PIC16C715-20I/SO - 8-bit 20MHz OTP MCU, 3.5KB, 13 I/O | Microchip
料号： PIC16C715-20I/SO ⚠ 最后一次采购| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $5.92 | $5.92 |
| 10 | $5.45 | $54.50 |
| 100 | $4.98 | $498.00 |
| 500 | $4.52 | $2,260.00 |
| 1,000 | $4.1 | $4,100.00 |
PIC16C715-20I/SO 概述
An OTP microcontroller is a one-time-programmable device - the on-chip program memory can be written exactly once using a device programmer, after which the code is permanent. This makes OTP MCUs a cost-optimized choice for high-volume, code-stable embedded products where field firmware updates are not required. The PIC16C715 belongs to the broader microcontroller (MCU) hierarchy: MCU -> embedded controller -> 8-bit microcontroller -> CMOS mid-range MCU. Its PIC16CXX mid-range core delivers deterministic execution with only 35 single-word instructions, easing code generation in assembly or C (MPLAB XC8).
Key features include 4 channels of 8-bit A/D conversion for sensor interfacing, 13 I/O pins with individually programmable direction, an internal oscillator option to reduce external component count, brown-out reset for reliable power-on behavior, and a wide 4.0V to 5.5V supply range. The device supports in-circuit serial programming (ICSP) via two pins, allowing factory programming even after board assembly.
The PIC16C715 uses a Harvard architecture with separate program and data buses, achieving a 200 ns instruction cycle at 20MHz. The 8-bit ALU, working register (W), and 7 special-function registers handle arithmetic, logical, and bit-manipulation operations. The integrated A/D converter uses successive approximation with 4 multiplexed input channels, suitable for sensor signal digitization.
Typical applications include appliance control modules, automotive sensor interfaces, industrial process monitoring, consumer electronics with fixed firmware, and low-cost data acquisition front-ends. Its combination of integrated ADC, BOR, and small SOIC footprint makes it well suited for compact PCB designs.
When designing, reserve the MCLR pin for either an external reset network or ICSP. Use 0.1uF decoupling close to VDD and a bulk capacitor at the supply pin. The A/D reference selection (VDD or external) directly determines conversion accuracy, so layout the analog pins away from digital switching traces.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
直接替换替代料： PIC16C715-20I/SO ——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： PIC16C715-20I/SO （相同外形与封装尺寸） ——差异在于 Package, Core Architecture, Timers, Program Memory Size, ADC.
快速对比工具——选择替代料号进行并排对比：
PIC16F716-I/SO
✅ 直接替换✓ 有现货
$1.13 / 个
查看数据手册 →PIC16C715T-20I/SO
✅ 直接替换📋 参考替代料（不在目录中）
PIC16C712-20I/SO
✅ 直接替换✓ 有现货
$2.21 / 个
查看数据手册 →PIC16C711-20I/SO
✅ 直接替换✓ 有现货
$1.95 / 个
查看数据手册 →PIC16F716T-I/SO
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$1.05 / 个
查看数据手册 →PIC16C715-20I/SO 最大额定值与电气特性
| Core Architecture | PIC16CXX mid-range 8-bit |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 3.5 KB (2K x 14 words) |
| Data RAM | 128 bytes |
| Data EEPROM | Not present |
| 最大时钟频率 | 20 MHz |
| Instruction Cycle Time | 200 ns (at 20 MHz) |
| Supply Voltage (VDD) | 4.0 V to 5.5 V |
| I/O Pins | 13 |
| ADC | 4-channel, 8-bit successive approximation |
| Timers | Timer0 (8-bit with 8-bit prescaler) |
| Brown-out Reset (BOR) | Yes |
| 封装 | 18-pin SOIC (SO) |
| 工作温度 | -40 C to +85 C (Industrial) |
| 安装类型 | Surface Mount |
| ICSP Programming | Yes (in-circuit serial programming) |
PIC16C715-20I/SO 引脚配置
| 引脚 1 | RA2/AN2/VREF- — GPIO/ADC input 2 / ADC negative reference |
| 引脚 2 | RA3/AN3/VREF+ — GPIO/ADC input 3 / ADC positive reference |
| 引脚 3 | RA4/T0CKI — GPIO / Timer0 clock input |
| 引脚 4 | MCLR — Master Clear (reset) input, active low |
| 引脚 5 | VSS — Ground |
| 引脚 6 | RB0/INT — GPIO / external interrupt input |
| 引脚 7 | RB1 — GPIO |
| 引脚 8 | RB2 — GPIO |
| 引脚 9 | RB3 — GPIO |
| 引脚 10 | RB4 — GPIO |
| 引脚 11 | RB5 — GPIO |
| 引脚 12 | RB6 — GPIO / ICSP clock |
| 引脚 13 | RB7 — GPIO / ICSP data |
| 引脚 14 | VDD — Positive supply voltage (4.0 V to 5.5 V) |
| 引脚 15 | OSC2/CLKOUT — Crystal output / clock output |
| 引脚 16 | OSC1/CLKIN — Crystal input / external clock input |
| 引脚 17 | RA0/AN0 — GPIO / ADC input 0 |
| 引脚 18 | RA1/AN1 — GPIO / ADC input 1 |
典型应用
PIC16C715-20I/SO 适用于 6 应用s: Appliance Control Module, Automotive Sensor Interface, Industrial Process Monitor, Low-Cost Data Acquisition Front-End, Consumer Electronics with Fixed Firmware, Hobby and Education 8-bit Projects.
Appliance Control Module
The PIC16C715-20I/SO is well-suited for appliance control PCBs thanks to its 13 GPIO, 4-channel 8-bit ADC for temperature or level sensing, and integrated brown-out reset for reliable power-on behavior across mains-derived 5V rails. Its 3.5KB OTP program memory fits typical washers, dishwashers, and microwave control logic, while the 18-SOIC package keeps the BOM compact.
推荐
Automotive Sensor Interface
The PIC16C715-20I/SO reads 4-channel analog sensors (temperature, pressure, position) via its integrated 8-bit ADC and processes them through the 20 MHz mid-range core. With industrial -40C to +85C range and BOR, it tolerates automotive underhood environments; the 13 GPIO drive H-bridge enable lines, status LEDs, and PWM valve control. Microchip recommends migrating to PIC16F716 for new automotive programs.
推荐
Industrial Process Monitor
The PIC16C715-20I/SO monitors 4 process variables via its 8-bit ADC and 13 GPIO drive relays, displays, and 4-20mA loops. Its Harvard architecture and 200 ns instruction cycle deliver deterministic timing for control loops, while brown-out reset prevents data corruption during brown-outs. The OTP memory secures firmware against field tampering in factory-floor environments.
推荐
Low-Cost Data Acquisition Front-End
The PIC16C715-20I/SO digitizes 4 analog channels at up to 20 MHz instruction rate and streams results via GPIO or UART-emulated bit-banging. Its 128 bytes RAM buffer short sample bursts, while the 18-SOIC footprint eases integration on small PCBs. For designs needing more memory, the PIC16C712-20I/SO offers 8KB OTP in the same SOIC-18 package as a drop-in upgrade.
推荐
Consumer Electronics with Fixed Firmware
The PIC16C715-20I/SO powers remote controls, toys, and small appliances where the firmware is finalized before volume production. OTP memory locks the code permanently, reducing per-unit cost. The 4.0-5.5V supply range aligns with USB-derived or battery-stack rails, and the SOIC-18 enables hand-solderable prototypes during EVT builds.
推荐
Hobby and Education 8-bit Projects
The PIC16C715-20I/SO is popular for teaching 8-bit embedded design - the PIC16CXX mid-range core has only 35 instructions, making assembly learning tractable. Its SOIC-18 breakout boards are easy to breadboard, and ICSP programming allows students to flash code without removing the chip. The integrated ADC adds real sensor interfacing to lab exercises.
推荐
推荐产品汇总
工程参考数据： PIC16C715-20I/SO ——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 | PIC16F716-I/SO | PIC16C715T-20I/SO | PIC16C712-20I/SO | PIC16C711-20I/SO |
|---|---|---|---|---|---|
| Package | 18-SOIC | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Program Memory | 3.5 KB OTP | 3.5 KB Flash | 3.5 KB OTP | 8 KB OTP | 1.75 KB OTP |
| RAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| ADC Channels | 4 x 8-bit | 4 x 8-bit | 4 x 8-bit | 4 x 8-bit | 4 x 8-bit |
| Max Clock | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| I/O Pins | 13 | 13 | 13 | 13 | 13 |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
关键差异点
- Officially recommended flash replacement available （对比 PIC16F716-I/SO)
- Tape-and-reel variant available for automated assembly （对比 PIC16C715T-20I/SO)
- Pin-compatible upgrade path to 8KB OTP （对比 PIC16C712-20I/SO)
设计说明
Place a 0.1 uF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 14) and a 10 uF bulk capacitor at the supply entry point. The PIC16C715 has brown-out reset (BOR) that holds the device in reset until VDD exceeds the BOR threshold; ensure your power ramp exceeds the BOR release time before expecting code execution to start. Estimated: at 20 MHz and 5V VDD, core current is ~10 mA.
Keep analog inputs (RA0/AN0 through RA3/AN3) physically separated from digital switching traces. Use a ground plane under the SOIC and route the analog reference pin (RA3/VREF+) directly to a low-impedance reference source. Place the crystal or resonator close to OSC1/OSC2 (pins 15-16) with short traces to minimize EMI and clock jitter.
Do not skip the MCLR pull-up resistor (typically 10 kOhm to VDD) unless relying on the internal MCLR configuration - floating MCLR causes spurious resets. The ICSP pins RB6 and RB7 share GPIO with the device; ensure your application circuit does not load these pins so strongly that ICSP programming fails. When migrating from PIC16C715 to PIC16F716, double-check the configuration-word bits - flash parts use different bit positions for BOR and oscillator configuration.
合规信息
Halogen-free compliant per GlobalSpec listing; RoHS/REACH status not explicitly stated in verified data - marked unknown. AEC-Q100 not qualified (industrial grade MCU).