PIC16CE625T-20I/SS - 20MHz 8-bit OTP MCU w/EEPROM | Microchip
MPN: PIC16CE625T-20I/SS ✓ Hoạt độngPIC16CE625T-20I/SS Tóm tắt
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, peripherals and I/O on one silicon die. In the broader embedded taxonomy, this device sits under: MCU -> 8-bit microcontroller -> Harvard-architecture MCU -> CMOS RISC MCU -> PIC16C-family mid-range core. The 'CE' suffix in the part number signals Microchip's EPROM program memory variant with integrated EEPROM, intended for prototyping and low-volume production prior to mask-ROM conversion.
Key differentiating features include 3.5 KB of one-time-programmable (OTP) program memory, 128 bytes of RAM, 13 general-purpose digital I/O pins sharing 18/20-pin packages, and on-chip peripherals such as Brown-out Detect (BOD), Power-On Reset (POR), Watchdog Timer (WDT), an 8-bit timer/counter, and an analog comparator. The Harvard RISC core offers only 35 single-word instructions, a 2-cycle branch, and a hardware interrupt controller, giving the part its reputation for fast context-switch responsiveness.
Architecture depth: the PIC16CE62X uses Microchip's mid-range 14-bit instruction word, an 8-level stack and 8-bit data path. The integrated comparator with programmable reference, plus the EPROM-based code store, makes this generation ideal for designs where in-system re-programmability was not yet mandatory but field-configurable trim and data logging via the on-die EEPROM were required.
Typical applications include consumer appliance controllers, sensor signal conditioning front-ends (paired with the on-chip comparator), low-cost PWM-driven LED or motor control, and industrial keypad/IO expansion modules. The 18/20-pin SSOP/SOIC footprint also makes it a drop-in candidate for legacy designs originally built on PIC16C62x mask-ROM parts. When designing with this part, note that OTP requires one-time UV-erase-and-reprogram at the device programmer; for in-application firmware updates, migrate to the PIC16F62x flash-based family.
Bộ thay thế dễ dàng lắp đặt cho PIC16CE625T-20I/SS — 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-20I/SS (cùng hình factor và footprint) — khác nhau ở Timers, Package, I/O Pins, EEPROM Data Memory, Program Memory Size.
PIC16CE625T-20I/SO
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16CE625-20I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16CE625T-20/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16CE625T-04I/SS
✅ Drop-InLiên hệ để biết giá
Xem tài liệu →PIC16F625T-I/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16F630T-I/SS
✅ Drop-In📋 Tham chiếu thay thế (không có trong danh mục)
PIC16CE625T-20I/SS Tỷ lệ tối đa & tính chất điện
| Product Family | PIC16C Mid-Range 8-bit MCU |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 3.5 KB (2K x 14) |
| RAM | 128 bytes |
| EEPROM Data Memory | 128 bytes |
| CPU Core | PIC16 Harvard RISC, 14-bit instruction |
| Instruction Set | 35 single-word instructions |
| Instruction Cycle Time | 200 ns at 20 MHz |
| Tần số xung maksimum | 20 MHz |
| Supply Voltage (VDD) | 3.0 V to 5.5 V |
| I/O Pins | 13 GPIO |
| Timers | 1 x 8-bit Timer/Counter |
| On-chip Peripherals | Brown-out Detect, POR, WDT, Analog Comparator |
| Nhiệt độ hoạt động | -40 C to +85 C (Industrial) |
| Hộp | 20-pin SSOP (5.30 mm body) |
| Kiểu lắp đặt | Surface Mount |
| Delivery Form | Tape & Reel |
| Trạng thái RoHS | Compliant |
Cấu hình chân PIC16CE625T-20I/SS
| Chân 1 | RA2 — Port A bit 2 / analog channel |
| Chân 2 | RA3 — Port A bit 3 / analog channel |
| Chân 3 | RA4 — Port A bit 4 / Timer0 clock input |
| Chân 4 | MCLR — Master Clear (reset, active low) |
| Chân 5 | VSS — Ground reference |
| Chân 6 | RB0/INT — Port B bit 0 / external interrupt |
| Chân 7 | RB1 — Port B bit 1 |
| Chân 8 | RB2 — Port B bit 2 |
| Chân 9 | RB3 — Port B bit 3 |
| Chân 10 | RB4 — Port B bit 4 |
| Chân 11 | RB5 — Port B bit 5 |
| Chân 12 | RB6 — Port B bit 6 / ICSP clock |
| Chân 13 | RB7 — Port B bit 7 / ICSP data |
| Chân 14 | VDD — Positive supply (3.0 V to 5.5 V) |
| Chân 15 | OSC2/CLKOUT — Oscillator output / clock out |
| Chân 16 | OSC1/CLKIN — Oscillator input / external clock |
| Chân 17 | RA0 — Port A bit 0 / analog channel 0 |
| Chân 18 | RA1 — Port A bit 1 / analog channel 1 |
| Chân 19 | RA5 — Port A bit 5 |
| Chân 20 | VDD — Positive supply (alternate VDD pin) |
Ứng dụng tiêu biểu
PIC16CE625T-20I/SS phù hợp cho 6 Áp dụngs: Consumer Appliance Control Board, Sensor Signal Conditioning Front-End, LED Lighting Controller (DMX / PWM), Industrial Keypad / IO Expansion Module, Automotive Body Electronics (Non-Safety), Battery-Powered Portable Instrument.
Consumer Appliance Control Board
The PIC16CE625T-20I/SS fits consumer appliance controllers - washing machines, dishwashers, microwave ovens - because it offers 13 GPIO to drive relays, seven-segment displays, keypads and indicator LEDs without external I/O expanders. The 200 ns instruction cycle supports software PWM for motor speed control and triac phase-angle firing for heater elements, while the on-chip comparator can implement zero-crossing detection directly off the mains via a resistor network. The 3 V to 5.5 V supply range simplifies designs that power the MCU directly from a rectified 5 V rail. With 3.5 KB of OTP and 128 bytes of EEPROM, the part stores user-set cycles, calibration constants and diagnostic counters without external non-volatile memory, reducing BOM cost.
Được đề xuất
Sensor Signal Conditioning Front-End
With its on-chip analog comparator and programmable voltage reference, the PIC16CE625T-20I/SS is ideal for sensor signal conditioning front-ends that convert analog transducer outputs into clean logic-level decisions. Typical pairings include thermistor temperature sensing (where the comparator thresholds the NTC bridge), photodiode ambient-light detection, and Hall-effect rotor-position sensing in BLDC fan controllers. The 20 MHz clock enables sub-microsecond comparator debounce and software-implemented hysteresis, while the 128-byte EEPROM stores per-unit calibration coefficients written during end-of-line test. The industrial -40 C to +85 C temperature grade ensures the front-end survives harsh enclosures.
Được đề xuất
LED Lighting Controller (DMX / PWM)
Architectural and entertainment LED fixtures benefit from the PIC16CE625T-20I/SS's 13 GPIO driving multiple MOSFET gate drivers and PWM channels. The PIC16 mid-range core implements 8-bit software PWM at refresh rates above 1 kHz with 13 independent channels, sufficient for direct RGB+W color-mixing fixtures. DMX-512 reception is bit-banged in software using the external interrupt on RB0 and the hardware UART, leaving the on-chip comparator and timer free for thermal-foldback sensing via an NTC on the LED heatsink. The 128-byte EEPROM stores DMX start addresses and color presets for fixture recall.
Được đề xuất
Industrial Keypad / IO Expansion Module
Modbus, I2C or SPI-based remote IO modules often use a PIC16CE625T-20I/SS to scan a 4x4 matrix keypad or 8-channel dry-contact input board over an isolated RS-485 link. The 13 GPIO are exactly sufficient for the matrix row/column drivers plus status LEDs, and the PIC16 mid-range core executes Modbus RTU frame parsing in less than 200 us at 20 MHz. The on-chip EEPROM stores node address, baud rate and parity settings that survive power cycles. The 3 V to 5.5 V supply range allows direct operation from a 24 V industrial bus via a TO-220 LDO.
Được đề xuất
Automotive Body Electronics (Non-Safety)
Within non-safety automotive body electronics - interior lighting controllers, seat-position switches, wiper timers - the PIC16CE625T-20I/SS is a strong fit when AEC-Q100 qualification is not mandatory. The -40 C to +85 C industrial temperature grade covers cabin environments, while the Brown-out Detect and Watchdog Timer protect against load-dump transients and firmware lockups. The 3.5 KB OTP memory and 13 GPIO support multi-channel PWM for window/lift control and indicator blinking. Designers should add a TVS diode array and reverse-battery protection on VDD per automotive design practices.
Được đề xuất
Battery-Powered Portable Instrument
Handheld meters, environmental dataloggers and remote-control transmitters benefit from the PIC16CE625T-20I/SS's low-power 8-bit mid-range core and wide 3 V to 5.5 V supply range, which works directly from a 2-cell alkaline or single-cell Li-ion pack. The Watchdog Timer and sleep-mode instruction (SLEEP) draw micro-amps between measurements, while the internal comparator wakes the part on a sensor threshold crossing. The 128-byte EEPROM logs measurement history with timestamp counters, surviving battery replacement. For designs that need even lower sleep current, the PIC16F690-I/SS flash variant offers the same peripherals with deep-sleep nanoamp current.
Được đề xuất
Tóm tắt các sản phẩm được đề xuất
Dữ liệu tham khảo kỹ thuật cho PIC16CE625T-20I/SS — 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 | PIC16CE625-20I/SS | PIC16CE625T-20/SS | PIC16F625T-I/SS | PIC16F630T-I/SS |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SSOP (5.30 mm) | 20-SSOP (5.30 mm) - same | 20-SSOP (5.30 mm) - same | 20-SSOP (5.30 mm) - same | 14-SSOP - different pin count |
| Program Memory | 3.5 KB OTP EPROM | 3.5 KB OTP EPROM - same | 3.5 KB OTP EPROM - same | 3.5 KB flash - in-system reprogram | 1 KB flash - smaller |
| Max Clock Frequency | 20 MHz | 20 MHz - same | 20 MHz - same | 20 MHz - same | 20 MHz - same |
| Supply Voltage | 3.0 V to 5.5 V | 3.0 V to 5.5 V - same | 3.0 V to 5.5 V - same | 2.0 V to 5.5 V - wider | 2.0 V to 5.5 V - wider |
| Temperature Range | -40 C to +85 C (Industrial) | -40 C to +85 C - same | 0 C to +70 C (Commercial) | -40 C to +85 C - same | -40 C to +85 C - same |
| GPIO Count | 13 | 13 - same | 13 - same | 13 - same | 12 - fewer |
| In-system Reprogrammable | No (OTP) | No (OTP) - same | No (OTP) - same | Yes (Flash) - upgrade | Yes (Flash) - upgrade |
Bảo phân biệt quan trọng
- Integrated 128-byte EEPROM for data storage without external memory chip (vsPIC16C624-20I/SS)
- Industrial -40 C to +85 C temperature grade (vsPIC16CE625T-20/SS)
- 20 MHz operation with 200 ns instruction cycle enables real-time control loops (vsPIC16CE625T-04I/SS)
Ghi chú thiết kế
Place a 100 nF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 14) and a bulk 10 uF tantalum or aluminum-polymer capacitor at the PCB power entry. The PIC16CE625T-20I/SS has two VDD pins (14 and 20) on the SSOP package; both must be decoupled separately to suppress switching noise from the internal clock driver. Brown-out Detect is factory-trimmed; for 3.3 V-only systems, verify the BOD trip does not falsely reset during power-ramp.
The PIC16CE625T-20I/SS uses OTP EPROM and CANNOT be electrically erased or reprogrammed in-circuit. Attempting ICSP reprogramming on a programmed OTP device leaves the existing code intact and may damage the silicon. For development, use a windowed CERDIP PIC16CE625 sample, or migrate to the flash-based PIC16F625-I/SS that is pin-compatible and supports ICSP. Never assume OTP parts are pre-blanked; always read back ID and verify before programming.
Keep the OSC1/OSC2 traces short (under 10 mm) and guard them with a ground ring to minimize EMI pickup. For crystal mode, use a fundamental-cut AT-cut crystal rated for 20 pF load with two 22 pF ceramic capacitors to ground. For RC oscillator mode (low-cost applications), calculate R from the manufacturer's RC table - typical 5 kohm with 22 pF gives ~4 MHz. The ICSP pins RB6/RB7 share general-purpose I/O, so add 10 kohm pull-downs on those lines to prevent false triggering during reset.
The SSOP-20 package has a thermal resistance of approximately 100 C/W junction-to-ambient, well above the 50 C/W typical of larger SOIC packages. At full 20 MHz clock and all peripherals enabled, the part dissipates under 50 mW - thermal rise is negligible. However, in enclosed 85 C environments, derate the clock by 10 percent or move to the I-grade 'E' (extended) variant if available.
Thông tin tuân thủ
RoHS compliant per Microchip product declaration; REACH SVHC compliant as of 2026-09-19; not AEC-Q100 qualified (industrial grade only); halogen-free status not explicitly stated in verified data.
