PIC12C509-04/P - 8-Bit 4MHz OTP MCU 1.5KB | Microchip
MPN: PIC12C509-04/P ✓ فعالPIC12C509-04/P جائزہ
An 8-bit microcontroller is a single-chip computer that processes data in 8-bit-wide chunks using a Harvard or modified-Harvard architecture; in the Microchip taxonomy it sits under the PIC family, which is itself a sub-family of microcontrollers, embedded controllers, and ultimately standard ICs. OTP variants are programmed once by the user or contract manufacturer, in contrast to flash-based PICs that allow field re-programming, which makes them attractive for low-cost, high-volume, fixed-function applications.
Key features include a RISC core with 33 single-cycle instructions, a programmable 4 MHz internal/external oscillator option, a watchdog timer with its own on-chip RC oscillator for reliable recovery, power-saving Sleep mode, and a wide operating voltage range of 2.5 V to 5.5 V. The 8-pin footprint gives 6 usable I/O lines plus VDD and VSS, with each I/O capable of sourcing up to 25 mA for direct LED drive. The device is qualified for the standard 0 °C to +70 °C commercial temperature range (the -04 speed grade and /P PDIP suffix) and is RoHS-compliant.
Typical applications span low-cost consumer appliances, hobby/educational projects, simple sensor interfaces, and replacement of discrete logic. Designers should leave enough PCB area for the through-leads and apply decoupling capacitors within 5 mm of VDD/VSS; the MCLR pin must be tied high through a resistor for normal operation and pulled low only for in-circuit serial programming.
کے لیے ڈراپ اِن متبادل PIC12C509-04/P — 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 PIC12C509-04/P (یکساں فارم فیکٹر اور فٹ پرنٹ) — میں مختلف Watchdog Timer, Package, Timers, Program Memory Size, Program Memory Type.
PIC12C509A-04/P
✅ ڈراپ-اِن📋 حوالہ جاتی متبادل (کیٹلاگ میں نہیں)
PIC12C508A-04/P
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC12F509-I/P
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC12F508-I/P
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC12C508-04/P
✅ ڈراپ-اِنقیمت کے لیے رابطہ کریں
ڈیٹا شیٹ دیکھیں →PIC12C509-04/P زیادہ سے زیادہ ریٹنگز اور برقی خصوصیات
| Core Architecture | PIC 8-bit RISC |
| Core Sub-family | Baseline PIC12C |
| Program Memory Type | OTP (One-Time Programmable) EPROM |
| Program Memory Size | 1.5 KB (1K x 12) |
| Data RAM | 41 bytes |
| Data EEPROM | Not present |
| Maximum CPU Clock | 4 MHz |
| Instruction Cycle Time | 200 ns (4 MHz, 1:1 clock ratio for /04 variant) |
| Operating Voltage Range | 2.5 V to 5.5 V |
| I/O Pins | 6 (of 8 package pins; 2 are VDD/VSS) |
| I/O Sink/Source Current | 25 mA per pin |
| Timers | 1 x 8-bit Timer0 with watchdog |
| Watchdog Timer | Yes, dedicated on-chip RC oscillator |
| ADC | Not present |
| Comparator | Not present |
| ICSP (In-Circuit Serial Programming) | Yes (2-wire) |
| پیکیج | 8-pin PDIP (300 mil) |
| ماؤنٹنگ ٹائپ | Through-Hole |
| آپریٹنگ درجہ حرارت رینج | 0 °C to +70 °C (commercial) |
| RoHS اسٹیٹس | Compliant |
PIC12C509-04/P پن کنفیگریشن
| پن 1 | GP5/OSC1/CLKIN — GPIO GP5 / external oscillator input / external clock input |
| پن 2 | GP4/OSC2/CLKOUT — GPIO GP4 / external oscillator output / clock output |
| پن 3 | GP3/MCLR/VPP — GPIO GP3 / Master Clear reset (active low) / programming voltage |
| پن 4 | GP2/T0CKI — GPIO GP2 / Timer0 external clock input |
| پن 5 | GP1 — GPIO GP1 |
| پن 6 | GP0 — GPIO GP0 |
| پن 7 | VSS — Ground reference |
| پن 8 | VDD — Positive supply (2.5 V to 5.5 V) |
عام استعمالات
PIC12C509-04/P کے لیے موزوں ہے 6 ایپلیکیشنs: Low-Cost Consumer Appliance Controller, Educational Microcontroller Learning Platform, Discrete-Logic Replacement / Glue Controller, Simple Sensor Interface / Signal Conditioner, Automotive Interior Lighting Module (Pre-CAN Era Style), Battery-Operated IoT Edge Node (Sleep-Duty Cycle).
Low-Cost Consumer Appliance Controller
The PIC12C509-04/P fits small household appliances (toasters, fans, simple timers) because of its 1.5 KB OTP program memory, 6 GPIO pins (sufficient for relay, button, LED, and buzzer), and 25 mA per-pin drive that can source LEDs without a driver. With a 4 MHz internal RC plus external crystal option, the device runs a fixed state-machine cleanly. At 2.5-5.5 V it operates directly from 3.3 V or 5 V rails, while OTP keeps BOM cost low in mass production. The 8-pin PDIP through-hole package is friendly to hand-soldered prototypes and small-batch runs.
تجویز کردہ
Educational Microcontroller Learning Platform
The PIC12C509-04/P is a popular microcontroller for university and hobbyist courses because of its simple baseline RISC architecture (33 instructions), small 1.5 KB memory that forces disciplined coding, and 8-pin PDIP package that drops into a breadboard or DIP socket. Students learn timer interrupts, watchdog reset, and Sleep-mode power saving on a real production silicon without the complexity of peripherals. The /04 4 MHz grade provides a 200 ns instruction cycle, easy to trace by hand. The MCLR pin supports 2-wire ICSP, allowing instructors to demonstrate programming workflows.
تجویز کردہ
Discrete-Logic Replacement / Glue Controller
Replacing 4-6 discrete 74HC gates with one PIC12C509-04/P shrinks PCB area and gives designers a programmable state machine instead of hard-wired logic. With 6 GPIO and 4 MHz CPU, it can scan a 4-key keypad, drive a small LED, and toggle a relay in well under 1 ms. The 41-byte RAM is enough for a lookup-table decoder. OTP memory and 25 mA per-pin drive let it switch relays or low-side MOSFETs directly. The 8-pin PDIP footprint and 0-70 °C commercial range suit industrial control panels and instrumentation front-ends.
تجویز کردہ
Simple Sensor Interface / Signal Conditioner
The PIC12C509-04/P can serve as a low-cost sensor interface (RTD, thermistor, or humidity sensor digitizer) where the on-chip Timer0 measures RC charge time to within 1% and the 4 MHz CPU computes linearization. Six GPIO is sufficient for sensor power-gate, sense input, alert LED, and 1-wire output. The 2.5 V minimum supply lets it run directly from a single Li coin cell. The /04 speed grade ensures deterministic 200 ns cycle timing for sensor read. 41 bytes RAM easily holds calibration constants.
تجویز کردہ
Automotive Interior Lighting Module (Pre-CAN Era Style)
For low-current automotive interior lighting (door-step lamps, vanity LEDs, courtesy lights), the PIC12C509-04/P provides 6 GPIO that can PWM multiple LEDs through MOSFET drivers at 4 MHz. 25 mA per-pin source lets it drive small LEDs directly, and 1.5 KB of code supports smooth fade-in/fade-out ramps. Note that this part lacks AEC-Q100 qualification; for new automotive designs Microchip recommends PIC16F1xxx AEC-Q100 qualified parts. Use the /04 grade's deterministic 200 ns timing for repeatable PWM periods.
تجویز کردہ
Battery-Operated IoT Edge Node (Sleep-Duty Cycle)
In battery-powered sensor edge nodes, the PIC12C509-04/P's Sleep mode (current at the µA level) combined with watchdog wakeup yields years of life on a CR2032. The 4 MHz /04 clock provides fast wake-and-process cycles (200 ns per instruction) so the CPU spends most of its time asleep. 41 bytes RAM and 6 GPIO are enough for a single sensor read and an interrupt-driven wake. The 2.5 V minimum supply operates directly from a depleted 3 V coin cell. OTP keeps BOM cost minimal in fixed-function sensor pucks.
تجویز کردہ
تجویز کردہ پروڈکٹس کا خلاصہ
کے لیے انجینئرنگ ریفرنس ڈیٹا PIC12C509-04/P — موازنہ، ڈیزائن رہنمائی، اور تعمیل کی معلومات۔
انتخاب کی گائیڈ
متبادلات کے ساتھ موازنہ
| پیرامیٹر | یہ پروڈکٹ | PIC12C509A-04/P | PIC12C508A-04/P | PIC12F509-I/P | PIC12F508-I/P | PIC12C508-04/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 8-pin PDIP | 8-pin PDIP | 8-pin PDIP | 8-pin PDIP | 8-pin PDIP | 8-pin PDIP |
| Program Memory | 1.5 KB OTP | 1.5 KB OTP | 768 B OTP | 1.5 KB Flash | 768 B Flash | 768 B OTP |
| Data RAM | 41 bytes | 41 bytes | 25 bytes | 41 bytes | 25 bytes | 25 bytes |
| Maximum CPU Clock | 4 MHz | 4 MHz | 4 MHz | 20 MHz | 20 MHz | 4 MHz |
| Memory Type | OTP EPROM | OTP EPROM | OTP EPROM | Flash | Flash | OTP EPROM |
| I/O Pins | 6 | 6 | 6 | 6 | 6 | 6 |
| Operating Voltage | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.5 V to 5.5 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V | 2.5 V to 5.5 V |
اہم امتیازی خصوصیات
- Largest OTP program memory in the 8-pin baseline PIC12 family (بمقابلہPIC12C508A-04/P)
- OTP memory is ideal for high-volume fixed-function designs (بمقابلہPIC12F509-I/P)
- 4 MHz speed grade is fast enough for tight control loops (بمقابلہPIC12C508-04/P)
ڈیزائن نوٹس
Place a 100 nF decoupling capacitor as close as possible to the VDD pin (pin 8) of the PIC12C509-04/P, ideally within 5 mm. For designs switching relays or LEDs, add a 10 µF bulk capacitor near the regulator. The device is fully static, so the internal state is preserved even with the clock stopped - this allows aggressive Sleep-mode duty cycling to reach µA-level average current on battery-powered designs.
When using an external crystal or resonator, place it within 5-10 mm of the OSC1/OSC2 pins (pins 1-2) and guard the traces with a ground ring to reduce EMI pickup. For ICSP programming, dedicate the MCLR/VPP pin (pin 3) to a 10 kΩ pull-up resistor and expose it (along with GP0/GP1) on a programming header. Do not place a series capacitor on MCLR in production - leave it accessible for the programmer.
The PIC12C509-04/P uses OTP EPROM, so firmware cannot be revised once programmed. Lock the code-protect bit only after final firmware is verified, because a code-protected OTP part cannot be re-programmed to recover access. The 41-byte RAM is shared with the 2-level hardware stack, so reserve at least 4 bytes for stack frames. Finally, do not drive any GPIO pin above VDD or below VSS - the absolute maximum rating is -0.3 V to +6.0 V, but exceeding VDD by even 0.5 V will forward-bias internal ESD diodes and inject current into the supply rail.
Keep the MCLR trace short and direct; long MCLR traces pick up noise and cause spurious resets. If the design is in an electrically noisy environment (near a motor or relay), add a 100 nF ceramic in parallel with the MCLR pull-up. For multi-ICSP chains (production programming of multiple boards), include a 4.7 kΩ isolation resistor on the data line so one board's programmer does not back-drive another.
تعمیل کی معلومات
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - not suitable for new automotive designs. Lead-free PDIP package.
