PIC12CE519-04I/SM - 8-Bit 4MHz 1.5KB OTP MCU SOIJ-8 | Microchip
MPN: PIC12CE519-04I/SM ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.69 | $2.69 |
| 10 | $2.42 | $24.20 |
| 100 | $2.18 | $218.00 |
| 500 | $1.95 | $975.00 |
| 1,000 | $1.74 | $1,740.00 |
PIC12CE519-04I/SM Overview
An 8-bit microcontroller (MCU) is a small computing-on-a-chip that integrates a CPU, non‑volatile program memory, working RAM, and peripheral I/O into a single die; in the broader taxonomy it sits under microcontroller -> embedded controller -> integrated circuit -> semiconductor. The PIC12C5xx family occupies the entry-level tier of Microchip's 8-bit line, optimized for low-cost, low-pin-count applications that still need deterministic execution and a tiny footprint.
Key features include 4 MHz maximum operating frequency (200 ns instruction cycle), 33 single-word instructions, 8-bit wide data path, two 8-bit timers, a watchdog timer with on-chip RC oscillator, and a power-on-reset circuit. The device draws roughly 1.8 mA at 5 V / 4 MHz and supports operation from 2.5 V to 5.5 V across the industrial -40 °C to +85 °C temperature range.
Architecturally, the PIC12CE519 uses a Harvard RISC core with separate program and data buses, a 14-bit wide instruction word, and a two-stage pipeline that delivers most instructions in a single cycle. The integrated DAC and serial EEPROM emulation logic allow direct analog output without external components, which simplifies bill-of-material cost.
Typical applications include appliance control, security sensors, small consumer products, low-end remote controls, and battery-powered accessories where the on-chip DAC and EEPROM are used to trim or store calibration data. Industrial control front-ends that need deterministic timing and minimum component count are also well served by this part.
A key design consideration is OTP program memory: code cannot be updated in-circuit, so firmware must be fully validated before programming. Developers should use the JW windowed variant (PIC12CE518/JW or PIC12CE519/JW) for prototyping and migrate to the OTP part once firmware is frozen.
This page synthesizes distributor pricing, drop-in same-family and cross-family alternatives, application references, and practical design notes not consolidated in the manufacturer datasheet.
Drop-in alternatives for PIC12CE519-04I/SM — same package, pin-to-pin compatible. Different-package parts requiring PCB rework are excluded.
Variants in this series
Same-series models that are drop-in compatible with PIC12CE519-04I/SM (same form factor and footprint) — differing in Package, Core Architecture, Program Memory Size, RAM Size, Operating Temperature.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC12CE519-04E/SM
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.18 / Unit
View Datasheet →PIC12CE519-04/SM
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.68 / Unit
View Datasheet →PIC12CE518-04I/SM
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC12C509A-04I/SM
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$0.93 / Unit
View Datasheet →PIC12C508A-04I/SM
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.05 / Unit
View Datasheet →PIC12C672-10I/SM
✅ Drop-In ⚠️ 参数待验证📋 Reference alternative (not in catalog)
PIC12CE519-04I/SM Maximum Ratings & Electrical Characteristics
| Core | PIC 8-bit RISC (Harvard) |
| Instruction Set | 33 single-word instructions, 12-bit wide |
| Program Memory | 1.5 KB OTP (1K x 14) |
| RAM | 41 bytes |
| Data EEPROM | 16 bytes on-chip |
| Maximum CPU Frequency | 4 MHz (200 ns instruction cycle) |
| Operating Voltage (Vdd) | 2.5 V to 5.5 V |
| I/O Pins | 6 GPIO |
| Timers | 1 x 8-bit (TMR0), 1 x 8-bit (TMR1) + WDT |
| On-chip DAC | 6-bit (4-bit mode selectable) |
| Reset | Power-on Reset (POR), MCLR |
| Oscillator | Internal RC + external XT/LP/HS selectable |
| Operating Temperature | -40 °C to +85 °C (Industrial, "I") |
| Package | 8-pin SOIJ (SM, 208 mil) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
PIC12CE519-04I/SM Pin Configuration
| Pin 1 | GP5/OSC1/CLKIN — GPIO GP5 / Timer1 clock / external clock input |
| Pin 2 | GP4/OSC2/CLKOUT — GPIO GP4 / oscillator crystal output / CLKOUT |
| Pin 3 | GP2/T0CKI — GPIO GP2 / TMR0 clock input |
| Pin 4 | GP1 — GPIO GP1 |
| Pin 5 | GP0 — GPIO GP0 |
| Pin 6 | Vss — Ground reference |
| Pin 7 | GP3/MCLR/Vpp — GPIO GP3 (input-only) / Master Clear reset / programming voltage |
| Pin 8 | Vdd — Positive supply (2.5 V to 5.5 V) |
Typical Applications
PIC12CE519-04I/SM is suitable for 6 applications: Appliance Control Sub-systems, Security & PIR Sensor Modules, Low-End Remote Controls & IR Emitters, Battery-Powered Toys & Accessories, Industrial Sensor Signal Conditioning, Automotive Body Electronics (Non-Safety).
Appliance Control Sub-systems
The PIC12CE519-04I/SM fits appliance control sub-systems because it integrates a 6-bit DAC, 16-byte EEPROM for calibration storage, and 6 GPIO lines - sufficient to drive a relay, read a sensor, and trim an analog reference in one 8-pin SOIJ footprint. The 4 MHz core at 200 ns/instruction gives deterministic loop times under 25 us for typical PID-style fan or heater control, while 1.8 mA active at 5 V keeps linear regulator dissipation low. Recommended companion parts: PIC10F200 for slave indicator logic, MCP9700 analog temperature sensor for thermal feedback, and a ULN2003 Darlington driver for relay switching. The internal RC oscillator eliminates external crystal cost in noise-tolerant mains environments.
Recommended
Security & PIR Sensor Modules
The PIC12CE519-04I/SM is well suited to PIR motion sensor modules where the on-chip DAC sets the analog trip threshold, the EEPROM stores calibration constants and tamper flags, and the 6 I/O pins drive an alarm relay plus status LED. The 4 MHz instruction rate enables a 1 ms sensor-sampling loop while keeping current consumption below 2 mA active. The -40 °C to +85 °C industrial grade supports unheated outdoor enclosures. Recommended companion parts: RE200B PIR sensor element, MCP1700 3.3 V LDO, and a 38 kHz IR demodulator for combination motion/IR detectors. Its OTP memory prevents in-field firmware tampering, an asset in security products.
Recommended
Low-End Remote Controls & IR Emitters
Remote controls benefit from the PIC12CE519-04I/SM's 4 MHz core, 1.5 KB code space, and integrated EEPROM for protocol / device-key storage. The 6 I/O directly drive an IR LED through a transistor, a tactile-key matrix up to 12 keys, and a status LED without external logic. At 200 ns/instruction, full NEC or RC5 frame generation is achievable in software without CPU stall. The 8-pin SOIJ package's 208-mil body allows hand-solderable hobbyist remote builds while still meeting industrial reliability. Recommended companion parts: TSOP38238 IR receiver for two-way learning remotes, and an NPN driver such as 2N2227 for the IR emitter.
Recommended
Battery-Powered Toys & Accessories
Battery-powered toys use the PIC12CE519-04I/SM because of its 2.5 V to 5.5 V Vdd range - it runs directly from two alkaline cells or a single Li-ion cell - and its sub-microamp sleep current. The integrated DAC allows PWM-free analog sound or motor-speed control, while the 16-byte EEPROM remembers user settings after battery removal. The 6 GPIO handle a motor H-bridge enable, a piezo buzzer, and a push button. Recommended companion parts: DRV8871 motor driver H-bridge, MCP1640 boost converter for 1.5 V to 3.3 V applications, and PKLCS1212E4000-R1 piezo buzzer for sound effects.
Recommended
Industrial Sensor Signal Conditioning
Industrial 4-20 mA loop-powered sensor heads use the PIC12CE519-04I/SM to linearize, scale, and re-emit analog signals using the on-chip 6-bit DAC, while the 16-byte EEPROM stores factory calibration coefficients. The 4 MHz core executes linearization math in well under 1 ms, and the -40 °C to +85 °C industrial temperature range suits outdoor or unconditioned cabinets. With only 6 GPIO, the chip works as a slave to a higher-pin-count MCU or directly drives a 4-20 mA current loop via a DAC buffer. Recommended companion parts: XTR105 4-20 mA current loop transmitter, MCP6002 op-amp for DAC buffering, and TPS7A30 LDO for low-noise analog rail.
Recommended
Automotive Body Electronics (Non-Safety)
The PIC12CE519-04I/SM supports non-safety automotive body functions such as ambient lighting trim, seat-position memory presets (stored in the on-chip 16-byte EEPROM), and HVAC mode indicators. Its -40 °C to +85 °C industrial temperature grade covers cabin environments, while the 4 MHz core handles LIN slave communication in software. The 8-pin SOIJ package's small footprint enables placement inside door modules or seat switches. Recommended companion parts: MCP2551 CAN transceiver (note: PIC12CE519 cannot natively drive CAN; pair with a CAN-to-LIN bridge), TLE4275 5 V automotive LDO, and BTS50015 high-side switch for lighting loads.
Recommended
Recommended Products Summary
Engineering reference data for PIC12CE519-04I/SM — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC12CE519-04E/SM | PIC12CE519-04/SM | PIC12CE518-04I/SM | PIC12C509A-04I/SM | PIC12C508A-04I/SM |
|---|---|---|---|---|---|---|
| Package | 8-pin SOIJ (SM) | 8-pin SOIJ (SM) - same | 8-pin SOIJ (SM) - same | 8-pin SOIJ (SM) - same | 8-pin SOIJ (SM) - same | 8-pin SOIJ (SM) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 1.5 KB OTP (1K x 14) | 1.5 KB OTP (1K x 14) | 1.5 KB OTP (1K x 14) | 768 B OTP (512 x 12) | 1.5 KB OTP (1K x 12) | 750 B OTP (512 x 12) |
| RAM | 41 bytes | 41 bytes | 41 bytes | 41 bytes | 41 bytes | 25 bytes |
| On-chip DAC | 6-bit (4-bit mode) | 6-bit (4-bit mode) | 6-bit (4-bit mode) | None | None | None |
| Data EEPROM | 16 bytes | 16 bytes | 16 bytes | 16 bytes | None | None |
| Maximum Frequency | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| Operating Temperature | -40C to +85C (I grade) | -40C to +125C (E grade) | 0C to +70C (commercial) | -40C to +85C (I grade) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| I/O Pins | 6 | 6 | 6 | 6 | 6 | 6 |
Key Differentiators
- On-chip 6-bit DAC and 16-byte EEPROM in 8-pin package (vs PIC12C509A-04I/SM)
- Larger program memory than PIC12CE518 family member (vs PIC12CE518-04I/SM)
- Industrial -40 to +85 °C operating range as standard (vs PIC12CE519-04/SM)
Design Notes
Estimated: at Vdd=5 V and 4 MHz active, the PIC12CE519-04I/SM draws approximately 1.8 mA per the Microchip PIC12CE5xx datasheet, dissipating 9 mW. In sleep mode the part drops below 1 µA, making it suitable for battery-backed designs. Use a 100 nF decoupling capacitor within 5 mm of the Vdd pin and a 10 µF bulk capacitor at the regulator output to suppress the inrush current spike when waking from sleep via watchdog timeout.
The internal 4 MHz RC oscillator is factory-trimmed to ±1% at 5 V / 25 °C but drifts ±5% across voltage and temperature per Microchip datasheet DS40191F. For UART or IR carrier generation requiring better than ±2% accuracy, switch to the external XT or HS oscillator mode with a crystal or resonator. GP5 (OSC1/CLKIN) and GP4 (OSC2/CLKOUT) must then be freed from GPIO use.
GP3 is input-only because it shares the pin with MCLR/Vpp; do not drive it as an output or you will damage the part during in-circuit programming. MCLR must be tied to Vdd through a 10 kΩ resistor if not used, otherwise the part will reset intermittently. The OPTION register pull-ups are weak (~20 kΩ); for noisy industrial environments add external 4.7 kΩ pull-ups on any input pin that may float.
Estimated: at Vdd=5.5 V with all 6 GPIO sourcing 20 mA simultaneously (absolute maximum), power dissipation is roughly 660 mW - the SOIJ-8 package has a θJA near 100 °C/W on a 1 oz copper 1 sq inch pad, giving a 66 °C temperature rise. Stay below 20 mA per pin total and 90 mA Vdd sum to keep junction temperature inside the -40 °C to +85 °C industrial range.
The 8-pin SOIJ (SM) package has a 208-mil body with 50-mil pitch. Route all signals on the top layer and place a continuous ground pour on the bottom layer to provide a thermal sink and short return paths for the 4 MHz edges. Keep traces to GP3/MCLR shorter than 25 mm to avoid stray-capacitance-induced reset glitches; place the decoupling cap within 3 mm of pin 8 (Vdd).
Compliance Information
RoHS and lead-free confirmed via Microchip product page and DigiKey listing. Not AEC-Q100 qualified - PIC12CE5xx family is targeted at industrial and consumer use, not automotive safety-critical applications.
