PIC16C662T-04E/PT - 8-bit MCU, 7KB OTP, 33 I/O | Microchip
N.º da peça: PIC16C662T-04E/PT ✗ Fim de vida| Qtd. | Preço unitário | Total |
|---|---|---|
| 1 | $9.85 | $9,85 |
| 10 | $9.2 | $92,00 |
| 100 | $8.1 | $810,00 |
| 500 | $7.05 | $3.525,00 |
| 1.000 | $6.2 | $6.200,00 |
PIC16C662T-04E/PT Visão geral
An 8-bit microcontroller (MCU) is a small programmable computer on a single integrated circuit that combines a CPU, memory, and peripherals. Within the broader semiconductor hierarchy, MCUs belong to microcontrollers -> microcomputers -> processors -> semiconductors. The PIC16C6x family specifically targets low-power, cost-sensitive embedded control where deterministic instruction execution (a single-cycle RISC core) and a rich peripheral set matter more than raw clock speed.
Key features of the PIC16C662 include its 14-bit instruction word, 8-level hardware stack, two 8-bit timers and one 16-bit timer/counter, a Watchdog Timer with its own on-chip RC oscillator, an analog comparator, a capture/compare/PWM (CCP) module, and a synchronous/asynchronous serial port (USART/SCI). The part also offers power-saving SLEEP mode, in-circuit serial programming (ICSP) capability, and programmable code protection.
Architecturally, the PIC16C662 uses a Harvard-class RISC core with separate program and data buses, which lets a 14-bit instruction fetch and an 8-bit data read occur in the same Tcy. This yields predictable 4 MHz performance at 4 MHz oscillator input on the -04 speed grade and predictable interrupt latency for real-time control loops.
Typical applications include white-goods and appliance control, low-end industrial automation, automotive body and interior modules, HVAC fan and damper control, and battery-powered instrumentation where the OTP memory and CMOS low-power design provide a favorable cost-per-function ratio. The wide 33-I/O count also makes it suitable for keyboard-scanning, LED-driving, and simple user-interface boards.
When designing with this device, note that OTP memory is one-time programmable and cannot be erased, so firmware must be fully validated before programming. Decoupling, ground-return integrity, and an external oscillator or resonator circuit (if accuracy beyond the internal RC is required) are the three most common layout items to review.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, with cross-references to PIC16C662 variants for engineers seeking pin-compatible alternatives.
Alternativas drop-in para PIC16C662T-04E/PT — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com PIC16C662T-04E/PT (mesmo formato e footprint) — diferindo em Package, Core Architecture, RoHS Status, Program Memory Type, Maximum Clock Frequency.
Ferramenta de comparação rápida — selecione peças alternativas para comparação lado a lado:
PIC16C662-04E/PT
✅ Drop-In✓ Em estoque
$5.97 / unidade
Ver ficha técnica →PIC16C662-20E/PT
✅ Drop-In✓ Em estoque
$8.2 / unidade
Ver ficha técnica →PIC16C662T-04I/PT
✅ Drop-In ⚠️ Especificações não verificadas✓ Em estoque
$5.2 / unidade
Ver ficha técnica →PIC16F747-I/PT
✅ Drop-In✓ Em estoque
$4.4 / unidade
Ver ficha técnica →PIC16C662T-04E/PT Classificações máximas e características elétricas
| Product Type | 8-bit RISC Microcontroller (MCU) |
| Core Architecture | PIC16 Harvard-class RISC |
| Program Memory Type | OTP (One-Time-Programmable) |
| Program Memory Size | 7 KB (4K x 14) |
| Instruction Word Width | 14 bits |
| RAM Size | 176 bytes |
| EEPROM Size | Not present |
| Number of I/O Pins | 33 |
| Frequência máxima de clock | 4 MHz (speed grade -04) |
| Supply Voltage (Vcc) | 4 V to 6 V |
| ADC | Not present (digital-only MCU) |
| Timers | Two 8-bit + one 16-bit Timer/Counter |
| Serial Interface | USART/SCI (synchronous + asynchronous) |
| Capture/Compare/PWM (CCP) | Yes |
| Analog Comparator | Yes |
| Watchdog Timer | Yes, with dedicated on-chip RC oscillator |
| Encapsulamento | 44-pin TQFP (PT), 10x10 mm |
| Tipo de montagem | Surface Mount |
| Faixa de temperatura de operação | -40C to +125C (Extended, -E suffix) |
| Status RoHS | Non-compliant (legacy OTP) |
| Lead-Free | unknown |
Configuração de pinos do PIC16C662T-04E/PT
| Pino 1 | OSC1/CLKIN — Oscillator input / external clock input |
| Pino 2 | RA0/AN0 — Digital I/O / analog comparator input (no ADC on this part) |
| Pino 3 | RA1/AN1 — Digital I/O / analog comparator input |
| Pino 4 | RA2/AN2 — Digital I/O / analog comparator reference |
| Pino 5 | RA3/AN3 — Digital I/O / analog comparator output |
| Pino 6 | RA4/T0CKI — Digital I/O / Timer0 clock input |
| Pino 7 | RA5/SS — Digital I/O / SPI slave select |
| Pino 8 | Vss — Ground |
| Pino 9 | OSC2/CLKOUT — Oscillator output / clock output |
| Pino 10 | RC0/T1OSO/T1CKI — Digital I/O / Timer1 oscillator output or clock input |
| Pino 11 | RC1/T1OSI/CCP2 — Digital I/O / Timer1 oscillator input / CCP2 |
| Pino 12 | RC2/CCP1 — Digital I/O / CCP1 PWM output |
| Pino 13 | RC3/SCK/SCL — Digital I/O / SPI clock / I2C clock |
| Pino 14 | RC4/SDI/SDA — Digital I/O / SPI data in / I2C data |
| Pino 15 | RC5/SDO — Digital I/O / SPI data out |
| Pino 16 | RC6/TX/CK — Digital I/O / USART TX / clock |
| Pino 17 | RC7/RX/DT — Digital I/O / USART RX / data |
| Pino 18 | Vss — Ground |
| Pino 19 | Vdd — Positive supply (4 V to 6 V) |
| Pino 20 | RB0/INT — Digital I/O / external interrupt |
| Pino 21 | RB1 — Digital I/O |
| Pino 22 | RB2 — Digital I/O |
| Pino 23 | RB3/PGM — Digital I/O / low-voltage programming |
| Pino 24 | RB4 — Digital I/O / interrupt-on-change |
| Pino 25 | RB5 — Digital I/O / interrupt-on-change |
| Pino 26 | RB6/PGC — Digital I/O / ICSP clock |
| Pino 27 | RB7/PGD — Digital I/O / ICSP data |
| Pino 28 | Vdd — Positive supply (4 V to 6 V) |
| Pino 29 | Vss — Ground |
| Pino 30 | RD0 — Digital I/O |
| Pino 31 | RD1 — Digital I/O |
| Pino 32 | RD2 — Digital I/O |
| Pino 33 | RD3 — Digital I/O |
| Pino 34 | RD4 — Digital I/O |
| Pino 35 | RD5 — Digital I/O |
| Pino 36 | RD6 — Digital I/O |
| Pino 37 | RD7 — Digital I/O |
| Pino 38 | Vss — Ground |
| Pino 39 | Vdd — Positive supply (4 V to 6 V) |
| Pino 40 | RE0/RD — Digital I/O / parallel slave port read |
| Pino 41 | RE1/WR — Digital I/O / parallel slave port write |
| Pino 42 | RE2/CS — Digital I/O / parallel slave port chip select |
| Pino 43 | Vss — Ground |
| Pino 44 | MCLR/Vpp — Master clear (reset) / programming voltage |
Aplicações típicas
PIC16C662T-04E/PT é adequado para 7 aplicaçãos: White Goods and Appliance Control, Automotive Body and Interior Modules, HVAC Fan and Damper Control, Battery-Powered Instrumentation, User Interface and Keypad Scanning, Industrial Sensor Interface Boards, Smart Home Edge Controllers.
White Goods and Appliance Control
The PIC16C662T-04E/PT's 33 I/O count, 7 KB OTP memory, and low CMOS operating current make it a cost-effective controller for washing-machine, dishwasher, microwave, and refrigerator boards. The 4 MHz instruction cycle gives 1 us deterministic loop times, which is sufficient for relay and triac sequencing, keypad scanning, and LED display multiplexing. Pin compatibility with the flash-based PIC16F747 family enables field firmware updates without changing PCB layout.
Recomendado
Automotive Body and Interior Modules
With the extended -40C to +125C temperature grade (-E suffix) and 33 digital I/O lines, the PIC16C662T-04E/PT fits body controllers, mirror adjusters, seat controllers, and interior lighting modules. The on-chip USART enables LIN-bus slave communication via an external LIN transceiver. Note that the part is not AEC-Q100 qualified - for new automotive designs migrate to AEC-Q100-qualified PIC16F equivalents or dsPIC33 family members.
Recomendado
HVAC Fan and Damper Control
The PIC16C662's two 8-bit timers plus one 16-bit timer support the multi-channel PWM needed for fan-speed control and damper actuator drive via the on-chip CCP module. Its 4 V to 6 V supply range matches 5 V HVAC board rails directly without an extra LDO. The 176 bytes of RAM are sufficient for proportional control loops, while the 7 KB OTP holds the full control law and look-up tables.
Recomendado
Battery-Powered Instrumentation
The PIC16C662's CMOS design, low quiescent current in SLEEP mode, and programmable Watchdog Timer with dedicated RC oscillator make it a viable controller for handheld meters, portable test gear, and remote sensor nodes. The 4 MHz oscillator at 4-6 V keeps active current low while the 14-bit instruction width provides good code density. Brown-out reset and power-on reset protect against battery brown-out events.
Recomendado
User Interface and Keypad Scanning
With 33 digital I/O, the PIC16C662T-04E/PT can scan 8x8 matrix keypads and drive multiplexed 7-segment or 14-segment LED displays directly through current-limiting resistors. The CCP module generates the display refresh timing without software overhead, freeing the CPU for application logic. The 7 KB OTP comfortably stores debounce algorithms, lookup tables, and command interpreters for menu-driven UIs.
Recomendado
Industrial Sensor Interface Boards
The PIC16C662's USART/SCI module supports RS-232 and RS-485 communication to host PLCs or SCADA nodes, while its 33 I/O lines interface to digital sensors, optocouplers, and 24 V industrial signal levels via external buffers. The extended temperature grade is essential for cabinet-mounted equipment. The on-chip analog comparator allows threshold detection without an external op-amp.
Recomendado
Smart Home Edge Controllers
Compact 44-pin TQFP form factor, low cost, and on-chip USART allow the PIC16C662T-04E/PT to serve as a node controller for smart-home subsystems such as lighting dimmers, blind motors, and door/window sensors. Its deterministic 1 us instruction cycle is well-suited to dimmer zero-cross detection and triac firing. For new designs prefer the flash-based PIC16F15344 or PIC16F180 family for modern peripherals and Core Independent Peripherals.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para PIC16C662T-04E/PT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | PIC16C662-04E/PT | PIC16C662-20E/PT | PIC16C662T-04I/PT | PIC16F747-I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-pin TQFP (PT) | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same |
| Program Memory Type | OTP (7 KB) | OTP (7 KB) | OTP (7 KB) | OTP (7 KB) | Flash (7 KB) |
| Maximum Clock Frequency | 4 MHz | 4 MHz | 20 MHz | 4 MHz | 20 MHz |
| Temperature Grade | Extended (-40C to +125C) | Extended (-40C to +125C) | Extended (-40C to +125C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) |
| Number of I/O | 33 | 33 | 33 | 33 | 36 |
| ADC | Not present | Not present | Not present | Not present | 8-channel 8-bit |
| RoHS Compliance | Non-compliant | Non-compliant | Non-compliant | Non-compliant | Compliant |
| Lifecycle Status | NRND | NRND | NRND | NRND | Active |
Principais diferenciais
- Extended temperature range for industrial and automotive environments (vs PIC16C662T-04I/PT (industrial -40C to +85C))
- Higher maximum clock speed option in same package (vs PIC16C662-20E/PT)
- Reprogrammable flash alternative available for firmware updates (vs PIC16F747-I/PT)
Notas de projeto
Decouple every Vdd pin with a 100 nF ceramic capacitor placed within 5 mm of the package pin. According to the Microchip PIC16C662 datasheet, the device has three Vdd pins (19, 28, 39) and four Vss pins (8, 18, 29, 38) on the TQFP-44 package; each Vdd must have its own decoupling capacitor and the ground returns must form a low-inductance star or grid. Adding a bulk 10 uF tantalum or aluminum polymer cap near the IC supplies the transient current during peripheral switching.
Keep the OSC1/OSC2 traces short and surround them with a ground guard ring to minimize radiated EMI and stray pickup. For a 4 MHz crystal or resonator, route the traces as a differential pair of less than 10 mm length. Place C1 and C2 (typically 15-33 pF) from each oscillator pin to ground as close as possible to the IC. Per Microchip oscillator design notes, using an external parallel-resonant crystal with a series resistor (Rs 100-330 ohm) prevents overdriving the oscillator at low Vdd.
OTP memory is one-time programmable - firmware errors cannot be corrected after programming. Validate the HEX file against the full production test set in a flash-equivalent PIC16F662 or PIC16F747 socket before committing to the OTP die. Also note that the MCLR pin (pin 44) must never be left floating; tie it through a 10 kohm pull-up to Vdd, with the ICSP programmer diode-isolated, otherwise spurious resets will occur in noisy industrial environments.
The 44-pin TQFP (PT) package has a junction-to-ambient thermal resistance of approximately 50 C/W (still air) per the Microchip package outline. At the maximum 4 MHz clock and 6 V supply, the active current of about 5 mA creates only ~30 mW dissipation, so the junction temperature rise is negligible (<2 C). For high-IO-count designs driving many outputs continuously, calculate total dissipation from I/O sink current and ensure junction stays below 125 C for the extended temperature grade.
Informações de conformidade
PIC16C662 family is not RoHS compliant per Microchip legacy datasheet notes; uses lead-bearing terminations required by OTP process. Not AEC-Q100 qualified - automotive applications should migrate to PIC16F1939-I/PT or dsPIC33 family. No on-chip EEPROM.