PIC16C662T-10/PQ - 8-Bit OTP MCU, 7KB, 10MHz, 44-MQFP | Microchip
Référence : PIC16C662T-10/PQ ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $14.5 | $14,50 |
| 10 | $13.1 | $131,00 |
| 100 | $11.75 | $1 175,00 |
| 500 | $10.4 | $5 200,00 |
| 1 000 | $9.2 | $9 200,00 |
PIC16C662T-10/PQ Présentation
An 8-bit microcontroller (MCU) is a programmable computing engine that executes instructions on 8-bit data paths and serves as the embedded brain of consumer appliances, industrial controllers, and legacy automotive subsystems. MCUs sit below microprocessors in the silicon hierarchy and above discrete logic, integrating CPU core, non-volatile program memory, working RAM, and peripherals into a single die. The PIC16C family targets cost-sensitive applications where OTP programmability, deterministic instruction timing, and small footprint are valued over in-system re-programmability.
Key features of the PIC16C662T-10/PQ include 22 I/O pins with individually programmable direction, a 14-bit instruction word, a Harvard architecture with separate program and data buses, and a wide operating voltage range typical of the PIC16C series. The device is well-suited to applications that require moderate code density (4K words), low power consumption, and analog signal conditioning via on-chip comparators.
Typical applications include appliance control boards, industrial sensor interfaces, security and access-control panels, HVAC actuators, and legacy embedded products. Designers typically pair it with external EEPROM or serial ADC peripherals when non-volatile data storage or higher-resolution analog input is required.
When designing with the PIC16C662T-10/PQ, ensure the OTP window is masked if code security is required, and account for the 10 MHz oscillator ceiling when selecting crystal or resonator components. Because this is an OTP device, firmware verification must be performed on-window or on pre-programmed parts before final commit; consider a flash-based PIC16F equivalent if in-field firmware updates are required.
Alternatives de remplacement direct pour PIC16C662T-10/PQ — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC16C662T-10/PQ (même facteur de forme et même empreinte) — différant par Program Memory Type, Program Memory Size, Maximum Clock Frequency, Package, Core Architecture.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC16C662-10/PQ
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC16C662-20/PQ
✅ Remplacement direct✓ En stock
$9.75 / unité
Voir la fiche technique →PIC16C662-20E/PQ
✅ Remplacement direct✓ En stock
$10.95 / unité
Voir la fiche technique →PIC16C662-20I/PQ
✅ Remplacement direct✓ En stock
$5.74 / unité
Voir la fiche technique →PIC16C662T-04E/PT
✅ Remplacement direct✓ En stock
$6.2 / unité
Voir la fiche technique →PIC16C662T-10/PQ Valeurs maximales et caractéristiques électriques
| Core | 8-bit PIC |
| Family | PIC16C |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 7 KB (4K x 14 words) |
| Data RAM | 176 bytes |
| Data EEPROM | Not present (external required) |
| Fréquence d'horloge maximale | 10 MHz |
| I/O Pins | 22 |
| Analog Comparators | 2 |
| ADC | None (external required) |
| Brown-Out Detect (BOD) | Yes |
| Power-On Reset (POR) | Yes |
| Watchdog Timer (WDT) | Yes |
| Package Type | 44-MQFP (PQ) 10x10 mm |
| Type de montage | Surface Mount |
| Lead Pitch | 0.80 mm |
| Architecture | Harvard (separate program/data buses) |
| Instruction Word Width | 14 bits |
Configuration des broches de PIC16C662T-10/PQ
| Broche 1 | OSC1/CLKIN — Oscillator input or external clock input |
| Broche 2 | OSC2/CLKOUT — Oscillator output |
| Broche 3 | MCLR — Master clear (reset) input, active low |
| Broche 4 | RA0 — PORTA bit 0 (digital I/O) |
| Broche 5 | RA1 — PORTA bit 1 (digital I/O) |
| Broche 6 | RA2 — PORTA bit 2 (digital I/O) |
| Broche 7 | RA3 — PORTA bit 3 (digital I/O) |
| Broche 8 | RA4 — PORTA bit 4 (digital I/O / T0CKI) |
| Broche 9 | RA5 — PORTA bit 5 (digital I/O / SS) |
| Broche 10 | VSS — Ground reference |
| Broche 11 | VDD — Positive supply voltage |
| Broche 12 | RB0/INT — PORTB bit 0 (external interrupt) |
| Broche 13 | RB1 — PORTB bit 1 (digital I/O) |
| Broche 14 | RB2 — PORTB bit 2 (digital I/O) |
| Broche 15 | RB3 — PORTB bit 3 (digital I/O) |
| Broche 16 | RB4 — PORTB bit 4 (digital I/O) |
| Broche 17 | RB5 — PORTB bit 5 (digital I/O) |
| Broche 18 | RB6 — PORTB bit 6 (digital I/O / PGC) |
| Broche 19 | RB7 — PORTB bit 7 (digital I/O / PGD) |
| Broche 20 | VSS — Ground reference |
| Broche 21 | VDD — Positive supply voltage |
| Broche 22 | RC0 — PORTC bit 0 (digital I/O) |
| Broche 23 | RC1 — PORTC bit 1 (digital I/O) |
| Broche 24 | RC2 — PORTC bit 2 (digital I/O) |
| Broche 25 | RC3 — PORTC bit 3 (digital I/O / SCL) |
| Broche 26 | RC4 — PORTC bit 4 (digital I/O / SDA) |
| Broche 27 | RC5 — PORTC bit 5 (digital I/O / SDO) |
| Broche 28 | RC6 — PORTC bit 6 (digital I/O / TX) |
| Broche 29 | RC7 — PORTC bit 7 (digital I/O / RX) |
| Broche 30 | VSS — Ground reference |
| Broche 31 | VDD — Positive supply voltage |
| Broche 32 | RE0/RD — PORTE bit 0 / read control |
| Broche 33 | RE1/WR — PORTE bit 1 / write control |
| Broche 34 | RE2/CS — PORTE bit 2 / chip select |
| Broche 35 | NC — Not connected |
| Broche 36 | NC — Not connected |
| Broche 37 | NC — Not connected |
| Broche 38 | NC — Not connected |
| Broche 39 | NC — Not connected |
| Broche 40 | NC — Not connected |
| Broche 41 | NC — Not connected |
| Broche 42 | NC — Not connected |
| Broche 43 | NC — Not connected |
| Broche 44 | NC — Not connected |
Applications typiques
PIC16C662T-10/PQ convient pour 6 applications: Appliance Control Boards, Industrial Sensor Interface Panels, Security and Access-Control Panels, HVAC Actuator Controllers, Legacy Embedded Product Maintenance, Consumer Remote Controls and IR Transmitters.
Appliance Control Boards
The PIC16C662T-10/PQ's 7 KB OTP program memory, 22 I/O, and 10 MHz clock make it well suited for washing-machine, dishwasher, and microwave control boards. The Harvard architecture and deterministic 100 ns instruction cycle guarantee loop timing for relay sequencing, sensor polling, and LED indicator multiplexing. Two on-chip analog comparators handle zero-crossing detection for triac-driven heater and motor loads without an external ADC. Brown-Out Detect protects against low-voltage brown-outs common in appliance mains environments.
Recommandé
Industrial Sensor Interface Panels
For industrial sensor-interface panels, the PIC16C662T-10/PQ provides 22 digital I/O lines for polling limit switches, encoders, and indicator lamps. Its OTP memory ensures firmware cannot be inadvertently modified by voltage transients on factory floors. The 176-byte RAM is sufficient for buffering sensor states and short command queues. The two analog comparators allow direct interface to thermistor-bridge and photocell circuits, eliminating external op-amps in cost-sensitive designs.
Recommandé
Security and Access-Control Panels
The PIC16C662T-10/PQ serves as the main controller in security keypads, card-reader interfaces, and access-control panels where 7 KB of code handles PIN validation, relay actuation, and alarm-tone generation. Its OTP memory prevents reverse engineering of secure credential algorithms. Brown-Out Detect and Watchdog Timer provide the fail-safe behavior required in security-system listings. The 10 MHz clock easily meets debounce and timing-slack requirements for keypad scanning and tamper-switch monitoring.
Recommandé
HVAC Actuator Controllers
In HVAC damper and valve actuator controllers, the PIC16C662T-10/PQ drives stepper or DC motor bridges via PWM derived from its on-chip timers, while polling temperature sensors through the two analog comparators. The 14-bit instruction width enables compact state-machine code for proportional-integral control loops. The 22 I/O lines support multi-zone damper arrays, and the Harvard architecture ensures deterministic loop timing even under interrupt load from the Watchdog Timer.
Recommandé
Legacy Embedded Product Maintenance
The PIC16C662T-10/PQ remains in demand for sustaining legacy OEM products whose firmware was committed to OTP silicon years ago. Field replacements and warranty repairs require the exact same silicon to maintain functional and timing compatibility. The 44-MQFP footprint is widely supported by assembly lines still running these legacy boards. For existing designs, Microchip's NRND classification allows continued supply through authorized distribution, but new design-ins should migrate to the flash-based PIC16F877A-I/PQ.
Recommandé
Consumer Remote Controls and IR Transmitters
The PIC16C662T-10/PQ is used in higher-end consumer remote controls that need more code space than typical 8-pin PIC MCUs can offer. Its 7 KB program memory holds multi-protocol IR transmission libraries (RC5, NEC, SIRC) plus custom button-mapping tables. The 10 MHz clock supports accurate 38 kHz carrier generation with minimal software overhead. OTP memory prevents cloning of proprietary IR protocols, an important feature for branded consumer-electronics OEMs.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC16C662T-10/PQ — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC16C662-10/PQ | PIC16C662-20/PQ | PIC16C662-20E/PQ | PIC16C662-20I/PQ | PIC16C662T-04E/PT |
|---|---|---|---|---|---|---|
| Package | MQFP-44 (PQ) 10x10 mm | MQFP-44 (PQ) 10x10 mm - same | MQFP-44 (PQ) 10x10 mm - same | MQFP-44 (PQ) 10x10 mm - same | MQFP-44 (PQ) 10x10 mm - same | TQFP-44 (TQ) - different package family but pin-compatible |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory Type | OTP (7 KB) | OTP (7 KB) - same | OTP (7 KB) - same | OTP (7 KB) - same | OTP (7 KB) - same | OTP (7 KB) - same |
| Maximum Clock Frequency | 10 MHz | 10 MHz - same | 20 MHz (+100%) | 20 MHz (+100%) | 20 MHz (+100%) | 4 MHz (-60%) |
| Operating Temperature Range | Commercial (0C to +70C) | Commercial - same | Commercial - same | Extended (-40C to +125C) | Industrial (-40C to +85C) | Extended (-40C to +125C) |
| Data RAM | 176 bytes | 176 bytes - same | 176 bytes - same | 176 bytes - same | 176 bytes - same | 176 bytes - same |
| I/O Pins | 22 | 22 - same | 22 - same | 22 - same | 22 - same | 22 - same |
| Analog Comparators | 2 | 2 - same | 2 - same | 2 - same | 2 - same | 2 - same |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | NRND |
Principaux différenciateurs
- Tape-and-reel packaging for high-volume SMD assembly (vs PIC16C662-10/PQ)
- 10 MHz speed grade optimized for moderate-cost OTP designs (vs PIC16C662-20/PQ)
- MQFP-44 (PQ) package provides lowest-profile SMT option (vs PIC16C662T-04E/PT)
Notes de conception
Decouple the PIC16C662T-10/PQ VDD pins (11, 21, 31) with 100 nF ceramic capacitors placed within 5 mm of each pin. Add a single 10 uF tantalum or aluminum bulk capacitor at the board entry point to suppress motor and relay switching transients. The device has three VDD/VSS pairs internally bonded - failure to decouple each pair can cause code-fetch corruption under high dI/dt loads.
Route the MCLR reset line away from switching nodes and add a 10 kohm pull-up to VDD. Place the crystal or resonator within 10 mm of OSC1/OSC2 pins and guard the traces with a ground pour to minimize EMI coupling. The MQFP-44 lead pitch is 0.80 mm - use 0.40 mm wide traces and 0.20 mm clearance to maintain manufacturability at outsourced assembly houses.
Because PIC16C662T-10/PQ is OTP memory, any code bug committed to the silicon cannot be patched in the field - thorough verification on a PIC16C662 /JW (windowed) part or on a pin-compatible PIC16F877A-I/PQ emulator is mandatory before production commit. Brown-Out Detect voltage must be configured via configuration fuses lower than the minimum expected VDD; leaving BOD disabled in noisy environments can lead to corrupted program-counter state on brown-out events.
Informations de conformité
RoHS, REACH, lead-free, and halogen-free status not explicitly stated in verified distributor data for this NRND OTP part. Conflict-minerals compliance follows Microchip's standard corporate declaration. Verify specific date-code compliance with the supplier before RoHS-only assembly.
