PIC16C77-10I/PT - 8-bit OTP MCU, 14KB, 33 I/O, 44-TQFP | Microchip
MPN: PIC16C77-10I/PT ✗ اختتامِ زندگیPIC16C77-10I/PT جائزہ
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and a configurable set of peripherals (ADC, timers, communication ports, GPIO) into one package. Within the broader product hierarchy, the PIC16C77 belongs to the 8-bit microcontroller category, which itself sits within the microcontroller family and the larger integrated-circuit class used in embedded systems. The 'OTP' (one-time-programmable) designation means the program memory can be written exactly once via a programmer, after which the code is permanent - this makes OTP MCUs economical for mature, low-cost-volume production.
Key differentiating features include 200 ns instruction execution (5 MIPS at 10 MHz), a RISC architecture with only 35 single-word instructions, an 8-channel 8-bit ADC for mixed-signal sensing, dual PWM outputs for motor or lighting control, and a versatile USART plus configurable SSP. Compared with flash equivalents in the PIC16F family, the OTP memory trades re-programmability for unit-cost reduction in shipping products.
Architecturally the PIC16C77 uses a Harvard bus (separate program and data paths) with a 14-bit-wide instruction word and an 8-bit data path, yielding compact code density. The CMOS static design allows the clock to be slowed or stopped for low-power operation, and the brown-out reset, watchdog timer, and power-on reset blocks harden the device against real-world supply noise.
Typical applications include industrial motor control (using the CCP PWM and USART for inverter feedback), process instrumentation (with the 8-channel ADC scanning sensors), appliance control boards, security and access-control panels, and embedded data-acquisition front-ends. The 44-TQFP package provides ample I/O for human-machine interface or field-bus use.
When designing with the PIC16C77-10I/PT, plan for OTP programming logistics: a windowed (JW) version is required for code development and verification, after which the OTP-PT part is programmed in production. Provide clean 5 V decoupling and route the analog AVdd/AVss pins with separated grounds to preserve ADC accuracy.
This page consolidates distributor stock, drop-in alternatives in the same TQFP-44 footprint, comparison data versus the flash PIC16F77 successor, and practical design notes not found on any single distributor listing.
کے لیے ڈراپ اِن متبادل PIC16C77-10I/PT — یکساں پیکیج، پن سے پن مطابقت پذیر۔ مختلف پیکیج والے پرزے جن کے لیے PCB دوبارہ کام درکار ہو، شامل نہیں ہیں۔
اس سیریز میں مختلف ورژن
اسی سیریز کے ماڈلز جو ڈراپ اِن مطابقت رکھتے ہیں PIC16C77-10I/PT (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Core Architecture, Serial Interfaces, Package, Timers, Instruction Set.
PIC16F77-I/PT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C77-10I/P
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C77-10/PT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C77-04I/PT
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C67-10I/PT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C74BT-04I/PT
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C77-10I/PT زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Program Memory Size | 14 KB (8K x 14) |
| Program Memory Type | OTP (One-Time Programmable) |
| RAM Size | 368 x 8 bytes |
| EEPROM Size | None |
| Number of I/O Pins | 33 |
| CPU Core | PIC16C7X (8-bit Harvard RISC) |
| Instruction Set | 35 single-word instructions |
| زیادہ سے زیادہ کلاک فریکوئنسی | 10 MHz |
| Instruction Execution Time | 200 ns |
| ADC | 8 channels, 8-bit resolution |
| Timers | 2 x 8-bit + 1 x 16-bit |
| CCP/PWM Modules | 2 |
| Serial Interfaces | SSP (SPI / I2C) + USART/SCI |
| پیکیج | 44-pin TQFP (PT) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| آپریٹنگ درجہ حرارت | -40C to +85C (industrial, 'I' suffix) |
| Lead-Free / RoHS | RoHS status depends on lot date code - verify with supplier |
PIC16C77-10I/PT پن کنفیگریشن
| پن 1 | OSC1/CLKIN — Oscillator input or external clock input pin |
| پن 2 | RA0/AN0 — PORTA bit 0 / Analog input channel 0 |
| پن 3 | RA1/AN1 — PORTA bit 1 / Analog input channel 1 |
| پن 4 | RA2/AN2 — PORTA bit 2 / Analog input channel 2 |
| پن 5 | RA3/AN3/VREF — PORTA bit 3 / Analog input channel 3 / ADC VREF+ |
| پن 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| پن 7 | RA5/AN4/SS — PORTA bit 5 / Analog input channel 4 / SSP slave select |
| پن 8 | Vss — Ground reference |
| پن 9 | OSC2/CLKOUT — Oscillator output or clock output (Fosc/4) |
| پن 10 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| پن 11 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 I/O |
| پن 12 | RC2/CCP1 — PORTC bit 2 / CCP1 I/O |
| پن 13 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| پن 14 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| پن 15 | RC5/SDO — PORTC bit 5 / SPI data out |
| پن 16 | RC6/TX/CK — PORTC bit 6 / USART TX / USART clock |
| پن 17 | RC7/RX/DT — PORTC bit 7 / USART RX / USART data |
| پن 18 | Vss — Ground reference |
| پن 19 | Vdd — Positive supply voltage |
| پن 20 | RB0/INT — PORTB bit 0 / External interrupt input |
| پن 21 | RB1 — PORTB bit 1 |
| پن 22 | RB2 — PORTB bit 2 |
| پن 23 | RB3 — PORTB bit 3 |
| پن 24 | RB4 — PORTB bit 4 |
| پن 25 | RB5 — PORTB bit 5 |
| پن 26 | RB6/PGC — PORTB bit 6 / In-circuit debugger clock |
| پن 27 | RB7/PGD — PORTB bit 7 / In-circuit debugger data |
| پن 28 | Vss — Ground reference |
| پن 29 | AVdd — Analog positive supply voltage |
| پن 30 | AVss — Analog ground reference |
| پن 31 | RD0/PSP0 — PORTD bit 0 / Parallel Slave Port bit 0 |
| پن 32 | RD1/PSP1 — PORTD bit 1 / Parallel Slave Port bit 1 |
| پن 33 | RD2/PSP2 — PORTD bit 2 / Parallel Slave Port bit 2 |
| پن 34 | RD3/PSP3 — PORTD bit 3 / Parallel Slave Port bit 3 |
| پن 35 | RD4/PSP4 — PORTD bit 4 / Parallel Slave Port bit 4 |
| پن 36 | RD5/PSP5 — PORTD bit 5 / Parallel Slave Port bit 5 |
| پن 37 | RD6/PSP6 — PORTD bit 6 / Parallel Slave Port bit 6 |
| پن 38 | RD7/PSP7 — PORTD bit 7 / Parallel Slave Port bit 7 |
| پن 39 | Vss — Ground reference |
| پن 40 | Vdd — Positive supply voltage |
| پن 41 | RE0/RD/AN5 — PORTE bit 0 / Parallel Slave Port read / Analog input channel 5 |
| پن 42 | RE1/WR/AN6 — PORTE bit 1 / Parallel Slave Port write / Analog input channel 6 |
| پن 43 | RE2/CS/AN7 — PORTE bit 2 / Parallel Slave Port chip select / Analog input channel 7 |
| پن 44 | MCLR/Vpp — Master clear reset input / Programming voltage |
عام استعمالات
PIC16C77-10I/PT کے لیے موزوں ہے 7 ایپلیکیشنs: Industrial Motor Control, Process Instrumentation & Data Acquisition, Appliance Control Boards, Security and Access Control Panels, Automotive Body Electronics (Legacy), Embedded Data Acquisition Front-End, Consumer Electronics User Interface Boards.
Industrial Motor Control
The PIC16C77-10I/PT's two CCP/PWM modules, 10 MHz clock, and 8-channel 8-bit ADC make it a strong fit for industrial motor control. Each PWM channel can drive a half-bridge gate driver at switching frequencies up to 40 kHz, while the ADC simultaneously samples DC-bus current, phase voltage, and temperature feedback. With 14 KB of OTP code, the firmware can host a complete sensorless trapezoidal or simple FOC commutation routine plus UART-based Modbus reporting. The 33 GPIO lines provide enough headroom for limit switches, brake drivers, and fault indicators without an external I/O expander.
تجویز کردہ
Process Instrumentation & Data Acquisition
The PIC16C77-10I/PT's 8-channel 8-bit ADC and USART directly serve process-instrumentation front-ends. Each ADC channel can scan a thermocouple, RTD bridge, 4-20 mA loop, or pressure transducer with 8-bit resolution, while the USART streams the digitized values to a host PLC or display at 9600-115200 baud. The 368-byte RAM is enough for moving averages and alarm thresholds, and the industrial -40C to +85C range supports outdoor panel mounting. OTP programming locks the calibration coefficients in place, preventing accidental field-tampering of the instrument firmware.
تجویز کردہ
Appliance Control Boards
White-goods and appliance control boards (washing machines, dishwashers, microwave ovens) commonly use a PIC16C77-10I/PT at the heart of the user-interface and motor controller. The MCU drives the seven-segment or LCD display via GPIO, scans the keypad matrix, and times the wash cycles using its 16-bit Timer1. The PWM outputs regulate the universal motor, drain pump, and water-inlet valves, while the USART interfaces to the inverter board or a service-diagnostic plug. The OTP memory keeps the BOM cost low on a fully debugged, mass-produced appliance platform.
تجویز کردہ
Security and Access Control Panels
The PIC16C77-10I/PT suits access-control and security panels because it integrates a USART for card-reader communication, GPIO for keypad and indicator LEDs, and an SSP port for an external EEPROM logging every badge event. Its 8-channel ADC can monitor battery voltage, tamper switches, and PIR sensor outputs, while the 33 I/O lines drive door strikes, sirens, and a 4x4 matrix keypad. The OTP memory locks the security firmware to prevent on-board tampering, and the -40C to +85C industrial range handles outdoor or unheated vestibule installations.
تجویز کردہ
Automotive Body Electronics (Legacy)
Although Microchip's automotive-grade PIC family has largely superseded the PIC16C77-10I/PT, the part remains in service in some legacy automotive body-electronics modules such as window lift controllers, mirror adjusters, and seat-position memories. Its -40C to +85C industrial temperature range and 33 GPIO ports are sufficient for these tasks. The CCP/PWM outputs can drive small DC motors and the USART can communicate with the body-control network. Note that AEC-Q100 automotive qualification is not applicable to the standard PIC16C77-10I/PT.
تجویز کردہ
Embedded Data Acquisition Front-End
The PIC16C77-10I/PT works well as a stand-alone data-acquisition front-end that streams 8-bit ADC samples over UART or SPI to a host PC. With 8 ADC channels sampled sequentially, the effective throughput is 10-50 ksamples/s depending on firmware overhead. The 368-byte RAM can buffer short bursts before the USART, smoothing out host-side latency. The configurable SSP port also allows an external high-speed ADC or DAC to be added when 8-bit resolution is insufficient, making the PIC16C77-10I/PT a flexible mixed-signal front-end for laboratory and field instrumentation.
تجویز کردہ
Consumer Electronics User Interface Boards
The PIC16C77-10I/PT is a practical choice for the user-interface board of mid-range consumer products where cost dominates. It can scan a 4x4 keypad matrix, drive a 16-character LCD, read rotary encoders via its 16-bit Timer1, and exchange settings with the main processor over USART. The 33 GPIO pins eliminate the need for an I/O expander, and the industrial temperature range covers the -10C to +60C range typical of indoor consumer products. OTP memory prevents end-user firmware tampering in cost-sensitive markets.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16C77-10I/PT — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16F77-I/PT | PIC16C77-10I/P | PIC16C77-10/PT | PIC16C77-04I/PT | PIC16C67-10I/PT | PIC16C74BT-04I/PT |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | 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 | 44-pin TQFP (PT) - same | 44-pin TQFP (PT) - same |
| Max Clock Frequency | 10 MHz | 20 MHz | 10 MHz | 10 MHz | 4 MHz | 10 MHz | 4 MHz |
| Number of I/O | 33 | 33 | 33 | 33 | 33 | 33 | 33 |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | 0C to +70C (Commercial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Lifecycle Status | Obsolete | Active (recommended replacement) | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
اہم امتیازی خصوصیات
- Direct flash-based successor with identical pinout (بمقابلہPIC16F77-I/PT)
- Highest clock speed in the family at 10 MHz (بمقابلہPIC16C77-04I/PT)
- Industrial temperature range for harsh environments (بمقابلہPIC16C77-10/PT)
ڈیزائن نوٹس
Estimated: At 10 MHz clock with all peripherals active, the PIC16C77-10I/PT typically draws 10-20 mA from Vdd = 5 V, giving power dissipation of roughly 50-100 mW. Decouple Vdd/Vss (pins 19 and 40) with a 100 nF ceramic cap placed within 5 mm of each pin, and add a bulk 10 uF tantalum or aluminum-polymer cap near the package. Tie the AVdd/AVss pair (pins 29/30) to a separate analog ground island and decouple with 100 nF + 10 uF to keep ADC noise low.
Route the analog AVdd/AVss pair with a dedicated analog ground island that joins the digital ground at a single point near the Vss pin. Place the ADC input traces away from the PWM switching traces (RC1/RC2 CCP pins) to minimize digital-to-analog crosstalk. For the 44-TQFP package, keep the four-layer PCB stack-up with continuous ground and power planes under the MCU to keep EMI and supply noise low.
Do not exceed the absolute maximum Vdd of 7.0 V; design for a regulated 5 V +/- 10% supply. The MCLR/Vpp pin (pin 44) requires a 10 kohm pull-up to Vdd for normal operation; for in-circuit programming, add a diode clamp to limit Vpp rise to 13.5 V. Always develop code on a windowed (JW) PIC16C77 or on the flash PIC16F77 first - OTP parts cannot be erased, so a programming error bricks the device permanently.
The PIC16C77-10I/PT's 8-bit ADC has a recommended source impedance below 10 kohm for full accuracy. Add an op-amp buffer (such as an MCP6002) between high-impedance sensors and the AN0-AN7 inputs to preserve the 8-bit conversion. For the USART lines (RC6/RC7), keep traces short (< 50 mm) and add 100 ohm series termination if baud rates exceed 57600 to suppress reflections.
تعمیل کی معلومات
RoHS and lead-free status depend on the specific date code and supplier lot; the obsolete status means RoHS compliance varies. AEC-Q100 qualification does not apply - the part is not automotive-grade. Verify compliance per lot when sourcing from distributors.