PIC16C57-HS/SS - 8-Bit 20MHz OTP MCU 2KB EPROM | Microchip
MPN: PIC16C57-HS/SS ✗ Cuối đờiPIC16C57-HS/SS Tóm tắt
An 8-bit microcontroller (MCU) is a small, single-chip computer built around an 8-bit data path, a CPU, program memory, data RAM, and a fixed set of peripheral registers. The PIC16C5X architecture uses 12-bit-wide instructions and an 8-bit-wide data path, achieving roughly 2:1 code compression compared with other 8-bit MCUs in its class, and executes most instructions in a single 200 ns instruction cycle at 20 MHz. This combination of small footprint, deterministic execution, and low cost established the PIC16C5X family as the de-facto baseline for simple embedded control in the 1990s and is still emulated today in retro-arcade and industrial designs.
Key features of the PIC16C57-HS/SS include 12 I/O pins across two ports (RA0-RA3, RB0-RB7), an 8-bit real-time clock/counter (TMR0) with an 8-bit programmable prescaler, a watchdog timer, a two-level deep hardware stack, and direct/indirect/relative addressing modes for both data and instructions. Seven or eight special-function hardware registers handle all peripheral control, keeping the core die size minimal. The HS grade specifies a high-speed external crystal/ceramic resonator oscillator mode supporting up 20 MHz operation.
Architecturally, the PIC16C57-HS/SS uses a fully static CMOS RISC core, meaning clock frequency can be reduced arbitrarily for power savings without losing state. The Harvard memory architecture separates program (12-bit wide EPROM) and data (8-bit wide RAM) buses, eliminating the von Neumann fetch bottleneck. On-chip EPROM allows one-time-programmable (OTP) code storage, ideal for low-to-medium volume production where mask-ROM NRE is not amortized.
Typical applications include legacy industrial control, security/alarm panels, appliance controllers, automotive body electronics, simple sensor interfaces, arcade and pinball board replacement (the PIC16C57 is widely emulated in MAME), and consumer IR remote transmitters. The 28-SSOP package is suitable for hand-solder prototyping and reflow production alike.
A key design consideration is that the PIC16C57 family uses a 12-bit instruction word and lacks in-circuit serial programming (ICSP) on most packages; engineering samples or production units must be programmed externally with a device programmer such as the MPLAB PM3. Designers transitioning newer code should evaluate the pin-compatible PIC16F57 (Flash-based, ICSP-capable) as a same-footprint migration path.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes that complement, rather than duplicate, the official Microchip datasheet.
Bộ thay thế dễ dàng lắp đặt cho PIC16C57-HS/SS — 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 PIC16C57-HS/SS (cùng hình factor và footprint) — khác nhau ở Program Memory Size, Package, Program Memory Type, Timers, Watchdog Timer.
PIC16F57-I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C57C-20I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C57-10E/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C57C-04/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C57-HS/P
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16C56-HS/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C55-HS/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16C57-HS/SS Tỷ lệ tối đa & tính chất điện
| Family | PIC16C5X (PIC16C57) |
| Core | 8-bit RISC PIC |
| Instruction Width | 12-bit |
| Bề rộng đường dữ liệu | 8-bit |
| Program Memory Type | EPROM (OTP) |
| Program Memory Size | 2KB (2K x 12) |
| RAM | 72 bytes |
| Tần số xung maksimum | 20 MHz |
| Oscillator Type (Speed Grade) | HS - High-Speed crystal/ceramic resonator |
| Điện áp cung cấp | 4.5 V to 5.5 V (5V typical) |
| I/O Pins | 12 |
| Timers | 1 x 8-bit (TMR0) with 8-bit programmable prescaler |
| Watchdog Timer | Yes |
| Hardware Stack | 2-level deep |
| Hộp | 28-SSOP (5.30 mm / 0.209 in width) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | 0C to +70C (commercial) |
| Instruction Cycle Time | 200 ns @ 20 MHz |
Cấu hình chân PIC16C57-HS/SS
| Chân 1 | RA2 — Port A bit 2 (bidirectional I/O) |
| Chân 2 | RA3 — Port A bit 3 (bidirectional I/O) |
| Chân 3 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| Chân 4 | MCLR — Master Clear (reset, active low) |
| Chân 5 | VSS — Ground |
| Chân 6 | RB0 — Port B bit 0 (bidirectional I/O) |
| Chân 7 | RB1 — Port B bit 1 (bidirectional I/O) |
| Chân 8 | RB2 — Port B bit 2 (bidirectional I/O) |
| Chân 9 | RB3 — Port B bit 3 (bidirectional I/O) |
| Chân 10 | RB4 — Port B bit 4 (bidirectional I/O) |
| Chân 11 | RB5 — Port B bit 5 (bidirectional I/O) |
| Chân 12 | RB6 — Port B bit 6 (bidirectional I/O) |
| Chân 13 | RB7 — Port B bit 7 (bidirectional I/O) |
| Chân 14 | VSS — Ground (optional second VSS pin) |
| Chân 15 | OSC2 — Oscillator output (crystal/resonator) |
| Chân 16 | OSC1 — Oscillator input (crystal/resonator) |
| Chân 17 | RA0 — Port A bit 0 (bidirectional I/O) |
| Chân 18 | RA1 — Port A bit 1 (bidirectional I/O) |
| Chân 19 | VSS — Ground (optional third VSS pin) |
| Chân 20 | VDD — Positive supply (+5V) |
| Chân 21 | RB0 — Port B bit 0 (alternate pinout variant) |
| Chân 22 | RB1 — Port B bit 1 (alternate pinout variant) |
| Chân 23 | RB2 — Port B bit 2 (alternate pinout variant) |
| Chân 24 | RB3 — Port B bit 3 (alternate pinout variant) |
| Chân 25 | RB4 — Port B bit 4 (alternate pinout variant) |
| Chân 26 | RB5 — Port B bit 5 (alternate pinout variant) |
| Chân 27 | RB6 — Port B bit 6 (alternate pinout variant) |
| Chân 28 | RB7 — Port B bit 7 (alternate pinout variant) |
Ứng dụng tiêu biểu
PIC16C57-HS/SS phù hợp cho 6 Áp dụngs: Arcade Board Security MCU, Industrial Control Legacy Systems, Consumer Appliance Controllers, Automotive Body Electronics (Legacy), Remote Control and IR Transmitter, Security Alarm Panels.
Arcade Board Security MCU
The PIC16C57-HS/SS is widely deployed as the security/authentication MCU on legacy arcade PCBs such as the Psikyo SH404 series. Its 12-bit instruction set, deterministic 200 ns cycle, and OTP EPROM provide a tamper-resistant code store that is impractical to read without erasing. The 28-SSOP package fits densely-populated arcade boards, and the 20 MHz HS oscillator mode delivers the latency needed for boot-time self-checks. Designers replicating or replacing original firmware should match the instruction set exactly; the PIC16F57 in 28-SSOP is a pin-compatible Flash alternative for new builds.
Được đề xuất
Industrial Control Legacy Systems
Long-lifecycle industrial controllers, alarm panels, and HVAC actuators often embed the PIC16C57-HS/SS for I/O scanning, TMR0-based timing, and watchdog supervision. Its 12 I/O pins and 2KB EPROM are sufficient for 8-bit scheduling tasks such as relay sequencing and sensor multiplexing. The HS-grade 20 MHz clock allows real-time response under 50 µs, while the OTP EPROM code store is unaffected by industrial EMI. For maintenance replacements, PIC16F57-I/SS offers the same 28-SSOP footprint with Flash memory to support field re-flashing.
Được đề xuất
Consumer Appliance Controllers
White-goods appliances (washing machines, microwave ovens, dishwasher control boards) frequently used the PIC16C57-HS/SS as a low-cost main controller thanks to its 5V single supply, 12-bit RISC performance, and integrated watchdog. The 28-SSOP footprint accommodates both reflow and hand-solder assembly, while TMR0 with 8-bit prescaler provides accurate timing for motor PWM, valve control, and user-interface scanning. The 2KB EPROM holds typical appliance firmware with margin; replace with PIC16F57-I/SS when migrating to RoHS-compliant Flash designs.
Được đề xuất
Automotive Body Electronics (Legacy)
Older automotive body controllers (mirror adjusters, seat controllers, simple instrument clusters) used the PIC16C57-HS/SS where 8-bit timing and small code footprint were sufficient. The HS oscillator mode gives 20 MHz for CAN-software bit-banging or simple LIN-master timing, and the 12 I/O lines drive relays, switches, and LED indicators. For new automotive designs requiring AEC-Q100, however, designers should look to PIC16F57-Q1 or PIC16F1xx family; the PIC16C57-HS/SS itself is not AEC-Q100 qualified.
Được đề xuất
Remote Control and IR Transmitter
The PIC16C57-HS/SS, in lower-frequency XT or LP variants, was a common MCU in IR/RF remote controls and key fobs due to its tiny 28-SSOP footprint, low current draw, and deterministic execution. TMR0 with 8-bit prescaler generates 38 kHz carrier modulation for consumer IR protocols (RC-5, NEC) at negligible power. The OTP EPROM locks the encoding firmware against cloning. PIC16F57-I/SS in the same 28-SSOP package is recommended for current designs needing ICSP during prototyping.
Được đề xuất
Security Alarm Panels
The PIC16C57-HS/SS served as a control MCU in wired security alarm panels where its 12-bit RISC core scans sensor loops, drives sirens, and times entry/exit delays via TMR0. The HS-grade 20 MHz clock allows sub-millisecond loop scan rates, while the integrated watchdog prevents lockup faults. OTP EPROM resists firmware tampering by competitors. New alarm designs should consider PIC16F57-I/SS in 28-SSOP for ICSP and Flash flexibility, or migrate to PIC16F1xxx families with enhanced peripherals.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C57-HS/SS — 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 | PIC16F57-I/SS | PIC16C57C-20I/SS | PIC16C57-10E/SS | PIC16C56-HS/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Program Memory | 2KB EPROM (OTP) | 2KB Flash | 2KB EPROM (OTP) | 2KB EPROM (OTP) | 1KB EPROM (-50%) |
| Maximum Clock Frequency | 20 MHz (HS) | 20 MHz (HS) | 20 MHz (HS) | 10 MHz (E) -50% | 20 MHz (HS) |
| Memory Type | OTP EPROM | Flash (rewritable) | OTP EPROM | OTP EPROM | OTP EPROM |
| ICSP Support | No (external programmer required) | Yes | No | No | No |
| Operating Temperature | 0C to +70C (commercial) | -40C to +85C (industrial) | -40C to +85C (industrial) | -40C to +125C (extended) | 0C to +70C (commercial) |
| I/O Pins | 12 | 12 | 12 | 12 | 12 |
Bảo phân biệt quan trọng
- Flash-based, ICSP-capable upgrade path (vsPIC16C57-HS/SS (this part))
- Industrial temperature range (vsPIC16C57-HS/SS (0 to +70C commercial))
- Lower memory and pin count sibling for compact designs (vsPIC16C57-HS/SS (2KB EPROM))
Ghi chú thiết kế
The PIC16C57 family uses 12-bit instructions and lacks ICSP on most packages; firmware must be programmed externally with a device programmer such as the MPLAB PM3 before PCB assembly. Plan for a programming step in the production flow and stock pre-programmed parts. Designers should also verify the supply voltage tolerance (4.5-5.5V) and avoid 3.3V-only rails, which are out-of-spec for the PIC16C57-HS/SS.
Place the external crystal or ceramic resonator within 5 mm of the OSC1/OSC2 pins, with a solid ground plane on the second layer. Keep the MCLR pull-up resistor (typically 10 kΩ) close to the MCLR pin, and add a 100 nF decoupling capacitor on VDD adjacent to pin 20. For noisy industrial environments, add a ferrite bead in series with VDD and a 10 µF bulk capacitor near the MCU. The 28-SSOP footprint requires a slightly larger keep-out than SOIC due to lead pitch.
Estimated: at 20 MHz and 5V supply, the PIC16C57-HS/SS typically draws 5-10 mA active and less than 4 µA in sleep mode, depending on peripheral state. For battery-backed or low-power designs, leverage the SLEEP instruction plus TMR0-driven wakeup to drop average current by two orders of magnitude. Decouple VDD with both a 100 nF ceramic and a 10 µF tantalum to handle dynamic switching transients from PORTB output toggling.
Thông tin tuân thủ
RoHS and REACH compliance confirmed by Microchip for current production stock. Not AEC-Q100 qualified; automotive designers should evaluate PIC16F57-Q1 or PIC16F1xxx family instead. Original PIC16C57 family predates RoHS but current shipments are lead-free.
