PIC16C57C-04E/SS - 8-bit OTP MCU 4MHz 3KB 28-SSOP | Microchip
料号： PIC16C57C-04E/SS ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.92 | $4.92 |
| 10 | $4.43 | $44.30 |
| 100 | $3.94 | $394.00 |
| 500 | $3.55 | $1,775.00 |
| 1,000 | $3.18 | $3,180.00 |
| 3,000 | $2.85 | $8,550.00 |
PIC16C57C-04E/SS 概述
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and peripheral interfaces into one package. The PIC16C57C falls under the broader taxonomy: microcontroller -> embedded controller -> 8-bit MCU -> RISC MCU -> CMOS OTP MCU -> semiconductor. As an OTP device it can be programmed exactly once, which makes it suited to high-volume fixed-function products rather than field-upgradeable designs.
Key features include 20 general-purpose digital I/O pins, a 4MHz internal operating frequency (-04 speed grade), 8-bit timer/counter resources, a watchdog timer for reliable unattended operation, power-on reset, brown-out detection, and a wide 3.0V to 5.5V supply range. The SSOP-28 footprint enables compact board layouts while still supporting hand-soldering or standard SMT lines.
Architecturally the device uses a Harvard RISC core with separate program and data paths, a 12-bit wide instruction word, and a two-stage pipeline. The CMOS process delivers low power consumption ideal for always-on appliances, while the OTP program memory gives designers stable firmware that cannot be read back through the external pins, providing a baseline level of code protection.
Typical applications include white-goods and small-appliance control boards, automotive body modules (non-safety), industrial sensor front ends, simple user-interface panels, and consumer remote-control transmitters. The wide operating voltage also makes it appropriate for 5V-regulated industrial nodes.
When designing with the PIC16C57C, allow adequate decoupling on VDD/VSS pairs, route MCLR with proper pull-up, and confirm the oscillator configuration matches the chosen resonator. OTP parts require pre-production verification via a windowed (JW) counterpart before committing the final code.
This page synthesizes distributor pricing, pin-compatible drop-in alternatives, and engineering design notes that go beyond the information in the bare datasheet, helping engineers shorten sourcing and BOM decisions.
直接替换替代料： PIC16C57C-04E/SS ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： PIC16C57C-04E/SS （相同外形与封装尺寸） ——差异在于 Package, Program Memory Size, Watchdog Timer, Timers, Maximum Clock Frequency.
快速对比工具——选择替代料号进行并排对比：
PIC16C57C-04/SS
✅ 直接替换✓ 有现货
$4.85 / 个
查看数据手册 →PIC16C57C-04I/SS
✅ 直接替换📋 参考替代料（不在目录中）
PIC16C57-10E/SS
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$3.78 / 个
查看数据手册 →PIC16C56A-20E/SS
✅ 直接替换✓ 有现货
$0.94 / 个
查看数据手册 →PIC16C57-10I/P
✅ 直接替换✓ 有现货
$1.75 / 个
查看数据手册 →PIC16C57C-04E/SS 最大额定值与电气特性
| Core Architecture | PIC 8-bit RISC (Harvard) |
| Program Memory Type | OTP (One-Time Programmable) EPROM |
| Program Memory Size | 3 KB (2K x 12 bits) |
| RAM Size | 72 bytes |
| Maximum CPU Frequency | 4 MHz (-04 speed grade) |
| Instruction Cycle Time | 100 ns (4 MHz, 1:1 clock) |
| Instruction Set Size | 33 single-word instructions (12-bit) |
| Supply Voltage (VDD) | 3.0 V to 5.5 V |
| I/O Pins | 20 general-purpose digital I/O |
| Package Type | SSOP-28 (Shrink Small Outline Package) |
| 安装类型 | Surface Mount |
| 工作温度 | -40 C to +125 C (E = Extended) |
| Timers | 8-bit Timer/Counter (TMR0) |
| Watchdog Timer | Yes (on-chip WDT with dedicated RC oscillator) |
| Reset Features | Power-on Reset (POR), Brown-out Reset (BOR) |
| Code Protection | OTP code-protection bit set during programming |
| RoHS 状态 | Compliant (lead-free SSOP) |
| AEC-Q100 Qualification | Not automotive qualified (use PIC16C57C-04E/SS only after review) |
PIC16C57C-04E/SS 引脚配置
| 引脚 1 | RA2 — Bidirectional I/O port A bit 2 |
| 引脚 2 | RA3 — Bidirectional I/O port A bit 3 |
| 引脚 3 | RA4/RTCC — I/O port A bit 4 / RTCC timer input |
| 引脚 4 | MCLR — Master clear reset input (active low) |
| 引脚 5 | VSS — Ground reference |
| 引脚 6 | RB0 — Bidirectional I/O port B bit 0 |
| 引脚 7 | RB1 — Bidirectional I/O port B bit 1 |
| 引脚 8 | RB2 — Bidirectional I/O port B bit 2 |
| 引脚 9 | RB3 — Bidirectional I/O port B bit 3 |
| 引脚 10 | RB4 — Bidirectional I/O port B bit 4 |
| 引脚 11 | RB5 — Bidirectional I/O port B bit 5 |
| 引脚 12 | RB6 — Bidirectional I/O port B bit 6 |
| 引脚 13 | RB7 — Bidirectional I/O port B bit 7 |
| 引脚 14 | VSS — Ground reference |
| 引脚 15 | OSC2/CLKOUT — Oscillator output / clock out |
| 引脚 16 | OSC1/CLKIN — Oscillator input / external clock in |
| 引脚 17 | RC0 — Bidirectional I/O port C bit 0 |
| 引脚 18 | RC1 — Bidirectional I/O port C bit 1 |
| 引脚 19 | RC2 — Bidirectional I/O port C bit 2 |
| 引脚 20 | RC3 — Bidirectional I/O port C bit 3 |
| 引脚 21 | RC4 — Bidirectional I/O port C bit 4 |
| 引脚 22 | RC5 — Bidirectional I/O port C bit 5 |
| 引脚 23 | RC6 — Bidirectional I/O port C bit 6 |
| 引脚 24 | RC7 — Bidirectional I/O port C bit 7 |
| 引脚 25 | VSS — Ground reference |
| 引脚 26 | VDD — Positive supply voltage |
| 引脚 27 | RA0 — Bidirectional I/O port A bit 0 |
| 引脚 28 | RA1 — Bidirectional I/O port A bit 1 |
典型应用
PIC16C57C-04E/SS 适用于 6 应用s: White Goods and Small Appliance Control, Industrial Sensor Front-End Nodes, Automotive Body and Convenience Modules, Consumer Remote Control Transmitters, User Interface and Keypad Panels, Lighting Control Modules.
White Goods and Small Appliance Control
The PIC16C57C-04E/SS is well suited to white-goods control boards such as washing machines, microwave ovens, and rice cookers because its 3 KB OTP memory holds typical appliance firmware, the 4 MHz core drives 100 ns instruction cycles for real-time keypad and sensor polling, and the SSOP-28 footprint fits inside space-constrained appliance chassis. The wide 3.0-5.5 V supply tolerates unregulated wall-adapter rails, while the on-chip watchdog timer recovers the MCU automatically from mains-borne brown-out events common in motor-driven loads.
推荐
Industrial Sensor Front-End Nodes
In industrial 4-20 mA loop-powered sensor transmitters and discrete digital probes, the PIC16C57C-04E/SS delivers deterministic 100 ns instruction timing for sampling, linearization, and HART-style modulation. Its 20 GPIO handle multiple switch inputs and relay outputs, and the -40 C to +125 C extended temperature grade tolerates unconditioned factory floors. The OTP memory secures proprietary calibration tables against external read-back, while the CMOS core keeps quiescent draw low enough for loop-powered budgets.
推荐
Automotive Body and Convenience Modules
Within non-safety automotive body controllers such as seat heaters, mirror adjusters, and interior lighting, the PIC16C57C-04E/SS supplies reliable 8-bit logic with 20 GPIO for switches, LEDs, and H-bridge enable lines. The extended -40 C to +125 C temperature grade handles cabin and engine-bay-adjacent environments, and the wide 3.0-5.5 V supply rides cleanly on 12 V battery rails post-regulation. The 3 KB OTP accommodates lookup-table-rich lighting or HVAC control logic without external memory.
推荐
Consumer Remote Control Transmitters
The PIC16C57C-04E/SS drives low-cost 433 MHz/315 MHz remote control transmitters where 3 KB OTP fits IR/RF protocol stacks, and the SSOP-28 package keeps the PCB small enough to fit inside key-fob housings. Its CMOS design minimizes battery drain on coin cells, while the hardware watchdog guards against stuck TX conditions. The 20 GPIO directly drive keypad matrix scans and LED indicators without external logic.
推荐
User Interface and Keypad Panels
The PIC16C57C-04E/SS powers standalone user-interface panels with 4x4 or 5x5 keypads, multi-digit seven-segment displays, and indicator LEDs in equipment such as security keypads, exercise machines, and instrumentation front panels. Its 20 GPIO scan the matrix and refresh displays without external drivers on small systems, and the 3 KB OTP holds debounce, mode-control, and menu logic. Extended-temperature operation suits outdoor enclosures and unheated warehouses.
推荐
Lighting Control Modules
The PIC16C57C-04E/SS acts as a low-cost controller in architectural lighting and LED driver modules, generating PWM dimming patterns, fade tables, and DMX-512 style addressable commands from its 3 KB OTP. The 4 MHz core is sufficient to bit-bang multi-channel PWM at audio-bypass rates, and the SSOP-28 package sits comfortably behind LED driver ICs on slim PCBAs. The on-chip watchdog prevents lamps from getting stuck in anomalous states after brown-outs.
推荐
推荐产品汇总
工程参考数据： PIC16C57C-04E/SS ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | PIC16C57C-04/SS | PIC16C57C-04I/SS | PIC16C57-10E/SS | PIC16C56A-20E/SS | PIC16C57-10I/P |
|---|---|---|---|---|---|---|
| Package | SSOP-28 | SSOP-28 (same) | SSOP-28 (same) | SSOP-28 (same) | SSOP-28 (same) | SSOP-28 (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 3 KB OTP | 3 KB OTP (same) | 3 KB OTP (same) | 2 KB OTP | 1 KB OTP | 2 KB OTP |
| RAM | 72 bytes | 72 bytes (same) | 72 bytes (same) | 72 bytes (same) | 25 bytes | 72 bytes (same) |
| Maximum CPU Frequency | 4 MHz | 4 MHz (same) | 4 MHz (same) | 10 MHz | 20 MHz | 10 MHz |
| Operating Temperature | -40 C to +125 C (Extended) | 0 C to +70 C (Commercial) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | -40 C to +125 C (Extended) | -40 C to +85 C (Industrial) |
| I/O Pins | 20 | 20 (same) | 20 (same) | 20 (same) | 12 | 20 (same) |
| Supply Voltage Range | 3.0 V to 5.5 V | 3.0 V to 5.5 V (same) | 3.0 V to 5.5 V (same) | 2.5 V to 6.25 V | 2.5 V to 6.25 V | 2.5 V to 6.25 V |
| Lifecycle Status | Active | Active | Active | Mature | Mature | Mature |
关键差异点
- Largest code footprint in the PIC16C5X family at 3 KB OTP （对比 PIC16C56A-20E/SS)
- Extended -40 C to +125 C temperature range （对比 PIC16C57C-04/SS)
- Balanced 4 MHz speed grade with low power （对比 PIC16C57-10E/SS)
设计说明
Place a 0.1 uF decoupling capacitor as close as possible between VDD (pin 26) and VSS (pin 25), and add a bulk 10 uF electrolytic or tantalum on the same supply rail near the MCU. The PIC16C57C draws brief current spikes on internal clock edges, and insufficient decoupling causes erratic instruction execution or MCLR glitches during heavy I/O transitions.
Route MCLR (pin 4) with a 10 kohm pull-up to VDD and a 100 nF cap to ground if a manual reset button is used; keep this trace short and away from the OSC1/OSC2 lines (pins 15-16) to avoid coupling noise into the reset line. Place the crystal or resonator within 5 mm of OSC1/OSC2 and guard both pins with a ground ring on the PCB.
Do not assume the PIC16C57C-04E/SS can be re-programmed in-circuit - OTP memory can be written only once. Always validate firmware on a JW (windowed) or flash-based PIC16F equivalent before committing to production OTP orders, and use Microchip's device programmer with the correct OSCCAL and configuration-word settings.
Although the SSOP-28 has relatively high thermal resistance (theta_JA ~ 95 C/W on a 2-layer test board), the PIC16C57C's CMOS core dissipates only a few tens of mW even at 4 MHz full activity. For continuous full-load operation at +125 C ambient, provide at least 100 mm^2 of copper pour tied to VSS on the top layer to keep junction rise under 10 C.
合规信息
RoHS compliant lead-free SSOP per Microchip environmental information; not AEC-Q100 qualified so not recommended for safety-critical automotive designs. Halogen-free status not explicitly stated in verified data and is recorded as unknown.
