PIC16C57-LP/SP - 8-Bit 40MHz 3KB OTP MCU 28-SPDIP | Microchip
部品番号: PIC16C57-LP/SP ✗ 生産終了| 数量 | 単価 | 小計 |
|---|---|---|
| 1 | $4.8 | $4.80 |
| 10 | $4.32 | $43.20 |
| 100 | $3.86 | $386.00 |
| 500 | $3.47 | $1,735.00 |
| 1,000 | $3.08 | $3,080.00 |
PIC16C57-LP/SP 概要
A baseline PIC (Peripheral Interface Controller) microcontroller is a compact RISC processor that integrates CPU core, non-volatile program memory (ROM/EPROM/Flash), volatile data RAM, and configurable I/O on a single die. The PIC16C5X sub-family belongs to Microchip's original 12-bit instruction baseline architecture, sitting beneath the mid-range PIC14/16 enhanced core but above 4-bit and 8-bit PIC10/12 devices in capability, and it is one of the earliest families in the broader PICmicro hierarchy that eventually grew into today's PIC18, dsPIC, and PIC32 product lines.
Key features of the PIC16C57-LP/SP include: 2K x 12-bit OTP program memory (single-programmed, not re-programmable in-circuit), 72 bytes of general-purpose RAM, 20 bidirectional digital I/O pins arranged across ports A/B/C, an 8-bit timer/counter (TMR0) with 8-bit prescaler, watchdog timer with on-chip RC oscillator, power-on reset, brown-out protection (depending on configuration), and an LP (low-power) oscillator option suited for 32.768 kHz crystal operation. The RISC architecture executes most instructions in a single 200 ns cycle at 20 MHz, achieving approximately 5 MIPS throughput.
Typical applications include low-power consumer appliances, simple sensor interfaces, battery-operated controllers, automotive body electronics (pre-CAN era), remote controls, and industrial counter/timer modules where small code size, deterministic instruction timing, and through-hole serviceability matter more than flash re-programmability.
When designing with this part, note that OTP memory cannot be erased or rewritten - firmware must be fully validated on a windowed or flash equivalent before committing. The /SP package is the 28-pin SPDIP variant; for surface-mount assembly choose the /SO (SOIC-28) or /SS (SSOP-28) siblings.
This page synthesizes distributor pricing, drop-in PIC16C5X siblings, and practical design notes not aggregated in any single manufacturer datasheet or distributor page.
ドロップイン代替品: PIC16C57-LP/SP — 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: PIC16C57-LP/SP （同一形状・フットプリント） — 相違点: Package, Program Memory Size, Timers, Core Architecture, Watchdog Timer.
クイック比較ツール — 並列比較する代替部品を選択:
PIC16C57-LP/P
✅ ドロップイン✓ 在庫あり
$1.74 / 個
データシートを見る →PIC16C57-HSI/SP
✅ ドロップイン✓ 在庫あり
$2.7 / 個
データシートを見る →PIC16C57-HSI/P
✅ ドロップイン✓ 在庫あり
$1.89 / 個
データシートを見る →PIC16C57-HS/P
✅ ドロップイン✓ 在庫あり
$4.62 / 個
データシートを見る →PIC16F57-I/SP
✅ ドロップイン📋 参考代替品（カタログ未掲載）
PIC16C57C-40/P
✅ ドロップイン✓ 在庫あり
$3.82 / 個
データシートを見る →PIC16C57-10I/P
✅ ドロップイン✓ 在庫あり
$1.75 / 個
データシートを見る →PIC16C57-LP/SP 最大定格＆電気的特性
| Product Family | PIC16C5X baseline MCU |
| Core Architecture | 8-bit RISC (12-bit instruction width) |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 3 KB (2K x 12-bit words) |
| RAM Size | 72 bytes |
| 最大クロック周波数 | 40 MHz |
| Instruction Cycle Time | 200 ns (at 20 MHz clock) |
| Number of I/O Pins | 20 |
| Number of Timers | 1 x 8-bit (TMR0) |
| Supply Voltage Range | 3.0 V to 6.0 V |
| 動作温度範囲 | 0C to +70C (commercial) |
| パッケージ | 28-pin SPDIP (0.300 inch, 7.62 mm) |
| Oscillator Mode | LP (Low-Power, crystal) |
| 実装タイプ | Through-Hole (DIP) |
| MSLレベル | Not applicable (through-hole, no moisture sensitivity classification) |
PIC16C57-LP/SP ピン構成
| ピン 1 | RA2 — Bidirectional digital I/O port A bit 2 |
| ピン 2 | RA3 — Bidirectional digital I/O port A bit 3 |
| ピン 3 | RTCC — TMR0 timer/counter external clock input |
| ピン 4 | MCLR — Master Clear (reset) input, active low |
| ピン 5 | VSS — Ground reference |
| ピン 6 | RB0 — Bidirectional digital I/O port B bit 0 |
| ピン 7 | RB1 — Bidirectional digital I/O port B bit 1 |
| ピン 8 | RB2 — Bidirectional digital I/O port B bit 2 |
| ピン 9 | RB3 — Bidirectional digital I/O port B bit 3 |
| ピン 10 | RB4 — Bidirectional digital I/O port B bit 4 |
| ピン 11 | RB5 — Bidirectional digital I/O port B bit 5 |
| ピン 12 | RB6 — Bidirectional digital I/O port B bit 6 |
| ピン 13 | RB7 — Bidirectional digital I/O port B bit 7 |
| ピン 14 | VDD — Positive supply voltage (3.0V to 6.0V) |
| ピン 15 | OSC2 — Crystal/oscillator output |
| ピン 16 | OSC1 — Crystal/oscillator input (LP crystal configuration) |
| ピン 17 | RC0 — Bidirectional digital I/O port C bit 0 |
| ピン 18 | RC1 — Bidirectional digital I/O port C bit 1 |
| ピン 19 | RC2 — Bidirectional digital I/O port C bit 2 |
| ピン 20 | RC3 — Bidirectional digital I/O port C bit 3 |
| ピン 21 | RC4 — Bidirectional digital I/O port C bit 4 |
| ピン 22 | RC5 — Bidirectional digital I/O port C bit 5 |
| ピン 23 | RC6 — Bidirectional digital I/O port C bit 6 |
| ピン 24 | RC7 — Bidirectional digital I/O port C bit 7 |
| ピン 25 | RA0 — Bidirectional digital I/O port A bit 0 |
| ピン 26 | RA1 — Bidirectional digital I/O port A bit 1 |
| ピン 27 | VDD — Positive supply voltage (second VDD pin) |
| ピン 28 | VSS — Ground reference (second VSS pin) |
主な用途
PIC16C57-LP/SP の用途: 6 件s: Low-Power Battery-Operated Controllers, Simple Sensor Interface / Data Logger Front-End, Consumer Appliance Control, Remote Control and IR Transmitter, Industrial Counter / Timer Modules, Automotive Body Electronics (Pre-CAN Legacy).
Low-Power Battery-Operated Controllers
The PIC16C57-LP/SP's LP (Low-Power) crystal oscillator mode and 3.0V minimum supply voltage make it well suited for battery-powered controllers running from a 3.3V or two-AA-cell source. With 72 bytes of RAM, 20 digital I/O lines, and 3 KB of OTP program space, the part can wake periodically from sleep, read sensors, and control actuators before returning to low-current standby. Designers should validate current draw against datasheet figures because OTP programming draws higher peak current than run-mode operation.
おすすめ
Simple Sensor Interface / Data Logger Front-End
The PIC16C57-LP/SP offers 20 digital I/O pins and an 8-bit TMR0 counter with 8-bit prescaler, which is sufficient to read multiple digital sensors and generate timestamps for low-rate logging applications. The 3 KB OTP program space is enough for typical sensor conditioning, thresholding, and UART-output firmware. Per the PIC16C5X datasheet, the baseline core executes instructions deterministically in a fixed 200 ns cycle at 20 MHz, simplifying real-time scheduling.
おすすめ
Consumer Appliance Control
In small kitchen or personal-care appliances, the PIC16C57-LP/SP can replace discrete logic by reading keypads, driving LEDs or seven-segment displays, and controlling relays or triacs via its 20 I/O pins. The 3 KB OTP program space is typically sufficient for state-machine firmware with debouncing and timing routines. The through-hole 28-SPDIP package simplifies hand-prototyping and field-repair work, which is valuable for low-volume specialty appliance products.
おすすめ
Remote Control and IR Transmitter
The PIC16C57-LP/SP's low-power oscillator mode and small code footprint suit it for handheld IR or RF remote controls, where the MCU encodes button presses into modulated carrier bursts. The 20 I/O pins can scan a matrix keypad of up to roughly 4x5 keys, while TMR0 generates the carrier frequency. Battery life is dominated by IR-LED current, but the LP oscillator minimizes quiescent draw between button presses per the PIC16C5X datasheet.
おすすめ
Industrial Counter / Timer Modules
Industrial counter modules benefit from the PIC16C57-LP/SP's deterministic instruction timing, single 8-bit timer with prescaler, and robust SPDIP package. With 20 I/O lines the part can interface to multiple encoder inputs, indicator LEDs, and simple HMI keypads. The OTP memory requires that production firmware be finalized on a windowed PIC16C57/JW or PIC16F57-I/SP development platform before committing to the OTP device for volume production.
おすすめ
Automotive Body Electronics (Pre-CAN Legacy)
Older automotive body controllers - such as simple lighting, mirror, or seat modules - often deployed the PIC16C57-LP/SP because of its wide supply range, deterministic 8-bit core, and automotive-grade pedigree. The 20 I/O pins drive relays, read switches, and communicate via LIN or PWM. Note that modern automotive designs now require AEC-Q100 qualification, so the PIC16C57-LP/SP is typically found only in service-replacement scenarios, not new platforms.
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: PIC16C57-LP/SP — 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 | PIC16C57-LP/P | PIC16C57-HSI/SP | PIC16F57-I/SP | PIC16C57-10I/P |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-pin SPDIP (0.300 inch) | 28-pin PDIP (0.300 inch) - same | 28-pin SPDIP - same | 28-pin SPDIP - same | 28-pin PDIP - same |
| Program Memory Type | OTP EPROM | OTP EPROM | OTP EPROM | Flash (reprogrammable) | OTP EPROM |
| Program Memory Size | 3 KB (2K x 12) | 3 KB | 3 KB | 3 KB | 3 KB |
| Maximum Clock Frequency | 40 MHz | 40 MHz | 40 MHz | 20 MHz | 10 MHz |
| Oscillator Mode | LP (Low-Power crystal) | LP | HSI (high-speed internal) | LP | LP/RC selectable |
| Operating Temperature Range | 0C to +70C (commercial) | 0C to +70C | 0C to +70C | -40C to +85C (industrial) | -40C to +85C (industrial) |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Active (recommended for new design) | Obsolete |
| In-Circuit Reprogrammable | No (OTP EPROM) | No | No | Yes (Flash) | No |
主な差別化要因
- OTP EPROM memory - one-time programmable （vs PIC16F57-I/SP)
- LP (Low-Power) crystal oscillator configuration （vs PIC16C57-HSI/SP)
- 20 digital I/O pins in 28-pin SPDIP （vs PIC16C55 (20-pin DIP PIC16C5X))
設計ノート
The PIC16C57-LP/SP is OTP - it cannot be erased or re-programmed after the first write. Engineers should validate firmware on a windowed PIC16C57/JW ceramic package or, more practically, on the flash-based PIC16F57-I/SP sibling (same 28-SPDIP pinout) before committing the OTP device for production. Failing to do this leads to scrapping fully-assembled boards if a firmware bug is discovered late in the build cycle.
The 'LP' suffix in PIC16C57-LP/SP means the device is configured for a Low-Power crystal oscillator (typically 32.768 kHz watch crystal). For higher-speed designs the user must select the HS, XT, or RC oscillator variant - substituting an HS crystal on an LP-configured part will not start the oscillator reliably at cold temperatures, per the Microchip PIC16C5X datasheet oscillator configuration table. Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of each VDD pin.
The 28-pin SPDIP package has 2.54 mm (0.100 inch) pin pitch suitable for standard through-hole prototyping, IC sockets, and wire-wrap construction. Place the MCLR pull-up resistor (typically 10 kohm) close to pin 4 to avoid spurious resets on noisy supplies. If using the on-chip watchdog timer, route the MCLR line away from switching nodes to prevent coupled transients from triggering resets.
Because the PIC16C57-LP/SP runs at up to 40 MHz internal instruction rate, keep the crystal traces short and surround them with a ground guard ring if the board is otherwise noisy. TMR0 input (pin 3) should be guarded from high-current switching traces to avoid false timer counts. Place I/O connectors at the board edge to keep the analog or sensor wiring short, reducing the chance of latch-up on the CMOS I/O pins when ESD strikes.
コンプライアンス情報
RoHS/REACH status not stated in the verified distributor data; the part is obsolete and may have been originally released before current RoHS declarations were standardized. Microchip product page (https://www.microchip.com/en-us/product/PIC16C57) is the authoritative source for current compliance certificates. The PIC16C57-LP/SP itself is not AEC-Q100 qualified; for automotive applications consult the PIC16F57 family data.
