PIC12CE519-04E/SN - 8-bit 4MHz OTP MCU 1.5KB EPROM 8-SOIC | Microchip
MPN: PIC12CE519-04E/SN ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.78 | $2.78 |
| 10 | $2.5 | $25.00 |
| 100 | $2.22 | $222.00 |
| 500 | $1.95 | $975.00 |
| 1,000 | $1.67 | $1,670.00 |
PIC12CE519-04E/SN Overview
An 8-bit microcontroller (MCU) is a single-chip computer that combines a CPU, program memory, data memory, and I/O peripherals. The PIC12CE519 sits within the hierarchy: 8-bit MCU -> RISC microcontroller -> PIC microcontroller -> Microchip PIC12 family -> PIC12C5xx sub-family -> CMOS embedded controller. Its Harvard RISC architecture executes 33 single-word, single-cycle instructions, simplifying firmware development and reducing code overhead compared to accumulator-based 8-bit designs.
Key features include six general-purpose I/O pins with 25 mA source/sink drive capability, internal 4 MHz RC oscillator with programmable calibration, power-on reset (POR), watchdog timer, and an on-chip 16-byte EEPROM data memory that survives power cycling without external storage. Wide operating voltage from 2.5 V to 5.5 V supports both 3.3 V and 5 V rails, and the extended (-40C to +125C) operating temperature range suits industrial and automotive under-hood environments.
The PIC12CE519 uses a 14-bit instruction word and Harvard bus architecture, allowing instruction fetch and data access to occur in the same cycle. Power management includes a low-power SLEEP mode, selectable oscillator modes (internal RC, external crystal, and external clock), and a programmable code-protection mechanism that prevents unauthorized firmware readback.
Typical applications include consumer appliance controllers, sensor signal conditioning front-ends, LED lighting drivers, automotive body electronics, and low-cost replacement of discrete logic. The PIC12CE519 is often used as a cost-down alternative to larger pin-count MCUs in space-constrained designs.
When designing with this device, ensure proper decoupling (100 nF + 10 uF) close to VDD, observe the maximum 25 mA per-pin and 90 mA per-port source/sink budgets, and select the appropriate oscillator mode based on timing accuracy requirements. Program the device using Microchip's MPLAB PM3 or ICD programmers.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the standalone manufacturer datasheet, giving engineers a one-stop procurement and engineering reference.
Drop-in alternatives for PIC12CE519-04E/SN — 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 PIC12CE519-04E/SN (same form factor and footprint) — differing in Package, Core Architecture, Operating Temperature, Program Memory Size, Program Memory Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC12CE519-04/SN
✅ Drop-In✓ In Stock
$1.05 / Unit
View Datasheet →PIC12CE519-04E/P
✅ Drop-In✓ In Stock
$1.02 / Unit
View Datasheet →PIC12CE518-04E/SN
✅ Drop-In✓ In Stock
$1.38 / Unit
View Datasheet →PIC12CE518T-04E/SN
✅ Drop-In✓ In Stock
$1.4 / Unit
View Datasheet →PIC12CE518T-04I/SN
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC12F519-I/SN
✅ Drop-In📋 Reference alternative (not in catalog)
PIC12CE519-04E/SN Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC RISC |
| Program Memory Type | OTP (One-Time-Programmable) |
| Program Memory Size | 1.5 KB (1K x 12 words) |
| Data RAM | 41 bytes |
| EEPROM Data Memory | 16 bytes |
| Maximum Clock Frequency | 4 MHz |
| Instruction Cycle Time | 1 us at 4 MHz |
| Instruction Set Size | 33 single-word instructions |
| I/O Pins | 6 |
| I/O Sink/Source Current | 25 mA per pin |
| Operating Voltage Range | 2.5 V to 5.5 V |
| Operating Temperature Range | -40C to +125C (extended) |
| Package | 8-pin SOIC (SN) |
| Mounting Type | Surface Mount |
| On-chip Oscillator | Internal 4 MHz RC, programmable calibration |
| Peripherals | Watchdog Timer, Power-on Reset, SLEEP mode |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
| RoHS Status | Compliant |
PIC12CE519-04E/SN Pin Configuration
| Pin 1 | GP5/OSC1/CLKIN — General-purpose I/O / Oscillator input / External clock input |
| Pin 2 | GP4/OSC2 — General-purpose I/O / Oscillator output |
| Pin 3 | GP3/MCLR/VPP — General-purpose I/O / Master Clear reset / Programming voltage input |
| Pin 4 | GP2/T0CKI — General-purpose I/O / Timer0 clock input |
| Pin 5 | GP1 — General-purpose I/O |
| Pin 6 | GP0 — General-purpose I/O |
| Pin 7 | VSS — Ground reference |
| Pin 8 | VDD — Positive supply voltage (2.5 V to 5.5 V) |
Typical Applications
PIC12CE519-04E/SN is suitable for 6 applications: Consumer Appliance Control, Automotive Body Electronics, LED Lighting Drivers, Sensor Signal Conditioning Front-End, Battery-Powered Remote Controls, Industrial Timing and Control Modules.
Consumer Appliance Control
The PIC12CE519-04E/SN is a strong fit for cost-sensitive consumer appliance controllers such as coffee makers, toasters, washing-machine sub-modules, and small kitchen devices where 6 I/O pins and 1.5 KB of program memory are sufficient. Its 25 mA per-pin drive directly switches LED indicators, relay coils, and triac gates without external buffers, cutting BOM cost. The on-chip 16-byte EEPROM stores user-set parameters such as brew strength or timer presets that persist through power cycles, eliminating an external EEPROM IC. With internal 4 MHz RC oscillator calibration, the device achieves better than +/-1% timing accuracy for timing-sensitive loads like motor soft-start sequences, while the extended -40C to +125C temperature range handles under-cabinet and garage-appliance thermal stress. OTP programming reduces per-unit cost versus Flash parts in high-volume production.
Recommended
Automotive Body Electronics
The PIC12CE519-04E/SN's extended -40C to +125C operating range and 25 mA I/O drive suit non-safety automotive body electronics such as ambient lighting controllers, mirror adjusters, seat-position memory switches, and accessory delay timers. Its 16-byte on-chip EEPROM is ideal for storing calibration and trim values that must survive battery disconnection. The wide 2.5 V to 5.5 V supply range tolerates automotive cranking transients down to 6 V typical rail voltages. While not AEC-Q100 qualified, the part is commonly designed into non-critical body modules where cost dominates over automotive certification. Pairing with a PIC12F509 or PIC12F519 Flash sibling allows in-line firmware updates during end-of-line testing before OTP programming is finalized for high-volume runs.
Recommended
LED Lighting Drivers
The PIC12CE519-04E/SN drives multi-channel LED fixtures and decorative lighting strips via PWM on its 6 I/O pins, each capable of 25 mA sink current to directly drive low-current indicator LEDs or interface to MOSFET gate drivers for high-power strings. Program memory of 1.5 KB accommodates color-mixing algorithms, fade tables, and DMX-style protocol handling for architectural lighting. The internal 4 MHz RC oscillator with calibration provides adequate timing accuracy for PWM frequency generation (typically 1-10 kHz) without external crystal cost. The 16-byte EEPROM stores user-configured brightness presets and color scenes that survive power-down. Wide 2.5-5.5 V operation supports both battery-powered decorative fixtures and USB-powered task lights from the same firmware image.
Recommended
Sensor Signal Conditioning Front-End
The PIC12CE519-04E/SN serves as a smart sensor front-end that digitizes analog signals via on-chip comparator-based slope conversion or external ADC interfacing, then transmits processed values via GPIO bit-banged protocols (UART, SPI, or one-wire). With 6 I/O pins it can simultaneously interface to a sensor, status LED, and communication line in a 3-wire sensor module. The 1.5 KB program memory holds linearization lookup tables and calibration routines, while the 16-byte EEPROM stores per-unit calibration coefficients written at factory test. The extended temperature range supports industrial process-control sensor pods, and the 2.5 V minimum supply enables 2xAA battery-powered wireless sensor transmitters with year-long battery life using SLEEP mode and watchdog wake-up.
Recommended
Battery-Powered Remote Controls
The PIC12CE519-04E/SN fits handheld IR/RF remote controls, key fobs, and wireless wall switches where 6 I/O pins handle a 4x3 keypad matrix plus an IR LED driver. The wide 2.5 V to 5.5 V operating voltage supports 2xAAA alkaline (3 V) or single CR2032 lithium (3 V) battery packs without a boost regulator. SLEEP mode current in the microamp range, combined with the watchdog-timer wake-up, delivers multi-year battery life for typical remote-control duty cycles. The 16-byte EEPROM stores device-pairing codes and user preferences, while 1.5 KB of OTP holds keypad scanning, IR protocol generation (RC5, NEC, SIRC), and debounce logic. OTP programming prevents accidental firmware tampering in shipped units.
Recommended
Industrial Timing and Control Modules
The PIC12CE519-04E/SN's extended -40C to +125C temperature range and wide supply range make it suitable for industrial timing relays, conveyor control sub-modules, and pump controllers in factory automation. Its 1.5 KB program memory supports PID-lite control loops and timing sequence state machines for industrial packaging machinery. The 25 mA I/O drive interfaces directly to optocouplers, small SSR triggers, and 24 V signal-conditioning circuitry common in industrial cabinets. EEPROM storage retains machine-runtime counters and last-fault codes for diagnostic retrieval, while the internal calibrated 4 MHz RC oscillator provides +/-1% timing accuracy adequate for sequencing without an external crystal. OTP programming secures proprietary control algorithms against unauthorized duplication.
Recommended
Recommended Products Summary
Engineering reference data for PIC12CE519-04E/SN — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC12CE519-04/SN | PIC12CE519-04E/P | PIC12CE518-04E/SN | PIC12CE518T-04E/SN | PIC12F519-I/SN |
|---|---|---|---|---|---|---|
| Package | 8-SOIC (SN) | 8-SOIC (SN) - same | 8-PDIP (P) - same die, different mount | 8-SOIC (SN) - same | 8-SOIC (SN) - same | 8-SOIC (SN) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory Size | 1.5 KB (1K x 12) OTP | 1.5 KB OTP - identical | 1.5 KB OTP - identical | 0.75 KB OTP - smaller | 0.75 KB OTP - smaller | 1.5 KB Flash - re-programmable |
| Memory Type | OTP | OTP | OTP | OTP | OTP | Flash |
| Data RAM | 41 bytes | 41 bytes - identical | 41 bytes - identical | 41 bytes - identical | 41 bytes - identical | 41 bytes - identical |
| EEPROM Data Memory | 16 bytes | 16 bytes - identical | 16 bytes - identical | 16 bytes - identical | 16 bytes - identical | 16 bytes - identical |
| Maximum Clock Frequency | 4 MHz | 4 MHz - identical | 4 MHz - identical | 4 MHz - identical | 4 MHz - identical | 4 MHz - identical |
| Operating Temperature Range | -40C to +125C (Extended) | 0C to +70C (Commercial) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +85C (Industrial) |
| I/O Pins | 6 | 6 - identical | 6 - identical | 6 - identical | 6 - identical | 6 - identical |
| I/O Sink/Source Current | 25 mA per pin | 25 mA - identical | 25 mA - identical | 25 mA - identical | 25 mA - identical | 25 mA - identical |
Key Differentiators
- On-chip 16-byte EEPROM for persistent user data (vs PIC12C509A-04E/SN)
- Drop-in Flash-based development twin available (vs PIC12F519-I/SN)
- Wider operating voltage than PIC12C509 family (vs PIC12C509A-04E/SN)
Design Notes
Place a 100 nF ceramic decoupling capacitor as close as possible to the VDD pin (pin 8) and a bulk 10 uF tantalum or ceramic capacitor on the same supply trace. The PIC12CE519's internal POR requires VDD to rise monotonically; if your power supply has slow rise times or significant ripple, add an external supervisory circuit or RC delay to ensure clean startup. The internal 4 MHz RC oscillator draws approximately 1 mA additional current; switch to SLEEP mode with watchdog wake-up for battery applications to reduce average current to under 10 uA.
Route the GP3/MCLR/VPP pin to a dedicated test pad or programming header even if MCLR is configured as a digital input in firmware. ICSP programming requires VPP (typically 13 V) on this pin, and adding the pad after PCB fabrication requires rework. Keep the GP4/OSC2 trace short if using an external crystal to avoid clock corruption. For SOIC packages, use a fine-pitch (0.5 mm) tip on your soldering iron and avoid prolonged heat exposure; the 8-SOIC's small thermal mass can lift pads if hand-soldered above 350C for more than 3 seconds per pin.
OTP memory cannot be erased or reprogrammed; once a PIC12CE519 is programmed, any firmware bug becomes a scrap unit. Mitigate by developing on a Flash equivalent (PIC12F519-I/SN, same footprint) and locking down firmware before committing to OTP programming. Do not exceed 25 mA per pin or 90 mA total port source/sink, as the part has no internal current limiting and exceeding ratings will cause metal migration and early failure. The GP3 pin is input-only by default - do not configure it as an output. Code-protect bits should be set for production units to prevent firmware readback, but remember this also prevents verification of programmed devices.
Compliance Information
RoHS and REACH compliance per Microchip product page. Not AEC-Q100 qualified - automotive designs should validate under customer-specific qualification protocols. Lead-free (Pb-free) matte-tin finish per JEDEC J-STD-020.
