PIC12CE519-04/SN - 4MHz 8-Bit OTP MCU w/ EEPROM | Microchip
MPN: PIC12CE519-04/SN ✗ Cuối đờiPIC12CE519-04/SN Tóm tắt
What is an 8-bit OTP microcontroller? An 8-bit microcontroller (MCU) is a small computer-on-a-chip with an 8-bit data path, used in embedded applications requiring low cost, low power, and deterministic real-time behavior. OTP (One-Time-Programmable) memory allows the program to be written once and retained indefinitely, which is ideal for high-volume, cost-sensitive end products that do not need firmware updates. Within the broader hierarchy, the PIC12CE519 sits at: 8-bit MCU -> PIC12 baseline -> PIC12C5xx/CE5xx sub-family, used where EEPROM-backed user data storage is required in a tiny SOIC-8 form factor.
Key features include 25 mA source/sink per I/O pin (allowing direct LED or small-transistor drive), selectable oscillator modes (internal 4 MHz RC, external RC, external crystal, and low-frequency crystal), an 8-bit timer/counter (TMR0) with an 8-bit prescaler, and a watchdog timer (WDT) with its own on-chip RC oscillator for reliable operation. The integrated 16-byte EEPROM supports up to 1M erase/write cycles, and the device operates from 2.5V to 5.5V across the commercial temperature window.
Typical applications include low-cost consumer electronics, simple sensor conditioning, household appliances (toaster/coffee timers), LED lighting controllers, remote control transmitters, IR learning devices, and any low-I/O-count embedded design needing non-volatile user parameters. When replacing legacy 8-bit designs, the 4 MHz instruction rate provides ~1 MIPS, enough to handle keypad scanning, basic PWM, and UART-style bit-banged communication.
Bộ thay thế dễ dàng lắp đặt cho PIC12CE519-04/SN — cùng gói, chân-to-chân tương thích. Các bộ phận yêu cầu hàn PCB bị loại trừ.
Các biến thể trong loạt này
Các mẫu cùng loạt có thể lắp đặt dễ dàng tương thích với PIC12CE519-04/SN (cùng hình factor và footprint) — khác nhau ở Package, Operating Temperature, Core Architecture, Timers, Program Memory Size.
PIC12F519-I/SN
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Xem tài liệu →PIC12F519T-I/SN
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC12CE518-04E/SN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12CE518T-04E/SN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12CE519-04E/SN
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12F629-I/SN
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Xem tài liệu →PIC12CE519-04/SN Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit RISC |
| Core Sub-Family | PIC12C5xx / PIC12CE5xx |
| CPU Frequency (Max) | 4 MHz |
| Program Memory Type | OTP (One-Time-Programmable) |
| Program Memory Size | 1.5 KB (1K x 12 words) |
| RAM Size | 41 bytes |
| Data EEPROM | 16 bytes |
| I/O Pins | 6 |
| I/O Source/Sink | 25 mA per pin |
| Timers | TMR0 (8-bit) with 8-bit prescaler |
| Watchdog Timer | Yes (independent on-chip RC) |
| Oscillator Options | Internal 4 MHz RC, External RC, External Crystal, LF Crystal |
| Operating Voltage | 2.5 V to 5.5 V |
| Nhiệt độ hoạt động | 0 C to +70 C (Commercial) |
| Hộp | SOIC-8 (SN, 150 mil) |
| Instruction Set Width | 12-bit |
| Power-on Reset | Yes |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC12CE519-04/SN
| Chân 1 | GP5/OSC1/CLKIN — Bidirectional I/O; oscillator input or external clock input |
| Chân 2 | GP4/OSC2/CLKOUT — Bidirectional I/O; oscillator output or clock output |
| Chân 3 | GP3/MCLR/VPP — Input-only I/O; Master Clear reset (active low) or programming voltage input |
| Chân 4 | GP2/T0CKI/INT — Bidirectional I/O; Timer0 clock input or external interrupt |
| Chân 5 | GP1/CIN-/ICSPCLK — Bidirectional I/O; comparator inverting input or ICSP clock |
| Chân 6 | GP0/CIN+/ICSPDAT — Bidirectional I/O; comparator non-inverting input or ICSP data |
| Chân 7 | VSS — Ground reference |
| Chân 8 | VDD — Positive supply voltage (2.5 V to 5.5 V) |
Ứng dụng tiêu biểu
PIC12CE519-04/SN phù hợp cho 6 Áp dụngs: Consumer Appliance Timers, IR Remote Control Transmitters, LED Lighting Controllers, Low-Cost Sensor Signal Conditioning, Security and Accessory Controllers, Automotive Accessory Modules (Non-Safety).
Consumer Appliance Timers
The PIC12CE519-04/SN suits low-cost household appliances like toaster and coffee-maker timers where 1.5 KB of OTP code is sufficient for state-machine control and where the on-chip 16-byte EEPROM stores user-set toast darkness or brew strength. At 4 MHz the part delivers ~1 MIPS, enough to debounce a keypad, drive a 7-segment display, and emit relay-control pulses within tight timing budgets. The integrated POR and WDT eliminate external reset supervisors, reducing BOM cost on a sub-$1 controller slot.
Được đề xuất
IR Remote Control Transmitters
The PIC12CE519-04/SN is a strong fit for handheld IR remote controls: 6 I/O pins support a 3x4 or 4x4 matrix keypad plus a single IR-LED driver, and the 25 mA source/sink per pin can drive a TSAL6200-style IR LED directly without a buffer transistor. Internal 4 MHz RC oscillator avoids an external resonator, saving board area and cost. The 16-byte EEPROM retains last-channel preferences across battery changes, while OTP program memory secures the protocol firmware against unauthorized clones.
Được đề xuất
LED Lighting Controllers
For low-channel-count decorative or accent LED drivers, the PIC12CE519-04/SN's 6 high-drive I/O pins (25 mA each) can sink RGB channels directly with no external transistors, and the 4 MHz core supports bit-banged WS2812-style or simple PWM dimming at modest update rates. OTP memory is acceptable because the color sequences are fixed at production; the on-chip EEPROM stores user brightness/scene presets. A 2.5V to 5.5V operating range supports both 3.3V and 5V LED strings from a small linear regulator.
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Low-Cost Sensor Signal Conditioning
The PIC12CE519-04/SN can replace simple analog signal-conditioning circuits by digitizing sensor outputs through a comparator (CIN+/CIN- on GP0/GP1) and applying threshold logic in firmware. Operating at 4 MHz, the part executes threshold comparisons in under a microsecond, well below the response time of most slow-changing sensors (temperature, humidity, soil moisture). The integrated 16-byte EEPROM records calibration offsets per unit at factory trim, while the small SOIC-8 footprint fits inside probe housings.
Được đề xuất
Security and Accessory Controllers
Door-bell chimes, simple alarm keypads, and garage-door accessory controllers benefit from the PIC12CE519-04/SN's 6 I/O pins, internal watchdog timer, and Power-on Reset. The watchdog catches firmware lockups in unattended installations, and the 16-byte EEPROM stores installer codes or zone configurations. The SOIC-8 footprint plus 2.5V to 5.5V supply range fit easily on a small accessory PCB powered from a battery or wall adapter, and the low OTP cost enables sub-$2 bill-of-materials.
Được đề xuất
Automotive Accessory Modules (Non-Safety)
For non-safety automotive accessories (interior LED modules, vanity mirror controllers, simple switch panels), the extended-temperature PIC12CE519-04E/SN variant offers -40C to +125C operation in the same SOIC-8 footprint. The 4 MHz internal oscillator and on-chip EEPROM keep the BOM to a minimum, while the 25 mA I/O drives small relays and indicator LEDs directly. Designers should still verify AEC-Q100 qualification requirements for the specific subsystem - this part family is not broadly AEC-Q100 listed.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC12CE519-04/SN — so sánh, hướng dẫn thiết kế và thông tin tuân thủ.
Hướng dẫn chọn lựa
So sánh với các sản phẩm thay thế
| Tham số | Sản phẩm này | PIC12F519-I/SN | PIC12F519T-I/SN | PIC12CE518-04E/SN | PIC12CE518T-04E/SN | PIC12CE519-04E/SN | PIC12F629-I/SN |
|---|---|---|---|---|---|---|---|
| Package | SOIC-8 (SN, 150 mil) | SOIC-8 (SN, 150 mil) - same | SOIC-8 (SN, 150 mil) - same | SOIC-8 (SN, 150 mil) - same | SOIC-8 (SN, 150 mil) - same | SOIC-8 (SN, 150 mil) - same | SOIC-8 (SN, 150 mil) - same |
| Brand | Microchip Technology | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same | Microchip Technology - same |
| Program Memory | 1.5 KB OTP | 1.5 KB Flash | 1.5 KB Flash | 0.75 KB OTP | 0.75 KB OTP | 1.5 KB OTP | 1.75 KB Flash |
| Data EEPROM | 16 bytes | 16 bytes | 16 bytes | None | None | 16 bytes | 128 bytes |
| CPU Frequency | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz |
| Operating Temperature | 0 C to +70 C | -40 C to +85 C | -40 C to +85 C | -40 C to +125 C | -40 C to +125 C | -40 C to +125 C | -40 C to +85 C |
| I/O Pins | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
| Memory Type | OTP (one-time) | Flash (reprogrammable) | Flash (reprogrammable) | OTP | OTP | OTP | Flash (reprogrammable) |
Bảo phân biệt quan trọng
- On-chip 16-byte EEPROM with 1M erase/write endurance (vsPIC12CE518-04E/SN)
- Flash memory reprogrammability (vsPIC12F519-I/SN)
- 25 mA I/O drive without external buffers (vsPIC12F629-I/SN)
Ghi chú thiết kế
The PIC12CE519-04/SN operates from 2.5 V to 5.5 V. Decouple VDD (pin 8) with a 100 nF X7R ceramic capacitor placed within 5 mm of the pin, and add a bulk 10 uF aluminum-polymer capacitor on the same rail if the supply comes from a switching regulator. Internal POR holds the part in reset until VDD reaches the safe threshold (~1.5 V), but a slow-rising supply can cause incomplete initialization - add a diode-clamped RC on MCLR if the supply rise time exceeds 100 ms.
Keep the oscillator traces short and surround the XTAL or resonator with a ground guard ring to reduce EMI pickup. When using the internal 4 MHz RC oscillator, no external components are needed but verify the calibrated frequency across voltage and temperature - Microchip's datasheet specifies calibration to within +/- 1 percent at 5 V and +25 C. For ICSP programming, route ICSPCLK (GP1) and ICSPDAT (GP0) to a 2-pin header without series resistors so the programmer can drive them directly.
GP3 is input-only; attempting to configure it as an output will read back 0 and may cause unexpected behavior in firmware relying on TRISIO reads. The MCLR pin (GP3/VPP) must NOT be left floating - either tie it to VDD through a 10 kohm resistor for normal operation, or connect it directly to the ICSP header for in-circuit programming. Writing to on-chip EEPROM without checking the WR bit can corrupt data; always poll WR or use the recommended EEIF interrupt sequence from the datasheet.
Thông tin tuân thủ
RoHS compliance per Microchip product declaration and distributor listings. Not AEC-Q100 qualified; the PIC12CE519-04E/SN extended-temperature variant is not AEC-Q100 either. Halogen-free status not explicitly stated in the datasheet; confirm with Microchip before shipping into regions requiring halogen-free evidence.
