PIC16C712-04I/SO - 8-bit OTP MCU 1.75KB 4MHz 18-SOIC | Microchip
MPN: PIC16C712-04I/SO ✗ اختتامِ زندگیPIC16C712-04I/SO جائزہ
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (program + data), and programmable peripherals. MCUs form the lowest tier of the embedded computing hierarchy: microcontroller -> embedded processor -> system-on-chip (SoC) -> computer. The PIC16C712 specifically uses a Harvard-architecture 8-bit RISC core, executing most instructions in a single 200 ns cycle, which simplifies deterministic real-time control code.
Key features include 4 channels of 8-bit A/D with input multiplexing, two 8-bit timers plus one 16-bit timer, a CCP module for PWM and measurement tasks, an internal oscillator option, and a wide 4.0 V to 5.5 V supply range with industrial-grade -40C to +85C operation. The 13 I/O pins are 5 V tolerant and source/sink up to 25 mA each, enough to drive LEDs or small relays directly.
The architecture uses a 14-bit instruction word and a separate 8-bit data path, giving the C712 code-space efficiency advantages over 8-bit cores with 12-bit instructions. The integrated ADC with 8-bit resolution and the CCP PWM channel allow direct sensor readout and actuator drive without external glue logic, while the OTP program memory keeps unit cost low for high-volume production.
Typical applications include automotive body and appliance controllers, industrial sensor interfaces, white-goods and HVAC control boards, simple closed-loop fan or pump controllers, and consumer products requiring a low-cost programmable logic replacement. The 18-SOIC wide-body package is hand-solder friendly and well suited to through-hole-adapter prototypes.
When designing with this part, note that OTP memory is one-time programmable - firmware must be fully validated in flash-based development parts (PIC16F712) before committing to the OTP die. Always reserve the MCLR pin configuration and ensure decoupling capacitors are placed within 5 mm of VDD/VSS for ADC noise immunity.
This page synthesizes distributor pricing, package-pinned drop-in alternatives, and application design notes - information not aggregated on any single manufacturer or distributor page.
کے لیے ڈراپ اِن متبادل PIC16C712-04I/SO — 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 PIC16C712-04I/SO (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Timers, Core Architecture, RoHS Status, Program Memory Type.
PIC16C712-04E/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C712-04/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C711-04I/SO
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16C710-04I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C712-04I/SO زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | 8-bit PIC RISC (Harvard) |
| Program Memory Type | OTP (One-Time Programmable) EPROM |
| Program Memory Size | 1.75 KB (1K x 14) |
| Data RAM | 128 bytes |
| Data EEPROM | Not present |
| زیادہ سے زیادہ کلاک فریکوئنسی | 4 MHz |
| Supply Voltage (VDD) | 4.0 V to 5.5 V |
| I/O Pins | 13 |
| ADC | 4 channels x 8-bit |
| Timers | 2 x 8-bit + 1 x 16-bit (TMR0/TMR1/TMR2) |
| CCP Modules | 1 (Capture / Compare / PWM) |
| آپریٹنگ درجہ حرارت | -40C to +85C (Industrial, 'I' suffix) |
| پیکیج | 18-SOIC (0.295 inch / 7.50 mm width, tube) |
| ماؤنٹنگ ٹائپ | Surface Mount |
| پن کی تعداد | 18 |
| RoHS اسٹیٹس | Compliant |
| Instruction Set | 35 single-word instructions |
PIC16C712-04I/SO پن کنفیگریشن
| پن 1 | RA2/AN2 — Bidirectional I/O pin / analog input channel 2 |
| پن 2 | RA3/AN3/VREF — Bidirectional I/O / analog input 3 / ADC voltage reference |
| پن 3 | RA4/T0CKI — Bidirectional I/O / Timer0 clock input |
| پن 4 | MCLR — Master Clear (reset) input, active low |
| پن 5 | VSS — Ground reference |
| پن 6 | RB0/INT — Bidirectional I/O / external interrupt input |
| پن 7 | RB1 — Bidirectional I/O |
| پن 8 | RB2 — Bidirectional I/O |
| پن 9 | RB3 — Bidirectional I/O |
| پن 10 | RB4 — Bidirectional I/O |
| پن 11 | RB5 — Bidirectional I/O |
| پن 12 | RB6 — Bidirectional I/O |
| پن 13 | RB7 — Bidirectional I/O |
| پن 14 | VDD — Positive supply voltage (4.0 V to 5.5 V) |
| پن 15 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| پن 16 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| پن 17 | RA0/AN0 — Bidirectional I/O / analog input channel 0 |
| پن 18 | RA1/AN1 — Bidirectional I/O / analog input channel 1 |
عام استعمالات
PIC16C712-04I/SO کے لیے موزوں ہے 6 ایپلیکیشنs: Industrial Sensor Interface Board, Appliance Control Board (White Goods), Automotive Body Controller, Consumer Remote Control / IR Transmitter, Small DC Motor / Fan Speed Controller, Battery Charger / Power Management Slave.
Industrial Sensor Interface Board
The PIC16C712-04I/SO fits industrial sensor-interface boards because it integrates a 4-channel 8-bit ADC for direct analog sensor readout (temperature, pressure, humidity transducers), 13 digital I/O for digital sensor glue logic, and industrial -40C to +85C operation. The CCP module generates PWM to drive 4-20 mA loop excitation or LED indicators without external timer ICs. The 200 ns instruction cycle supports deterministic 1 ms control loops for closed-loop regulators. Place a 10 nF decoupling cap within 5 mm of VDD/VSS and route the analog inputs (RA0-RA3) away from PWM/digital traces to keep ADC noise below 1 LSB. Best for: HVAC sensor boards, factory automation slave nodes.
تجویز کردہ
Appliance Control Board (White Goods)
The PIC16C712-04I/SO is well suited to appliance controllers such as washing machines, dishwashers, and microwave ovens. Its 13 I/O pins each source/sink 25 mA - enough to drive TRIAC optocouplers, relays, and seven-segment LED displays directly without buffer transistors. The CCP module generates zero-crossing-triggered PWM for heater element control, while the 16-bit Timer1 captures tachometer pulses from motor sensors for accurate speed feedback. OTP memory ensures the firmware cannot be reverse-retroengineered, which protects OEM IP. Use industrial -40C to +85C temperature range to handle under-cabinet heat. Verify firmware on PIC16F712 before committing to OTP for production.
تجویز کردہ
Automotive Body Controller
The PIC16C712-04I/SO is targeted at low-end automotive body-electronics modules such as lighting controllers, seat adjusters, mirror controllers, and auxiliary HVAC. It integrates a 4-channel 8-bit ADC for reading switch wiper positions, ambient light sensors, and thermistors, plus 13 I/O pins for relay and LED drive. Operating from a regulated 5 V supply with 4.0-5.5 V tolerance matches automotive post-regulator rails. However, note this part is NOT AEC-Q100 qualified - for AEC-Q100 designs, migrate to PIC16F712-E/SO or PIC18F variants. The 4 MHz max clock keeps EMI emissions low for in-cabin modules where RF susceptibility matters.
تجویز کردہ
Consumer Remote Control / IR Transmitter
The PIC16C712-04I/SO suits IR/RF remote-control transmitters, wireless sensor nodes, and low-cost consumer handhelds. The CCP module generates 38 kHz carrier PWM for IR transmission, while Timer0 handles button-debounce and wake-up timing from sleep mode. With only 1.75 KB OTP program memory, the firmware budget is sufficient for simple NEC/Sony IR protocols, RC encode, or proprietary OOK schemes. Sleep current under 1 uA extends battery life in coin-cell remotes. The 13 I/O pins can matrix-scan a 4x4 keypad (12 pins used) with one pin reserved for IR LED drive. Industrial temp grade handles outdoor temperature extremes for garage-door or gate remotes.
تجویز کردہ
Small DC Motor / Fan Speed Controller
The PIC16C712-04I/SO can implement closed-loop DC motor or fan speed control using its 16-bit Timer1 to measure tachometer feedback pulses and its CCP module to drive a MOSFET gate with variable-duty PWM. The 4-channel 8-bit ADC reads potentiometer speed commands, supply voltage, and current shunt (via op-amp) for overcurrent protection. With 1 microsecond instruction cycle at 4 MHz, the control loop runs at >10 kHz which exceeds the bandwidth of small brushed DC motors. Industrial -40C to +85C operation tolerates fan-heatsink environments. For 3-phase BLDC, choose PIC18F or dsPIC33F families; for brushed DC under 5 A this part is ideal.
تجویز کردہ
Battery Charger / Power Management Slave
The PIC16C712-04I/SO can serve as a low-cost charging controller for NiMH, Li-ion, or lead-acid battery packs in the 1-10 cell range. Its 4-channel 8-bit ADC monitors battery voltage (via divider), charge current (via shunt), cell temperature (via NTC thermistor), and input supply presence. The CCP PWM module drives a buck-converter power stage or linear pass element with closed-loop regulation. Industrial temp range covers outdoor and under-hood environments. OTP memory prevents end-user firmware tampering - important for safety-critical chargers. Migrate to PIC16F712 for AEC-Q100 or where firmware updates are required.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16C712-04I/SO — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16C712-04E/SO | PIC16C712-04/SO | PIC16C711-04I/SO | PIC16C710-04I/SO |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-SOIC (wide-body 7.50 mm) | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same |
| Program Memory | 1.75 KB (1K x 14) OTP | 1.75 KB (1K x 14) OTP | 1.75 KB (1K x 14) OTP | 1.75 KB (1K x 14) OTP | 0.875 KB (512 x 14) OTP -50% |
| Maximum Clock Frequency | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| ADC | 4 channels x 8-bit | 4 channels x 8-bit | 4 channels x 8-bit | None (0 channels) | None (0 channels) |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +125C (Extended) | 0C to +70C (Commercial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| CCP Module | 1 (PWM/Capture/Compare) | 1 | 1 | 1 | 1 |
| Supply Voltage | 4.0 V to 5.5 V | 4.0 V to 5.5 V | 4.0 V to 5.5 V | 4.0 V to 5.5 V | 4.0 V to 5.5 V |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
اہم امتیازی خصوصیات
- Industrial temperature grade for harsh environments (بمقابلہPIC16C712-04/SO)
- Pin-compatible with PIC16C711 family for design flexibility (بمقابلہPIC16C711-04I/SO)
- Flash migration path available (بمقابلہPIC16F712-I/SO)
ڈیزائن نوٹس
PIC16C712 uses OTP (one-time-programmable) EPROM, not flash - a programming error is permanent. Always develop and validate firmware on the flash-based PIC16F712 (same pinout and peripherals) before committing code to the OTP C712. Use a UV-erasable windowed PIC16C712/JW prototype for engineering samples. Estimated bit-cost trade-off: ~15% unit-cost savings on C712 vs F712 at >10k volume justifies the development cycle.
Place a 100 nF ceramic decoupling capacitor within 5 mm of the VDD pin (14) and VSS pin (5), with the trace to VDD shorter than 10 mm to suppress digital switching noise. For ADC accuracy below 1 LSB, add a separate 10 uF bulk capacitor on the analog AVdd rail (shared with VDD on this part) and a ferrite bead between digital and analog ground returns. The internal ADC reference defaults to VDD; for absolute accuracy, apply an external MCP1541 4.096 V reference on RA3/AN3/VREF.
Route the four ADC analog inputs (RA0-RA3) as short traces kept >5 mm away from PWM outputs, oscillator traces, and digital I/O with high dv/dt. Use a ground plane on layer 2 and route analog signals over an unbroken ground pour. For the 18-SOIC wide-body package, use 0.5 mm wide SOIC pads with 1.27 mm pitch - the wide-body (7.50 mm) variant is preferred over the narrow-body (3.90 mm) for hand-solder reworkability and better thermal performance.
The MCLR pin (4) requires a 10 kohm pull-up to VDD for reliable operation; without it the device may intermittently reset due to noise. For noisy environments, add a 100 nF cap from MCLR to VSS to filter fast transients. The OSC1/OSC2 crystal traces must be <10 mm long with a grounded guard ring; stray capacitance above 10 pF on these pins shifts the oscillator frequency and can cause start-up failure at -40 C.
تعمیل کی معلومات
RoHS and lead-free compliant per Microchip product page. NOT AEC-Q100 qualified - this is a legacy industrial/consumer part without automotive certification. For AEC-Q100 applications, choose PIC16F712-E/SO or PIC18F automotive-qualified alternatives.
