PIC16C662-10/PT - 8-Bit OTP MCU, 7KB EPROM, 33 I/O | Microchip
부품 번호: PIC16C662-10/PT ✗ 단종| 수량 | 단가 | 합계 |
|---|---|---|
| 1 | $5.45 | $5.45 |
| 10 | $4.91 | $49.10 |
| 100 | $4.36 | $436.00 |
| 500 | $3.9 | $1,950.00 |
| 1,000 | $3.49 | $3,490.00 |
PIC16C662-10/PT 개요
Background context: An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, digital I/O peripherals and often analog blocks on one die. Within the broader taxonomy, PIC16C662 belongs to the PIC16 family, which itself sits inside the 8-bit MCU category, the Microcontroller sub-family of Integrated Circuits (ICs). OTP EPROM memory denotes a programmable read-only cell technology that can be written once with a high-voltage programmer but cannot be electrically erased, making it well suited to high-volume production where firmware is finalized.
Key differentiating specifications include the 200 ns instruction cycle, 8-level hardware stack, 14-bit wide instruction word, integrated analog comparators with programmable voltage reference, Power-on Reset (POR), Brown-out Reset (BOR), Watchdog Timer (WDT) with its own on-chip RC oscillator, and In-Circuit Serial Programming (ICSP) capability. The 44-pin TQFP package exposes up to 33 I/O pins and provides 5 MIPS sustained throughput at 20 MHz clock, giving designers a compact footprint for cost-sensitive embedded designs.
The PIC16C662 employs a RISC-style Harvard architecture with separate program and data buses, allowing instruction fetch and operand access to occur in the same cycle. The internal oscillator and PLL-free design simplify BOM cost, while the dual analog comparators eliminate the need for external op-amps in signal-conditioning tasks such as battery monitoring or threshold detection.
Typical applications include appliance control, automotive body electronics, industrial sensor interfaces, smart card readers, battery chargers, LED lighting controllers, and embedded control boards. The integrated analog comparators make it well suited to threshold detection without external components.
When designing with this device, note that OTP memory cannot be field-updated; use the PIC16F flash-based equivalent (e.g., PIC16F914-I/PT) if firmware iteration is expected in production. ICSP programming still requires a high-voltage (typically 13 V) VPP pulse, so plan board layout to expose PGC, PGD and VPP test points.
This page synthesizes distributor pricing, package-compatible drop-in alternatives sourced from Microchip's own cross-reference tooling, and practical design notes not found in the standalone datasheet.
드롭인 대체품: PIC16C662-10/PT — 동일 패키지, 핀 호환. PCB 재작업이 필요한 다른 패키지 부품은 제외됩니다.
이 시리즈의 변형
다음과 드롭인 호환되는 동일 시리즈 모델: PIC16C662-10/PT (동일 폼 팩터 및 풋프린트) — 차이점: Program Memory Size, Program Memory Type, Package, Timers, Watchdog Timer.
빠른 비교 도구 — 나란히 비교할 대체 부품을 선택하십시오:
PIC16C662-10E/PT
✅ 드롭인✓ 재고 있음
$5.65 / 개
데이터시트 보기 →PIC16C662-04I/PT
✅ 드롭인📋 참조 대체품 (카탈로그에 없음)
PIC16F914-I/PT
✅ 드롭인✓ 재고 있음
$2.98 / 개
데이터시트 보기 →PIC16C662-10/PT 최대 정격 & 전기적 특성
| Architecture | 8-bit PIC16 RISC |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 7 KB (8K x 14-bit words) |
| RAM Size | 176 bytes |
| Data EEPROM | Not present (OTP device) |
| Maximum CPU Speed | 20 MHz (10 MHz for -10 suffix) |
| Instruction Cycle | 200 ns at 20 MHz clock |
| Instruction Set Size | 35 single-word instructions |
| I/O Pins | 33 |
| Timers | Timer0, Timer1, Timer2 |
| Analog Comparators | 2 on-chip |
| A/D Converter | None (PIC16C662 has comparators, not ADC) |
| Operating Voltage | 3.0 V to 5.5 V |
| 패키지 | 44-pin TQFP (PT), 10x10 mm |
| 실장 유형 | Surface Mount |
| RoHS 상태 | Compliant (lead-free PT suffix per Microchip) |
| Programming Method | ICSP (In-Circuit Serial Programming), high-voltage VPP |
| Watchdog Timer | Yes, with dedicated on-chip RC oscillator |
| Brown-out Reset (BOR) | Yes |
| Power-on Reset (POR) | Yes |
| Hardware Stack | 8 levels |
PIC16C662-10/PT 핀 구성
| 핀 1 | MCLR/VPP/RA5 — Master Clear (active-low reset) / Programming voltage input / PORTA bit 5 |
| 핀 2 | RA0/AN0 — PORTA bit 0 / analog comparator input |
| 핀 3 | RA1/AN1 — PORTA bit 1 / analog comparator input |
| 핀 4 | RA2/AN2 — PORTA bit 2 / analog comparator input |
| 핀 5 | RA3/AN3 — PORTA bit 3 / analog comparator input |
| 핀 6 | RA4 — PORTA bit 4 (open-drain option) |
| 핀 7 | RE0 — PORTE bit 0 |
| 핀 8 | RE1 — PORTE bit 1 |
| 핀 9 | RE2 — PORTE bit 2 |
| 핀 10 | VDD — Positive supply voltage |
| 핀 11 | VSS — Ground reference |
| 핀 12 | OSC1/CLKIN — Oscillator input / external clock input |
| 핀 13 | OSC2/CLKOUT — Oscillator output / clock output |
| 핀 14 | RC0 — PORTC bit 0 |
| 핀 15 | RC1 — PORTC bit 1 |
| 핀 16 | RC2 — PORTC bit 2 |
| 핀 17 | RC3 — PORTC bit 3 |
| 핀 18 | RD0 — PORTD bit 0 |
| 핀 19 | RD1 — PORTD bit 1 |
| 핀 20 | RD2 — PORTD bit 2 |
| 핀 21 | RD3 — PORTD bit 3 |
| 핀 22 | RD4 — PORTD bit 4 |
| 핀 23 | RD5 — PORTD bit 5 |
| 핀 24 | RD6 — PORTD bit 6 |
| 핀 25 | RD7 — PORTD bit 7 |
| 핀 26 | VSS — Ground reference |
| 핀 27 | VDD — Positive supply voltage |
| 핀 28 | RB7/PGD — PORTB bit 7 / ICSP data |
| 핀 29 | RB6/PGC — PORTB bit 6 / ICSP clock |
| 핀 30 | RB5 — PORTB bit 5 |
| 핀 31 | RB4 — PORTB bit 4 |
| 핀 32 | RB3 — PORTB bit 3 |
| 핀 33 | RB2 — PORTB bit 2 |
| 핀 34 | RB1 — PORTB bit 1 |
| 핀 35 | RB0/INT — PORTB bit 0 / external interrupt |
| 핀 36 | VSS — Ground reference |
| 핀 37 | VDD — Positive supply voltage |
| 핀 38 | RC4 — PORTC bit 4 |
| 핀 39 | RC5 — PORTC bit 5 |
| 핀 40 | RC6 — PORTC bit 6 |
| 핀 41 | RC7 — PORTC bit 7 |
| 핀 42 | RA6/OSC2 — PORTA bit 6 / alternate oscillator output (pin function varies by oscillator mode) |
| 핀 43 | RA7/OSC1 — PORTA bit 7 / alternate oscillator input (pin function varies by oscillator mode) |
| 핀 44 | VSS — Ground reference |
일반적인 애플리케이션
PIC16C662-10/PT 적합 용도: 6 애플리케이션s: Appliance Control Boards, Industrial Sensor Interfaces, Battery Chargers, LED Lighting Controllers, Automotive Body Electronics, Smart Card and RFID Readers.
Appliance Control Boards
The PIC16C662-10/PT's 33 digital I/O lines and two analog comparators make it well suited to washing-machine, dishwasher and HVAC control boards where discrete sensor inputs and relay/motor outputs dominate. At 5 MIPS throughput the core can scan keypad matrices, drive 7-segment displays and execute state-machine control loops in real time. The 3.0 V to 5.5 V operating range covers typical 5 V appliance rails, while the integrated comparators handle level sensing on water-level probes and door switches without extra op-amps. Place 100 nF decoupling on every VDD pin and route MCLR/VPP to an accessible test pad for ICSP in production.
추천
Industrial Sensor Interfaces
On-board analog comparators let the PIC16C662-10/PT directly threshold 4-20 mA loop signals or thermistor dividers without external analog ICs. The 200 ns instruction cycle supports 1 kHz closed-loop control loops in motor and valve applications, while 33 I/O drive multiple sensor strings and indicator LEDs. Brown-out Reset (BOR) and Watchdog Timer (WDT) protect against supply sag and code runaway common in 24 V industrial bus environments. Use optocouplers on every off-board signal to ride through 1 kV surge pulses per IEC 61000-4-5.
추천
Battery Chargers
The PIC16C662-10/PT's analog comparators can monitor battery voltage through a resistor divider and terminate charge via I/O-controlled MOSFET gates, replacing dedicated charger ASICs in low-cost designs. 33 I/O pins support cell-balancing FETs in multi-cell packs plus LED status indication. The 200 ns instruction cycle ensures tight PWM control at 25 kHz for switch-mode charger topologies. Brown-out Reset prevents deep-discharge damage by gating outputs when VDD drops below the safe threshold. Add a 10 ohm sense resistor for current-mode control and a 10 uF bulk cap on VDD.
추천
LED Lighting Controllers
The PIC16C662-10/PT's 33 I/O lines can drive multiplexed RGB matrix panels, dimming MOSFETs and addressable LED strings in commercial lighting fixtures. Hardware PWM through Timer2 plus the 5 MIPS core supports up to 16-bit PWM resolution at 1 kHz refresh for flicker-free dimming. The internal analog comparator enables ambient-light feedback loops without an external op-amp. Brown-out Reset ensures clean MCU reset during LED inrush events. Route all LED return currents to a star ground to avoid digital noise injection into the analog comparator inputs.
추천
Automotive Body Electronics
The PIC16C662-10/PT serves non-safety body modules such as seat controllers, mirror adjusters and HVAC blend-door actuators where 33 I/O and dual comparators handle Hall sensors and motor H-bridges. The -10E/PT industrial-temperature variant survives -40 C to +125 C underhood environments. Watchdog Timer plus Brown-out Reset provide field reliability demanded by 12 V automotive supply rails with cranking transients. Add TVS diodes on every connector pin and a series ferrite on VDD to clamp load-dump pulses per ISO 7637-2.
추천
Smart Card and RFID Readers
33 I/O lines on the PIC16C662-10/PT support ISO 7816 smart card interfaces, LCD character displays and keypad inputs in cost-sensitive access-control readers. The 200 ns instruction cycle handles ATR (Answer-To-Reset) parsing and T=0/T=1 protocol stacks in firmware. Internal analog comparators detect card insertion via contact-debounce circuits. Place ESD protection diodes on every card-contact pin to survive 8 kV contact discharge per IEC 61000-4-2.
추천
추천 제품 요약
엔지니어링 참조 데이터: PIC16C662-10/PT — 비교, 설계 지침 및 규정 준수 정보.
선택 가이드
대체품과의 비교
| 파라미터 | 이 제품 | PIC16C662-10E/PT | PIC16C662-04I/PT | PIC16F914-I/PT |
|---|---|---|---|---|
| Package | TQFP-44 (PT) 10x10 mm | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory Type | OTP EPROM 7 KB | OTP EPROM 7 KB - same | OTP EPROM 7 KB - same | Flash 7 KB - upgrade |
| Max Clock Speed | 10 MHz (200 ns cycle) | 10 MHz - same | 4 MHz (250 ns cycle) - slower | 20 MHz (200 ns cycle) - faster |
| ADC | None (2 comparators) | None (2 comparators) - same | None (2 comparators) - same | 10-bit, 14 channels |
| I/O Pins | 33 | 33 - same | 33 - same | 33 - same |
| Lifecycle Status | NRND | NRND - same | NRND - same | Active - preferred for new designs |
주요 차별점
- Extended-temperature OTP variant available in same package (vs PIC16C662-04I/PT)
- Flash-based superset for firmware iteration (vs PIC16F914-I/PT)
- OTP program memory for high-volume production security (vs PIC16C662-10E/PT)
설계 노트
Place a 10 uF tantalum or aluminum bulk capacitor on each VDD pin pair (pins 10/11, 26/27, 36/37) along with a 100 nF ceramic decoupling cap within 5 mm of the MCU body. The PIC16C662-10/PT draws up to 20 mA active at 20 MHz; undersized decoupling causes POR misfires during motor inrush. Brown-out Reset (BOR) thresholds are user-configurable but default to 4.0 V on 5 V parts - select the lowest threshold that still protects downstream logic.
OTP EPROM cannot be electrically erased: a miswritten PIC16C662-10/PT must be physically discarded. Designers prototyping new firmware should evaluate the flash-based PIC16F914-I/PT in the same TQFP-44 footprint, then port final code to the OTP device once frozen. ICSP requires a high-voltage (typically 13 V) VPP pulse on the MCLR pin - leave a dedicated test pad accessible to the programming fixture rather than tying MCLR directly to VDD.
Route the OSC1/OSC2 crystal traces as short and symmetric as possible, surrounded by a ground guard ring. Place load capacitors (typically 15-33 pF) within 2-3 mm of the OSC pins. Keep digital switching traces (PORTB, PORTD) at least 5 mm away from the analog comparator inputs (RA0-RA3) to minimize coupling that would cause false comparator triggers. Use a single-point ground star tying the MCU ground to the analog ground return.
규정 준수 정보
RoHS compliant per Microchip product page; PT suffix designates lead-free finish. AEC-Q100 not qualified - PIC16C662 is industrial/consumer grade only. Halogen-free status not explicitly stated in available data.