PIC16C662-04E/P - 4MHz 8-bit OTP MCU, 7KB | Microchip
MPN: PIC16C662-04E/P ✓ نشطPIC16C662-04E/P نظرة عامة
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program and data memory, peripherals, and I/O onto one die, enabling compact embedded control in appliances, automotive modules, and industrial subsystems. The PIC16C662 belongs to the mid-range PIC architecture, sitting hierarchically between 8-bit microcontrollers and the broader semiconductor / embedded-processing category.
Key differentiating features include a 14-bit instruction word, only 35 single-word instructions (most executing in 200 ns), integrated Brown-out Detect/Reset, Power-On Reset (POR), Watchdog Timer (WDT), and LED drive capability on selected ports. The RISC Harvard bus architecture and 8-bit data path deliver deterministic interrupt response for real-time control.
Operating from 4.0 V to 6.0 V (4.5 V to 5.5 V typical), the device supports up to 4 MIPS throughput. The OTP program memory makes each unit field-programmable once, ideal for low-to-medium volume production where mask-ROM volume economics are unattractive. Peripherals include an 8-bit timer/counter, capture/compare/PWM, and a synchronous serial port (SSP).
Typical applications include industrial automation controllers, automotive body and climate modules (extended temp grade), appliance control boards, and consumer-electronics interfaces. The 33 I/O pins comfortably drive keypads, LED arrays, and small relays.
Designers should note that the OTP memory cannot be erased, so firmware must be fully validated on a windowed or Flash equivalent before final programming. Decoupling capacitors (0.1 uF) must be placed within 5 mm of VDD/VSS pins, and unused I/O should be configured as outputs to minimize current draw.
This page synthesizes distributor pricing, same-brand drop-in alternatives from the PIC16C6x family, and practical design notes not found in the manufacturer datasheet.
بدائل مباشرة لـ PIC16C662-04E/P — نفس الحزمة، متوافق دبوس بدبوس. تُستثنى القطع ذات الحزم المختلفة التي تتطلب تعديل PCB.
الطرازات في هذه السلسلة
طرازات من نفس السلسلة متوافقة تمامًا مع PIC16C662-04E/P (نفس عامل الشكل والبصمة) — يختلف في Package, Program Memory, Instruction Set, Core Architecture, Data RAM.
PIC16C662-04I/P
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منهاتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16F662-I/P
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC16F74-I/P
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16C662-10E/P
✅ بديل مباشر ⚠️ مواصفات غير مُتحقق منها📋 بديل مرجعي (غير موجود في الكتالوج)
PIC16F884-E/P
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16C662-04E/P الحدود القصوى والخصائص الكهربائية
| Core Architecture | PIC 8-bit RISC (Mid-Range) |
| Instruction Word | 14-bit |
| أقصى تردد للساعة | 4 MHz |
| Program Memory | 7 KB (4K x 14) OTP |
| Number of I/O Pins | 33 |
| Supply Voltage Range | 4.0 V to 6.0 V (4.5 V to 5.5 V typical) |
| Instruction Count | 35 |
| Instruction Cycle Time | 200 ns (single-cycle), 400 ns (branch) |
| Peripherals | Brown-out Reset, POR, WDT, LED driver, Timer, CCP, SSP |
| العلبة | 40-pin PDIP (0.600" / 15.24 mm through-hole) |
| نوع التركيب | Through-Hole |
| نطاق درجة حرارة التشغيل | -40 C to +125 C (extended grade "E") |
| Temperature Grade | Automotive / Extended |
| ROM Type | OTP (One-Time-Programmable) |
تكوين أطراف PIC16C662-04E/P
| دبوس 1 | MCLR/VPP — Master Clear (reset) input / programming voltage |
| دبوس 2 | RA0/AN0 — Port A bit 0 / analog input 0 |
| دبوس 3 | RA1/AN1 — Port A bit 1 / analog input 1 |
| دبوس 4 | RA2/AN2 — Port A bit 2 / analog input 2 |
| دبوس 5 | RA3/AN3/VREF+ — Port A bit 3 / analog input 3 / voltage reference |
| دبوس 6 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| دبوس 7 | RA5/AN4/SS — Port A bit 5 / analog input 4 / SSP slave select |
| دبوس 8 | OSC1/CLKIN — Oscillator crystal input / external clock in |
| دبوس 9 | OSC2/CLKOUT — Oscillator crystal output / clock out |
| دبوس 10 | RC0/T1OSO/T1CKI — Port C bit 0 / Timer1 oscillator out / clock in |
| دبوس 11 | RC1/T1OSI/CCP2 — Port C bit 1 / Timer1 oscillator in / CCP2 |
| دبوس 12 | RC2/CCP1 — Port C bit 2 / Capture Compare PWM 1 |
| دبوس 13 | RC3/SCK/SCL — Port C bit 3 / SPI clock / I2C clock |
| دبوس 14 | RC4/SDI/SDA — Port C bit 4 / SPI data in / I2C data |
| دبوس 15 | RC5/SDO — Port C bit 5 / SPI data out |
| دبوس 16 | RC6/TX/CK — Port C bit 6 / UART TX / clock |
| دبوس 17 | RC7/RX/DT — Port C bit 7 / UART RX / data |
| دبوس 18 | RD0 — Port D bit 0 |
| دبوس 19 | RD1 — Port D bit 1 |
| دبوس 20 | RD2 — Port D bit 2 |
| دبوس 21 | RD3 — Port D bit 3 |
| دبوس 22 | RD4 — Port D bit 4 |
| دبوس 23 | RD5 — Port D bit 5 |
| دبوس 24 | RD6 — Port D bit 6 |
| دبوس 25 | RD7 — Port D bit 7 |
| دبوس 26 | RE0/RD — Port E bit 0 / read control |
| دبوس 27 | RE1/WR — Port E bit 1 / write control |
| دبوس 28 | RE2/CS — Port E bit 2 / chip select |
| دبوس 29 | VSS — Ground reference |
| دبوس 30 | VDD — Positive supply voltage |
| دبوس 31 | RB0/INT — Port B bit 0 / external interrupt |
| دبوس 32 | RB1 — Port B bit 1 |
| دبوس 33 | RB2 — Port B bit 2 |
| دبوس 34 | RB3 — Port B bit 3 |
| دبوس 35 | RB4 — Port B bit 4 |
| دبوس 36 | RB5 — Port B bit 5 |
| دبوس 37 | RB6/PGC — Port B bit 6 / ICSP clock |
| دبوس 38 | RB7/PGD — Port B bit 7 / ICSP data |
| دبوس 39 | NC — Not connected (per datasheet) |
| دبوس 40 | NC — Not connected (per datasheet) |
التطبيقات النموذجية
PIC16C662-04E/P مناسب لـ 6 التطبيقs: Automotive Body Control Modules, Industrial Automation Controllers, Appliance Control Boards, Consumer Electronics Interface Panels, HVAC and Climate Control, Security and Access Control Panels.
Automotive Body Control Modules
The PIC16C662-04E/P's extended -40 C to +125 C temperature grade and automotive qualification make it well suited to body-electronics ECUs that drive mirrors, locks, and lighting. With 33 digital I/O, the MCU can scan keypads, multiplex LEDs, and read switches directly, while the on-chip WDT and Brown-out Reset handle the noisy 12 V automotive environment. The 200 ns instruction cycle supports debounce and PWM tasks in real time. Place 0.1 uF decoupling close to VDD/VSS and use optocouplers for any 12 V load switching.
موصى به
Industrial Automation Controllers
In industrial PLCs and sensor-interface boards, the PIC16C662-04E/P provides 33 I/O lines that can drive relays, read limit switches, and interface 4-20 mA loops through external conditioning. The OTP memory locks firmware to prevent unauthorized field modification, while the RISC core executes deterministic scan loops within microseconds. Brown-out detection protects against the voltage sags common on long factory wiring runs. Use the CCP and SSP peripherals for PWM valve control and SPI sensor polling respectively.
موصى به
Appliance Control Boards
White-goods control boards (washers, dishwashers, ovens) benefit from the PIC16C662-04E/P's integrated LED drive, 33 I/O, and timer/counter peripherals that handle motor triac drive, user-panel scanning, and temperature sensor polling. The 4 MHz clock keeps EMI low compared to faster MCUs, simplifying CE/UL compliance. The 5 V supply envelope matches common appliance power rails. OTP memory prevents firmware tampering and ensures field units ship with locked behavior.
موصى به
Consumer Electronics Interface Panels
User-interface panels for AV receivers, HVAC thermostats, and home automation gateways use the PIC16C662-04E/P to scan keypads, drive 7-segment or matrix LED displays, and bridge to a host processor via UART or SPI. The PIC's 35-instruction RISC core is easy to program in assembly or C, accelerating time-to-market for cost-sensitive consumer products. The 33 I/O accommodate 4x4 keypads plus dedicated LED sink lines without external drivers.
موصى به
HVAC and Climate Control
The PIC16C662-04E/P's extended temperature grade suits HVAC controllers exposed to attic and outdoor-cabinet conditions. The MCU can multiplex temperature inputs from NTC thermistors, drive triac-based fan speed control via PWM (CCP module), and communicate with indoor units over UART. OTP memory locks calibrated firmware and protects against unauthorized reflash. Brown-out Reset is essential for handling compressor inrush that sags the supply rail.
موصى به
Security and Access Control Panels
Door controllers, alarm panels, and access-control keypads use the PIC16C662-04E/P to scan keypads, drive buzzers and LEDs, and supervise reed-switch zones. The WDT catches firmware lockups, while OTP memory ensures the security logic cannot be reflashed in the field. The 4 MHz clock gives 5 ms instruction loops that comfortably debounce mechanical keypresses without missing events. Use external EEPROM or serial FRAM for event-log persistence.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC16C662-04E/P — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | PIC16C662-04I/P | PIC16F662-I/P | PIC16F74-I/P | PIC16C662-10E/P | PIC16F884-E/P |
|---|---|---|---|---|---|---|
| Package | 40-PDIP | 40-PDIP - same | 40-PDIP - same | 40-PDIP - same | 40-PDIP - same | 40-PDIP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Max Clock Frequency | 4 MHz | 4 MHz | 20 MHz | 20 MHz | 10 MHz | 20 MHz |
| Program Memory | 7 KB OTP | 7 KB OTP | 7 KB Flash | 4 KB Flash | 7 KB OTP | 7 KB Flash |
| Memory Type | OTP | OTP | Flash | Flash | OTP | Flash |
| Temperature Grade | -40 to +125 C (Extended) | -40 to +85 C (Industrial) | -40 to +85 C (Industrial) | -40 to +85 C (Industrial) | -40 to +125 C (Extended) | -40 to +125 C (Extended) |
| Number of I/O Pins | 33 | 33 | 33 | 33 | 33 | 36 |
| Supply Voltage | 4.0 to 6.0 V | 4.0 to 6.0 V | 2.0 to 5.5 V | 2.0 to 5.5 V | 4.0 to 6.0 V | 2.0 to 5.5 V |
| Brown-out Reset | Yes | Yes | Yes | Yes | Yes | Yes |
| Watchdog Timer | Yes | Yes | Yes | Yes | Yes | Yes |
أبرز الفروقات
- Extended automotive temperature grade in standard SKU (مقابلPIC16C662-04I/P)
- 7 KB OTP program memory with 33 I/O at 4 MHz clock grade (مقابلPIC16F74-I/P)
- Same-brand drop-in availability across OTP and Flash variants (مقابلPIC16F884-E/P)
ملاحظات التصميم
Place a 0.1 uF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 30) and a bulk 10 uF electrolytic near the IC. The PIC16C662-04E/P can source/sink up to 25 mA per pin, but the total port current is limited; avoid tying multiple LEDs to the same VDD rail without current-limiting resistors. Route the MCLR line directly to the reset circuit with a 10 kohm pull-up to VDD.
Estimated: at 4 MHz clock and VDD = 5.0 V, supply current is typically 2-5 mA with all I/O floating. Adding LED loads at 10 mA total and analog peripherals active can push this to ~15 mA. The extended temperature grade means derate supply current at +125 C by ~20 percent. Always enable Brown-out Reset to protect Flash/OTP integrity during voltage sags.
Do not leave unused I/O pins floating - configure them as outputs or enable the internal weak pull-ups to prevent shoot-through and spurious interrupts. The MCLR pin must NOT be left floating; tie through a resistor to VDD. When programming OTP, ensure VPP rises monotonically to 13 V within the datasheet-specified rise time, or the programming cycle will fail silently and leave the part unprogrammed.
معلومات الامتثال
RoHS and REACH status not explicitly stated in provided data. Lead-free assumed for PDIP package family. AEC-Q100 not separately qualified - extended temp grade "/E" suffix is automotive-style but not formal AEC-Q100.
