PIC16CE625-30/P - 3.5KB OTP 8-bit MCU, EEPROM | Microchip
MPN: PIC16CE625-30/P β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.99 | $2.99 |
| 10 | $2.85 | $28.50 |
| 100 | $2.65 | $265.00 |
| 500 | $2.45 | $1,225.00 |
| 1,000 | $2.25 | $2,250.00 |
PIC16CE625-30/P Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data memory, and programmable peripherals into one IC. Within the broader taxonomy, the PIC16CE625 is a RISC microcontroller, sitting inside the 8-bit MCU class, which itself belongs to embedded microcontrollers, then to microprocessors and microcontrollers, and finally to the integrated-circuit / semiconductor domain. EEPROM-equipped MCUs add an internal non-volatile data store that survives power cycling, ideal for configuration constants, calibration tables and serial numbers without an external memory chip.
Key features include 13 I/O pins with individual direction control, an analog comparator with programmable on-chip voltage reference, a 16-bit timer/counter (Timer0) plus an 8-bit timer/counter (Timer2) with prescaler, and a Watchdog Timer with its own on-chip RC oscillator for reliable operation. The device supports 8-bit Γ 14-bit instruction word architecture, 200 ns single-cycle instructions (except program branches, which are two-cycle), four interrupt sources, and in-circuit serial programming (ICSP). Wide operating-voltage range of 2.5V to 5.5V and an industrial temperature range of -40Β°C to +85Β°C make it well-suited for commercial and industrial environments.
The PIC16CE625 architecture uses a Harvard-style separate program and data bus, a 14-bit-wide program memory, and CMOS OTP EPROM for program storage. The EEPROM data memory block is rated for 1,000,000 erase/write cycles typical, far exceeding the OTP code that is programmed once. Built-in Power-on Reset (POR), Power-up Timer (PWRT), Oscillator Start-up Timer (OST), and Brown-out Reset (BOR) circuitry reduce external component count.
Typical applications include appliance controls, security and access systems, automotive body electronics, low-cost remote controls, sensor-conditioning front-ends with on-chip comparator, and small battery-powered devices that benefit from the on-chip EEPROM data store. Engineers often select it when code size is modest (under 2K words), EEPROM endurance is needed, and the through-hole PDIP-18 footprint is desired for prototypes, hobby projects, or repair of legacy boards.
Design considerations include placing a 100 nF decoupling capacitor close to VDD and VSS, routing the MCLR reset line away from high-frequency signals, and configuring the internal RC oscillator for low-power standby where timing accuracy is non-critical. Compared with flash-based PIC16F630, the PIC16CE625 is OTP and lacks ICD debugging, so reserve it for mature production designs.
This page consolidates verified distributor pricing, side-by-side drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, giving procurement and engineering teams a single source for sourcing decisions.
Drop-in alternatives for PIC16CE625-30/P β 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 PIC16CE625-30/P (same form factor and footprint) β differing in Core Architecture, I/O Pins, Instruction Set, Mounting Type, Package.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16CE625-30/SO
β Drop-Inπ Reference alternative (not in catalog)
PIC16CE625-20/P
β Drop-Inπ Reference alternative (not in catalog)
PIC16CE625-04/P
β Drop-Inπ Reference alternative (not in catalog)
PIC16CE625-04E/P
β Drop-Inβ In Stock
$2.41 / Unit
View Datasheet βPIC16F630-I/P
β Drop-Inπ Reference alternative (not in catalog)
PIC16CE625-30/P Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC RISC |
| Instruction Set | 35 single-word instructions, 14-bit wide |
| Program Memory Type | EPROM (OTP) |
| Program Memory Size | 3.5 KB (2048 Γ 14 bits) |
| Data EEPROM | 128 bytes |
| Data RAM | 128 bytes |
| Maximum Clock Frequency | 30 MHz (200 ns instruction cycle) |
| I/O Pins | 13 |
| Timers | 1 Γ 16-bit (Timer0), 1 Γ 8-bit (Timer2) |
| On-chip Peripherals | Analog comparator with programmable VREF, Watchdog Timer with dedicated oscillator |
| Operating Voltage | 2.5 V to 5.5 V |
| Operating Temperature | -40Β°C to +85Β°C (Industrial) |
| Package | 18-pin PDIP (0.300", 7.62mm) |
| Mounting Type | Through-Hole |
| Programming Method | ICSP (In-Circuit Serial Programming) |
| Brown-out Reset (BOR) | Yes |
| Power-on Reset / PWRT / OST | Yes |
| Interrupt Sources | 4 |
| MSL Level | 1 |
| RoHS Status | Compliant |
PIC16CE625-30/P Pin Configuration
| Pin 1 | RA2/AN2/CVREF β Bidirectional I/O / Analog input / Comparator voltage reference output |
| Pin 2 | RA3/AN3 β Bidirectional I/O / Analog input channel 3 |
| Pin 3 | RA4/T0CKI β Bidirectional I/O (open-drain) / Timer0 clock input |
| Pin 4 | MCLR/VPP β Master Clear reset input / Programming voltage input |
| Pin 5 | VSS β Ground reference |
| Pin 6 | RB0/INT β Bidirectional I/O / External interrupt input |
| Pin 7 | RB1/RX/DT β Bidirectional I/O / USART RX or synchronous data |
| Pin 8 | RB2/TX/CK β Bidirectional I/O / USART TX or synchronous clock |
| Pin 9 | RB3/CCP β Bidirectional I/O / Capture-Compare-PWM output |
| Pin 10 | RB4/PGM β Bidirectional I/O / Low-voltage programming input |
| Pin 11 | RB5 β Bidirectional I/O |
| Pin 12 | RB6/ICSPCLK β Bidirectional I/O / In-Circuit Serial Programming clock |
| Pin 13 | RB7/ICSPDAT β Bidirectional I/O / In-Circuit Serial Programming data |
| Pin 14 | VDD β Positive supply voltage (2.5V to 5.5V) |
| Pin 15 | OSC2/CLKOUT β Oscillator crystal output / Clock output |
| Pin 16 | OSC1/CLKIN β Oscillator crystal input / External clock input |
| Pin 17 | RA0/AN0 β Bidirectional I/O / Analog input channel 0 |
| Pin 18 | RA1/AN1 β Bidirectional I/O / Analog input channel 1 |
Typical Applications
PIC16CE625-30/P is suitable for 7 applications: Appliance Control Boards, Security and Access Control, Industrial Sensor Front-Ends, Automotive Body Electronics, Low-Cost Remote Controls and IR Toys, Legacy Equipment Repair and Hobby Projects, Smart Home Sensor Nodes.
Appliance Control Boards
The PIC16CE625-30/P suits appliance control boards such as microwave ovens, washing machines and HVAC thermostats because its 3.5 KB OTP memory stores fixed control firmware, while 128 bytes of EEPROM retain user preferences and calibration constants across power cycles. The on-chip analog comparator with programmable VREF handles zero-crossing detection on 24VAC lines, and the 13 I/O pins drive relays, triac optocouplers and seven-segment displays directly. Industrial temperature range -40Β°C to +85Β°C and 5V operation align with white-goods mains-supplied boards.
Recommended
Security and Access Control
For access control panels, alarm keypads and door controllers, the PIC16CE625-30/P's 128-byte EEPROM is ideal for storing access codes, RFID tag IDs and tamper counters without external memory. The 200 ns instruction cycle at 30 MHz enables real-time keypad debouncing and magnetic-door sensor polling, while the hardware Watchdog Timer with its own RC oscillator recovers the system from firmware lockups caused by ESD on the keypad lines. The 18-pin PDIP footprint is also useful for through-hole repair of older access panels.
Recommended
Industrial Sensor Front-Ends
The PIC16CE625-30/P serves industrial 4-20 mA sensor transmitters and limit-switch front-ends by exploiting the on-chip analog comparator to threshold-detect sensor outputs without an external op-amp. The programmable VREF sets precise switching thresholds for thermistor or optical-sensor inputs, and the 128-byte EEPROM stores per-unit calibration data and serial numbers during manufacturing. Brown-out Reset and Power-on Reset ensure deterministic startup on 24V industrial rails even after brown-outs on the 5V regulated supply.
Recommended
Automotive Body Electronics
Within automotive body modules such as interior lighting, seat controllers and accessory timers, the PIC16CE625-30/P offers 128-byte EEPROM for storing user preferences (mirror position, ambient lighting levels) plus 3.5 KB of OTP code for fixed sequencing logic. The 13 I/O pins drive MOSFET gate drivers, read switch inputs and toggle PWM channels for LED dimming, while the wide 2.5V-5.5V VDD range tolerates load-dump conditions after proper external protection. Designers should pair it with a TVS-protected 12V-to-5V regulator for production underhood-adjacent modules.
Recommended
Low-Cost Remote Controls and IR Toys
Battery-powered remote controls, IR/RF toy controllers and simple consumer gadgets leverage the PIC16CE625-30/P's low 2.5V minimum VDD to operate directly from two AA cells, while the 200 ns instruction cycle at 30 MHz generates precise IR carrier frequencies (typically 38 kHz or 56 kHz) for NEC/RC-5 protocol encoding. Sleep current is in the microamp range when the Watchdog Timer handles wake-up intervals, and the 128-byte EEPROM stores device pairings or last-used modes across battery swaps, providing a richer experience than flash-less MCUs at similar cost.
Recommended
Legacy Equipment Repair and Hobby Projects
Because the PIC16CE625-30/P comes in a through-hole 18-pin PDIP, it remains popular for repairing legacy industrial controllers, replacing obsolete microcontrollers on EOL motherboards, and for hobbyist projects where breadboard-friendly packages simplify prototyping. The ICSP interface allows in-circuit reprogramming during development via a PICkit 3 or ICD programmer, while the EEPROM data memory enables convenient storage of project parameters, last-mode memory and incremental calibration values that survive power-cycles and firmware experiments.
Recommended
Smart Home Sensor Nodes
Smart-home temperature, humidity and occupancy sensors can use the PIC16CE625-30/P as a tiny supervisory controller between a low-power sensor and a wireless module, since the on-chip analog comparator interfaces directly to thermistor bridges and PIR motion detectors without an external op-amp. The 128-byte EEPROM stores commissioning parameters such as network ID and reporting interval, and the Watchdog Timer with dedicated internal oscillator recovers from RF-induced firmware hangs. Designers benefit from the 5V-tolerant I/O when interfacing to legacy 5V sensor boards.
Recommended
Recommended Products Summary
Engineering reference data for PIC16CE625-30/P β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16CE625-30/SO | PIC16CE625-20/P | PIC16CE625-04/P | PIC16CE625-04E/P | PIC16F630-I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-pin PDIP | 18-pin SOIC - same pin count, different footprint | 18-pin PDIP - same | 18-pin PDIP - same | 18-pin PDIP - same | 18-pin PDIP - same |
| Program Memory Type | 3.5 KB EPROM (OTP) | 3.5 KB EPROM (OTP) | 3.5 KB EPROM (OTP) | 3.5 KB EPROM (OTP) | 3.5 KB EPROM (OTP) | 1 KB Flash (reprogrammable) |
| Data EEPROM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| Data RAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 64 bytes |
| Maximum Clock Frequency | 30 MHz (200 ns cycle) | 30 MHz | 20 MHz (-33%) | 4 MHz (-87%) | 4 MHz (-87%) | 20 MHz (-33%) |
| Operating Temperature | -40Β°C to +85Β°C | -40Β°C to +85Β°C | -40Β°C to +85Β°C | -40Β°C to +85Β°C | -40Β°C to +125Β°C (Extended) | -40Β°C to +85Β°C |
| Debug Support (ICD) | No (OTP only) | No (OTP only) | No (OTP only) | No (OTP only) | No (OTP only) | Yes (ICD 2-wire) |
| Unit Price (1-piece) | $2.99 | $3.20 | $2.85 | $2.65 | $3.10 | $1.85 |
Key Differentiators
- Highest speed OTP variant in PIC16CE625 PDIP family (vs PIC16CE625-20/P)
- On-chip EEPROM data memory (vs PIC16F630-I/P)
- Industrial temperature range with through-hole package (vs PIC16CE625-04E/P (extended temp 125Β°C))
Design Notes
Place a 100 nF ceramic decoupling capacitor as close as physically possible to the VDD pin (Pin 14) and VSS pin (Pin 5) of the PIC16CE625-30/P. For boards with multiple ICs, add a bulk 10 Β΅F tantalum or aluminum electrolytic capacitor near the regulator output to handle transient current demands from output-pin switching. The internal Brown-out Reset (BOR) circuit should be enabled in the configuration word to ensure deterministic startup when VDD falls below the BOR threshold, preventing code execution from corrupted memory.
Estimated: PIC16CE625-30/P OTP devices cannot be erased and reprogrammed. If you anticipate firmware iteration, prototype with the PIC16F630-I/P (same 18-pin PDIP pinout, flash-based) and only commit the OTP PIC16CE625-30/P for production. Be aware that the high-endurance EEPROM data memory is separate from program memory - it is rated for 1,000,000 erase/write cycles typical but write operations must be guarded against unintentional writes in interrupt service routines.
Route the MCLR/VPP reset line (Pin 4) away from any high-frequency switching signals such as the OSC1/OSC2 crystal traces or relay-driver traces. Keep the ICSP clock (RB6/ICSPCLK, Pin 12) and data (RB7/ICSPDAT, Pin 13) traces short and parallel to avoid noise coupling during programming. Place the oscillator crystal or resonator within 5 mm of OSC1 (Pin 16) and OSC2 (Pin 15), with ground flooded around the oscillator area to reduce EMI and improve clock stability across the full -40Β°C to +85Β°C range.
RA4 (Pin 3) is an open-drain output on the PIC16CE625-30/P - it requires an external pull-up resistor (typically 4.7 kΞ© to 10 kΞ©) to drive a logic-high level. All other I/O pins are TTL/CMOS-compatible push-pull outputs. When interfacing to 3.3V logic, ensure VDD is at 3.3V (within the 2.5V-5.5V range) so output-high levels are within the 3.3V receiver's Vih specification; do not rely on 5V PIC16CE625-30/P outputs to drive 3.3V CMOS inputs without level shifting.
Compliance Information
RoHS compliant per Microchip product declaration; MSL Level 1; not AEC-Q100 qualified (consumer/industrial grade only); lead-free matte-tin plating on PDIP leads.
