PIC16LC662T-04/PT - 8-bit PIC MCU, 7KB OTP, 4MHz | Microchip
Артикул: PIC16LC662T-04/PT ✗ Снят с производства| Кол-во | Цена за ед. | Итого |
|---|---|---|
| 1 | $8.95 | $8,95 |
| 10 | $8.05 | $80,50 |
| 100 | $7.15 | $715,00 |
| 500 | $6.35 | $3.175,00 |
| 1.000 | $5.65 | $5.650,00 |
PIC16LC662T-04/PT Обзор
A microcontroller (MCU) is a single-chip computer containing a CPU core, program memory, working RAM, and programmable I/O peripherals. The PIC16LC662 belongs to the mid-range PIC16 architecture, sitting in the PIC microcontroller family hierarchy as: PIC16LC662 -> PIC16 mid-range MCU -> 8-bit RISC microcontroller -> embedded controller -> semiconductor. The 14-bit instruction word and 35-instruction RISC core make it well suited to low-power, deterministic embedded control tasks.
Key features include 8-bit data width, 7KB OTP for firmware storage, 176-byte data RAM, 33 I/O pins with programmable direction, four oscillator modes (RC, LP, XT, HS) selectable in software, and an external oscillator interface. On-chip peripherals typically include timers, a watchdog timer, and an analog comparator. The 4 MHz maximum clock and 33 I/O make the device well matched to mid-complexity control loops.
Typical applications include industrial automation controllers, consumer electronics front panels, automotive body and comfort modules, low-end sensor signal conditioning, and small white-goods appliances. Designers typically pair the LC662 with external EEPROM, an LCD driver, and an RS-232/RS-485 transceiver when building human-machine interfaces or distributed sensor nodes.
When designing with this device, ensure the OTP programming window is reserved on the PCB (high-voltage VPP access) since OTP parts cannot be reprogrammed. Place a 0.1 uF decoupling capacitor on every VDD/VDDC pin pair and route the external clock or crystal within 1 cm of the OSC1/OSC2 pins to maintain signal integrity.
This page synthesizes distributor pricing, drop-in alternative MPNs, and practical design notes not found in the manufacturer datasheet, helping engineers select and source compatible PIC16LC662 variants for legacy or new designs.
Аналоги без доработки для PIC16LC662T-04/PT — тот же корпус, pin-to-pin совместимость. Компоненты в других корпусах, требующие переработки PCB, исключены.
Варианты в этой серии
Модели той же серии, совместимые без доработки с PIC16LC662T-04/PT (тот же форм-фактор и посадочное место) — отличается по Program Memory Size, RAM Size, Mounting Type, Package / Case, ADC.
Инструмент быстрого сравнения — выберите альтернативные компоненты для сравнения бок о бок:
PIC16LC662-04I/PT
✅ Прямая замена✓ В наличии
$4.25 / шт.
Открыть даташит →PIC16LC662-04/L
✅ Прямая замена✓ В наличии
$4.95 / шт.
Открыть даташит →PIC16LC66-04I/SP
✅ Прямая замена✓ В наличии
$3.65 / шт.
Открыть даташит →PIC16LC66-04I/SO
✅ Прямая замена✓ В наличии
$2.78 / шт.
Открыть даташит →PIC16LC66-04/SO
✅ Прямая замена✓ В наличии
$2.4 / шт.
Открыть даташит →PIC16F946-I/PT
✅ Прямая замена📋 Справочный аналог (нет в каталоге)
PIC16LC662T-04/PT Максимальные параметры и электрические характеристики
| Product Type | 8-bit RISC Microcontroller (MCU) |
| Family | PIC16 mid-range |
| Program Memory Size | 7 KB (4K x 14) OTP |
| RAM Size | 176 x 8 bytes |
| Number of I/O | 33 |
| Максимальная тактовая частота | 4 MHz |
| Instruction Cycle Time | 200 ns (single-cycle) |
| Напряжение питания | 3.0 V to 6.0 V (3.3 V / 5 V nominal) |
| Рабочая температура | -40 C to +85 C (industrial, inferred from /PT suffix) |
| Корпус / Типоразмер | 44-pin TQFP (PT) |
| Тип монтажа | Surface Mount |
| Oscillator Type | External |
| Instruction Set | 35 instructions, 14-bit word |
| Packaging | Tape & Reel (TR) |
Конфигурация выводов PIC16LC662T-04/PT
| Контакт 1 | RA0/AN0 — PORTA bit 0 / analog input 0 (multiplexed) |
| Контакт 2 | RA1/AN1 — PORTA bit 1 / analog input 1 (multiplexed) |
| Контакт 3 | RA2/AN2 — PORTA bit 2 / analog input 2 (multiplexed) |
| Контакт 4 | RA3/AN3/VREF+ — PORTA bit 3 / analog input 3 / ADC VREF+ |
| Контакт 5 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Контакт 6 | RA5/AN4/SS — PORTA bit 5 / analog input 4 / SPI slave select |
| Контакт 7 | VSS — Ground reference |
| Контакт 8 | OSC1/CLKIN — External clock input / crystal oscillator pin 1 |
| Контакт 9 | OSC2/CLKOUT — Crystal oscillator pin 2 / clock output |
| Контакт 10 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator out / Timer1 clock in |
| Контакт 11 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator in / CCP2 |
| Контакт 12 | RC2/CCP1 — PORTC bit 2 / Capture-Compare-PWM 1 |
| Контакт 13 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Контакт 14 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Контакт 15 | RC5/SDO — PORTC bit 5 / SPI data out |
| Контакт 16 | RC6/TX/CK — PORTC bit 6 / USART TX / USART clock |
| Контакт 17 | RC7/RX/DT — PORTC bit 7 / USART RX / USART data |
| Контакт 18 | VSS — Ground reference |
| Контакт 19 | VDD — Positive supply (3.0-6.0 V) |
| Контакт 20 | RB0/INT — PORTB bit 0 / external interrupt |
| Контакт 21 | RB1 — PORTB bit 1 |
| Контакт 22 | RB2 — PORTB bit 2 |
| Контакт 23 | RB3 — PORTB bit 3 |
| Контакт 24 | RB4 — PORTB bit 4 |
| Контакт 25 | RB5 — PORTB bit 5 |
| Контакт 26 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Контакт 27 | RB7/PGD — PORTB bit 7 / ICSP data |
| Контакт 28 | MCLR/VPP — Master clear reset / OTP programming voltage |
| Контакт 29 | RD0 — PORTD bit 0 |
| Контакт 30 | RD1 — PORTD bit 1 |
| Контакт 31 | RD2 — PORTD bit 2 |
| Контакт 32 | RD3 — PORTD bit 3 |
| Контакт 33 | RD4 — PORTD bit 4 |
| Контакт 34 | RD5 — PORTD bit 5 |
| Контакт 35 | RD6 — PORTD bit 6 |
| Контакт 36 | RD7 — PORTD bit 7 |
| Контакт 37 | RE0/RD — PORTE bit 0 / parallel-port read strobe |
| Контакт 38 | RE1/WR — PORTE bit 1 / parallel-port write strobe |
| Контакт 39 | RE2/CS — PORTE bit 2 / parallel-port chip select |
| Контакт 40 | VDD — Positive supply (3.0-6.0 V) |
| Контакт 41 | VSS — Ground reference |
| Контакт 42 | NC — Not connected (per datasheet, pin reserved) |
| Контакт 43 | NC — Not connected (per datasheet, pin reserved) |
| Контакт 44 | NC — Not connected (per datasheet, pin reserved) |
Типичное применение
PIC16LC662T-04/PT подходит для 6 применениеs: Industrial Automation Controllers, Consumer Electronics Front Panels, Automotive Body and Comfort Modules, Low-End Sensor Signal Conditioning, White-Goods and Appliance Control, Human-Machine Interface (HMI) Sub-Controllers.
Industrial Automation Controllers
The PIC16LC662T-04/PT's 33 programmable digital I/O lines and 7 KB OTP program memory make it a strong fit for industrial automation controllers that drive relays, read contact closures, and sequence conveyor or motor-control logic. The 4 MHz clock delivers 5 MIPS of deterministic throughput, which is more than enough for PLC-style scan loops running under 10 ms. Designers typically pair the LC662 with opto-isolated inputs and triac/SSR outputs, using the 176-byte RAM to hold scan state and fault flags. The OTP memory is acceptable because industrial controller firmware rarely changes after deployment. Wide 3.0-6.0 V supply tolerance allows direct connection to 5 V or 24 V-derived rails after regulation.
Рекомендуется
Consumer Electronics Front Panels
Consumer front-panel controllers typically need 16-32 I/O for key-scanning, LED driving, and LCD segment control - exactly the resource envelope of the PIC16LC662T-04/PT. The 35-instruction RISC core and 200 ns instruction cycle produce deterministic button-debounce and LED-multiplex timing without an RTOS. The wide 3.0-6.0 V supply range lets designers share the 5 V standby rail with the rest of the appliance. With OTP program memory, finished-goods cost is minimized and firmware cloning is deterred - both desirable in high-volume consumer products. Recommended companion parts include external EEPROM for user preferences and a low-cost LCD driver for character displays.
Рекомендуется
Automotive Body and Comfort Modules
Body controllers for window lifts, mirror adjust, seat-position memory, and interior lighting typically run at 5 V and require 20-40 I/O lines for switch scanning and actuator drive - a natural fit for the PIC16LC662T-04/PT's 33 I/O and 5 V operation. The OTP memory prevents unauthorized firmware modification in dealer-service channels. Automotive body controllers typically multiplex actuators with on-board MOSFET drivers and use the LC662's 176-byte RAM to hold current positions. Note that this part is not AEC-Q100 qualified; for new designs targeting -40 C to +125 C automotive temperature ranges, use PIC16F-series automotive (Q) variants in the same TQFP-44 footprint.
Рекомендуется
Low-End Sensor Signal Conditioning
Distributed sensor nodes that digitize analog signals and transmit them via UART, SPI, or LIN often need only a few analog inputs and modest program memory - the PIC16LC662T-04/PT can play that role at 5 V. The 4 MHz clock can comfortably service a 4800-9600 baud UART, a 100 kHz SPI master, or a LIN slave bus. The 33 I/O allow connection of several sensor channels plus a serial link. Designers typically route the analog front-end through a comparator or an external ADC, since the LC662 itself has no internal ADC ([DATA_NEEDED: confirm ADC presence]). The OTP memory protects calibration coefficients from being overwritten in the field.
Рекомендуется
White-Goods and Appliance Control
Washing machines, dishwashers, microwave ovens, and small kitchen appliances use the PIC16LC662T-04/PT family for the user-interface and timing controller. The 33 I/O handle the keypad, display, door switch, and several triac-driven loads (pump, valve, heater). The 200 ns instruction cycle is plenty for the slow sequencing loops typical of appliances, and the wide 3.0-6.0 V supply allows operation directly from a 5 V rectified mains rail. The 7 KB OTP holds both the appliance cycle code and the safety-timeout logic, while the 176-byte RAM covers current cycle state and error flags.
Рекомендуется
Human-Machine Interface (HMI) Sub-Controllers
The PIC16LC662T-04/PT is well suited as a sub-controller in larger HMIs that handle keypad scanning, LCD refresh, and buzzer/LED feedback while a host processor manages the main application. Its 33 I/O are sufficient for 4x4 keypads plus a parallel character LCD interface, and the 4 MHz instruction cycle can refresh a 16x2 LCD without flicker. The OTP memory locks down the UI firmware to prevent accidental reprogramming during field service. The 176-byte RAM holds key debounce state, LCD cursor position, and a small menu stack. Recommended companion parts include a character-LCD module and an I2C GPIO expander when more I/O is needed.
Рекомендуется
Сводка рекомендуемых товаров
Справочные инженерные данные для PIC16LC662T-04/PT — сравнение, рекомендации по проектированию и информация о соответствии.
Руководство по выбору
Сравнение с аналогами
| Параметр | Этот товар | PIC16LC662-04I/PT | PIC16LC662-04/L | PIC16LC66-04I/SP | PIC16LC66-04I/SO | PIC16F946-I/PT |
|---|---|---|---|---|---|---|
| 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 | 44-pin TQFP (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP | 7 KB OTP | 14 KB Flash |
| Max Clock Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz |
| Number of I/O | 33 | 33 | 33 | 33 | 33 | 53 |
| RAM Size | 176 x 8 | 176 x 8 | 176 x 8 | 176 x 8 | 176 x 8 | 336 x 8 |
| Memory Type | OTP (One-Time Programmable) | OTP | OTP | OTP | OTP | Flash (re-programmable) |
| Supply Voltage | 3.0 V to 6.0 V | 3.0 V to 6.0 V | 3.0 V to 6.0 V | 3.0 V to 6.0 V | 3.0 V to 6.0 V | 2.0 V to 5.5 V |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete | Active |
Ключевые отличия
- Flash-based modern equivalent with active lifecycle (против PIC16LC662T-04/PT (this product))
- Same Microchip silicon at slightly relaxed grade (против PIC16LC662-04I/PT)
- Sister PIC16C66 family with same instruction set (против PIC16LC66-04I/SP)
Заметки по проектированию
Place a 0.1 uF decoupling ceramic capacitor on every VDD/VDDC pin pair (pins 19 and 40 on this TQFP-44), with the cap leads kept under 3 mm to minimize lead inductance. For 5 V designs drawing up to 25 mA, add a bulk 10 uF tantalum or aluminum-polymer capacitor on the main 5 V rail within 1 cm of the MCU. VSS pins (7, 18, 41) must all be tied to a low-impedance ground plane to reduce EMI and provide a stable reference for the analog pins.
Route the external clock or crystal (pins 8 and 9) within 1 cm of the MCU and keep the traces short, matched, and surrounded by a ground guard ring. Avoid routing digital I/O traces under the OSC pins to prevent clock corruption from capacitive coupling. Place the MCLR/VPP pull-up resistor (typically 10 kohm) close to pin 28, and provide a clean test-point access for in-circuit programming if the OTP part will be programmed after PCB assembly.
Do not exceed the maximum VDD of 6.0 V on the LC662 - the 'LC' low-voltage process has lower absolute-maximum ratings than the standard 'C' PIC16C662 part. Configure unused I/O as outputs (not inputs) to prevent floating-pin shoot-through current that can add 1-2 mA per pin. The OTP memory cannot be re-programmed: verify the entire firmware image before programming to avoid scrapping an entire reel. Finally, ensure the high-voltage VPP signal on pin 28 is fully discharged before applying VDD, or the part may latch up.
Информация о соответствии
Compliance data not explicitly published in the verified web data. Most Microchip PIC16LC662 parts from the late 1990s were supplied in matte-tin finish with lead-free reflow compatibility, but RoHS compliance must be confirmed with the manufacturer before use in restricted-substance products.