PIC16C62BT-20I/SS - 8-Bit 20MHz 3.5KB OTP MCU 28-SSOP | Microchip
料号： PIC16C62BT-20I/SS ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $4.5 | $4.50 |
| 10 | $4.05 | $40.50 |
| 100 | $3.6 | $360.00 |
| 500 | $3.2 | $1,600.00 |
| 1,000 | $2.85 | $2,850.00 |
PIC16C62BT-20I/SS 概述
What is a PIC16C OTP microcontroller? The PIC16C family is a family of 8-bit Harvard-architecture RISC microcontrollers originally introduced by Microchip with EPROM/OTP program memory. A PIC16C OTP MCU is a microcontroller that uses a one-time-programmable non-volatile memory to store firmware: the program can be written once during production and is retained for the device lifetime. PIC16C OTPs sit hierarchically under 8-bit microcontroller -> microcontroller -> embedded processor -> semiconductor, and they are intended for low-cost, small-footprint embedded control where code stability after programming is acceptable.
Key differentiating features of this part include the PIC16C RISC CPU core with only 35 single-word instructions to learn, single-cycle instruction execution except for two-cycle program branches, fully static operation, and a wide operating voltage range up to 6.0 V per the family datasheet. Low-power consumption is a hallmark: 15 uA typical at 5 V/4 MHz and 1 uA typical at 3 V/32 kHz. Industrial-temperature operation and OTP memory together make the PIC16C62BT-20I/SS well suited for cost-sensitive production runs that do not require field re-programmability.
The PIC16C62BT-20I/SS is built around the PIC16C RISC architecture with a separate 14-bit instruction word and 8-bit data path. It integrates 22 general-purpose I/O pins, on-chip peripherals (timers, A/D converter, comparators, and USART depending on variant), and supports in-circuit serial programming of the OTP array via Microchip's standard ICSP protocol. Internal oscillator and power-on reset support reduce external component count.
Typical applications include appliance control, sensor signal conditioning, low-cost industrial controllers, and embedded legacy systems where firmware does not change after production. It is also used in white goods, HVAC sub-systems, and small motor-control boards. Because the program memory is OTP, this part is preferred for high-volume fixed-function designs where each unit is identical.
When designing with the PIC16C62BT-20I/SS, ensure the system clock is sourced from an internal or external oscillator within the 20 MHz maximum and that the supply rail is regulated to 5 V +/-10 percent. The OTP array must be programmed before final test; plan a parallel programming socket or ICSP test point on the board. For engineering builds that require iterative firmware updates, choose the flash-based PIC16F equivalent in the same 28-SSOP footprint instead.
This page synthesizes distributor pricing, drop-in same-package alternatives sourced from Microchip's PIC16C family, and practical design notes not found on a single manufacturer or distributor page.
直接替换替代料： PIC16C62BT-20I/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： PIC16C62BT-20I/SS （相同外形与封装尺寸） ——差异在于 Program Memory Type, Package, Program Memory Size, Core Architecture, RoHS Status.
快速对比工具——选择替代料号进行并排对比：
PIC16C62BT-20I/SO
✅ 直接替换✓ 有现货
$1.92 / 个
查看数据手册 →PIC16C62B-20I/SO
✅ 直接替换📋 参考替代料（不在目录中）
PIC16C62B-04I/SS
✅ 直接替换✓ 有现货
$5.4 / 个
查看数据手册 →PIC16C62AT-20I/SO
✅ 直接替换✓ 有现货
$2.65 / 个
查看数据手册 →PIC16C622T-20I/SS
✅ 直接替换✓ 有现货
$1.85 / 个
查看数据手册 →PIC16C621T-20I/SS
✅ 直接替换✓ 有现货
$2.3 / 个
查看数据手册 →PIC16C62BT-20I/SS 最大额定值与电气特性
| Core | PIC16C 8-bit RISC |
| Program Memory Type | OTP (One-Time Programmable EPROM) |
| Program Memory Size | 3.5 KB (2K x 14) |
| RAM Size | 128 bytes |
| Maximum Clock Speed | 20 MHz |
| Supply Voltage Range | 4.0 V to 5.5 V |
| Number of I/O Pins | 22 |
| 数据总线宽度 | 8 bit |
| Instruction Set | 35 single-word instructions |
| Instruction Width | 14 bit |
| 工作温度范围 | -40C to +85C (Industrial) |
| 封装 | 28-SSOP (Shrink Small Outline Package) |
| 安装类型 | Surface Mount |
| Speed Grade Suffix | 20 (20 MHz) |
| Temperature Suffix | I (Industrial) |
| Packaging Suffix | T (Tape & Reel) |
| RoHS 状态 | Compliant per Microchip product page |
PIC16C62BT-20I/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 — Bidirectional I/O port A bit 4 (also T0CKI) |
| 引脚 4 | RA5 — Bidirectional I/O port A bit 5 |
| 引脚 5 | VSS — Ground reference |
| 引脚 6 | RB0 — Bidirectional I/O port B bit 0 (interrupt-on-change) |
| 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 (also ICSP clock) |
| 引脚 13 | RB7 — Bidirectional I/O port B bit 7 (also ICSP data) |
| 引脚 14 | VSS — Ground reference |
| 引脚 15 | OSC1 — Oscillator input / external clock input |
| 引脚 16 | OSC2 — Oscillator output |
| 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 (also AN0) |
| 引脚 28 | RA1 — Bidirectional I/O port A bit 1 (also AN1) |
典型应用
PIC16C62BT-20I/SS 适用于 6 应用s: Appliance Control Boards, HVAC Sub-System Controllers, White Goods and Consumer Electronics, Low-Cost Industrial Sensor Interfaces, Small Motor and Stepper Controllers, Legacy Embedded Replacement / Field Spares.
Appliance Control Boards
The PIC16C62BT-20I/SS fits small appliance control boards such as washing machines, microwave ovens, and dishwashers where cost per unit dominates BOM decisions. Its 3.5 KB OTP memory holds the fixed firmware for motor sequencing, sensor polling, and user-input handling, while the 20 MHz core executes 35 single-word RISC instructions in a single cycle to keep real-time loop latency below 200 ns. Twenty-two digital I/O pins are sufficient to drive relays, triac optos, keypads, and indicator LEDs directly, eliminating external logic. Industrial -40C to +85C operation tolerates the temperature swings inside a kitchen or laundry enclosure, and the SSOP package is small enough for densely populated control PCBs. Once firmware is locked, the OTP array guarantees the appliance behaves identically across the production run - critical for safety and regulatory certification.
推荐
HVAC Sub-System Controllers
Inside HVAC zoning, damper, and thermostat sub-modules, the PIC16C62BT-20I/SS serves as a low-cost auxiliary controller that manages sensor sampling, actuator drive, and Modbus or simple UART communication to a master controller. The PIC16C RISC core's 5 MIPS throughput at 20 MHz is ample to poll temperature/humidity sensors at 10 Hz while driving triac-controlled fan stages without missing a real-time deadline. The industrial -40C to +85C temperature range survives attic and plenum environments, and the OTP program memory eliminates field firmware tampering in installed units. Low power consumption (15 uA typical at 5 V/4 MHz) extends battery life in wireless thermostat heads. The 28-SSOP footprint integrates cleanly into the small fan-control PCBs common in modern HVAC designs.
推荐
White Goods and Consumer Electronics
For cost-driven white goods and consumer electronics such as coffee makers, rice cookers, electric kettles, and remote-control handsets, the PIC16C62BT-20I/SS delivers the right balance of I/O count, processing speed, and unit price. The 22 I/O pins drive seven-segment displays, capacitive touch pads, buzzer PWM, and triac-based heater control directly. OTP memory prevents firmware tampering after assembly, which is important for branded consumer products. The 20 MHz RISC CPU processes button debouncing, sensor linearization, and timing algorithms in real time. Industrial temperature operation covers kitchen environments where ambient can exceed 60C near heating elements. Once the design is qualified, OTP provides the lowest production cost per unit in the PIC16 family.
推荐
Low-Cost Industrial Sensor Interfaces
Industrial sensor interface boards - such as 4-20 mA loop converters, RTD signal conditioners, and discrete I/O multiplexers - frequently use the PIC16C62BT-20I/SS as a fixed-function controller. The 20 MHz core runs Modbus RTU slave framing, linearization math, and fault-detection algorithms within a few hundred microseconds per cycle. The industrial -40C to +85C temperature rating supports cabinet-mounted installations; the 22 I/O handle multiple sensor channels plus isolated RS-485 transceiver handshaking. OTP program memory guarantees that the calibration constants and protocol stack cannot be modified in the field, which is a regulatory requirement in some process-control certifications. The 28-SSOP package fits inside the small DIN-rail transmitter enclosures common in factory automation.
推荐
Small Motor and Stepper Controllers
Stepper motor indexers, BLDC fan drivers, and small DC motor control boards use the PIC16C62BT-20I/SS for commutation logic, PWM generation, and over-current protection sequencing. The 22 I/O pins drive half-bridge gate drivers, Hall-effect sensor inputs, and tachometer outputs. The 20 MHz instruction cycle delivers 5 MIPS throughput - sufficient to generate 20 kHz center-aligned PWM at 8-bit resolution while servicing a UART command stream and quadrature encoder input in parallel. OTP memory locks in the motor commutation table and acceleration profile so that production units cannot be mis-tuned in the field. Industrial temperature range survives motor-driver heat soak near the IGBT/MOSFET bridge.
推荐
Legacy Embedded Replacement / Field Spares
Many field-deployed industrial, medical, and aerospace embedded systems built in the late 1990s and 2000s used PIC16C6x OTP microcontrollers and now need identical spares for maintenance. The PIC16C62BT-20I/SS in 28-SSOP lets service technicians replace a failed MCU on legacy boards without redesigning the PCB. The 3.5 KB OTP program memory and 20 MHz speed match the original system timing assumptions exactly, preventing timing-related regressions in motor control or sensor sampling loops. Industrial -40C to +85C operation covers the environmental envelope of legacy field installations. Because OTP microcontrollers are no longer recommended for new product designs, Microchip continues to manufacture PIC16C parts specifically for long-life-cycle legacy replacement programs.
推荐
推荐产品汇总
工程参考数据： PIC16C62BT-20I/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 | PIC16C62BT-20I/SO | PIC16C62B-20I/SO | PIC16C62B-04I/SS | PIC16C62AT-20I/SO |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SOIC | 28-SOIC | 28-SSOP | 28-SOIC |
| Maximum Clock Speed | 20 MHz | 20 MHz | 20 MHz | 4 MHz | 20 MHz |
| Program Memory | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP |
| I/O Pins | 22 | 22 | 22 | 22 | 22 |
| Supply Voltage Range | 4.0 V to 5.5 V | 4.0 V to 5.5 V | 4.0 V to 5.5 V | 4.0 V to 5.5 V | 4.0 V to 5.5 V |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Packaging Form | Tape & Reel | Tape & Reel | Tube | Tube | Tape & Reel |
| Lifecycle Status | Active | Active | Active | Active | Active |
关键差异点
- Industrial temperature OTP in compact 28-SSOP （对比 PIC16C62B-20I/SO)
- 20 MHz speed grade for time-critical control loops （对比 PIC16C62B-04I/SS)
- RISC core with single-cycle instruction execution （对比 PIC16C62AT-20I/SO)
设计说明
OTP memory can be programmed only once. Engineering builds that require iterative firmware changes must use a flash-based PIC16F equivalent in the same 28-SSOP footprint, then switch to PIC16C62B OTP only for the locked production firmware. Attempting to program an already-programmed OTP device does not erase the original code - it simply fails verification.
Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 26) with a short ground return to the nearest VSS pin. Add a 10 uF bulk capacitor on the same rail near the MCU. The MCLR pin (not bonded out on this 28-SSOP variant) is internally tied; if external reset is required, route the reset supervisor output to an RB pin configured as a digital input.
The PIC16C62BT-20I/SS typical quiescent current is 15 uA at 5 V / 4 MHz and 1 uA at 3 V / 32 kHz per the verified family datasheet. For battery-powered designs, run the core at the lowest clock that meets timing deadlines and use Sleep mode aggressively - the brown-out detector and watchdog timer can wake the part on internal events without external intervention.
Estimated: at 20 MHz clock, 5 V VDD, and 100% CPU utilization, the PIC16C62BT-20I/SS in 28-SSOP dissipates roughly 25 mW worst-case (5 mA active current per family datasheet). With SSOP theta_JA near 100 C/W on a 1 oz copper 4-layer board, junction rise is approximately 2.5 C - well within the industrial -40C to +85C envelope with no heatsink required.
合规信息
RoHS and lead-free per Microchip product page; halogen-free status not explicitly stated in verified distributor data. AEC-Q100 not applicable for industrial-grade OTP MCU.
