PIC12CE673-04/P - 8-bit 4MHz MCU, 1.75KB OTP, 8-PDIP | Microchip
MPN: PIC12CE673-04/P ✗ Cuối đờiPIC12CE673-04/P Tóm tắt
An 8-bit microcontroller (MCU) is a small, self-contained computing element that executes a reduced instruction set on 8-bit-wide data; it sits inside the broader taxonomy of microcontrollers -> embedded processors -> semiconductors. The PIC12C67X/CE67X family specifically targets cost- and pin-constrained applications where a tiny footprint, low part count, and integrated analog peripherals remove the need for external components. This product belongs to Microchip's classic PIC12 baseline/mid-range family.
Key features of the PIC12CE673-04/P include 1.75 KB OTP program memory, 128 bytes RAM, 16 bytes EEPROM, a 4-channel 8-bit A/D converter, a watchdog timer with its own on-chip RC oscillator, an 8-bit timer/counter with programmable prescaler, and an internal 4 MHz RC oscillator option that can eliminate the external crystal. Power-saving SLEEP mode and an MCLR reset pin round out the feature set.
Architecturally, the PIC12CE673-04/P uses a Harvard RISC core with separate program and data buses; instructions are fetched in parallel with operand reads, which gives deterministic 400 ns instruction execution at 10 MHz (or 1 us at 4 MHz for the -04 grade). CMOS static design allows the clock to be stopped without losing register contents, enabling ultra-low standby current in SLEEP mode.
Typical applications include appliance controls, battery chargers, sensor-interface modules, simple security keypads, and any low-cost embedded product where a full MCU is overkill but a few discrete logic chips cannot deliver the required functionality. Microchip recommends considering PIC12F675 as a newer-generation migration path with Flash memory and enhanced peripherals.
When designing with this part, note that the -04 speed grade limits the oscillator input to 4 MHz; for higher throughput the -10 variant is required. The OTP program memory cannot be reprogrammed in-circuit, so firmware must be fully validated before commitment to production.
This page synthesizes current distributor pricing, drop-in alternatives within the same PDIP-8 footprint, and practical design notes not consolidated in the manufacturer datasheet, providing unique procurement and engineering value for sourcing teams.
Bộ thay thế dễ dàng lắp đặt cho PIC12CE673-04/P — 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 PIC12CE673-04/P (cùng hình factor và footprint) — khác nhau ở Package, I/O Pins, Operating Temperature, Timers, Program Memory Size.
PIC12CE673-04I/P
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC12CE673-10/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12CE674-04/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12CE518-04/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12F675-I/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12C671-04/P
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC12CE673-04/P Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit RISC (Harvard) |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 1.75 KB (1K x 14) |
| Data RAM | 128 bytes |
| EEPROM Data Memory | 16 bytes |
| Tần số xung maksimum | 4 MHz |
| Instruction Cycle Time | 1 us at 4 MHz |
| Instruction Set | 35 single-word instructions |
| I/O Pins | 5 digital I/O + 1 input-only |
| A/D Converter | 4-channel, 8-bit |
| Timers | 1 x 8-bit timer/counter with prescaler + WDT |
| Operating Voltage Range | 2.5 V to 5.5 V |
| Hộp | 8-pin PDIP (0.300 inch, 7.62 mm) |
| Kiểu lắp đặt | Through-Hole |
| Nhiệt độ hoạt động | 0C to +70C (commercial) |
| Speed Grade Suffix | -04 (4 MHz max) |
| Trạng thái RoHS | Compliant (lead-free PDIP marking varies) |
Cấu hình chân PIC12CE673-04/P
| Chân 1 | MCLR/VPP/RA5 — Master Clear (reset, active low) / Programming voltage / input-only RA5 |
| Chân 2 | RA0/AN0 — Digital I/O RA0 / analog input AN0 |
| Chân 3 | RA1/AN1 — Digital I/O RA1 / analog input AN1 |
| Chân 4 | RA2/AN2 — Digital I/O RA2 / analog input AN2 |
| Chân 5 | VSS — Ground reference |
| Chân 6 | RA3/AN3 — Digital I/O RA3 / analog input AN3 |
| Chân 7 | RA4/OSC2/CLKOUT — Digital I/O RA4 / oscillator output / clock output |
| Chân 8 | VDD — Positive supply voltage (2.5 V to 5.5 V) |
Ứng dụng tiêu biểu
PIC12CE673-04/P phù hợp cho 6 Áp dụngs: Appliance Control Boards, Battery-Powered Sensor Modules, Simple Security Keypads, Battery Charger Controllers, Hobby and Educational Projects, Industrial Sensor Interface Modules.
Appliance Control Boards
The PIC12CE673-04/P fits appliance control boards because its 8-pin PDIP form factor and integrated 4-channel 8-bit A/D let it read thermistor or potentiometer inputs without external ADC chips. Its 1.75 KB OTP memory is sufficient for fixed-function appliance firmware such as fan-speed controllers, coffee-machine user interfaces, and microwave keypad readers. The device's 4 MHz instruction rate delivers 1 MIPS, enough for relay timing and simple state-machine sequencing, while 16 bytes of EEPROM stores user-setpoints across power cycles.
Được đề xuất
Battery-Powered Sensor Modules
For battery-powered sensor modules, the PIC12CE673-04/P is a strong fit because it supports a wide 2.5 V to 5.5 V supply range and consumes only microamps in SLEEP mode, allowing long battery life with intermittent wake-and-measure duty cycles. The 4-channel 8-bit A/D multiplexes temperature, light, or voltage sensors into a single MCU, while 128 bytes of RAM is adequate for short moving averages and threshold decisions. Compared with PIC12F675-I/P, this part lacks Flash reprogrammability but costs slightly less at low volumes.
Được đề xuất
Simple Security Keypads
The PIC12CE673-04/P suits simple security keypads because its 5 I/O pins can matrix-scan a 12-key or 16-key pad directly, and the 16-byte EEPROM stores PIN codes and lockout counters. SLEEP-mode current in the microamp range preserves battery life on wireless door-keypads, and the watchdog timer guards against code lockup. Microchip's baseline PIC instruction set is small enough that custom keypad firmware fits in 1.75 KB OTP with room for beep-pattern generation.
Được đề xuất
Battery Charger Controllers
In single-cell NiMH or lead-acid battery charger controllers, the PIC12CE673-04/P delivers precise PWM duty control through its 8-bit timer, while the 4-channel A/D monitors voltage, current, and temperature for CC/CV charge profile transitions. The 16-byte EEPROM is suitable for storing calibration constants and charge-cycle counters. Operating at 4 MHz gives deterministic loop timing without jitter, which is important for accurate end-of-charge detection on lithium chemistries.
Được đề xuất
Hobby and Educational Projects
The PIC12CE673-04/P is a popular teaching MCU because the PIC architecture is documented in countless textbooks and tutorials, and the 8-pin PDIP is breadboard-friendly. Its 1.75 KB OTP, while not reprogrammable, encourages good firmware-version-control discipline in coursework. The integrated A/D and EEPROM let students learn analog sampling and non-volatile storage in a single chip, and the 35-instruction RISC core is approachable for assembly-language teaching.
Được đề xuất
Industrial Sensor Interface Modules
Industrial sensor-interface modules leverage the PIC12CE673-04/P's small footprint and integrated A/D to condition 4-20 mA loop signals or 0-10 V analog sensors into digital readings. The 8-bit A/D resolution is sufficient for non-precision monitoring (level, pressure, humidity indicators), while 16 bytes of EEPROM stores calibration trim per channel. The industrial-grade variant PIC12CE673-04I/P extends the operating range to -40C to +85C, allowing deployment in factory-floor enclosures.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC12CE673-04/P — 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 | PIC12CE673-04I/P | PIC12CE673-10/P | PIC12CE674-04/P | PIC12F675-I/P | PIC12C671-04/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 8-PDIP (0.300 inch) | 8-PDIP - same | 8-PDIP - same | 8-PDIP - same | 8-PDIP - same | 8-PDIP - same |
| Program Memory | 1.75 KB OTP | 1.75 KB OTP | 1.75 KB OTP | 3.5 KB OTP | 1.75 KB Flash | 1.75 KB OTP |
| Max Clock Frequency | 4 MHz | 4 MHz | 10 MHz | 4 MHz | 20 MHz | 4 MHz |
| EEPROM Data Memory | 16 bytes | 16 bytes | 16 bytes | 16 bytes | 128 bytes (Flash-emulated) | 0 bytes |
| A/D Converter | 4-channel 8-bit | 4-channel 8-bit | 4-channel 8-bit | 4-channel 8-bit | 4-channel 10-bit + comparator | 4-channel 8-bit |
| Operating Temperature | 0C to +70C (commercial) | -40C to +85C (industrial) | 0C to +70C (commercial) | 0C to +70C (commercial) | -40C to +85C (industrial) | 0C to +70C (commercial) |
| Lifecycle Status | NRND | NRND | NRND | NRND | Active (recommended) | NRND |
Bảo phân biệt quan trọng
- Integrated EEPROM data memory in 8-pin PDIP (vsPIC12C671-04/P)
- Modern Flash-based upgrade path in identical footprint (vsPIC12F675-I/P)
- Industrial-temperature variant available (vsPIC12CE673-04I/P)
Ghi chú thiết kế
Estimated: at VDD=5 V and 4 MHz active clock, typical operating current is 2-5 mA. Place a 100 nF decoupling capacitor as close as possible to pin 8 (VDD) and a bulk 10 uF electrolytic nearby; the PIC12CE673's analog references are sensitive to VDD ripple, especially when the A/D converter samples at high source impedance. For battery applications, leverage SLEEP mode aggressively - this drops quiescent current to <1 uA while retaining RAM and EEPROM contents.
The 8-pin PDIP package allows generous routing tolerances, but keep the crystal or resonator traces (pins 15-16 area if migrated to PIC16 pinout parts, or RA4/OSC2 pin 7 here) short to reduce stray capacitance. Leave space for an MCLR pull-up resistor (typically 10 kohm) and a programming-header footprint so the OTP device can be programmed in-circuit during prototyping. The exposed die-attach paddle is not present on PDIP, so no thermal pad is required.
Common pitfalls include: (1) forgetting the MCLR pin requires a valid logic-high for normal operation - if left floating, the device will randomly reset; (2) the -04 suffix limits the oscillator to 4 MHz, so designers upgrading to -10 firmware without changing speed-grade will fail; (3) OTP memory cannot be reprogrammed - plan for code-banking or migrate to PIC12F675-I/P if field updates are required; (4) RA5 is input-only, so attempting to drive it as output will not work and may damage the part over time.
Thông tin tuân thủ
RoHS compliant per Microchip product page. Not AEC-Q100 qualified - this is a commercial-grade MCU intended for industrial and consumer applications, not automotive. Lead-free PDIP termination.
