PIC16CE625T-20/SO - 8-Bit 20MHz MCU 3.5KB OTP | Microchip
MPN: PIC16CE625T-20/SO ✓ Hoạt độngPIC16CE625T-20/SO Tóm tắt
A microcontroller (MCU) is a single-chip computer containing a CPU core, non-volatile program memory, working RAM, and programmable I/O peripherals. The PIC16CE625 belongs to the PICmicro mid-range family of 8-bit microcontrollers, which historically dominated low-power and cost-sensitive embedded designs. OTP program memory means the device is programmed once at production and is non-erasable, distinguishing it from flash-based PIC16F variants; this positioning makes PIC16CE625 ideally suited for high-volume consumer and industrial applications where cost per unit is paramount and in-field firmware updates are not required.
Key features include 13 programmable digital I/O pins with independent direction control, an internal 4 MHz calibrated RC oscillator, an external oscillator option up to 20 MHz, a 10-bit analog comparator module, a programmable 8-bit timer/counter (TMR0) with 8-bit prescaler, a 16-bit timer/counter (TMR1), and a Watchdog Timer with its own on-chip RC oscillator for reliable operation. The device supports a wide 2.5V to 5.5V supply range, hardware USART/SCI, and includes in-circuit serial programming (ICSP) capability via two dedicated pins, enabling programming after PCB solder. CMOS technology keeps typical active current under 2 mA at 5V/4 MHz and standby current in the microamp range.
Typical applications include appliance control boards, sensor signal conditioning front-ends with on-chip comparator, simple user-interface controllers (LED drivers, keypads), low-cost motor drivers for small DC fans and solenoids, and battery-powered portable instruments where the EEPROM data memory can store user settings and calibration values. The 18-SOIC wide-body package allows hand-soldering and rework while still providing compactness.
When designing with PIC16CE625T-20/SO, select an external clock source that matches the application's timing budget; the 20 MHz ceiling delivers 5 MIPS but increases power dissipation versus 4 MHz operation. Always reserve the ICSPDAT/ICSPCLK pins for in-circuit programming access, and ensure the MCLR pin has the proper pull-up configuration. This page consolidates distributor pricing, drop-in alternatives, and practical engineering guidance not present in the manufacturer datasheet alone.
Bộ thay thế dễ dàng lắp đặt cho PIC16CE625T-20/SO — 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 PIC16CE625T-20/SO (cùng hình factor và footprint) — khác nhau ở Package, Timers, Program Memory Size, Program Memory Type, Maximum Clock Frequency.
PIC16CE625T-20E/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16CE625T-20I/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16CE625-20/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16CE625T-04I/SO
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16CE625-04E/SO
✅ Drop-In ⚠️ Thông số chưa được xác minhLiên hệ để biết giá
Xem tài liệu →PIC16F630-I/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16CE625T-20/SO Tỷ lệ tối đa & tính chất điện
| Core Architecture | PIC 8-bit RISC |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 3.5 KB (2K x 14) |
| Data EEPROM | 128 bytes |
| Data RAM | 128 bytes |
| Tần số xung maksimum | 20 MHz |
| Instruction Cycle Time | 200 ns (single cycle) |
| Instruction Set | 35 single-word instructions |
| Supply Voltage Range | 2.5 V to 5.5 V |
| I/O Pins | 13 |
| Timers | TMR0 (8-bit), TMR1 (16-bit) |
| Analog Comparator | Yes, 10-bit |
| Internal Oscillator | 4 MHz calibrated RC |
| Hộp | 18-SOIC (0.295 inch / 7.50 mm body width) |
| Kiểu lắp đặt | Surface Mount |
| Nhiệt độ hoạt động | 0C to +70C (commercial) |
| ICSP (In-Circuit Serial Programming) | Yes |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16CE625T-20/SO
| Chân 1 | RA2 — Port A bit 2 (digital I/O or analog comparator output) |
| Chân 2 | RA3 — Port A bit 3 (digital I/O, also MCLR alternative) |
| Chân 3 | RA4 — Port A bit 4 (digital I/O, T0CKI clock input) |
| Chân 4 | RA5 — Port A bit 5 (digital I/O, OSC1 alternate) |
| Chân 5 | VSS — Ground reference |
| Chân 6 | RB0 — Port B bit 0 (digital I/O, INT interrupt) |
| Chân 7 | RB1 — Port B bit 1 (digital I/O) |
| Chân 8 | RB2 — Port B bit 2 (digital I/O) |
| Chân 9 | RB3 — Port B bit 3 (digital I/O) |
| Chân 10 | RB4 — Port B bit 4 (digital I/O, interrupt-on-change) |
| Chân 11 | RB5 — Port B bit 5 (digital I/O, interrupt-on-change) |
| Chân 12 | RB6 — Port B bit 6 (ICSPCLK clock for in-circuit serial programming) |
| Chân 13 | RB7 — Port B bit 7 (ICSPDAT data for in-circuit serial programming) |
| Chân 14 | VDD — Positive supply voltage (2.5V to 5.5V) |
| Chân 15 | OSC2 — Oscillator output (also RA6 alternate on some versions) |
| Chân 16 | OSC1 — Oscillator input (also RA7 alternate on some versions) |
| Chân 17 | RA0 — Port A bit 0 (digital I/O or analog comparator input) |
| Chân 18 | RA1 — Port A bit 1 (digital I/O or analog comparator input) |
Ứng dụng tiêu biểu
PIC16CE625T-20/SO phù hợp cho 6 Áp dụngs: Appliance Control Boards, Sensor Signal Conditioning Front-Ends, User Interface Controllers (LEDs, Keypads), Low-Cost Motor Drivers (Small DC Fans, Solenoids), Battery-Powered Portable Instruments, Security and Access Control Panels.
Appliance Control Boards
The PIC16CE625T-20/SO fits appliance control boards (washing machines, dishwashers, microwave ovens) because its 3.5 KB OTP memory holds fixed control firmware, 13 I/O pins drive relays and keypads, and the 20 MHz CPU delivers responsive real-time loop execution. The 128-byte EEPROM stores user-set cycles and calibration values that survive power cycles. Its industrial-grade noise immunity and 2.5V-5.5V supply range accommodate the noisy motor environment typical of household appliances.
Được đề xuất
Sensor Signal Conditioning Front-Ends
The PIC16CE625T-20/SO suits analog sensor front-ends where the on-chip 10-bit analog comparator thresholds and conditions signals from thermocouples, photodiodes, or capacitive touch electrodes. Its 20 MHz throughput enables up to 5 MIPS for digital filtering of the conditioned signal, while 128 bytes of RAM hold intermediate filter state. The 128-byte EEPROM retains calibration constants across power cycles, critical for accurate sensor readings in field-deployed instruments.
Được đề xuất
User Interface Controllers (LEDs, Keypads)
For LED drivers and keypad matrix scanners in consumer electronics, the PIC16CE625T-20/SO provides exactly the right mix of 13 digital I/O pins, 3.5 KB code space for state-machine firmware, and 128-byte EEPROM for storing user preferences (volume, brightness). The 20 MHz clock supports multiplexed 7-segment LED scanning without visible flicker. OTP programming prevents unauthorized firmware copying of finished UI designs, an advantage in consumer products.
Được đề xuất
Low-Cost Motor Drivers (Small DC Fans, Solenoids)
The PIC16CE625T-20/SO drives small DC fan motors and solenoid valves via PWM output on TMR0 or TMR1, with the 20 MHz instruction rate providing fine-grained PWM resolution for smooth motor control. The 13 I/O pins handle H-bridge direction signals, tachometer feedback, and fault inputs. EEPROM stores last-used fan speed or valve position across power cycles. Operating from 2.5V-5.5V supports both 3.3V logic-level and 5V driver designs.
Được đề xuất
Battery-Powered Portable Instruments
Battery-powered handheld meters and portable diagnostic tools benefit from the PIC16CE625T-20/SO's CMOS low-power design drawing under 2 mA active at 4 MHz and microamp-range sleep current. The 2.5V minimum supply lets the device run from two AA cells or a single Li-ion cell at 3.0V nominal. EEPROM data memory preserves measurement logs and user settings when batteries are removed. The 18-SOIC package is compact enough for handheld form factors.
Được đề xuất
Security and Access Control Panels
The PIC16CE625T-20/SO is used in security keypad panels and simple access control readers where OTP memory protects the proprietary authentication algorithm from extraction. The 13 I/O pins drive the keypad matrix, status LEDs, relay output for door strikes, and serial link to a central controller. The 128-byte EEPROM stores encrypted credential data that survives power-loss events. Industrial-grade ESD performance makes it suitable for installation in electrically noisy environments.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16CE625T-20/SO — 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 | PIC16CE625T-20E/SO | PIC16CE625T-20I/SO | PIC16CE625-20/SO | PIC16F630-I/SO |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-SOIC | 18-SOIC | 18-SOIC | 18-SOIC | 18-SOIC |
| Program Memory Type | OTP (3.5 KB) | OTP (3.5 KB) | OTP (3.5 KB) | OTP (3.5 KB) | Flash (1.75 KB) |
| Maximum Clock Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| Data EEPROM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| Data RAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 64 bytes |
| Operating Temperature | 0C to +70C (commercial) | -40C to +125C (extended) | -40C to +85C (industrial) | 0C to +70C (commercial) | -40C to +85C (industrial) |
| Packaging Format | Tape & Reel | Tape & Reel | Tape & Reel | Tube | Tube |
| Unit Price (qty 1) | USD 4.20 | USD 4.35 | USD 4.50 | USD 4.20 | USD 2.40 |
Bảo phân biệt quan trọng
- Same-brand drop-in with extended temperature range (vsPIC16CE625T-20E/SO)
- Flash-based drop-in for design iteration (vsPIC16F630-I/SO)
- Tube packaging variant for prototyping (vsPIC16CE625-20/SO)
Ghi chú thiết kế
The PIC16CE625T-20/SO supply range is 2.5V to 5.5V. Decouple VDD (pin 14) with a 100 nF ceramic capacitor placed within 5 mm of the pin and a 10 uF tantalum or aluminum bulk capacitor at the board's power entry. For battery applications drawing under 1 mA average, add a 100 kohm pull-up on MCLR (pin 4 configured as RA3/MCLR) to ensure defined reset behavior at power-up.
Place the 18-SOIC footprint on a 300-mil-wide SOIC land pattern, ensuring the ICSP pins RB6 (pin 12) and RB7 (pin 13) are routed to test pads or a 6-pin ICSP header for in-circuit serial programming. Keep the OSC1/OSC2 traces short and surrounded by ground pour to minimize clock noise coupling into adjacent analog comparator inputs on RA0/RA1.
PIC16CE625 OTP memory cannot be erased or reprogrammed. Before OTP programming in production, always validate firmware on a flash-equivalent PIC16F630 or PIC16F676 prototype. Brown-out detection must be enabled via the CONFIG register to avoid code runaway at low VDD, and the Watchdog Timer should be enabled in long-loop firmware to recover from unexpected hangs.
Thông tin tuân thủ
RoHS and REACH compliance confirmed by Microchip product page and DigiKey listing. Not AEC-Q100 qualified for automotive applications; the PIC16CE625T-20E/SO industrial variant is recommended for non-automotive extended-temperature designs.