PIC12CE519T-04I/SM - 8-bit MCU, 1.5KB OTP, 4MHz, 8-SOIJ | Microchip
MPN: PIC12CE519T-04I/SM ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $1.69 | $1.69 |
| 10 | $1.55 | $15.50 |
| 100 | $1.38 | $138.00 |
| 500 | $1.18 | $590.00 |
| 1,000 | $1.02 | $1,020.00 |
PIC12CE519T-04I/SM Overview
A PIC microcontroller (MCU) is a compact, low-power programmable processor built around a RISC (Reduced Instruction Set Computer) architecture. PIC MCUs sit within the broader hierarchy of microcontrollers -> embedded processors -> semiconductors, and the PIC12C5xx series specifically targets space-constrained, cost-sensitive applications where minimal external components and low pin count are critical. Unlike flash-based MCUs, OTP devices are programmed once and cannot be erased, making them ideal for high-volume, fixed-function products.
Key features include a 200ns instruction execution time, an 8-bit real-time clock/counter (TMR0) with programmable prescaler, power-on reset (POR), device reset timer (DRT), watchdog timer (WDT) with its own on-chip RC oscillator, programmable code protection, and 1,000,000 erase/write cycle endurance on internal EEPROM. The device supports an operating voltage range of 3.0V to 5.5V typical and consumes very low standby current.
The PIC12CE519 employs a RISC-based Harvard architecture with only 33 single-word instructions, simplifying firmware development. Its integrated EEPROM (16 bytes) supports non-volatile data storage, and the internal 4MHz RC oscillator eliminates the need for an external crystal in many designs, reducing BOM cost and PCB area. The 6 GPIO pins can be individually configured for digital I/O.
Typical applications include consumer electronics (remote controls, toys), appliance controls, LED lighting controllers, sensor signal conditioning, battery-powered devices, and low-cost replacement of discrete logic. The SOIJ-8 footprint suits compact handheld products.
When designing with this MCU, note that OTP memory cannot be reprogrammed in-circuit - firmware bugs require board replacement. Ensure the internal RC oscillator accuracy meets timing requirements, or budget for an external clock source.
This page synthesizes distributor pricing, drop-in alternative inventory, and practical design guidance for the PIC12CE519T-04I/SM beyond what the manufacturer datasheet alone provides.
Drop-in alternatives for PIC12CE519T-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 PIC12CE519T-04I/SM (same form factor and footprint) — differing in Program Memory Size, Program Memory Type, Core Architecture, Operating Temperature Range, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC12CE519-04I/SM
✅ Drop-In✓ In Stock
$1.74 / Unit
View Datasheet →PIC12CE519T-04I/SN
✅ Drop-In📋 Reference alternative (not in catalog)
PIC12CE518T-04I/SN
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC12CE518-04E/SM
✅ Drop-In✓ In Stock
$1.6 / Unit
View Datasheet →PIC12C509A-04I/SM
✅ Drop-In✓ In Stock
$0.93 / Unit
View Datasheet →PIC12CE519T-04I/SM Maximum Ratings & Electrical Characteristics
| Core Processor | PIC |
| Core Size | 8-bit |
| Program Memory Size | 1.5 KB (1K x 12) |
| Program Memory Type | OTP (One-Time Programmable) |
| RAM Size | 41 bytes |
| EEPROM Size | 16 bytes |
| Number of I/O Pins | 6 |
| Maximum Clock Frequency | 4 MHz |
| Instruction Cycle Time | 200 ns |
| Supply Voltage Range | 3.0 V to 5.5 V |
| Operating Temperature Range | -40 C to +85 C (Industrial) |
| Package | 8-SOIJ (5.30 mm body width) |
| Mounting Type | Surface Mount |
| Oscillator Type | Internal RC (4 MHz) |
| Peripherals | POR, WDT, TMR0 |
| Number of Instructions | 33 single-word |
| RoHS Status | Compliant |
PIC12CE519T-04I/SM Pin Configuration
| Pin 1 | GP5/OSC1/CLKIN — General-purpose I/O / oscillator input / external clock input |
| Pin 2 | GP4/OSC2/CLKOUT — General-purpose I/O / oscillator output / clock output |
| Pin 3 | GP3/MCLR/VPP — General-purpose I/O / master clear reset (active low) / programming voltage |
| Pin 4 | VSS — Ground reference |
| Pin 5 | GP0 — General-purpose I/O bit 0 |
| Pin 6 | GP1 — General-purpose I/O bit 1 |
| Pin 7 | GP2/T0CKI — General-purpose I/O / Timer0 clock input |
| Pin 8 | VDD — Positive supply voltage (3.0V to 5.5V) |
Typical Applications
PIC12CE519T-04I/SM is suitable for 6 applications: Consumer Remote Controls, Battery-Powered Sensor Nodes, LED Lighting Controllers, Appliance Control Boards, Toys and Educational Electronics, Automotive Accessory Controllers.
Consumer Remote Controls
The PIC12CE519T-04I/SM is well-suited for infrared remote control transmitters used in TVs, set-top boxes, and audio equipment. Its 4MHz internal RC oscillator eliminates the need for an external crystal, reducing BOM cost. The 6 GPIO pins directly drive IR LED drivers and scan matrix keypads. With OTP memory at $0.71 unit pricing, this MCU minimizes cost in high-volume consumer products where firmware is finalized and code protection prevents reverse engineering of proprietary IR protocols.
Recommended
Battery-Powered Sensor Nodes
For wireless sensor nodes and IoT edge devices, the PIC12CE519T-04I/SM's 3.0V-5.5V operating range supports direct connection to 2-3 AA cells or coin cell batteries. The low standby current and internal RC oscillator minimize quiescent drain, extending battery life to multiple years. The 6 GPIO pins interface with temperature, humidity, or motion sensors, while the integrated TMR0 with prescaler handles periodic wake-up and timing functions for duty-cycled measurement protocols.
Recommended
LED Lighting Controllers
The PIC12CE519T-04I/SM drives decorative LED lighting controllers, fairy lights, and indicator lamps in consumer products. Its 200ns instruction cycle enables smooth PWM dimming via software, while the 6 GPIO pins multiplex multiple LED channels or drive MOSFET gate drivers for higher-current strings. The OTP memory and code protection prevent cloning of proprietary lighting patterns, which is valuable for branded decorative products and seasonal lighting sold in millions of units annually.
Recommended
Appliance Control Boards
In white goods and small appliances like coffee makers, toasters, and fans, the PIC12CE519T-04I/SM replaces discrete logic and timer ICs with a programmable solution. The industrial temperature range (-40C to +85C) handles under-cabinet kitchen environments. The 1.5KB OTP stores appliance state machines, the WDT guards against software lockup, and the internal oscillator keeps the BOM minimal. This MCU is commonly found in cost-engineered products with 100K+ unit annual production runs.
Recommended
Toys and Educational Electronics
The PIC12CE519T-04I/SM powers low-cost electronic toys, educational kits, and hobby projects where the sub-$1 unit price enables aggressive retail pricing. Its 33-instruction RISC architecture is approachable for beginners learning embedded programming, while the 6 I/O pins drive simple outputs like buzzers, LEDs, and small DC motors via H-bridge drivers. The PIC12C5xx family is extensively documented in Microchip application notes, making it a teaching staple in universities and maker spaces.
Recommended
Automotive Accessory Controllers
For non-safety automotive accessories such as interior lighting, seat heaters, and decorative controllers, the PIC12CE519T-04I/SM serves as a low-cost logic replacement. While not AEC-Q100 qualified, it is used in non-critical accessory applications where the industrial temperature range suffices. The 6 GPIO pins interface with switches, LEDs, and relay drivers, while the WDT ensures reliable recovery from electrical noise events common in 12V automotive electrical systems with proper external protection.
Recommended
Recommended Products Summary
Engineering reference data for PIC12CE519T-04I/SM — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC12CE519-04I/SM | PIC12CE519T-04I/SN | PIC12CE518T-04I/SN | PIC12CE518-04E/SM | PIC12C509A-04I/SM |
|---|---|---|---|---|---|---|
| Package | 8-SOIJ (SM) | 8-SOIJ (SM) - same | 8-SOIC (SN) - different body | 8-SOIC (SN) - different body | 8-SOIJ (SM) - same | 8-SOIJ (SM) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 1.5 KB OTP | 1.5 KB OTP | 1.5 KB OTP | 0.75 KB OTP (-50%) | 0.75 KB OTP (-50%) | 1.5 KB OTP |
| RAM | 41 bytes | 41 bytes | 41 bytes | 41 bytes | 41 bytes | 41 bytes |
| Max Frequency | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| I/O Pins | 6 | 6 | 6 | 6 | 6 | 6 |
| Memory Type | OTP | OTP | OTP | OTP | OTP | OTP |
| Temperature Range | -40C to +85C (Industrial) | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C (Extended) | -40C to +85C |
Key Differentiators
- Same die in tape-and-reel vs tube packaging (vs PIC12CE519-04I/SM)
- Full 1.5KB program memory vs reduced 0.75KB variant (vs PIC12CE518T-04I/SN)
- Lower cost PIC12C509A alternative in same SOIJ-8 (vs PIC12C509A-04I/SM)
Design Notes
OTP memory on the PIC12CE519 cannot be erased - any firmware bug requires board-level rework or scrap. During development, always prototype with the JW windowed package variant (PIC12CE519/JW) for UV-erase cycles, then transition to the OTP SOIJ-8 part for production. Implement the WDT to recover from unexpected code lockup, especially in electrically noisy environments like motor control applications.
Place a 100nF decoupling capacitor as close as possible to the VDD pin (Pin 8), with a trace length under 5mm to minimize inductance. For battery applications, add a 10uF bulk capacitor near the MCU to handle transient current demands when GPIO pins switch simultaneously. The PIC12CE519's internal RC oscillator is sensitive to VDD ripple - keep analog and digital supply traces separated if mixing sensitive analog peripherals in the same design.
The 8-SOIJ package has a 5.30mm body width with J-leads underneath - ensure the PCB land pattern follows the SOIJ-8 (SM) IPC-7351 footprint with proper pad dimensions and a center thermal/exposed pad if applicable. Maintain at least 0.2mm clearance between the J-lead outline and adjacent traces to prevent solder bridging during reflow. For hand-prototyping, the SOIC-8 (SN) variant is easier to solder than SOIJ.
Route the MCLR/VPP reset pin (Pin 3) with a 10k pull-up resistor to VDD and a 100nF capacitor to ground for noise immunity, per Microchip PIC12C5xx hardware design guidelines. If using ICSP (In-Circuit Serial Programming), bring out the ICSPCLK, ICSPDAT, and MCLR/VPP signals to a programming header - these pins are shared with GP4, GP5, and GP3 respectively, so avoid permanently loading them with heavy circuitry.
Compliance Information
RoHS compliant per Microchip product page and distributor listings. Not AEC-Q100 qualified - not suitable for automotive safety-critical applications. Industrial temperature range -40C to +85C is suitable for non-automotive applications.
