PIC16CE625-30/SS - 8-Bit 30MHz OTP MCU 3.5KB | Microchip
MPN: PIC16CE625-30/SS β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $4.12 | $4.12 |
| 10 | $3.71 | $37.10 |
| 100 | $3.25 | $325.00 |
| 500 | $2.82 | $1,410.00 |
| 1,000 | $2.41 | $2,410.00 |
PIC16CE625-30/SS Overview
An 8-bit microcontroller (MCU) is a small computing system on a single integrated circuit that combines a CPU, program memory, data RAM, and peripherals. The PIC16CE625 belongs to the PIC16C mid-range family of microcontrollers, which sits in the hierarchy: PIC16C family -> PIC16 sub-family -> 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. The 'CE' suffix in the part number indicates the inclusion of on-chip EEPROM data memory, distinguishing this part from the OTP-only 'C' variants while retaining the same instruction set and pinout. The architecture is Harvard-based with a separate 14-bit instruction word and 8-bit data path, supporting 35 single-word instructions executed in a single cycle (except branches, which take two).
Key features include 13 digital I/O pins, two analog comparators, an 8-bit timer/counter (TMR0), a 16-bit timer/counter (TMR1) with built-in oscillator, and a Watchdog Timer with its own on-chip RC oscillator for reliable operation. The device supports in-circuit serial programming (ICSP) via the RB6/RB7 pins, allowing firmware updates after PCB assembly. The 20-pin SSOP (Shrink Small Outline Package) provides a compact 0.65 mm pitch footprint ideal for space-constrained designs.
From an architectural perspective, the PIC16CE625 implements a RISC instruction set with only 35 instructions, simplifying code generation and reducing compiler complexity. The internal oscillator option and Power-on Reset (POR) circuit reduce external component count, while the dual analog comparators can be configured for sleep-mode wake-up, enabling ultra-low standby power applications on a 5V supply.
Typical applications include consumer appliance control, automotive body electronics (non-safety), battery chargers, sensor signal conditioning, remote controls, and small industrial controllers. The combination of OTP program memory with EEPROM data storage makes the part well suited for products that require permanent firmware but may need field-adjustable parameters stored in non-volatile memory.
When designing with the PIC16CE625-30/SS, ensure the ICSP programming interface (RB6/RB7 + VPP/MCLR) is accessible on the PCB to allow post-assembly firmware programming. The OTP memory means firmware bugs cannot be corrected after programming - thorough code review and pre-production verification are essential. Choose PIC16F variants if in-system reprogrammability via Flash is required.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, including comparison parameters with modern Flash-based PIC16F successors.
Drop-in alternatives for PIC16CE625-30/SS 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/SS (same form factor and footprint) β differing in Instruction Set, Package, Program Memory Size, Timers, Operating Temperature.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16CE625-30/SO
β Drop-Inπ Reference alternative (not in catalog)
PIC16CE625-30/P
β Drop-Inβ In Stock
$2.25 / Unit
View Datasheet βPIC16CE624-30/SS
β Drop-Inπ Reference alternative (not in catalog)
PIC16CE623-30/SS
β Drop-Inβ In Stock
$1.45 / Unit
View Datasheet βPIC16CE624T-30/SS
β Drop-Inβ In Stock
$4.85 / Unit
View Datasheet βPIC16F628A-I/SS
β Drop-Inπ Reference alternative (not in catalog)
PIC16CE625-30/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC16C RISC |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 3.5 KB (2K x 14) |
| Data RAM | 128 bytes |
| EEPROM Data Memory | Yes (on-chip) |
| Maximum Clock Frequency | 30 MHz |
| Instruction Set | 35 single-word instructions |
| I/O Pins | 13 |
| Analog Comparators | 2 |
| Timers | TMR0 (8-bit), TMR1 (16-bit) |
| Watchdog Timer | Yes, with dedicated RC oscillator |
| Supply Voltage | 3.0 V to 5.5 V |
| Operating Temperature | -40 C to +85 C (industrial) |
| In-Circuit Programming | ICSP via RB6/RB7 |
| Package | 20-pin SSOP (0.209 inch / 5.30 mm width, 0.65 mm pitch) |
| Mounting Type | Surface Mount |
PIC16CE625-30/SS Pin Configuration
| Pin 1 | RA2/AN2 β Port A bit 2 / analog comparator input |
| Pin 2 | RA3/AN3 β Port A bit 3 / analog comparator input |
| Pin 3 | RA4/T0CKI β Port A bit 4 / TMR0 clock input |
| Pin 4 | MCLR/VPP β Master Clear reset / programming voltage input |
| Pin 5 | VSS β Ground reference |
| Pin 6 | RB0/INT β Port B bit 0 / external interrupt input |
| Pin 7 | RB1 β Port B bit 1 |
| Pin 8 | RB2 β Port B bit 2 |
| Pin 9 | RB3 β Port B bit 3 |
| Pin 10 | RB4 β Port B bit 4 |
| Pin 11 | RB5 β Port B bit 5 |
| Pin 12 | RB6/PGC β Port B bit 6 / ICSP clock |
| Pin 13 | RB7/PGD β Port B bit 7 / ICSP data |
| Pin 14 | VDD β Positive supply (3.0-5.5 V) |
| Pin 15 | OSC2/CLKOUT β Oscillator output / clock output |
| Pin 16 | OSC1/CLKIN β Oscillator input / external clock input |
| Pin 17 | RA0/AN0 β Port A bit 0 / analog comparator input |
| Pin 18 | RA1/AN1 β Port A bit 1 / analog comparator input |
| Pin 19 | RA5 β Port A bit 5 (input only) |
| Pin 20 | RA6 β Port A bit 6 / general purpose I/O |
Typical Applications
PIC16CE625-30/SS is suitable for 6 applications: Consumer Appliance Control, Remote Control and IR Transmitter, Battery Charger Controller, Sensor Signal Conditioning Module, Automotive Body Electronics (Aftermarket), Small Industrial Timer / Controller.
Consumer Appliance Control
The PIC16CE625-30/SS fits consumer appliance control boards where fixed-function firmware drives relays, sensors, and user inputs in washing machines, microwave ovens, and small kitchen appliances. Its 3.5 KB OTP program memory holds state-machine firmware for timing sequences, the 13 I/O pins directly drive LED indicators and keypad matrices, and the two on-chip analog comparators handle sensor thresholds (temperature, water level) without external op-amps. The on-chip EEPROM data memory is especially valuable for storing user-selected cycles, calibration values, and last-used settings across power cycles. Operating from 3.0-5.5 V, the part integrates into 5V-regulated supplies common in white goods. The SSOP-20 package allows compact PCB layouts in space-constrained appliance enclosures.
Recommended
Remote Control and IR Transmitter
The PIC16CE625-30/SS is well suited for handheld IR remote control transmitters where the 13 I/O pins directly drive a keypad matrix and an IR LED through a transistor driver. The TMR1 16-bit timer generates precise 38 kHz / 40 kHz carrier frequencies for RC5, NEC, or Sony IR protocols with minimal CPU overhead, while the 8-bit TMR0 handles debounce and repeat-key timing. At 30 MHz the part delivers ~5 MIPS, sufficient for protocol encoding without consuming battery power. The Watchdog Timer with dedicated RC oscillator ensures reliable recovery from low-voltage brownout conditions on the 3V coin-cell supply. The compact SSOP-20 footprint suits thin remote enclosures.
Recommended
Battery Charger Controller
The PIC16CE625-30/SS serves as the control brain in NiMH/NiCd or small Li-ion battery chargers where OTP code implements charge profiles, termination algorithms, and safety timers. The two analog comparators monitor battery voltage and charge current through external resistor sense networks, triggering the PWM control loop on TMR0/TMR1. The on-chip EEPROM stores charge cycle counts, calibration constants, and battery-specific parameters that survive power cycles, useful for tracking battery health. The 3.0-5.5 V supply range supports both single-cell (3.6 V nominal) and multi-cell (4.8 V or 6 V) battery stacks. Industrial -40 C to +85 C rating covers most charging environments.
Recommended
Sensor Signal Conditioning Module
The PIC16CE625-30/SS is a good fit for industrial sensor signal conditioning modules that need local intelligence to linearize, scale, and transmit sensor data over UART or PWM. The 13 digital I/O pins connect to multiple low-speed sensors (thermistors, switches, optical interrupters) while the two analog comparators provide threshold detection with hardware response in microseconds. The 30 MHz CPU speed allows simple digital filtering and linearization math on 10-bit external ADC data. The on-chip EEPROM stores sensor calibration coefficients generated at module test time. The Watchdog Timer resets the module if firmware locks up due to EMI on long sensor cables.
Recommended
Automotive Body Electronics (Aftermarket)
The PIC16CE625-30/SS fits automotive aftermarket body electronics such as alarm systems, remote keyless entry, window modules, and lighting controllers that do not require AEC-Q100 qualification. Its 13 I/O pins drive relays and read switches across door, hood, and trunk interfaces, while the 30 MHz speed generates precise timing for alarm sirens and indicator flashers. The on-chip EEPROM stores user PIN codes, learned remote IDs, and diagnostic counters. The 3.0-5.5 V supply matches 12V automotive rails after regulation. For OEM automotive designs, choose AEC-Q100 qualified PIC16F or PIC16F1xxx successors instead.
Recommended
Small Industrial Timer / Controller
The PIC16CE625-30/SS serves as the controller in small industrial timing and sequencing modules, including conveyor controls, packaging machinery sub-systems, and pump/dose controllers. The TMR1 16-bit timer with optional external oscillator enables precise long-duration timing (hours) for batch processes, while the Watchdog Timer protects against firmware lockup in electrically noisy industrial environments. The on-chip EEPROM stores recipe parameters, calibration data, and runtime counters across power cycles. The 13 I/O pins interface with 24V signals through external optocouplers and triac drivers. The -40 C to +85 C industrial temperature range covers most factory-floor installations.
Recommended
Recommended Products Summary
Engineering reference data for PIC16CE625-30/SS β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16CE625-30/SO | PIC16CE625-30/P | PIC16CE624-30/SS | PIC16CE623-30/SS | PIC16CE624T-30/SS | PIC16F628A-I/SS |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SSOP-20 | SOIC-20 | PDIP-20 | SSOP-20 | SSOP-20 | SSOP-20 | SSOP-20 |
| Program Memory | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 2 KB OTP | 896 B OTP | 2 KB OTP | 3.5 KB Flash |
| Data RAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 96 bytes | 128 bytes | 224 bytes |
| EEPROM Data Memory | Yes | Yes | Yes | Yes | Yes | Yes | Yes (Flash emulation) |
| Max Clock Frequency | 30 MHz | 30 MHz | 30 MHz | 30 MHz | 30 MHz | 30 MHz | 20 MHz |
| I/O Pins | 13 | 13 | 13 | 13 | 13 | 13 | 16 |
| Memory Technology | OTP + EEPROM | OTP + EEPROM | OTP + EEPROM | OTP + EEPROM | OTP + EEPROM | OTP + EEPROM | Flash (reprogrammable) |
| Supply Voltage | 3.0-5.5 V | 3.0-5.5 V | 3.0-5.5 V | 3.0-5.5 V | 3.0-5.5 V | 3.0-5.5 V | 2.0-5.5 V |
Key Differentiators
- On-chip EEPROM data memory distinguishes the CE625 from the C625 (vs PIC16C625-30/SS)
- Same SSOP-20 footprint as PIC16F628A with Flash reprogrammability (vs PIC16F628A-I/SS)
- 30 MHz clock speed for time-critical applications (vs PIC16CE625-04/SS)
Design Notes
The PIC16CE625-30/SS uses One-Time Programmable (OTP) memory that cannot be erased or rewritten after programming. A firmware bug in production programming requires scrapping the programmed parts. Mitigation: implement MPLAB X debugger using an ICD header or use a windowed PIC16CE625 JW (ceramic) package for prototype code verification before committing OTP parts. Always verify firmware with a development environment and final test bench before authorizing production runs.
For in-circuit serial programming (ICSP), the RB6/PGC, RB7/PGD, and MCLR/VPP pins must be accessible on the final PCB without buffer interference. Place 4.7 kohm pull-up on MCLR to VDD, route RB6/RB7 away from high-current switching signals, and bring out an unbuffered programming header. The programming voltage VPP is nominally 13V with 13.0-13.5V range - ensure the regulator supplying VPP can source the required current and is decoupled with 0.1 uF ceramic directly at the MCLR pin.
Place a 0.1 uF ceramic decoupling capacitor as close as possible to the VDD pin (pin 14) with the ground lead returning directly to the nearest VSS plane. Add a bulk 10 uF tantalum or aluminum electrolytic capacitor at the PCB power entry point to handle transient current demands from peripheral drivers. The PIC16CE625-30/SS draws approximately 2-5 mA active at 30 MHz and 1 uA typical standby with Watchdog disabled - budget power supply capacity accordingly for sensor-driven wake-up applications.
Route the OSC1/OSC2 crystal traces symmetrically and keep them short (under 10 mm) to minimize stray capacitance and EMI pickup. Place crystal loading capacitors (typically 15-33 pF ceramic, exact value per crystal datasheet) directly at the OSC pins with ground returns to the VSS plane. Avoid routing digital switching signals parallel to or beneath the crystal traces. For high-EMI environments, consider a guard ring around the oscillator circuit connected to VSS to reduce external noise injection.
Compliance Information
RoHS, REACH, lead-free, and halogen-free compliance status not stated in the verified distributor data. The PIC16CE625 family is a legacy OTP product line - lead-free and RoHS compliant versions may exist as -I (industrial temperature) speed grade variants, but explicit certification was not available in the verified data. AEC-Q100 is not applicable - the part is not qualified for new automotive designs.
