PIC16C62BT-20E/SS - 20MHz 8-Bit OTP MCU, 3.5KB | Microchip
MPN: PIC16C62BT-20E/SS ✓ نشطPIC16C62BT-20E/SS نظرة عامة
An 8-bit microcontroller (MCU) is a self-contained computing-on-a-chip that integrates a CPU, non-volatile program memory, working RAM, and peripheral interfaces such as timers, capture/compare, and digital I/O on a single die. Within the broader taxonomy, the PIC16C62B sits in the PICmicro mid-range architecture hierarchy: PIC16C family -> PIC16 mid-range -> PIC16C62B sub-family -> 8-bit MCU -> microcontroller -> embedded controller -> semiconductor IC. The 'C' suffix indicates a CMOS, ROM/OTP-based variant intended for cost-sensitive production volumes where in-system re-programmability is not required, and the 'B' suffix denotes a second-silicon revision of the original PIC16C62 core.
The PIC16C62BT-20E/SS executes 35 single-word instructions and runs at 20 MHz with a 200 ns instruction cycle, enabling deterministic control loops for embedded applications. It supports 22 digital I/O pins, three timers (Timer0, Timer1, Timer2 with PWM), a 4-channel 8-bit ADC, a synchronous serial port (SSP) for SPI/I2C, a USART, and a watchdog timer. Power consumption is optimized for 4 V to 5.5 V single-supply operation with on-chip brown-out reset and power-on reset.
Architecturally, the device uses a Harvard memory structure with a separate 14-bit program bus and an 8-bit data bus, allowing simultaneous instruction fetch and data access. This reduces cycle count per instruction and improves throughput relative to von-Neumann 8-bit MCUs of the same clock speed.
Typical applications include appliance control, industrial sensor interfaces, automotive body modules, lighting ballast control, and battery-powered instrumentation. The wide -40C to +125C operating range suits industrial and automotive under-hood environments. When migrating legacy designs, engineers should note that the OTP memory cannot be re-programmed; for field-upgradeable code paths, evaluate the flash-based PIC16F6xx family as an alternative.
بدائل مباشرة لـ PIC16C62BT-20E/SS — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC16C62BT-20E/SS (نفس عامل الشكل والبصمة) — يختلف في Operating Temperature, Package, Timers, Program Memory Size, Program Memory Type.
PIC16C62B-20E/SS
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC16C62B-04E/SS
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC16C62AT-20E/SS
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16C622T-20E/SS
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16F627T-20E/SS
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16C62BT-20E/SS الحدود القصوى والخصائص الكهربائية
| Core Architecture | PIC16C, 8-bit RISC |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 3.5 KB (2K x 14 bits) |
| RAM Size | 128 bytes |
| Maximum CPU Frequency | 20 MHz |
| Instruction Cycle Time | 200 ns |
| Supply Voltage Range | 4 V to 5.5 V |
| Number of I/O Pins | 22 |
| العلبة | 28-SSOP (5.30 mm body width) |
| نوع التركيب | Surface Mount |
| ADC | 8-bit, 4 channels |
| Timers | 3 (Timer0, Timer1, Timer2 with PWM) |
| Communication Interfaces | SSP (SPI/I2C), USART |
| نطاق درجة حرارة التشغيل | -40C to +125C |
| Instruction Set | 35 single-word instructions |
| Watchdog Timer | Yes, on-chip |
| Brown-out Reset | Yes |
تكوين أطراف PIC16C62BT-20E/SS
| دبوس 1 | MCLR/VPP — Master clear reset (active low) / programming voltage input |
| دبوس 2 | RA0/AN0 — Port A bit 0 / analog input channel 0 |
| دبوس 3 | RA1/AN1 — Port A bit 1 / analog input channel 1 |
| دبوس 4 | RA2/AN2 — Port A bit 2 / analog input channel 2 |
| دبوس 5 | RA3/AN3/VREF — Port A bit 3 / analog input channel 3 / ADC voltage reference |
| دبوس 6 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| دبوس 7 | RA5/SS/AN4 — Port A bit 5 / SPI slave select / analog input channel 4 |
| دبوس 8 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| دبوس 9 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| دبوس 10 | RC0 — Port C bit 0 |
| دبوس 11 | RC1 — Port C bit 1 |
| دبوس 12 | RC2 — Port C bit 2 |
| دبوس 13 | RC3 — Port C bit 3 |
| دبوس 14 | RC4 — Port C bit 4 |
| دبوس 15 | RC5 — Port C bit 5 |
| دبوس 16 | RC6 — Port C bit 6 |
| دبوس 17 | RC7 — Port C bit 7 |
| دبوس 18 | VSS — Ground reference |
| دبوس 19 | VDD — Positive supply voltage |
| دبوس 20 | RB0/INT — Port B bit 0 / external interrupt input |
| دبوس 21 | RB1 — Port B bit 1 |
| دبوس 22 | RB2 — Port B bit 2 |
| دبوس 23 | RB3 — Port B bit 3 |
| دبوس 24 | RB4 — Port B bit 4 |
| دبوس 25 | RB5 — Port B bit 5 |
| دبوس 26 | RB6 — Port B bit 6 |
| دبوس 27 | RB7 — Port B bit 7 |
| دبوس 28 | NC — Not connected (per datasheet) |
التطبيقات النموذجية
PIC16C62BT-20E/SS مناسب لـ 7 التطبيقs: Industrial Sensor Interface, Appliance Control (Washing Machines, Dishwashers), Automotive Body Electronics, Battery-Powered Instrumentation, HVAC Fan and Blower Control, Lighting Ballast and LED Driver Control, Remote Control and IR Transmitter/Receiver.
Industrial Sensor Interface
The PIC16C62BT-20E/SS suits industrial 4-20 mA sensor transmitters and RTD conditioning front-ends where deterministic response and low BOM cost dominate design priorities. Its 8-bit 4-channel ADC digitizes thermocouple or strain-gauge signals at sampling rates up to ~50 ksps, while the 20 MHz core executes linearization and PID compensation within the 200 ns instruction cycle. The 22 digital I/O lines drive HMI keypads, indicator LEDs, and isolated SPI links to supervisory controllers. The extended -40C to +125C range and on-chip brown-out reset ensure field reliability in factory-floor enclosures. Engineers typically pair this MCU with a precision op-amp front-end and an isolated RS-485 transceiver for robust industrial nodes.
موصى به
Appliance Control (Washing Machines, Dishwashers)
In white-goods motor control boards, the PIC16C62BT-20E/SS drives TRIAC-based phase-angle dimmers, water-valve solenoids, and rotary encoder user interfaces at a price point suited to consumer-volume production. Its 20 MHz execution speed handles multi-step wash-cycle state machines and PWM-driven drain-pump speed control in real time. The 128-byte RAM is adequate for cycle counters and EEPROM-emulated user settings, while the SSP port interfaces with LED display driver ICs over SPI. The OTP memory prevents accidental field re-flashing that could void safety certifications. Compared to a 32-bit MCU, this part reduces system cost by 60-70% while delivering sufficient throughput for typical appliance logic.
موصى به
Automotive Body Electronics
Within automotive body control modules - mirror actuators, seat position memory, and ambient lighting - the PIC16C62BT-20E/SS delivers the -40C to +125C automotive temperature grade required for cabin and under-hood zones. Its USART links to LIN or K-Line body-bus transceivers for communication with central BCMs, while the 22 I/O pins directly drive window lift relays and LED backlighting via MOSFET drivers. The PIC16C62B family is not AEC-Q100 qualified, so it is best suited for non-safety body functions rather than airbag or ABS subsystems. Designers pair the MCU with automotive-grade regulators and TVS diodes to meet load-dump and reverse-battery transient requirements. The OTP memory locks firmware against unauthorized field re-flashing.
موصى به
Battery-Powered Instrumentation
The PIC16C62BT-20E/SS operates across a 4 V to 5.5 V supply window, making it compatible with four-cell alkaline or single-cell Li-ion packs commonly used in portable test instruments and handheld data loggers. Its relatively low MHz/MIPS ratio allows operation at reduced clock speeds during sleep intervals, extending battery life when the CPU is idle. The 8-bit ADC and internal voltage reference support direct battery-voltage monitoring and sensor measurements, while the USART outputs results to a Bluetooth or USB bridge IC. Engineers typically gate the MCU's clock with a slow 32.768 kHz crystal during standby, waking periodically for measurement cycles. The extended temperature range supports outdoor and industrial deployment.
موصى به
HVAC Fan and Blower Control
In residential and light-commercial HVAC systems, the PIC16C62BT-20E/SS implements closed-loop fan-speed control using its 8-bit ADC to read temperature sensors and its PWM-capable Timer2 to generate variable-duty motor drive signals. The 20 MHz core executes PI control loops at 1 kHz update rates, ensuring smooth ramp-up and acoustic comfort. The 22 I/O lines interface with thermostat keypads, mode-select switches, and status LEDs without external port expanders. The OTP memory guarantees that the calibrated control algorithm cannot be tampered with in the field. Compared to a dedicated fan-controller ASIC, this approach offers software-tunable curves and easier SKU differentiation across product lines.
موصى به
Lighting Ballast and LED Driver Control
The PIC16C62BT-20E/SS serves as the digital controller in electronic ballasts for fluorescent lamps and dimmable LED drivers, generating the high-frequency switching waveforms and managing soft-start sequences. Its PWM module produces 0-100% duty-cycle dimming signals, while the ADC monitors lamp current and voltage for closed-loop regulation. The 20 MHz instruction cycle supports complex dimming protocols including 0-10 V analog and DALI digital interfaces. The extended -40C to +125C temperature range accommodates the thermal environment inside enclosed luminaire fixtures. OTP memory locks the firmware-tuned dimming curves and safety limits, preventing field modification that could compromise lamp life.
موصى به
Remote Control and IR Transmitter/Receiver
Consumer remote controls and IR-based data links benefit from the PIC16C62BT-20E/SS combination of low cost, 20 MHz throughput, and integrated USART/CCP peripherals. The CCP module generates 38 kHz carrier waveforms for IR transmission, while the external interrupt pin captures incoming RC5 or NEC protocol frames with microsecond-level precision. The 128 bytes RAM stores the latest keypress code, and the 22 I/O pins directly scan 8x8 keypad matrices. The OTP memory locks the manufacturer-specific device codes against cloning. Battery life extends to multi-year operation when the MCU sleeps between keypress events, waking on a port-change interrupt.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC16C62BT-20E/SS — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | PIC16C62B-20E/SS | PIC16C62B-04E/SS | PIC16C62AT-20E/SS | PIC16C622T-20E/SS | PIC16F627T-20E/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | 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 | 28-SSOP - same |
| Program Memory Type | OTP | OTP | OTP | OTP | OTP | Flash (1.75 KB) |
| Program Memory Size | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 3.5 KB | 1.75 KB |
| RAM Size | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| Maximum CPU Frequency | 20 MHz | 20 MHz | 4 MHz | 20 MHz | 20 MHz | 20 MHz |
| Operating Temperature Range | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +125C (E grade) | -40C to +125C (E grade) |
| Reprogrammable (Field Update) | No (OTP) | No (OTP) | No (OTP) | No (OTP) | No (OTP) | Yes (Flash) |
| Analog Comparators | 0 | 0 | 0 | 0 | 2 | 2 |
أبرز الفروقات
- Higher 20 MHz CPU clock with identical pinout to 4 MHz variant (مقابلPIC16C62B-04E/SS)
- Reprogrammable flash option for prototype-to-production migration (مقابلPIC16F627T-20E/SS)
- Integrated analog comparators in pin-compatible PIC16C622 family (مقابلPIC16C622T-20E/SS)
ملاحظات التصميم
The PIC16C62BT-20E/SS operates from a single 4.0 V to 5.5 V supply on VDD (pin 20) with VSS (pin 19) as ground. Place a 0.1 uF decoupling capacitor as close as possible to the VDD pin to suppress switching transients from the internal CPU core, and add a bulk 10 uF tantalum or ceramic capacitor at the regulator output. The brown-out reset (BOR) module monitors VDD and holds the MCU in reset when the supply drops below the BOR threshold (typically 3.7 V to 4.0 V), preventing code execution at unreliable voltages.
Use a 4-layer PCB with a dedicated ground plane beneath the 28-SSOP package to minimize digital switching noise coupling into the analog ADC inputs on RA0-RA5. Route the oscillator traces (OSC1, OSC2) short and symmetric, with the load capacitors placed within 2 mm of the IC pins and a ground guard ring around the crystal to reduce stray capacitance and EMI pickup. Keep ADC signal traces away from the USART TX line and PWM outputs to avoid digital-to-analog crosstalk. The exposed pad is not present on the SSOP package - thermal dissipation is limited to ~1 W at room temperature.
The OTP program memory cannot be erased or rewritten - any code bug discovered after programming renders the device unusable, so always program production units only after extensive prototype validation. The MCLR/VPP pin (pin 1) is a Schmitt-trigger input that requires a 10 kohm pull-up to VDD for normal operation; leaving it floating causes intermittent resets. The 'E' temperature grade suffix is mandatory for industrial and automotive applications; the standard grade (no 'E') limits operation to 0C to +70C. Configurable peripheral pins require careful configuration word setup - failing to disable unused peripherals like the watchdog or BOR can prevent code from starting in field conditions.
معلومات الامتثال
RoHS status not confirmed in verified data - Microchip PIC16C OTP family predates widespread RoHS adoption and may require lead-bearing variants; verify with manufacturer for production designs. AEC-Q100 not applicable - this part is not automotive-qualified, so use PIC16F or PIC18F equivalents with Q1 suffix for safety-critical automotive subsystems.
