PIC16C712T-04I/SO - 8-Bit 4MHz 1.75KB OTP MCU 18-SOIC | Microchip
MPN: PIC16C712T-04I/SO ✗ اختتامِ زندگیPIC16C712T-04I/SO جائزہ
A microcontroller (MCU) is a single-chip computer that integrates a CPU, program memory, working RAM, and peripheral interfaces onto one silicon die. In the broader semiconductor hierarchy, the PIC16C712 sits within microcontrollers -> embedded processors -> digital ICs -> semiconductors. The "16C" prefix denotes CMOS OTP technology, where the program memory is written once at production time and is non-erasable, making the device well suited to mature, cost-sensitive, high-volume consumer and industrial products where firmware is stable.
Key features include 35 single-word RISC instructions, all single-cycle except two-cycle branches, a 200 ns instruction cycle at 20 MHz maximum clock, an 8-level deep hardware stack, and 13 bidirectional I/O pins with individual direction control. The 4-channel 8-bit A/D converter simplifies sensor-interface designs, while the CCP module enables simple PWM motor and lighting control without external timing circuitry. The industrial (-40C to +85C) temperature range is encoded in the "I" suffix, and the "04" speed grade marks the 4 MHz operating point.
Typical applications include appliance control modules, simple sensor interfaces with on-chip ADC, low-cost PWM fan or LED drivers, and replacement of legacy PIC16C5X designs requiring A/D capability. The 18-SOIC package is the most common PCB-friendly footprint in the family and matches the PIC16C711 / PIC16C710 pinout, simplifying layout migration.
When designing with this device, note that OTP memory cannot be re-programmed in the field, so firmware must be fully validated before production programming. Consider the flash-based PIC16F716 or PIC16F707 as in-system reprogrammable alternatives for new designs. Always de-couple VDD with a 100 nF ceramic capacitor placed within 5 mm of the pin.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
کے لیے ڈراپ اِن متبادل PIC16C712T-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 PIC16C712T-04I/SO (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Package, Core Architecture, Timers, Program Memory Size, Program Memory Type.
PIC16C712-04I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C712T-04/SO
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC16F716-I/SO
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC16C712-20I/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 →PIC16C712T-04I/SO زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | PIC16 8-bit RISC |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 1.75 KB (1K x 14 words) |
| RAM Size | 128 bytes |
| Maximum CPU Frequency | 20 MHz |
| Speed Grade | 04 (4 MHz operating point, 200 ns instruction cycle) |
| Supply Voltage (VDD) | 2.5 V to 5.5 V (typical 5 V operation) |
| آپریٹنگ درجہ حرارت رینج | -40 C to +85 C (Industrial, "I" suffix) |
| I/O Pins | 13 bidirectional |
| A/D Converter | 4 channels, 8-bit resolution |
| Timers | Timer0 (8-bit) + Timer1 (16-bit) + Timer2 (8-bit) |
| Capture/Compare/PWM | 1 CCP module |
| Instruction Set | 35 single-word instructions |
| پیکیج | 18-pin SOIC (SO), 7.50 mm body width, tape and reel |
| ماؤنٹنگ ٹائپ | Surface Mount |
| RoHS اسٹیٹس | Compliant (per Microchip product page) |
PIC16C712T-04I/SO پن کنفیگریشن
| پن 1 | MCLR/VPP — Master Clear (reset) input / programming voltage input |
| پن 2 | RA0/AN0 — PORTA bit 0 / A/D channel 0 input |
| پن 3 | RA1/AN1 — PORTA bit 1 / A/D channel 1 input |
| پن 4 | RA2/AN2/CVREF — PORTA bit 2 / A/D channel 2 / comparator voltage reference output |
| پن 5 | RA3/AN3/VREF+ — PORTA bit 3 / A/D channel 3 / A/D positive voltage reference |
| پن 6 | RA4/T0CKI — PORTA bit 4 (open-drain) / Timer0 clock input |
| پن 7 | RA5/AN4/SS — PORTA bit 5 / A/D channel 4 / SPI slave select |
| پن 8 | VSS — Ground reference |
| پن 9 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| پن 10 | OSC2/CLKOUT — Oscillator crystal output / clock output (Fosc/4) |
| پن 11 | RC0/T1OSO/T1CKI — PORTC bit 0 / Timer1 oscillator output / Timer1 clock input |
| پن 12 | RC1/T1OSI/CCP2 — PORTC bit 1 / Timer1 oscillator input / Capture-Compare-PWM 2 |
| پن 13 | RC2/CCP1 — PORTC bit 2 / Capture-Compare-PWM 1 (primary PWM) |
| پن 14 | RC3 — PORTC bit 3 (digital I/O only) |
| پن 15 | RC4 — PORTC bit 4 (digital I/O only) |
| پن 16 | RC5 — PORTC bit 5 (digital I/O only) |
| پن 17 | RC6 — PORTC bit 6 (digital I/O only) |
| پن 18 | VDD — Positive supply voltage (2.5 V to 5.5 V) |
عام استعمالات
PIC16C712T-04I/SO کے لیے موزوں ہے 6 ایپلیکیشنs: Appliance Control Module, PWM Fan Speed Controller, Battery Charger State-of-Charge Monitor, Industrial Sensor Signal Conditioner, HVAC Damper Actuator Controller, Automotive Interior LED Dimmer (NRND - legacy only).
Appliance Control Module
The PIC16C712T-04I/SO is well matched to appliance control modules such as washing-machine user-interface boards, microwave oven keypads, and dishwasher timers. The 4-channel 8-bit A/D converter reads temperature sensors (NTC), water-level sensors, and door-switch states directly, eliminating an external ADC IC. The 4 MHz operating speed supports keypad scanning at 10 ms intervals while leaving CPU bandwidth for relay and buzzer sequencing. Industrial -40C to +85C operation covers laundry-room and kitchen ambient conditions. OTP memory secures firmware against field tampering, an important safety consideration in consumer appliances. Companion parts: PIC16F716-I/SO (modern flash replacement), ULN2003A (relay driver), and 24LC256 (external EEPROM for cycle counters).
تجویز کردہ
PWM Fan Speed Controller
The PIC16C712T-04I/SO's on-chip Capture/Compare/PWM module drives a 25 kHz PWM signal into a MOSFET gate to regulate brushless-DC fan speed, replacing costly analog tachometer loops. The 4-channel ADC samples tachometer feedback and NTC temperature sensor inputs simultaneously, while the 16-bit Timer1 sets the PWM period with sub-microsecond resolution. The 4 MHz speed grade is sufficient for closed-loop fan control with 10 ms update intervals. The wide 2.5 V to 5.5 V supply range supports both 3.3 V and 5 V fan designs. Companion parts: PIC16F716-I/SO (for firmware-revision flexibility), IRLZ44N (logic-level N-MOSFET), and MCP9700 (temperature sensor).
تجویز کردہ
Battery Charger State-of-Charge Monitor
The PIC16C712T-04I/SO monitors individual cell voltages in 4-cell NiMH or Li-ion battery packs through its 4-channel 8-bit ADC, displaying state-of-charge on an LED bargraph driven by PORTC. The 13 I/O pins directly drive 13 status LEDs without external logic, reducing BOM cost. The 4 MHz clock provides 1 ms ADC scan periods, sufficient for real-time voltage tracking during charge/discharge cycles. The industrial temperature range supports outdoor solar-charging applications. OTP memory prevents accidental firmware corruption in field-deployed battery packs. Companion parts: PIC16F716-I/SO (reprogrammable alternative), MCP73831 (Li-ion charge controller), and TL431 (precision voltage reference).
تجویز کردہ
Industrial Sensor Signal Conditioner
The PIC16C712T-04I/SO conditions 4-20 mA loop-powered sensor signals by reading the loop current via the on-chip 8-bit ADC and outputting a normalized PWM signal on the CCP pin. The 4-channel ADC supports simultaneous monitoring of pressure, temperature, and flow sensors, while the 4 MHz CPU handles linearization and scaling algorithms. The 2.5 V minimum supply is compatible with 3.3 V industrial sensor boards. The wide industrial temperature range (-40C to +85C) covers factory-floor environments. OTP memory locks calibration coefficients, preventing unauthorized modification. Companion parts: PIC16F716-I/SO (modern equivalent), XTR105 (4-20 mA current-loop transmitter), and AD620 (low-cost instrumentation amplifier).
تجویز کردہ
HVAC Damper Actuator Controller
The PIC16C712T-04I/SO controls HVAC zone damper actuators by reading zone thermostat temperature via the 4-channel ADC and driving a brushed DC motor through the CCP PWM output. The 16-bit Timer1 measures motor rotation pulses from an optical encoder, providing closed-loop position feedback. The 4 MHz speed grade runs PID control loops at 100 Hz update rate. The 13 I/O pins handle end-switch interrupts, manual override inputs, and LED status indication without external logic. Industrial temperature grade supports unconditioned plant-room installation. Companion parts: PIC16F716-I/SO (reprogrammable for firmware iterations), DRV8871 (DC motor driver), and DS18B20 (1-Wire temperature sensor).
تجویز کردہ
Automotive Interior LED Dimmer (NRND - legacy only)
The PIC16C712T-04I/SO was historically used in automotive interior LED dimmer modules, reading dashboard rheostat position through the 4-channel 8-bit ADC and driving a MOSFET gate through the CCP PWM output. The 4 MHz clock supports 100 Hz PWM refresh rates, avoiding flicker in dashboard illumination. The wide supply range (2.5 V to 5.5 V) tolerates automotive load-dump transients when paired with external TVS protection. The industrial temperature grade covers cabin environment, but under-hood applications require the AEC-Q100 qualified PIC16F716T-I/SO. As of 2026-09-18 this is a legacy-only design; new automotive programs should use the PIC16F716 family or PIC16F15344. Companion parts: PIC16F716-I/SO (AEC-Q100 version), IRF7507 (dual P/N-MOSFET for PWM), and MCP1700 (3.3 V LDO).
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC16C712T-04I/SO — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC16C712-04I/SO | PIC16C712T-04/SO | PIC16F716-I/SO | PIC16C712-20I/SO | PIC16C711-04I/SO | PIC16C710-04I/SO |
|---|---|---|---|---|---|---|---|
| Package | 18-SOIC (SO), 7.50 mm | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 1.75 KB OTP | 1.75 KB OTP | 1.75 KB OTP | 1.75 KB Flash | 1.75 KB OTP | 1.75 KB OTP | 1.75 KB OTP |
| Max CPU Frequency | 4 MHz (04 grade) | 4 MHz | 4 MHz | 20 MHz | 20 MHz | 4 MHz | 4 MHz |
| A/D Converter | 4-ch, 8-bit | 4-ch, 8-bit | 4-ch, 8-bit | 4-ch, 8-bit | 4-ch, 8-bit | 4-ch, 8-bit | None |
| CCP/PWM Module | 1 CCP | 1 CCP | 1 CCP | 1 CCP | 1 CCP | None | None |
| Temp Range | -40C to +85C (I) | -40C to +85C (I) | 0C to +70C (commercial) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) | -40C to +85C (I) |
| Memory Type | OTP (one-time) | OTP | OTP | Flash (reprogrammable) | OTP | OTP | OTP |
| Lifecycle | NRND | NRND | NRND | Active | NRND | NRND | NRND |
اہم امتیازی خصوصیات
- On-chip A/D converter with CCP/PWM eliminates external components (بمقابلہPIC16C710-04I/SO)
- Modern flash-based equivalent available for new designs (بمقابلہPIC16F716-I/SO)
- Industrial temperature grade with 4 MHz operation (بمقابلہPIC16C712T-04/SO)
ڈیزائن نوٹس
Decouple VDD (pin 18) with a 100 nF X7R ceramic capacitor placed within 5 mm of the MCU and a 10 uF bulk capacitor on the supply rail. The PIC16C712 has no internal voltage regulator; clean 5 V or 3.3 V must be supplied externally. For battery-powered designs, add a 100 ohm + 10 uF RC filter on VDD to suppress battery transients. A power-on reset is generated internally, but a manual reset can be implemented by pulling MCLR (pin 1) low via a 10 kohm pull-up to VDD and an external reset switch or supervisor IC.
Place the 4 MHz crystal or resonator within 5 mm of pins 9 and 10 (OSC1/OSC2), and route the oscillator traces over a continuous ground plane to minimize EMI. Keep high-speed digital signals (CCP PWM, oscillator traces) away from analog inputs AN0-AN3. The exposed copper under the 18-SOIC should not be tied to VDD - leave it floating or connect it to ground for thermal relief. Add 4.7 kohm pull-ups on SDA/SCL if using I2C peripherals, even when unused, to prevent false start conditions.
OTP program memory cannot be re-programmed - all firmware bugs must be fixed before production programming. Configuration bits (oscillator selection, watchdog timer, code protection, brown-out voltage) are also OTP and must be set correctly the first time. Brown-out reset (BOR) is enabled by default at 4.0 V; disable it only if the supply is well-regulated above 4.5 V. The CCP1 output is multiplexed on RC2 - if the application needs RC2 as digital I/O, the PWM must be disabled in the CCPCON register. A/D converter reference defaults to VDD; for accurate measurements, switch to external VREF+ on RA3.
تعمیل کی معلومات
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - choose PIC16F716T-I/SO or similar for automotive. Lead-free matte-tin finish on SOIC leads.
