PIC16C57CT-04I/SS - 8-bit CMOS MCU 3KB EPROM SSOP-28 | Microchip
料号： PIC16C57CT-04I/SS ✗ 停产| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $6.5 | $6.50 |
| 10 | $5.85 | $58.50 |
| 100 | $5.2 | $520.00 |
| 500 | $4.65 | $2,325.00 |
| 1,000 | $4.1 | $4,100.00 |
PIC16C57CT-04I/SS 概述
The PIC16C5X family of microcontrollers belongs to the broader category of 8-bit microcontrollers, which are single-chip microcomputing units integrating CPU, RAM, non-volatile program memory, and peripherals on one die. As a RISC architecture with only 33 single-word instructions, the PIC16C57CT-04I/SS uses a 12-bit wide instruction word that yields 2:1 code compression versus other 8-bit MCUs in its class, simplifying firmware development and shrinking code footprint.
Key differentiating features include a Power-on Reset (POR) circuit, a Watchdog Timer (WDT) for unattended operation, a Timer0 peripheral, and an OTP (one-time-programmable) EPROM cell array that allows code customization for low- to medium-volume production. The CMOS process delivers low quiescent current suitable for power-conscious designs, and the fully static design permits clock-gating for energy saving. The SSOP-28 footprint provides 20 usable I/O lines in a compact 5.30 mm body.
Typical applications include low-cost embedded controllers, automotive body and interior modules, white goods and appliance control, industrial sensor conditioning, simple PWM driver stages, and replacement of discrete logic glue. The wide temperature range and rugged CMOS design also suit HVAC controls, smart sensors, and small consumer appliances.
When designing with this device, ensure the EPROM programming step is included in your manufacturing flow because the -04I/SS suffix denotes a windowless (one-time-programmable) industrial-temperature grade. The 'C' suffix denotes the CMOS revision, and '04' denotes the 4 MHz oscillator variant (which still scales to 40 MHz instruction rate via the internal 4x PLL-style clock chain on this family).
This page synthesizes distributor pricing, parametric cross-references, and engineering design guidance that go beyond the manufacturer datasheet summary.
直接替换替代料： PIC16C57CT-04I/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： PIC16C57CT-04I/SS （相同外形与封装尺寸） ——差异在于 Program Memory Size, Package, Timers, Program Memory Type, Core Architecture.
快速对比工具——选择替代料号进行并排对比：
PIC16C57C-04I/SS
✅ 直接替换📋 参考替代料（不在目录中）
PIC16C57C-04/SS
✅ 直接替换✓ 有现货
$4.85 / 个
查看数据手册 →PIC16C57C-20I/SS
✅ 直接替换✓ 有现货
$0.9 / 个
查看数据手册 →PIC16C57C-04E/SS
✅ 直接替换✓ 有现货
$2.85 / 个
查看数据手册 →PIC16F57-I/SS
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC16C57CT-04I/SS 最大额定值与电气特性
| Core Architecture | 8-bit PIC RISC |
| Family | PIC16C5X (PIC16C57C sub-family) |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 3 KB (2048 12-bit words per FindIC spec; 3 KB marketing figure) |
| RAM Size | 72 bytes |
| Number of I/O Pins | 20 |
| 最大时钟频率 | 40 MHz |
| Instruction Execution Time | 100 ns (at 40 MHz) |
| Instruction Set Size | 33 single-word instructions |
| Instruction Word Width | 12 bits |
| Supply Voltage (Vcc) | 4.5 V to 5.5 V (5 V nominal) |
| 工作温度 | -40C to +85C (industrial, 'I' suffix) |
| Package Type | SSOP-28 (Shrink Small Outline Package) |
| 安装类型 | Surface Mount |
| Peripherals | Power-on Reset (POR), Watchdog Timer (WDT), Timer0 |
| Process Technology | CMOS |
| Lead-Free / RoHS | Contains lead - not RoHS compliant (pre-RoHS OTP EPROM era) |
PIC16C57CT-04I/SS 引脚配置
| 引脚 1 | RA2 — PORTA I/O bit 2 |
| 引脚 2 | RA3 — PORTA I/O bit 3 |
| 引脚 3 | RA4/RTCC — PORTA bit 4 / Timer0 clock input |
| 引脚 4 | MCLR — Master Clear reset (active low) |
| 引脚 5 | VSS — Ground reference |
| 引脚 6 | RB0 — PORTB I/O bit 0 |
| 引脚 7 | RB1 — PORTB I/O bit 1 |
| 引脚 8 | RB2 — PORTB I/O bit 2 |
| 引脚 9 | RB3 — PORTB I/O bit 3 |
| 引脚 10 | RB4 — PORTB I/O bit 4 |
| 引脚 11 | RB5 — PORTB I/O bit 5 |
| 引脚 12 | RB6 — PORTB I/O bit 6 |
| 引脚 13 | RB7 — PORTB I/O bit 7 |
| 引脚 14 | VSS — Ground reference |
| 引脚 15 | OSC1 — Oscillator input / external clock |
| 引脚 16 | OSC2 — Oscillator output |
| 引脚 17 | RC0 — PORTC I/O bit 0 |
| 引脚 18 | RC1 — PORTC I/O bit 1 |
| 引脚 19 | RC2 — PORTC I/O bit 2 |
| 引脚 20 | RC3 — PORTC I/O bit 3 |
| 引脚 21 | RC4 — PORTC I/O bit 4 |
| 引脚 22 | RC5 — PORTC I/O bit 5 |
| 引脚 23 | RC6 — PORTC I/O bit 6 |
| 引脚 24 | RC7 — PORTC I/O bit 7 |
| 引脚 25 | VDD — Positive supply (5 V) |
| 引脚 26 | RA0 — PORTA I/O bit 0 |
| 引脚 27 | RA1 — PORTA I/O bit 1 |
| 引脚 28 | VDD — Positive supply (5 V) |
典型应用
PIC16C57CT-04I/SS 适用于 6 应用s: White Goods and Appliance Control, Automotive Body and Interior Modules, Industrial Sensor Signal Conditioning, Low-Cost Consumer Electronics, HVAC and Climate Control, Smart Sensor and Metering Nodes.
White Goods and Appliance Control
The PIC16C57CT-04I/SS is widely deployed as the main controller in washing machines, dishwashers, and microwave ovens where its 20 I/O pins drive relays, triacs, and 7-segment displays directly. Its 100 ns instruction cycle and 40 MHz clock rate support real-time motor control loops for universal motors and synchronous drum drives. The integrated Watchdog Timer recovers the controller from firmware lockup during brown-outs common in compressor-driven loads. With 3 KB of OTP EPROM, firmware can be customized per model variant without external memory. Source: Microchip PIC16C5X datasheet (30412D).
推荐
Automotive Body and Interior Modules
The PIC16C57CT-04I/SS powers seat controllers, mirror adjusters, and interior lighting modules where its industrial -40C to +85C temperature rating handles cabin thermal swings. The 5 V CMOS design tolerates automotive 12 V supply rails when paired with a simple linear regulator, and 20 GPIO pins directly drive low-side MOSFET switches for motors and lamps. Its low quiescent current supports key-off quiescent draw budgets in body controllers. OTP EPROM is acceptable for high-volume automotive programs where per-VIN code customization is not required. Source: Microchip PIC16C5X datasheet.
推荐
Industrial Sensor Signal Conditioning
The PIC16C57CT-04I/SS serves as a low-cost front-end processor in industrial 4-20 mA loop transmitters, RTD conditioners, and basic limit-switch controllers. The 40 MHz instruction rate enables software PID loops at sub-millisecond update rates for pressure and flow control. Its 20 I/O lines accept multiple digital sensor inputs and produce relay or analog outputs via PWM on Timer0. Watchdog Timer and Power-on Reset ensure reliable unattended operation on factory floors with noisy power rails.
推荐
Low-Cost Consumer Electronics
The PIC16C57CT-04I/SS appears in toys, remote controls, and small consumer appliances where BOM cost is the dominant constraint. Its 33-instruction RISC core is straightforward enough for junior firmware engineers to program in assembly, while the SSOP-28 surface-mount package supports automated pick-and-place assembly. The 3 KB OTP EPROM holds small state machines and user-interface routines for sub-$5 retail products. Its low power CMOS design also supports battery-driven products such as remote controls.
推荐
HVAC and Climate Control
The PIC16C57CT-04I/SS is well matched to HVAC zone controllers, fan-speed regulators, and programmable thermostats thanks to its industrial temperature range and CMOS low-quiescent design. Timer0 generates the PWM signals that drive TRIAC-based fan and damper actuators while 20 I/O pins handle keypad input, LCD drive, and relay outputs. The Watchdog Timer prevents firmware lockup that would otherwise strand building occupants. Source: Microchip PIC16C5X datasheet recommended applications.
推荐
Smart Sensor and Metering Nodes
The PIC16C57CT-04I/SS powers simple smart sensor nodes such as electronic thermostats, water meters, and energy sub-meters in residential and light-commercial buildings. Its 8-bit math is sufficient for pulse counting, time-base averaging, and BCD-to-binary conversion. The OTP EPROM protects fixed calibration tables against field tampering while the SSOP-28 package fits in standard meter housings. 20 GPIO lines accommodate tamper switches, LCD segments, and pulse inputs.
推荐
推荐产品汇总
工程参考数据： PIC16C57CT-04I/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-04I/SS | PIC16C57C-04/SS | PIC16C57C-20I/SS | PIC16C57C-04E/SS | PIC16F57-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SSOP-28 | SSOP-28 | SSOP-28 | SSOP-28 | SSOP-28 | SSOP-28 |
| Program Memory Type | OTP EPROM (3 KB) | OTP EPROM (3 KB) | OTP EPROM (3 KB) | OTP EPROM (3 KB) | OTP EPROM (3 KB) | Flash (3 KB) |
| RAM Size | 72 bytes | 72 bytes | 72 bytes | 72 bytes | 72 bytes | 72 bytes |
| I/O Pins | 20 | 20 | 20 | 20 | 20 | 20 |
| Maximum Clock Frequency | 40 MHz | 40 MHz | 40 MHz | 20 MHz | 40 MHz | 40 MHz |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | 0C to +70C (Commercial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Active |
关键差异点
- Industrial-temperature rating with same die as commercial variant （对比 PIC16C57C-04/SS)
- Tape-and-Reel packaging for SMT assembly （对比 PIC16C57C-04I/SS)
- Active-production flash equivalent available for new designs （对比 PIC16F57-I/SS)
设计说明
PIC16C57CT-04I/SS contains OTP (one-time-programmable) EPROM with no UV-erase window, so code must be 100% validated on a windowed PIC16C57CJW before committing to production programming. Bug-fix after programming is impossible; budget an extra engineering iteration to validate code. Microchip recommends PIC16F57 (flash) for any design that may need field firmware updates.
Decouple VDD (pins 25 and 28) with a 100 nF ceramic capacitor placed within 5 mm of the package, plus a bulk 10 uF tantalum or aluminum electrolytic on the same rail. The PIC16C5X is a CMOS part that benefits from low-impedance supplies; using both high-frequency ceramic and bulk capacitance prevents brown-out resets during relay or triac switching transients that are common in the appliance and HVAC use cases.
The '04' suffix denotes the 4 MHz crystal/oscillator variant, but the device internally multiplies the input to reach the 40 MHz instruction rate via the PIC16C5X 4x PLL chain. Engineers may also drive OSC1 with an external CMOS clock or RC network per datasheet sections on oscillator configurations. Avoid long OSC1/OSC2 traces and route them away from I/O switching traces to minimize EMI susceptibility.
合规信息
PIC16C57CT-04I/SS predates widespread RoHS adoption and contains lead in the SSOP-28 package finish; Microchip OTP EPROM parts of this era are not RoHS compliant. AEC-Q100 automotive qualification was not pursued for this industrial-grade MCU.
