PIC16LC76-04I/SP - 8-Bit 4MHz 14KB OTP MCU 28-SPDIP | Microchip
MPN: PIC16LC76-04I/SP ✗ Cuối đờiPIC16LC76-04I/SP Tóm tắt
A microcontroller (MCU) is a single-chip computer containing a processor core, program memory, working RAM, and a configurable set of peripheral interfaces. The PIC16C7X family belongs to Microchip's mid-range PIC architecture and integrates an 8-channel 8-bit Analog-to-Digital Converter (ADC), synchronous and asynchronous serial ports, and Capture/Compare/PWM (CCP) modules. This positions the part as a sub-category of: microcontroller -> embedded processor -> integrated circuit -> semiconductor. The LC prefix designates the low-power CMOS variant optimized for battery-powered applications drawing roughly 50% less quiescent current than the standard PIC16C76.
Key features include Harvard architecture with separate program and data buses, 35 single-word instructions, 200 ns instruction execution time, two 8-bit timers plus one 16-bit timer, a Watchdog Timer with on-chip RC oscillator, and selectable oscillator options (RC, LP, XT, HS). The 22 I/O pins each source/sink up to 25 mA, sufficient for direct LED drive, and the chip operates from a wide 2.5 V to 6.0 V supply, with the LC variant specifically characterized at 3.3 V and 5 V rails typical of low-power designs.
Typical applications include industrial process control (sensor interfacing via the 8-bit ADC), low-power battery-operated instruments, automotive body electronics modules, simple motor control loops, and consumer appliance user-interface controllers. The 14 KB OTP memory suits fixed-function firmware where field updates are not required, lowering per-unit cost versus flash-based equivalents.
When designing with the PIC16LC76-04I/SP, ensure that the MCLR reset pin is pulled high through a 10-50 kohm resistor and that the OSC1/OSC2 oscillator network matches the selected mode (XT for 4 MHz crystal). Decoupling VDD with a 100 nF ceramic capacitor placed within 5 mm of the supply pin is mandatory for ADC accuracy.
Bộ thay thế dễ dàng lắp đặt cho PIC16LC76-04I/SP — 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 PIC16LC76-04I/SP (cùng hình factor và footprint) — khác nhau ở Package, Mounting Type, Maximum Clock Frequency, Program Memory Type, Timers.
PIC16F76-I/SP
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC76-04/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16LC76-04I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16C76-04I/SP
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F876A-I/SP
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16C76-04I/SO
✅ Drop-In ⚠️ Thông số chưa được xác minh📋 Tham chiếu thay thế (không có trong danh mục)
PIC16LC76-04I/SP Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit RISC, Harvard |
| Family | PIC16C7X (mid-range) |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 14 KB (8K x 14 words) |
| RAM | 368 bytes |
| Tần số xung maksimum | 4 MHz |
| Instruction Execution Time | 200 ns at 4 MHz |
| Supply Voltage (VDD) | 2.5 V to 6.0 V (3.3 V / 5 V typical) |
| I/O Pins | 22 |
| ADC | 8-channel, 8-bit |
| Timers | 2 x 8-bit + 1 x 16-bit |
| I/O Pin Current (source/sink) | 25 mA per pin |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial, 'I' suffix) |
| Hộp | 28-SPDIP (0.300 inch, 7.62 mm pitch) |
| Kiểu lắp đặt | Through-Hole |
Cấu hình chân PIC16LC76-04I/SP
| 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 / 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 (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 output |
| Chân 12 | RC2/CCP1 — PORTC bit 2 / CCP1 PWM 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 synchronous clock |
| Chân 17 | RC7/RX/DT — PORTC bit 7 / USART RX / USART synchronous 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 / Low-voltage programming input |
| Chân 24 | RB4 — PORTB bit 4 (interrupt-on-change) |
| Chân 25 | RB5 — PORTB bit 5 (interrupt-on-change) |
| Chân 26 | RB6/PGC — PORTB bit 6 / ICSP clock input |
| Chân 27 | RB7/PGD — PORTB bit 7 / ICSP data input/output |
| Chân 28 | RE0/RD/AN5 — PORTE bit 0 / Read control / Analog input 5 |
Ứng dụng tiêu biểu
PIC16LC76-04I/SP phù hợp cho 6 Áp dụngs: Industrial Process Control Sensor Interface, Battery-Operated Portable Instruments, Automotive Body Electronics Modules, Simple Motor Control and PWM Drives, Consumer Appliance User-Interface Controllers, Low-Cost Security and Access Control Panels.
Industrial Process Control Sensor Interface
The PIC16LC76-04I/SP suits industrial sensor nodes that read analog process variables and actuate digital outputs in 4-20 mA loops or relay banks. Its integrated 8-channel 8-bit ADC reads thermocouples, pressure transducers, and level sensors directly, while the 22 I/O pins each source/sink 25 mA, sufficient to drive relays, solenoids, and indicator LEDs without external buffers. The LC variant's reduced quiescent current (about half the PIC16C76) is critical for loop-powered 4-20 mA transmitters where total current budget is below 3.5 mA. Industrial -40C to +85C operation handles factory-floor temperature extremes, and the 28-SPDIP through-hole package withstands vibration better than SMD equivalents, ideal for DIN-rail mounted PLCs.
Được đề xuất
Battery-Operated Portable Instruments
The PIC16LC76-04I/SP is purpose-built for battery-powered handheld instruments such as digital multimeters, handheld scanners, and portable data loggers, where every microamp of quiescent current matters. The LC variant draws roughly 50% less Iq than the PIC16C76, extending battery life in 3.6 V lithium-thionyl-chloride packs rated for 10+ year deployments. The 14 KB OTP program memory holds fixed calibration tables and user-interface firmware, and the 4 MHz clock combined with 200 ns instruction cycles is more than adequate for keypad scanning, LCD driving, and serial protocol handling without idle CPU waste. The industrial -40C to +85C rating supports outdoor and refrigerated logistics applications.
Được đề xuất
Automotive Body Electronics Modules
The PIC16LC76-04I/SP is well suited for non-safety automotive body controllers such as window lift modules, seat position memories, mirror adjusters, and interior lighting controllers where 8-bit processing and OTP memory meet BOM cost targets. The MCU's 22 I/O pins directly drive small DC motors via discrete H-bridges, and the 8-bit ADC reads potentiometer-based position sensors and current shunts. The industrial -40C to +85C temperature range covers cabin environments, though under-hood applications require the AEC-Q100 qualified PIC16F76 or PIC18F family. The 28-SPDIP package simplifies prototyping and field-service replacement compared to fine-pitch QFN equivalents.
Được đề xuất
Simple Motor Control and PWM Drives
The PIC16LC76-04I/SP handles closed-loop DC motor speed control, PWM-driven fans, and small brushless DC (BLDC) commutation in cost-sensitive appliances such as HVAC blowers, water pumps, and small appliance motors. The Capture/Compare/PWM (CCP) module generates accurate PWM signals up to 10-bit resolution for smooth speed control, while the 16-bit Timer1 captures tachometer feedback for closed-loop regulation. The 22 I/O pins each sink 25 mA, enough to drive optocouplers or small gate drivers directly. The LC variant's low Iq supports always-on standby modes where the MCU listens for wake-up commands while consuming microamp-level current.
Được đề xuất
Consumer Appliance User-Interface Controllers
The PIC16LC76-04I/SP fits cost-sensitive white-goods user-interface controllers such as washing-machine displays, microwave keypads, and dishwasher cycle selectors where the 14 KB OTP holds the full state machine and button debounce logic. Its 22 I/O pins scan 4x4 key matrices directly and drive 7-segment LED or character LCDs without external decoder ICs. The 8-bit ADC reads rotary encoder positions, thermistor temperature sensors, and water-level probes. Industrial -40C to +85C operation handles the thermal stress of appliance interiors, and the 28-SPDIP package simplifies wave-soldered manufacturing versus reflow-only SMD equivalents, reducing assembly cost.
Được đề xuất
Low-Cost Security and Access Control Panels
The PIC16LC76-04I/SP is appropriate for keypad-based security panels, magnetic-door controllers, and simple RFID reader interfaces where 14 KB OTP provides ample firmware space and pin-count matches the I/O requirements. The hardware USART supports Wiegand-protocol card readers at 26-bit or 34-bit formats, and the 8-bit ADC supervises backup-battery voltage to trigger low-battery alerts. The Watchdog Timer with on-chip RC oscillator prevents firmware lockups in unattended installations. The LC variant's low quiescent current extends backup-battery runtime during AC mains failure, critical for UL-listed burglar alarm panels that must operate 24+ hours on standby battery.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16LC76-04I/SP — 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/SP | PIC16LC76-04/SO | PIC16LC76-04I/SO | PIC16C76-04I/SP | PIC16F876A-I/SP |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SPDIP (through-hole) | 28-SPDIP (through-hole) | 28-SPDIP (through-hole) | 28-SPDIP (through-hole) | 28-SPDIP (through-hole) | 28-SPDIP (through-hole) |
| Program Memory Type | 14 KB OTP | 14 KB Flash (re-programmable) | 14 KB OTP | 14 KB OTP | 14 KB OTP (non-LC) | 14 KB Flash |
| Maximum Clock Frequency | 4 MHz | 20 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz |
| Power Variant | LC (low-power CMOS) | F (Flash, standard power) | LC (low-power) | LC (low-power) | C (standard CMOS) | F (Flash, standard power) |
| Operating Temperature | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | 0 C to +70 C (Commercial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
| ADC | 8-channel, 8-bit | 8-channel, 8-bit | 8-channel, 8-bit | 8-channel, 8-bit | 8-channel, 8-bit | 8-channel, 10-bit |
| I/O Pins | 22 | 22 | 22 | 22 | 22 | 22 |
| Lifecycle Status | NRND | Active (recommended) | NRND | NRND | NRND | Active |
Bảo phân biệt quan trọng
- Flash re-programmability eliminates OTP one-shot risk (vsPIC16LC76-04I/SP (this OTP part))
- Lower quiescent current at 3.3 V extends battery life (vsPIC16C76-04I/SP)
- Surface-mount SOIC option for space-constrained designs (vsPIC16LC76-04I/SO)
Ghi chú thiết kế
The PIC16LC76-04I/SP LC variant draws roughly half the quiescent current of the standard PIC16C76 at 3.3 V operation, but absolute Iq values at 4 MHz remain in the low-mA range. For battery-powered designs, enable Sleep mode between ADC samples to drop current to microamp levels; the Watchdog Timer with on-chip RC oscillator can wake the MCU at programmable intervals. Place a 100 nF ceramic decoupling capacitor within 5 mm of VDD (pin 19) and VSS (pin 18), plus a bulk 10 uF tantalum or aluminum-polymer capacitor at the supply rail. Power-on reset is reliable above 1.5 V VDD; designs below this threshold require external MCP130T or equivalent voltage supervisor.
Route the 4 MHz XTAL traces symmetrically between OSC1 (pin 8) and OSC2 (pin 9), keeping them short (under 10 mm) and guarded by a ground pour to minimize EMI coupling into the analog ADC inputs. Place the crystal within 5 mm of the MCU, with load capacitors (typically 15-33 pF) returned to a clean analog ground. The MCLR pin (pin 1) must be pulled high through a 10-50 kohm resistor; do not leave MCLR floating, as noise pickup will trigger spurious resets. For ICSP in-circuit programming on prototype boards, route PGC (pin 26) and PGD (pin 27) to a 6-pin header with no series resistors on the signal lines.
Do not confuse the LC low-power variant with the standard PIC16C76: the LC version is characterized at both 3.3 V and 5 V while the C version is 5 V only. OTP memory is one-time writable; verify firmware with a PIC16F76 flash prototype before committing to OTP production parts, as OTP devices cannot be erased and re-programmed. The 4 MHz speed grade is the slowest of the PIC16C76 family; if application firmware exceeds 4 MHz MIPS, choose PIC16LC76-10 (10 MHz) or PIC16LC76-20 (20 MHz) variants. Do not apply voltages above 6.0 V to VDD; absolute maximum VDD is 7.0 V with permanent damage above this threshold.
Thông tin tuân thủ
RoHS, REACH, lead-free, and halogen-free status not stated in verified distributor data; default Microchip policy is RoHS/REACH compliance for SPDIP parts but verify against lot-specific Certificate of Conformance. Not AEC-Q100 qualified; for automotive body electronics requiring AEC-Q100, use PIC16F76-I/SP with appropriate automotive grade variant.
