PIC16C77T-10I/L - 8-Bit 10MHz MCU, 14KB OTP, 44-PLCC | Microchip
MPN: PIC16C77T-10I/L ✗ انتهى عمره الإنتاجيPIC16C77T-10I/L نظرة عامة
An 8-bit microcontroller (MCU) is a small single-chip computer built around an 8-bit data bus, typically using Harvard architecture with separate program and data memory spaces. Within the broader taxonomy, this part belongs to: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor IC. The PIC16C family uses Microchip's enhanced mid-range RISC core, optimized for deterministic interrupt response and compact code density, making PIC MCUs the dominant choice for cost-sensitive, low-power embedded control applications such as motor control, sensor interfacing, and user-interface handling.
Key features of the PIC16C77T-10I/L include 14KB of OTP program memory allowing custom firmware to be written exactly once during manufacturing, 368 bytes of data RAM for scratchpad operations, and a hardware USART for asynchronous serial communication. The integrated ADC provides up to eight analog input channels at 8-bit resolution, ideal for sensor reading and battery monitoring. An industrial temperature grade (-40C to +85C) supports deployment in harsh environments, and the 44-pin PLCC package allows easy prototyping on through-hole carriers while still being surface-mountable for production. Synchronous Serial Port (SSP) and I2C support allow the part to communicate with external EEPROMs, real-time clocks, and sensor ICs.
Architecturally, the PIC16C77T-10I/L uses a 14-bit instruction word with a two-stage pipeline, providing deterministic one-instruction-per-cycle execution except for program branches. The brown-out reset, power-on reset, and watchdog timer with its own on-chip RC oscillator enhance field reliability in unattended installations. The 33 I/O pins can source/sink up to 25 mA each, enabling direct LED drive and small relay coil activation without external drivers. Interrupt-on-change inputs simplify user-interface keypads and rotary-encoder reading.
Typical applications include industrial process controllers, HVAC fan and damper actuators, automotive body modules, white-goods user interfaces, and small-form-factor sensor hubs. Its ADC and PWM peripherals also make it a fit for battery chargers and uninterruptible power supply (UPS) control boards.
When designing with this device, engineers should allocate one I/O pin for the MCLR reset, allow a 100 ms decoupling window for power-on reset, and follow Microchip's recommended in-circuit serial programming (ICSP) header pinout to retain firmware-upgrade capability on the production board.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found on individual datasheet pages.
بدائل مباشرة لـ PIC16C77T-10I/L — 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 PIC16C77T-10I/L (نفس عامل الشكل والبصمة) — يختلف في Package, ADC, Program Memory Size, Timers, Mounting Type.
PIC16C77-10I/L
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC16C77T-10/L
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16C77T-10I/PT
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC16C77-20I/L
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16F877-10I/L
✅ بديل مباشر📋 بديل مرجعي (غير موجود في الكتالوج)
PIC16F877A-I/L
✅ بديل مباشرتواصل لمعرفة السعر
عرض ورقة البيانات ←PIC16C77T-10I/L الحدود القصوى والخصائص الكهربائية
| Core Architecture | 8-bit PIC16C mid-range RISC |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 14 KB (8K x 14 words) |
| RAM Size | 368 bytes |
| Maximum CPU Frequency | 10 MHz |
| Instruction Cycle Time | 200 ns |
| I/O Pins | 33 |
| ADC | 8-bit, 8 channels |
| Timers | 3 (Timer0, Timer1, Timer2) |
| CCP Modules | 2 (Capture/Compare/PWM) |
| Communication | USART (SCI), SSP (SPI/I2C) |
| Temperature Grade | Industrial (-40C to +85C) |
| العلبة | 44-pin PLCC (16.59 x 16.59 mm), J-Lead |
| Package Code | QCCJ (J-Lead, square) |
| نوع التركيب | Surface Mount (PLCC socket compatible) |
تكوين أطراف PIC16C77T-10I/L
| دبوس 1 | MCLR/VPP — Master Clear (Reset) input or programming voltage input |
| دبوس 2 | RA0/AN0 — PORTA bit 0 / Analog input channel 0 |
| دبوس 3 | RA1/AN1 — PORTA bit 1 / Analog input channel 1 |
| دبوس 4 | RA2/AN2 — PORTA bit 2 / Analog input channel 2 |
| دبوس 5 | RA3/AN3/VREF — PORTA bit 3 / Analog input 3 / ADC reference |
| دبوس 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input (open-drain) |
| دبوس 7 | RA5/AN4/SS — PORTA bit 5 / Analog input 4 / SPI slave select |
| دبوس 8 | RE0/RD/AN5 — PORTE bit 0 / Parallel Slave Port read / AN5 |
| دبوس 9 | RE1/WR/AN6 — PORTE bit 1 / PSP write / AN6 |
| دبوس 10 | RE2/CS/AN7 — PORTE bit 2 / PSP chip select / AN7 |
| دبوس 11 | VDD — Positive power supply |
| دبوس 12 | VSS — Ground reference |
| دبوس 13 | OSC1/CLKI — Crystal oscillator input / external clock input |
| دبوس 14 | OSC2/CLKO — Crystal oscillator output / clock output |
| دبوس 15 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock |
| دبوس 16 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 I/O |
| دبوس 17 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM output |
| دبوس 18 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| دبوس 19 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| دبوس 20 | RC5/SDO — PORTC bit 5 / SPI data out |
| دبوس 21 | RC6/TX/CK — PORTC bit 6 / USART TX / USART clock |
| دبوس 22 | RC7/RX/DT — PORTC bit 7 / USART RX / USART data |
| دبوس 23 | RB0/INT — PORTB bit 0 / External interrupt |
| دبوس 24 | RB1 — PORTB bit 1 |
| دبوس 25 | RB2 — PORTB bit 2 |
| دبوس 26 | RB3/PGM — PORTB bit 3 / Low-voltage ICSP programming |
| دبوس 27 | RB4 — PORTB bit 4 (interrupt-on-change) |
| دبوس 28 | RB5 — PORTB bit 5 (interrupt-on-change) |
| دبوس 29 | RB6/PGC — PORTB bit 6 / ICSP clock (interrupt-on-change) |
| دبوس 30 | RB7/PGD — PORTB bit 7 / ICSP data (interrupt-on-change) |
| دبوس 31 | VSS — Ground reference |
| دبوس 32 | VDD — Positive power supply |
| دبوس 33 | RD0/PSP0 — PORTD bit 0 / Parallel Slave Port data |
| دبوس 34 | RD1/PSP1 — PORTD bit 1 / PSP data |
| دبوس 35 | RD2/PSP2 — PORTD bit 2 / PSP data |
| دبوس 36 | RD3/PSP3 — PORTD bit 3 / PSP data |
| دبوس 37 | RD4/PSP4 — PORTD bit 4 / PSP data |
| دبوس 38 | RD5/PSP5 — PORTD bit 5 / PSP data |
| دبوس 39 | RD6/PSP6 — PORTD bit 6 / PSP data |
| دبوس 40 | RD7/PSP7 — PORTD bit 7 / PSP data |
| دبوس 41 | NC — Not connected (per datasheet) |
| دبوس 42 | NC — Not connected (per datasheet) |
| دبوس 43 | NC — Not connected (per datasheet) |
| دبوس 44 | NC — Not connected (per datasheet) |
التطبيقات النموذجية
PIC16C77T-10I/L مناسب لـ 6 التطبيقs: Industrial Process Controller, HVAC Fan and Damper Controller, White-Goods User Interface Board, Automotive Body Module, Sensor Hub / Data Logger, Battery Charger Controller.
Industrial Process Controller
The PIC16C77T-10I/L is well-suited to industrial process controller boards thanks to its 8-channel 8-bit ADC for reading temperature, pressure, and flow sensors, dual CCP modules for PWM valve and actuator drive, and 25 mA per-pin I/O capable of directly switching small relays and optocouplers. Industrial-grade -40C to +85C operation permits deployment in factory cabinets, while USART and SSP peripherals support Modbus RTU over RS-485 or I2C sensor networks. The 14KB OTP program memory holds typical ladder-logic-style state machines plus a small HMI driver.
موصى به
HVAC Fan and Damper Controller
In HVAC damper and blower controllers, the PIC16C77T-10I/L drives triac-gated AC fan motors via its CCP PWM outputs and reads thermistor/duct-pressure signals through its 8-channel ADC. The 33 digital I/O lines accommodate multiple relay outputs for zone dampers and tri-state fan-speed taps, while the integrated USART links the board to a building management system over RS-232 or RS-485. Industrial temperature rating supports unconditioned mechanical-room installation where ambient can exceed 60C.
موصى به
White-Goods User Interface Board
For washing-machine, dishwasher, and oven control panels, the PIC16C77T-10I/L provides enough I/O to scan 4x4 keypads, drive 7-segment or 14-segment LED displays directly via high-current ports, and time motor phases using the dual CCP modules. The 368-byte RAM supports menu state structures, and OTP memory keeps bill-of-materials cost low for high-volume consumer appliances. Industrial temp grade handles the heat of an oven door-closed enclosure.
موصى به
Automotive Body Module
Body controllers for window lifters, mirror adjusters, and seat positioners use the PIC16C77T-10I/L to read Hall-effect position sensors via the ADC, generate PWM for mirror motors, and multiplex switch inputs through interrupt-on-change pins. The 33 I/O count supports multiple motor outputs and switch-matrix scanning on a single MCU. While the OTP memory is acceptable for fixed-function body controllers, automotive designs typically pair it with an external watchdog supervisor for ISO 7637 transient compliance.
موصى به
Sensor Hub / Data Logger
The PIC16C77T-10I/L acts as a low-power sensor hub aggregating analog inputs from thermocouples, load cells, or gas sensors through its 8-channel ADC, timestamping readings with the integrated Timer1 RTC, and streaming data to a host via the USART. The 368-byte RAM plus 14KB OTP code space accommodates a small ring buffer and Modbus or custom serial protocol stack. Industrial temp grade permits outdoor cabinet use in weather stations and agricultural sensor packages.
موصى به
Battery Charger Controller
Sealed lead-acid and lithium battery charger boards use the PIC16C77T-10I/L to implement constant-current / constant-voltage charge profiles, with the ADC measuring battery voltage and charge current, and the CCP PWM controlling a buck or flyback converter gate driver. The 10 MHz clock supports the PID loop rates needed for tight charge-current regulation, while 33 I/O allow multi-stage relay-based load sharing. OTP memory locks the firmware to the specific battery chemistry, preventing field mis-configuration.
موصى به
ملخص المنتجات الموصى بها
بيانات مرجعية هندسية لـ PIC16C77T-10I/L — المقارنة وإرشادات التصميم ومعلومات الامتثال.
دليل الاختيار
المقارنة مع البدائل
| المعامل | هذا المنتج | PIC16C77-10I/L | PIC16C77T-10/L | PIC16C77-20I/L | PIC16F877-10I/L | PIC16F877A-I/L |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-PLCC (16.59x16.59 mm) | 44-PLCC - same | 44-PLCC - same | 44-PLCC - same | 44-PLCC - same | 44-PLCC - same |
| Program Memory | 14 KB OTP | 14 KB OTP | 14 KB OTP | 14 KB OTP | 14 KB Flash | 14 KB Flash |
| RAM | 368 bytes | 368 bytes | 368 bytes | 368 bytes | 368 bytes | 368 bytes |
| Max Clock Frequency | 10 MHz | 10 MHz | 10 MHz | 20 MHz | 10 MHz | 20 MHz |
| I/O Pins | 33 | 33 | 33 | 33 | 33 | 33 |
| Temperature Grade | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Commercial (0C to +70C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) | Industrial (-40C to +85C) |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | Active |
| Memory Type | OTP (one-time programmable) | OTP | OTP | OTP | Flash (reprogrammable) | Flash (reprogrammable) |
أبرز الفروقات
- Identical silicon with packaging variant alternative (مقابلPIC16C77-10I/L)
- Pin-compatible Flash migration path (مقابلPIC16F877A-I/L)
- Higher-speed variant available in same package (مقابلPIC16C77-20I/L)
ملاحظات التصميم
Place a 100 nF decoupling capacitor as close as possible to each VDD/VSS pair (pins 11/12 and 31/32). Add a bulk 10 uF tantalum or aluminum electrolytic on the board's main VDD rail. The PIC16C77T-10I/L brown-out reset circuitry requires VDD to rise monotonically; if the supply has slow ramp or significant ripple, add an external voltage supervisor such as MCP100 to drive MCLR for reliable cold-start behavior.
Keep the 10 MHz crystal or resonator within 5 mm of pins 13 (OSC1) and 14 (OSC2), with the load capacitors grounded directly to the VSS pin closest to the oscillator. Route the MCLR/VPP trace (pin 1) directly to its own bypass capacitor and the ICSP header; avoid running noisy switching traces near MCLR or the oscillator loop to prevent false resets or erratic clock behavior.
Do not assume the 33 I/O pins are 5 V tolerant when the device is running at 3.3 V; they are TTL-level inputs with Schmitt triggers and accept 5 V only when VDD is also 5 V. Never drive the MCLR pin with a slow RC rise time - this can trigger unreliable brown-out behavior. Always reserve an ICSP header footprint (5 pins: VPP/PGD/PGC/VSS/VDD) on production boards to allow field firmware recovery, even though the OTP memory normally prevents in-field reprogramming.
معلومات الامتثال
RoHS, REACH, lead-free, and halogen-free status were not present in the verified distributor data; marked as unknown. The part is not AEC-Q100 qualified - it is an industrial-grade MCU, not automotive-grade.
