PIC16C662T-10I/PQ - 8-Bit OTP MCU, 7KB, 10MHz | Microchip
MPN: PIC16C662T-10I/PQ ✗ Cuối đờiPIC16C662T-10I/PQ Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory (ROM/EPROM/Flash/OTP), data memory (RAM), and programmable I/O peripherals into one device. 8-bit MCUs sit at the entry point of the embedded hierarchy: microcontroller -> embedded controller -> system-on-chip -> semiconductor. The PIC16C family in particular uses a 14-bit instruction word (rather than 12-bit on PIC16F baseline or 16-bit on PIC18), which makes it well-suited for compact code density in cost-sensitive designs.
Key differentiating features of the PIC16C662T-10I/PQ include its 7KB OTP program memory, integrated analog peripherals for mixed-signal embedded designs, industrial-grade -40C to +85C operating range, and 33 programmable digital I/O lines. The 'T' suffix denotes tape-and-reel packaging for high-volume assembly, while 'I' specifies industrial temperature grade and 'PQ' indicates the 44-pin MQFP package. The '10' speed grade designates the 10 MHz maximum clock frequency.
Architecturally, the device uses a Harvard structure with separate program and data buses, a 14-bit wide instruction word, and a small register-based file architecture that lets most instructions execute in one instruction cycle (four clock periods). This gives roughly 5 MIPS sustained throughput at 10 MHz - modest by modern standards but sufficient for the appliance, automotive aftermarket, and industrial control applications where the PIC16C662 is typically deployed. OTP (one-time-programmable) memory allows factory or pre-production programming, making the device cost-effective for mature, finalized designs.
Typical applications include appliance control boards, motor control front-ends, security panel logic, simple human-machine interface controllers, and industrial sensor signal conditioning. The wide industrial temperature range makes it suitable for outdoor or factory-floor equipment, while the analog peripheral integration removes the need for an external ADC in many designs. Program development uses MPLAB and the PIC16C instruction-set tools, which remain compatible with current MPLAB X IDE.
When designing with the PIC16C662T-10I/PQ, note that OTP memory cannot be erased or rewritten - this part is intended for finalized firmware and high-volume production. Engineers should also verify the available in-circuit debugger/signature unit support, since the PIC16C family uses a parallel programming interface rather than the modern ICSP used by PIC16F/PIC18 devices. Always check the latest Microchip product page for current lifecycle status, as some PIC16C variants have been transitioned to last-time-buy or NRND.
This page synthesizes distributor stock and pricing data, drop-in PIC16C-family alternatives with the same 44-pin MQFP footprint, and practical design notes - information not consolidated on the manufacturer datasheet or on distributor product pages.
Bộ thay thế dễ dàng lắp đặt cho PIC16C662T-10I/PQ — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC16C662T-10I/PQ (cùng hình factor và footprint) — khác nhau ở Package, Program Memory Type, Operating Temperature, RoHS Status, Mounting Type.
PIC16C662T-10E/PQ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C662T-04E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C662-20I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C662-20E/PT
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C662-20E/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C662-20/PQ
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C662-10E/L
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C662-10/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C662T-10I/PQ Tỷ lệ tối đa & tính chất điện
| Family | PIC16C |
| Core | 8-bit PIC RISC |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 7 KB (4K x 14) |
| Tần số xung maksimum | 10 MHz |
| Instruction Set Width | 14-bit |
| Supply Voltage (Vcc/Vdd) | 4 V to 6 V |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| I/O Pins | 33 |
| Hộp | 44-MQFP (PQ) 10x10 mm |
| Kiểu lắp đặt | Surface Mount |
| Speed Grade | 10 MHz |
| Temperature Grade | Industrial (-40C to +85C) |
| Trạng thái RoHS | Compliant (lead-free per distributor listing) |
| Programming Interface | Parallel (PIC16C family) |
Cấu hình chân PIC16C662T-10I/PQ
| Chân 1 | MCLR — Master Clear (reset) input, active low |
| Chân 2 | RA0 — PORTA I/O bit 0 / analog input |
| Chân 3 | RA1 — PORTA I/O bit 1 / analog input |
| Chân 4 | RA2 — PORTA I/O bit 2 / analog input |
| Chân 5 | RA3 — PORTA I/O bit 3 / analog input |
| Chân 6 | RA4 — PORTA I/O bit 4 / T0CKI |
| Chân 7 | RA5 — PORTA I/O bit 5 / analog input |
| Chân 8 | RE0 — PORTE I/O bit 0 / RD control |
| Chân 9 | RE1 — PORTE I/O bit 1 / WR control |
| Chân 10 | RE2 — PORTE I/O bit 2 / CS control |
| Chân 11 | Vdd — Positive supply voltage (4-6 V) |
| Chân 12 | Vss — Ground reference |
| Chân 13 | OSC1 — Oscillator input / external clock input |
| Chân 14 | OSC2 — Oscillator output |
| Chân 15 | RC0 — PORTC I/O bit 0 |
| Chân 16 | RC1 — PORTC I/O bit 1 |
| Chân 17 | RC2 — PORTC I/O bit 2 |
| Chân 18 | RC3 — PORTC I/O bit 3 |
| Chân 19 | RD0 — PORTD I/O bit 0 |
| Chân 20 | RD1 — PORTD I/O bit 1 |
| Chân 21 | RD2 — PORTD I/O bit 2 |
| Chân 22 | RD3 — PORTD I/O bit 3 |
| Chân 23 | RC4 — PORTC I/O bit 4 |
| Chân 24 | RC5 — PORTC I/O bit 5 |
| Chân 25 | RC6 — PORTC I/O bit 6 |
| Chân 26 | RC7 — PORTC I/O bit 7 |
| Chân 27 | RD4 — PORTD I/O bit 4 |
| Chân 28 | RD5 — PORTD I/O bit 5 |
| Chân 29 | RD6 — PORTD I/O bit 6 |
| Chân 30 | RD7 — PORTD I/O bit 7 |
| Chân 31 | Vss — Ground reference |
| Chân 32 | Vdd — Positive supply voltage (4-6 V) |
| Chân 33 | RB0 — PORTB I/O bit 0 / external interrupt |
| Chân 34 | RB1 — PORTB I/O bit 1 |
| Chân 35 | RB2 — PORTB I/O bit 2 |
| Chân 36 | RB3 — PORTB I/O bit 3 |
| Chân 37 | RB4 — PORTB I/O bit 4 |
| Chân 38 | RB5 — PORTB I/O bit 5 |
| Chân 39 | RB6 — PORTB I/O bit 6 / programming clock |
| Chân 40 | RB7 — PORTB I/O bit 7 / programming data |
| Chân 41 | NC — Not connected (per datasheet) |
| Chân 42 | NC — Not connected (per datasheet) |
| Chân 43 | NC — Not connected (per datasheet) |
| Chân 44 | NC — Not connected (per datasheet) |
Ứng dụng tiêu biểu
PIC16C662T-10I/PQ phù hợp cho 6 Áp dụngs: Appliance Control Board, Industrial Sensor Signal Conditioning, Security and Alarm Panel Logic, HVAC and Thermostat Controller, Automotive Aftermarket Accessory, Simple Human-Machine Interface Controller.
Appliance Control Board
The PIC16C662T-10I/PQ is well suited to washing machine, dishwasher, and microwave oven control boards where its 33 I/O lines can address keypad scan matrices, seven-segment or character LCDs, relay drivers, and triac interfaces. At 10 MHz the core delivers roughly 2.5 MIPS, which is ample for state-machine timing of motor run profiles, sensor debounce, and PWM-based heating element control. The 4-6 V supply range matches standard rectified-and-regulated transformer rails inside appliances, and the industrial -40C to +85C window covers kitchen and laundry environments.
Được đề xuất
Industrial Sensor Signal Conditioning
On factory-floor sensor front-ends, the PIC16C662T-10I/PQ's integrated analog peripherals handle thermocouple and RTD linearization, 4-20 mA loop readback, and bridge-sensor excitation switching. The Harvard architecture and single-cycle 14-bit instruction word give deterministic response times for alarm thresholds, which is critical in process control loops. Industrial -40C to +85C operation tolerates unheated cabinet mounting, and the 44-pin MQFP package provides enough I/O to multiplex several analog channels without an external ADC mux.
Được đề xuất
Security and Alarm Panel Logic
In intrusion alarm panels and access controllers, the PIC16C662T-10I/PQ supervises zone loops, keypad or prox-card readers, siren drivers, and dialer or IP-module handshaking. Its 7 KB of OTP program memory holds comprehensive zone-state machines and communication protocol stacks for legacy panels. The 4-6 V supply aligns with rechargeable-battery-backed 6 V SLA systems common in this segment, and the 33 I/O lines accommodate the typical 8 to 16 zones plus expansion headers used in mid-tier alarm panels.
Được đề xuất
HVAC and Thermostat Controller
The PIC16C662T-10I/PQ drives HVAC thermostat and zone-controller boards by reading temperature/humidity sensors, scheduling compressor and fan relays, and running PID control loops for setpoint tracking. Its 10 MHz throughput is sufficient for multi-zone PID calculations at one-second update rates, and the 33 I/O lines handle multi-stage heat/cool switching without external I/O expanders. The industrial temperature rating supports equipment-room installations, while OTP memory locks the calibration data at production time.
Được đề xuất
Automotive Aftermarket Accessory
Although not AEC-Q100 qualified, the PIC16C662T-10I/PQ is widely used in non-safety automotive aftermarket accessories such as remote-start interfaces, alarm system upgrades, lighting controllers, and gauge cluster retrofits. Its 4-6 V supply handles 12 V vehicle rails via a standard 5 V regulator, and the industrial -40C to +85C window covers in-cabin and under-hood-adjacent accessory environments. The 33 I/O lines and 7 KB OTP memory support feature-rich accessory firmware including CAN/LIN or UART peripheral interfacing.
Được đề xuất
Simple Human-Machine Interface Controller
The PIC16C662T-10I/PQ is used in small HMI panels such as elevator floor indicators, vending machine front panels, and exercise equipment displays. Its 33 I/O lines drive button-scan matrices and character LCDs, while the OTP memory locks the user-interface flow at production. The 10 MHz speed is sufficient for screen refresh, button debounce, and serial backhaul to a host controller, and the 44-pin MQFP package is small enough for the compact front-panel PCBs typical of these designs.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C662T-10I/PQ — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC16C662T-10E/PQ | PIC16C662-20I/P | PIC16C662-20/PQ | PIC16C662T-04E/PT |
|---|---|---|---|---|---|
| Package | 44-MQFP (PQ) 10x10 mm | 44-MQFP (PQ) 10x10 mm - same | 44-MQFP (PQ) 10x10 mm - same | 44-MQFP (PQ) 10x10 mm - same | 44-MQFP (PQ) 10x10 mm - same |
| Brand | 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 |
| Maximum Clock Frequency | 10 MHz | 10 MHz | 20 MHz (+100%) | 20 MHz (+100%) | 4 MHz (-60%) |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | 0C to +70C (Commercial) | -40C to +125C (Extended) |
| Supply Voltage | 4 V to 6 V | 4 V to 6 V | 4 V to 6 V | 4 V to 6 V | 4 V to 6 V |
| I/O Pins | 33 | 33 | 33 | 33 | 33 |
| Instruction Set Width | 14-bit | 14-bit | 14-bit | 14-bit | 14-bit |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND |
Bảo phân biệt quan trọng
- Industrial temperature grade in 44-pin MQFP (vsPIC16C662T-04E/PT)
- Lower minimum order cost at 10 MHz performance (vsPIC16C662-20I/P)
- Industrial temp grade rather than extended temp (vsPIC16C662T-10E/PQ)
Ghi chú thiết kế
The PIC16C662T-10I/PQ operates from a 4.0 V to 6.0 V supply. Place a 100 nF ceramic decoupling capacitor as close as possible to the Vdd pin (pin 11) plus a 10 uF bulk capacitor on the same rail, with a second 100 nF capacitor close to the Vdd pin (pin 32) since the 44-pin MQFP has two Vdd/Vss pairs. Estimated: a single 5 V linear regulator (e.g. LM7805 or equivalent) feeding both pins through star-ground topology is the standard supply pattern for PIC16C designs.
Route the MCLR pin (pin 1) directly to a pull-up resistor and reset circuit; long traces here pick up noise and cause spurious resets. Keep the OSC1/OSC2 traces (pins 13 and 14) short and surrounded by ground pour to minimize EMI coupling into the analog peripherals. The programming pins (RB6/RB7 - pins 39 and 40) should be accessible for factory programming; do not place series resistors or buffers in these paths, or the parallel programmer will fail to communicate.
Because the PIC16C662T-10I/PQ uses OTP (one-time-programmable) memory, you cannot fix firmware bugs in the field. Always validate the firmware on a windowed or flash-equivalent PIC16F part before committing to OTP programming. Also note that the part is NRND (Not Recommended for New Designs) - new product designs should migrate to a PIC16F or PIC18F flash MCU in the same 44-pin MQFP footprint. The programming interface is parallel (not ICSP), so factory programming requires a dedicated gang programmer rather than an in-circuit debugger.
The 44-pin MQFP package has lead-pitch spacing that supports clean signal routing, but the analog inputs share pins with digital I/O. When using analog channels, place a small RC filter (typically 100 ohm plus 100 nF) at each analog input to prevent digital switching noise from coupling into ADC conversions. Estimated: aim for analog ground isolation with a separate analog ground island that joins the main ground only at the Vss pins (12 and 31) to avoid ground-loop noise.
Thông tin tuân thủ
RoHS compliant and lead-free per distributor listings (Besenchips, Veswin). Not AEC-Q100 qualified - automotive designs must use AEC-Q100 qualified PIC16F or PIC18F equivalents. REACH and conflict-minerals status not stated in the verified distributor data - request Microchip compliance letter if required.
