PIC16C76-20/SO - 8-bit OTP MCU 14KB 20MHz SOIC-28 | Microchip
MPN: PIC16C76-20/SO ✗ Cuối đờiPIC16C76-20/SO Tóm tắt
An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (ROM/RAM), and peripherals on one silicon die, optimized for embedded control tasks. Within the broader taxonomy, the PIC16C76 belongs to the microcontroller -> 8-bit MCU -> mid-range PIC16C family -> CMOS RISC architecture. These MCUs sit below 16-bit and 32-bit microcontrollers in performance and complexity but excel in deterministic real-time control, low cost, and ultra-low standby power. The PIC16C7X family adds integrated analog (ADC) and serial peripherals on top of the baseline PIC16C5X/PIC12CXXX core, making it a bridge between pure digital logic replacement and full analog-mixed systems.
Key features include 35 single-word instructions (all single-cycle except program branches), wide operating voltage from 2.5 V to 6.0 V, commercial/industrial/extended temperature grades, 25 mA source/sink per I/O, and Microchip's nanoWatt-style low-power modes drawing 15 µA typical at 5 V/4 MHz active and 1 µA typical standby at 3 V/32 kHz. The OTP program memory allows one-time factory or field programming via Microchip development tools, and the device is code-compatible with PIC16C72/73/74/77 siblings.
Typical applications include industrial automation controllers, sensor signal conditioning, low-end motor and HVAC control, instrumentation front-ends, and legacy embedded systems where a drop-in PIC16C7X upgrade path is desired. Microchip explicitly recommends the flash-based PIC16F76 as the newer, reprogrammable alternative for new designs. When designing with this MCU, ensure the OTP programming window is satisfied during in-system programming and observe the 6.0 V absolute-maximum VDD limit to avoid latch-up. The 28-SOIC footprint is industry-standard for through-hole-free mid-range PIC designs.
This page synthesizes current distributor pricing, package-matched drop-in alternatives, and practical design notes not aggregated on a single manufacturer page.
Bộ thay thế dễ dàng lắp đặt cho PIC16C76-20/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 PIC16C76-20/SO (cùng hình factor và footprint) — khác nhau ở Package, Core Architecture, Serial Interfaces, Program Memory Size, Timers.
PIC16F76-I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C76-10/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C76-20I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C76-20E/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C76T-20/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C76-20/SO Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit RISC |
| Family | PIC16C7X (mid-range) |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 14 KB (8K x 14 words) |
| RAM Size | 368 bytes |
| Tần số xung maksimum | 20 MHz |
| Instruction Cycle Time | 200 ns |
| Operating Voltage Range | 2.5 V to 6.0 V |
| I/O Pins | 22 |
| ADC | 5 channels, 8-bit |
| Timers | 2 x 8-bit + 1 x 16-bit |
| Capture/Compare/PWM | 2 modules |
| Serial Interfaces | SSP (SPI/I2C) + USART |
| Hộp | 28-pin SOIC (SO, 0.295 inch / 7.50 mm width) |
| I/O Source/Sink Current | 25 mA / 25 mA |
| Active Current (typ.) | 15 µA at 5 V / 4 MHz |
| Standby Current (typ.) | 1 µA at 3 V / 32 kHz |
| Temperature Grade | Commercial |
| Instruction Set | 35 single-word instructions |
| Kiểu lắp đặt | Surface Mount |
Cấu hình chân PIC16C76-20/SO
| Chân 1 | MCLR/VPP — Master Clear (active-low reset) / OTP programming voltage input |
| 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 channel 3 / ADC negative reference |
| Chân 6 | RA4/T0CKI — PORTA bit 4 (open-drain) / Timer0 clock input |
| Chân 7 | RA5/AN4/SS — PORTA bit 5 / Analog input channel 4 / SPI slave select |
| Chân 8 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| Chân 9 | OSC2/CLKOUT — Oscillator crystal output / clock output (Fosc/4) |
| 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 input/output |
| Chân 12 | RC2/CCP1 — PORTC bit 2 / CCP1 input/output |
| 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 | RB0/INT — PORTB bit 0 / external interrupt input |
| Chân 19 | RB1 — PORTB bit 1 |
| Chân 20 | RB2 — PORTB bit 2 |
| Chân 21 | RB3 — PORTB bit 3 |
| Chân 22 | RB4 — PORTB bit 4 |
| Chân 23 | RB5 — PORTB bit 5 |
| Chân 24 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Chân 25 | RB7/PGD — PORTB bit 7 / ICSP data |
| Chân 26 | VSS — Ground reference |
| Chân 27 | VDD — Positive supply voltage (2.5 V to 6.0 V) |
| Chân 28 | NC — Not connected (per datasheet; reserved) |
Ứng dụng tiêu biểu
PIC16C76-20/SO phù hợp cho 6 Áp dụngs: Industrial Automation Controllers, HVAC and Appliance Control, Sensor Signal Conditioning, Legacy Embedded Upgrades, Low-Speed Communication Gateways, Educational and Development Platforms.
Industrial Automation Controllers
The PIC16C76-20/SO fits industrial PLC sub-modules and sensor-interface boards thanks to its 5-channel 8-bit ADC, 22 GPIO at 25 mA drive, and 20 MHz / 5 MIPS throughput. At 5 V supply it can read 4-20 mA loop inputs, drive relay coils directly, and time multiplex RS-485 communication via the on-chip USART. Its 2.5-6.0 V operating range tolerates loosely regulated 24 V industrial rails stepped down to 5 V, and the 1 µA standby current suits battery-backed black-box recorders that wake on interrupt.
Được đề xuất
HVAC and Appliance Control
In HVAC damper actuators, refrigerator control boards, and washing-machine user-interface modules, the PIC16C76-20/SO delivers deterministic loop times for triac-fired heater regulation and BLDC fan commutation. The dual CCP modules generate PWM at up to 10-bit resolution for variable-frequency drives, while the 8-bit ADC reads thermistor or 4-20 mA pressure transducer inputs. The 28-SOIC footprint enables compact appliance-control PCBs, and the OTP program memory prevents firmware tampering in volume consumer production.
Được đề xuất
Sensor Signal Conditioning
The PIC16C76-20/SO is well suited to bridge-sensor excitation and digital readout for strain gauges, load cells, and pressure transducers. Its 5-channel 8-bit ADC scans up to five sensors with programmable acquisition time, and the 25 mA I/O source current can drive Wheatstone-bridge excitation directly without a separate buffer. The SSP module logs data to a serial EEPROM (e.g., 24LC256), and the USART streams readings to a host PLC. Low standby current (1 µA) enables remote, battery-powered structural-health monitoring nodes.
Được đề xuất
Legacy Embedded Upgrades
Existing products based on the PIC16C72 or PIC16C73 can upgrade to the PIC16C76-20/SO without PCB rework: all four share the 28-pin SOIC pinout documented in the Microchip pin/code compatibility chart. The PIC16C76 adds a 16-bit timer, a second CCP module, and a larger 14 KB program memory over the PIC16C72. This is the typical migration path for legacy designs seeking more peripheral headroom without redesigning the analog front-end. The same code recompiles against the PIC16F76 for new variants.
Được đề xuất
Low-Speed Communication Gateways
The PIC16C76-20/SO bridges I2C sensors and SPI peripherals to UART or RS-232 hosts in low-throughput gateway applications. Its SSP module masters I2C at 100/400 kHz to poll sensors, while the separate USART runs at 9600-115200 baud to forward data to a host controller. With 20 MHz / 5 MIPS, the MCU can sustain full-duplex translation between buses without overrun. Typical deployments include BLE-sensor-to-UART bridges and Modbus RTU slave interfaces in industrial telemetry.
Được đề xuất
Educational and Development Platforms
The PIC16C76-20/SO is widely used in university embedded-systems curricula and Microchip trainer boards because its 35-instruction RISC core, 28-SOIC footprint, and on-chip peripherals cover the canonical 8-bit teaching topics: GPIO, timers, ADC, PWM, I2C, SPI, and UART. The 200 ns instruction cycle makes timing calculations transparent for first-time students. Although newer curricula migrate to PIC16F1x or dsPIC, the C76 remains a faithful teaching artifact for OTP-memory and bare-metal programming concepts.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16C76-20/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 | PIC16C76-10/SO | PIC16C76-20I/SO | PIC16C76-20E/SO | PIC16C76T-20/SO |
|---|---|---|---|---|---|---|
| Package | 28-SOIC (SO, 0.295 inch) | 28-SOIC (same) | 28-SOIC (same) | 28-SOIC (same) | 28-SOIC (same) | 28-SOIC (same) |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory Type | OTP (14 KB) | Flash (14 KB) | OTP (14 KB) | OTP (14 KB) | OTP (14 KB) | OTP (14 KB) |
| Max Clock Frequency | 20 MHz | 20 MHz | 10 MHz | 20 MHz | 20 MHz | 20 MHz |
| Temperature Grade | Commercial (0C to +70C) | Industrial (-40C to +85C) | Commercial | Industrial (-40C to +85C) | Extended (-40C to +125C) | Commercial |
| ADC Channels | 5 x 8-bit | 5 x 8-bit | 5 x 8-bit | 5 x 8-bit | 5 x 8-bit | 5 x 8-bit |
| RAM | 368 bytes | 368 bytes | 368 bytes | 368 bytes | 368 bytes | 368 bytes |
| I/O Pins | 22 | 22 | 22 | 22 | 22 | 22 |
| Lifecycle Status | NRND | Active | NRND | NRND | NRND | NRND |
Bảo phân biệt quan trọng
- One-Time-Programmable memory with industrial temperature options (vsPIC16F76-I/SO)
- Code- and pin-compatible 28-SOIC upgrade path from PIC16C72/73/74 family (vsPIC16C73B-04I/SO)
- 20 MHz / 5 MIPS performance with 1 µA standby current (vsPIC16C76-10/SO)
Ghi chú thiết kế
PIC16C76-20/SO operates from 2.5 V to 6.0 V and draws approximately 15 µA typical active at 5 V / 4 MHz and 1 µA typical standby at 3 V / 32 kHz. Place a 100 nF decoupling capacitor within 5 mm of VDD (pin 27) and a bulk 10 µF tantalum near the MCU. Do NOT exceed 6.0 V; latch-up can permanently damage the CMOS die. For battery applications, use sleep mode aggressively and gate peripheral clocks via PCON.
Use the standard 28-SOIC land pattern from IPC-7351 (1.27 mm pitch). Keep the oscillator traces short (less than 10 mm) and surround the crystal with a ground pour to attenuate radiated EMI. MCLR/VPP (pin 1) requires a 10 kohm pull-up to VDD; adding a 100 nF capacitor here creates a power-on-reset delay. Route ICSP clock (RB6/PGC, pin 24) and data (RB7/PGD, pin 25) traces to a 5-pin header matching the Microchip ICD layout for field programming access.
Because PIC16C76 uses OTP (one-time programmable) memory, a failed programming cycle bricks the device. Verify VDD is within 4.5-5.5 V during OTP programming and that MCLR/VPP rises to 13-14 V cleanly with no ringing. Unlike flash-based PIC16F76, this part CANNOT be reprogrammed - budget extra units for development. Also note that PORTA bit 4 (RA4) is open-drain and requires an external pull-up if used as a digital output driving a logic-high load.
Thông tin tuân thủ
RoHS and lead-free status per Microchip product page; AEC-Q100 not applicable for commercial-grade 8-bit MCU; halogen-free status not explicitly stated in scraped data and is marked unknown.
