PIC16C76-04/SO - 4MHz 8-Bit OTP MCU 14KB | Microchip
MPN: PIC16C76-04/SO ✓ Hoạt độngPIC16C76-04/SO Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, on-chip program memory, RAM, peripherals, and an arithmetic logic unit. The PIC16C76-04/SO belongs to the mid-range PIC16 family, which sits within the broader PIC16C sub-family and ultimately the PICmicro 8-bit product line. It is typically deployed as the main system controller in cost-sensitive embedded products where deterministic execution and a small instruction set are prioritized over raw throughput.
Key features include 35 single-word instructions, 200 ns instruction cycle at 4 MHz, 14-bit instruction word, 8-level deep hardware stack, in-circuit serial programming via two pins, and a wide operating voltage range of 2.5 V to 6.0 V. Power consumption is low: 5 V at 4 MHz typical supply current is approximately 15 mA, and standby current falls to 1 uA typical at 3 V/32 kHz. The device supports commercial (0C to +70C) and industrial (-40C to +85C) temperature ranges and provides 25 mA sink/source current on I/O pins.
The PIC16C76-04/SO uses a Harvard RISC architecture with separate program and data buses. Program memory is OTP EPROM with a typical endurance of 1000 erase/program cycles and data retention of 40 years minimum. The 5-channel 8-bit ADC supports successive-approximation conversion with up to 8 analog input channels multiplexed from device pins. Brown-out reset (BOR) protects against corrupted operation during supply voltage dips, and the watchdog timer with on-chip RC oscillator improves system reliability without external components.
Typical applications include industrial control logic, appliance controls, HVAC thermostats, automotive body electronics (non-safety), sensor signal conditioning with on-chip ADC, low-speed serial communication bridges, and consumer device user interfaces. The 22 I/O pins and analog input channels let a single device replace several discrete logic ICs.
When designing with the PIC16C76-04/SO, ensure the supply voltage stays within the 2.5 V to 6.0 V window and use the recommended 0.1 uF decoupling capacitor close to VDD. For OTP programming, the in-circuit serial programming interface needs only RB6 and RB7 free of any circuitry that could interfere with the high-voltage programming signals.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the standalone manufacturer datasheet to help engineers compare options and accelerate sourcing decisions.
Bộ thay thế dễ dàng lắp đặt cho PIC16C76-04/SO — 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 PIC16C76-04/SO (cùng hình factor và footprint) — khác nhau ở Core Architecture, Package, Program Memory Size, ADC, Operating Temperature Range.
PIC16F76-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C76-04I/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16C76-04E/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C77-04/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16C76-04/SO Tỷ lệ tối đa & tính chất điện
| Product Type | 8-bit Microcontroller (MCU) |
| Series | PIC 16C |
| Core Architecture | PIC16 RISC, Harvard |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 14 KB (8K x 14) |
| RAM Size | 368 bytes |
| EEPROM Size | None |
| Maximum Clock Speed | 4 MHz |
| Instruction Cycle | 200 ns at 4 MHz |
| Instruction Set Size | 35 single-word instructions |
| I/O Pins | 22 |
| ADC | 5 channels, 8-bit resolution |
| Timers | Two 8-bit + one 16-bit timer/counter |
| CCP Modules | 2 (Capture/Compare/PWM) |
| Serial Interfaces | SSP (SPI/I2C) + USART |
| Supply Voltage Range | 2.5 V to 6.0 V |
| Typical Supply Current (5V, 4 MHz) | 15 mA typical |
| Standby Current (3V, 32 kHz) | 1 uA typical |
| I/O Sink/Source Current | 25 mA / 25 mA |
| Khoảng nhiệt độ hoạt động | 0 C to +70 C (commercial) |
| Package Type | 28-pin SOIC (0.295 inch / 7.50 mm width) |
| Kiểu lắp đặt | Surface Mount |
| Watchdog Timer | Yes, with on-chip RC oscillator |
| Brown-Out Reset (BOR) | Yes |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
Cấu hình chân PIC16C76-04/SO
| Chân 1 | MCLR/VPP — Master Clear (reset) input / programming voltage |
| Chân 2 | RA0/AN0 — PORTA bit 0 / analog input channel 0 |
| Chân 3 | RA1/AN1 — PORTA bit 1 / analog input channel 1 |
| Chân 4 | RA2/AN2 — PORTA bit 2 / analog input channel 2 |
| Chân 5 | RA3/AN3/VREF — PORTA bit 3 / analog input 3 / ADC voltage reference |
| Chân 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Chân 7 | RA5/AN4/SS — PORTA bit 5 / analog input 4 / SPI slave select |
| Chân 8 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| Chân 9 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| Chân 10 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| Chân 11 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / CCP2 I/O |
| Chân 12 | RC2/CCP1 — PORTC bit 2 / CCP1 I/O (PWM) |
| Chân 13 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Chân 14 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Chân 15 | RC5/SDO — PORTC bit 5 / SPI data out |
| Chân 16 | RC6/TX/CK — PORTC bit 6 / USART TX / USART clock |
| Chân 17 | RC7/RX/DT — PORTC bit 7 / USART RX / USART data |
| Chân 18 | VSS — Ground reference |
| Chân 19 | VDD — Positive supply voltage (2.5V to 6.0V) |
| Chân 20 | RB0/INT — PORTB bit 0 / external interrupt input |
| Chân 21 | RB1 — PORTB bit 1 |
| Chân 22 | RB2 — PORTB bit 2 |
| Chân 23 | RB3/PGM — PORTB bit 3 / ICSP programming clock |
| Chân 24 | RB4 — PORTB bit 4 |
| Chân 25 | RB5 — PORTB bit 5 |
| Chân 26 | RB6/PGC — PORTB bit 6 / ICSP clock (programming) |
| Chân 27 | RB7/PGD — PORTB bit 7 / ICSP data (programming) |
| Chân 28 | VSS — Ground reference |
Ứng dụng tiêu biểu
PIC16C76-04/SO phù hợp cho 6 Áp dụngs: Industrial Control Logic, Appliance Control Boards, HVAC Thermostats and Environmental Sensors, Automotive Body Electronics (Non-Safety), Sensor Signal Conditioning and Bridge Readout, Low-Speed Serial Communication Bridges.
Industrial Control Logic
The PIC16C76-04/SO fits industrial control logic applications where deterministic 35-instruction RISC execution and 22 I/O pins replace discrete logic ICs. The 200 ns instruction cycle at 4 MHz is sufficient for relay sequencing, motor contactor control, and digital I/O expansion in PLC sub-modules. The 5-channel 8-bit ADC reads sensor inputs such as temperature, pressure, and current shunts directly, eliminating an external ADC chip. With 14 KB OTP program memory, the firmware fits completely on-chip and is locked after programming, preventing field tampering. Brown-out reset and watchdog timer provide robustness against industrial supply transients and EMI events common on factory floors.
Được đề xuất
Appliance Control Boards
The PIC16C76-04/SO is widely deployed in consumer and commercial appliance control boards including washing machines, dishwashers, refrigerators, and microwave ovens. Its 25 mA I/O sink/source current drives relay coils, solenoids, and LED indicators directly without buffer transistors. The two CCP (Capture/Compare/PWM) modules generate precise timing signals for triac-fired heater elements and motor speed control. The wide 2.5 V to 6.0 V supply range tolerates unregulated wall-adapter inputs after rectification. OTP memory prevents accidental firmware changes in the field, and the 14 KB code space accommodates user-interface state machines and sensor fusion algorithms for modern appliances.
Được đề xuất
HVAC Thermostats and Environmental Sensors
The PIC16C76-04/SO powers HVAC thermostat and environmental sensor designs where its 5-channel 8-bit ADC and 22 I/O drive the user interface and sensor matrix. The 1 uA standby current at 3 V/32 kHz enables battery-powered remote sensors that sleep between measurements, extending battery life to years. The synchronous serial port interfaces SPI temperature/humidity sensors or I2C RTC chips. Brown-out reset prevents thermostat corruption during brown-outs caused by compressor inrush. The 28-SOIC footprint is compact enough for wall-mount thermostat enclosures while leaving room for terminal-block connections.
Được đề xuất
Automotive Body Electronics (Non-Safety)
The PIC16C76-04/SO handles non-safety automotive body electronics such as seat controllers, mirror adjusters, interior lighting dimmers, and window lift logic. Its automotive cousins in the same silicon family are PIC16C76-04I/SO and PIC16C76-04E/SO, qualified for -40 C to +85 C or -40 C to +125 C operating ranges required under hood and in cabin. The USART module interfaces LIN-bus transceivers for sub-net communications; the CCP modules drive PWM-controlled DC motors for mirror and seat positioning. Note: this PIC16C OTP family is not AEC-Q100 qualified; safety-critical ECUs must use PIC16F or dsPIC33 automotive parts.
Được đề xuất
Sensor Signal Conditioning and Bridge Readout
The PIC16C76-04/SO provides integrated sensor signal conditioning and bridge readout for strain gauges, load cells, thermistors, and process-control 4-20 mA loops. Its on-chip 8-bit ADC samples the bridge directly, while the 22 I/O pins drive mux switches, reference voltages, and display indicators. The 5 V supply rail and 14 KB OTP code space accommodate lookup-table linearization for sensor non-linearity without external DSP chips. Brown-out reset prevents false readings during supply transients when inductive loads share the rail. The cost-optimized OTP variant keeps BOM cost low for high-volume industrial sensor transmitters.
Được đề xuất
Low-Speed Serial Communication Bridges
The PIC16C76-04/SO serves as a low-cost protocol bridge between UART, SPI, and I2C peripherals, replacing discrete logic converters and dedicated bridge ICs. Its USART module handles RS-232/RS-485 asynchronous links, while the SSP module operates as either SPI master/slave or I2C master/slave. Firmware can implement protocol translation, packet routing, or buffering between legacy industrial sensors and modern controllers. The 368-byte RAM accommodates typical 64-byte buffers for both interfaces, and the 14 KB OTP holds protocol-stack code comfortably. Brown-out reset protects buffer contents during supply transients common in industrial environments.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C76-04/SO — 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 | PIC16F76-I/SO | PIC16C76-04I/SO | PIC16C76-04E/SO | PIC16C77-04/SO |
|---|---|---|---|---|---|
| Package | 28-SOIC (7.50 mm) | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same | 28-SOIC (7.50 mm) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Core Architecture | PIC16 RISC, 8-bit | PIC16 RISC, 8-bit | PIC16 RISC, 8-bit | PIC16 RISC, 8-bit | PIC16 RISC, 8-bit |
| Program Memory Type | OTP (14 KB) | Flash (14 KB) | OTP (14 KB) | OTP (14 KB) | OTP (14 KB) |
| Maximum Clock Speed | 4 MHz | 20 MHz | 4 MHz | 4 MHz | 4 MHz |
| RAM Size | 368 bytes | 368 bytes | 368 bytes | 368 bytes | 368 bytes |
| ADC Channels / Resolution | 5 ch / 8-bit | 5 ch / 8-bit | 5 ch / 8-bit | 5 ch / 8-bit | 8 ch / 8-bit |
| Operating Temperature | 0 C to +70 C (Commercial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +125 C (Extended) | 0 C to +70 C (Commercial) |
| I/O Pins | 22 | 22 | 22 | 22 | 22 |
Bảo phân biệt quan trọng
- Higher speed with same pinout and feature set (vsPIC16C76-04/SO vs PIC16F76-I/SO)
- Wider operating temperature range (vsPIC16C76-04/SO vs PIC16C76-04I/SO)
- Extended temperature for automotive underhood (vsPIC16C76-04/SO vs PIC16C76-04E/SO)
Ghi chú thiết kế
Estimated: typical supply current is 15 mA at 5 V/4 MHz, so VDD trace should handle at least 30 mA peak budget including I/O sink/source spikes. Place a 0.1 uF decoupling capacitor as close as possible to the VDD pin (pin 19) with the ground return to the nearest VSS pin (18 or 28). Add a bulk 10 uF tantalum or aluminum electrolytic on the same supply rail. Brown-out reset (BOR) prevents firmware corruption during supply dips; verify BOR voltage threshold matches your minimum VDD specification.
Keep the 4 MHz crystal or resonator traces to OSC1 (pin 8) and OSC2 (pin 9) short and surrounded by a ground guard ring to reduce EMI coupling. The MCLR/VPP pin (pin 1) needs a 10 kohm pull-up to VDD for normal operation; for ICSP programming, the pull-up must be removable or bypassed. If using the ICSP pins RB6/PGC (pin 26) and RB7/PGD (pin 27) for in-circuit programming, ensure no circuitry on those pins interferes with the programming signals, or use isolation resistors.
OTP memory cannot be erased or rewritten; verify your firmware with a flash equivalent (PIC16F76-I/SO) before committing to OTP production. The 8-bit ADC reference voltage on RA3 (pin 5) must be stable - noise on VREF degrades conversion accuracy. I/O sink/source current is 25 mA per pin but total PORT current is limited (typically 90 mA per port); budget total I/O load carefully when driving multiple relays or LEDs simultaneously. Programming voltage on MCLR/VPP is typically 13 V; ensure the ICSP programmer is configured for PIC16C76, not the lower-voltage PIC16F76 device signature.
Thông tin tuân thủ
RoHS and REACH compliance per Microchip product environmental information. The PIC16C76-04/SO is not AEC-Q100 qualified; for AEC-Q100 automotive applications use dsPIC33 or PIC16F automotive-grade parts. Conflict-minerals compliance per Microchip supplier declarations.
