration. The MCLR pin MUST be tied to VDD through a 10 kohm resistor with a 100 nF cap to ground for noise immunity; leaving MCLR floating causes spurious resets.
Place the 20 MHz crystal (or ceramic resonator) within 10 mm of pins 15 (OSC2) and 16 (OSC1) to minimize stray capacitance. Use short, symmetric traces and a ground plane beneath the oscillator to reduce EMI pickup. For HS oscillator mode above 4 MHz, add 10-22 pF load capacitors to ground on each OSC pin per crystal manufacturer recommendations. The DIP-28 package allows hand-soldering and field replacement, but reserve at least 2 mm clearance around the part for desoldering braid access.
Configuration bits on PIC16F5x baseline parts are NOT reprogrammable at runtime - watchdog enable/disable, oscillator mode, code protection, and brown-out thresholds must be set at device programming time. Forgetting to enable the watchdog timer in configuration bits means firmware cannot recover from code lockups. Also note: PIC16F57 has NO hardware interrupts and NO ADC - do not write ISR code expecting interrupt vectors, and use external ADC (e.g., MCP3002) for analog inputs. The watchdog RC oscillator runs independently of the main crystal.
Estimated: at 20 MHz CPU clock and 5.0 V supply, the PIC16F57-I/P draws approximately 2-3 mA active (10-15 mW). In a 28-pin PDIP package with theta_JA of approximately 80 C/W, junction temperature rises negligibly above ambient (<2 C). Even at +85C ambient, the part remains well within its 150 C absolute maximum junction rating. No heatsink or thermal management is required for typical digital GPIO control applications, but derate clock frequency above +85C ambient per the datasheet electrical characteristics.
コンプライアンス情報
RoHS compliant per Microchip product page (lead-free matte-tin finish). The PIC16F57 is not AEC-Q100 qualified; for AEC-Q100 automotive applications, contact Microchip for PIC16F1x or PIC18 enhanced mid-range alternatives. Halogen-free status not explicitly listed in web data; mark as unknown.
