PIC16C62B-20/SS - 8-bit OTP MCU, 20MHz, 3.5KB, 28-SSOP | Microchip
料号： PIC16C62B-20/SS ✓ 量产中| 数量 | 单价 | 小计 |
|---|---|---|
| 1 | $7.2 | $7.20 |
| 10 | $6.45 | $64.50 |
| 100 | $5.7 | $570.00 |
| 500 | $5.1 | $2,550.00 |
| 1,000 | $4.55 | $4,550.00 |
PIC16C62B-20/SS 概述
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and peripheral interfaces. The PIC16C6x family sits within Microchip's mid-range 8-bit PIC architecture hierarchy: PIC10/12/14/16/18 microcontrollers -> 8-bit RISC MCUs -> embedded controllers. The OTP memory is programmed once at production time, making PIC16C62B ideal for high-volume, cost-sensitive, fully validated designs where field firmware updates are not required.
Key features include 35 single-word instructions, an operating voltage range of 2.5 V to 6.0 V (with 4 V to 5.5 V recommended for 20 MHz operation), a 10-bit ADC on selected variants, two 8-bit timers plus one 16-bit timer, a watchdog timer with on-chip RC oscillator, in-circuit serial programming via two pins, and a programmable code protection mechanism. The 28-SSOP package supports industrial temperature operation from -40 °C to +85 °C.
Architecturally, PIC16C62B uses a Harvard-style separate program and data bus, which lets an instruction fetch and a data access occur in the same cycle. The result is deterministic timing with zero pipeline stalls for sequential instructions - critical for interrupt-driven control loops and real-time motor or sensor sampling.
Typical applications include appliance control panels, HVAC damper actuators, simple sensor hubs, security PIR keypads, consumer remote controls, and automotive body modules. Designers value the part for its wide tool ecosystem (MPLAB IDE, MPASM, MPLAB PM3 programmer) and pin-compatibility with the flash-based PIC16F62x family, which lets early prototypes use re-programmable silicon before locking the BOM to OTP.
When designing with PIC16C62B-20/SS, use an external 20 MHz crystal or resonator with the recommended 22 pF load capacitors, and respect the maximum I/O sink/source of 25 mA per pin (200 mA total) to avoid latch-up. For new designs requiring flash reprogramming, evaluate PIC16F628 or PIC16F88 first and treat PIC16C62B as a cost-down BOM for already-frozen firmware.
直接替换替代料： PIC16C62B-20/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： PIC16C62B-20/SS （相同外形与封装尺寸） ——差异在于 Program Memory Type, Operating Temperature, Program Memory Size, RAM Size, Timers.
快速对比工具——选择替代料号进行并排对比：
PIC16C62B-20I/SS
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC16C62B-04I/SS
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$5.4 / 个
查看数据手册 →PIC16C622-20/SS
✅ 直接替换✓ 有现货
$1.38 / 个
查看数据手册 →PIC16C621-20/SS
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC16F628-20I/SS
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
PIC16C620-20/SS
✅ 直接替换 ⚠️ 规格未核验✓ 有现货
$2.41 / 个
查看数据手册 →PIC16C62B-20/SS 最大额定值与电气特性
| Core | 8-bit PIC RISC |
| Program Memory | 3.5 KB (2K x 14) OTP |
| RAM | 128 bytes |
| EEPROM | 128 bytes |
| Maximum CPU Speed | 20 MHz |
| Instruction Throughput | 5 MIPS (200 ns per instruction) |
| I/O Pins | 22 |
| Supply Voltage (VDD) | 2.5 V to 6.0 V (4 V to 5.5 V at 20 MHz) |
| Timers | 2 x 8-bit, 1 x 16-bit |
| Watchdog Timer | Yes, with on-chip RC oscillator |
| ADC | None on PIC16C62B (see PIC16C63/64/65) |
| Oscillator Modes | XT, HS, LP, RC |
| Program Memory Type | One-Time-Programmable (OTP) EPROM |
| 封装 | 28-pin SSOP (5.30 mm / 0.209 in body width) |
| 安装类型 | Surface Mount |
| 工作温度 | -40 °C to +85 °C (industrial) |
| I/O Sink/Source | 25 mA per pin (200 mA total) |
| ICSP | In-Circuit Serial Programming via RB6/RB7 |
| RoHS 状态 | Compliant |
PIC16C62B-20/SS 引脚配置
| 引脚 1 | RA2/AN2 — Port A bit 2 / analog input (note: PIC16C62B without ADC; AN function N/A) |
| 引脚 2 | RA3/AN3 — Port A bit 3 / analog input (N/A on PIC16C62B) |
| 引脚 3 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| 引脚 4 | RA5/SS — Port A bit 5 / SPI slave select |
| 引脚 5 | RE0/RD — Port E bit 0 / parallel slave read (PIC16C62B limited) |
| 引脚 6 | RE1/WR — Port E bit 1 / parallel slave write |
| 引脚 7 | RE2/CS — Port E bit 2 / parallel slave chip select |
| 引脚 8 | VDD — Positive supply voltage |
| 引脚 9 | OSC2/CLKOUT — Crystal output / clock out |
| 引脚 10 | OSC1/CLKIN — Crystal input / external clock |
| 引脚 11 | RA6 — Port A bit 6 |
| 引脚 12 | RA7 — Port A bit 7 |
| 引脚 13 | RB0/INT — Port B bit 0 / external interrupt |
| 引脚 14 | RB1 — Port B bit 1 |
| 引脚 15 | RB2 — Port B bit 2 |
| 引脚 16 | RB3 — Port B bit 3 |
| 引脚 17 | RB4 — Port B bit 4 |
| 引脚 18 | RB5 — Port B bit 5 |
| 引脚 19 | RB6/PGC — Port B bit 6 / ICSP clock |
| 引脚 20 | RB7/PGD — Port B bit 7 / ICSP data |
| 引脚 21 | RC0 — Port C bit 0 |
| 引脚 22 | RC1 — Port C bit 1 |
| 引脚 23 | RC2 — Port C bit 2 |
| 引脚 24 | RC3 — Port C bit 3 |
| 引脚 25 | RC4 — Port C bit 4 |
| 引脚 26 | RC5 — Port C bit 5 |
| 引脚 27 | RC6 — Port C bit 6 |
| 引脚 28 | RC7 — Port C bit 7 |
典型应用
PIC16C62B-20/SS 适用于 6 应用s: Home Appliance Control Board, HVAC Damper and Fan Controller, Security Keypad and PIR Sensor Hub, Consumer Remote Control Unit, Automotive Interior Body Module, Industrial Sensor Signal Conditioner.
Home Appliance Control Board
The PIC16C62B-20/SS is well matched to appliance control boards such as microwave ovens, washing machine user interfaces, dishwasher timers, and refrigerator temperature displays. Its 20 MHz core processes keyboard scans, seven-segment multiplex, and triac/relay firing within tight cycle budgets, while 22 I/O pins drive LED or LCD panels and read multiple sensor inputs. With 3.5 KB OTP memory the firmware is locked at production, eliminating field reprogramming risks in consumer environments. Typical supply current of 2-10 mA from a 5 V rail keeps power dissipation low even in always-on appliances.
推荐
HVAC Damper and Fan Controller
Building HVAC actuators controlling dampers, fan speeds, and thermostatic valves can use PIC16C62B-20/SS as the central controller. The 8-bit RISC core executes PID loops fast enough to drive brushless DC motors with PWM, while the 16-bit timer captures tachometer feedback from Hall sensors. Industrial -40 C to +85 C operation tolerates plenum and rooftop enclosures. The 28-SSOP footprint fits compact actuator PCBs alongside bridge drivers and AC line-side isolation.
推荐
Security Keypad and PIR Sensor Hub
Wired security keypads, PIR motion hubs, and door/window sensor concentrators use PIC16C62B-20/SS to read keypad matrices, interface with PIR analog front ends, and transmit alarm events over simple serial links. The OTP memory prevents firmware tampering, a key requirement for UL-listed security panels. With 22 I/O pins the MCU handles a 4x4 keypad, multiple zone inputs, status LEDs, and a piezo buzzer driver without external I/O expansion.
推荐
Consumer Remote Control Unit
Universal remote controls, garage-door openers, and ceiling-fan remotes benefit from PIC16C62B-20/SS low power draw and small SSOP package. The 20 MHz core easily handles RC5/RC6 or proprietary IR protocols, while the two 8-bit timers drive PWM outputs for backlight dimming and buzzer feedback. OTP memory locks each SKU to a fixed device code list, preventing field reconfiguration. Battery life is extended by the watchdog-driven sleep mode, drawing under 1 uA between button presses.
推荐
Automotive Interior Body Module
Body controllers for window regulators, mirror adjustments, seat-position memory, and interior lighting use PIC16C62B-20/SS in non-safety-critical functions. The 28-SSOP withstands automotive underhood temperature swings when paired with conformal coating, and the 22 I/O pins comfortably manage multiple motor bridges and switch inputs. The OTP variant is preferred over flash to reduce field-reprogramming liability in the OEM warranty period.
推荐
Industrial Sensor Signal Conditioner
Process-control signal conditioners and transducer digitizers use PIC16C62B-20/SS to apply linearization, scaling, and digital filtering on analog sensor signals before passing them to fieldbus transmitters. The deterministic instruction timing eliminates jitter in synchronous-sampling pipelines, while the watchdog and brown-out reset features ensure recovery from noisy industrial supply rails. The 28-SSOP package fits DIN-rail transmitter enclosures alongside 4-20 mA loop drivers.
推荐
推荐产品汇总
工程参考数据： PIC16C62B-20/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 | PIC16C62B-20I/SS | PIC16C62B-04I/SS | PIC16C622-20/SS | PIC16F628-20I/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 |
| Maximum Clock Speed | 20 MHz | 20 MHz | 4 MHz | 20 MHz | 20 MHz |
| Program Memory | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB Flash |
| Memory Type | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM | Flash (reprogrammable) |
| RAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 224 bytes |
| I/O Pins | 22 | 22 | 22 | 22 | 16 |
| ADC | None | None | None | None | None (but has comparators) |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +85C |
关键差异点
- Lower-RAM cost-down alternative in same footprint （对比 PIC16C621-20/SS)
- Modern flash-based drop-in replacement （对比 PIC16F628-20I/SS)
- Sibling speed-grade option for low-power designs （对比 PIC16C62B-04I/SS)
设计说明
Estimated: at VDD = 5 V and 20 MHz, PIC16C62B-20/SS draws approximately 10 mA active and less than 1 uA in sleep. For battery designs budget a 3.3 V LDO with at least 50 mA headroom to accommodate peripheral transients. Add a 100 nF decoupling cap within 5 mm of VDD (pin 8) and a 10 uF bulk cap at the regulator output; the wide 2.5 V to 6.0 V supply tolerance lets you reuse the same BOM for both 3.3 V and 5 V designs by swapping only the LDO.
PIC16C62B-20/SS uses One-Time-Programmable EPROM - once programmed it cannot be reprogrammed in the SSOP package (no erasure window). Verify firmware thoroughly on a flash equivalent (PIC16F628-20I/SS, same pinout) before committing to OTP. Watch the CONFIG word for the oscillator mode and watchdog setting; an incorrect CONFIG word locks the device. Confirm MCLR/VPP pin has the proper 10 kohm pull-up to avoid spurious resets during ICSP.
For 28-SSOP with 0.65 mm pitch, route the ICSP pair (RB6/PGD, RB7/PGC) with 0.2 mm clearance to other signals and provide a 6-pin ICSP header footprint on production boards for in-circuit programming and debug. Keep the 20 MHz crystal traces short (under 5 mm) and surround with a ground guard ring. Add a 1 kohm series resistor on MCLR if the board is exposed to ESD-prone I/O connectors; this limits surge current into the internal clamp diodes.
合规信息
RoHS and lead-free compliant per Microchip product page. Not AEC-Q100 qualified; PIC16C62B is intended for industrial/consumer applications. Halogen-free status not explicitly stated in the verified data.
