PIC16CE625T-04/SS - 4MHz 8-bit MCU 3.5KB OTP 128B EEPROM | Microchip
MPN: PIC16CE625T-04/SS β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.94 | $3.94 |
| 10 | $3.62 | $36.20 |
| 100 | $3.04 | $304.00 |
| 500 | $2.59 | $1,295.00 |
| 1,000 | $2.27 | $2,270.00 |
PIC16CE625T-04/SS Overview
An 8-bit microcontroller (MCU) is a small, self-contained computing device built around an 8-bit data path, integrating a CPU, non-volatile program memory, working RAM, and configurable peripherals on a single CMOS die. The PIC16CE62X series belongs to the broader mid-range PIC microcontroller family, which sits inside Microchip's PIC -> RISC microcontroller -> embedded controller -> semiconductor taxonomy. The 'CE' suffix indicates the addition of on-chip EEPROM data memory that retains user data even when the device is powered down, distinguishing the 'CE' line from the standard OTP-only 'C' parts.
Key features of the PIC16CE625T-04/SS include a 13-bit instruction word with 14-bit wide opcode, an internal 8-level hardware stack, two 8-bit timers (Timer0 and Timer2) plus one 16-bit timer (Timer1), a 10-bit multi-channel analog-to-digital converter, and 13 digital I/O pins capable of driving 25mA source/sink for direct LED interface. The device supports in-circuit serial programming (ICSP) via two pins, enabling firmware updates after PCB assembly.
The architecture uses a Harvard-style separated program/data bus and a RISC-style single-cycle instruction pipeline (except program branches, which require two cycles). Its 35-instruction set maps directly to one opcode each, simplifying compiler and assembler design. The integrated 128-byte EEPROM supports 1 million erase/write cycles minimum and 40-year retention, suitable for storing calibration, configuration, or user preference data.
Typical applications include appliance control front-panels, low-cost sensor interface nodes, automotive body controllers, lighting ballasts, and small consumer devices requiring non-volatile parameter storage. The wide 3.0V-5.5V supply range allows operation directly from a 3.3V regulator or from a regulated 5V rail. Design considerations include careful PCB layout for the analog VREF pin when using the ADC, and ensuring the MCLR reset pin has a proper RC network to avoid spurious resets in noisy environments.
This page synthesizes distributor pricing, drop-in same-family alternatives drawn from Microchip's PIC16CE62X portfolio, and practical design notes not found in the standalone datasheet.
Drop-in alternatives for PIC16CE625T-04/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 PIC16CE625T-04/SS (same form factor and footprint) β differing in Operating Temperature, Package, Timers, Analog Comparators, Core Architecture.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16CE624T-04/SS
β Drop-Inβ In Stock
$4.75 / Unit
View Datasheet βPIC16CE625T-20/SS
β Drop-Inπ Reference alternative (not in catalog)
PIC16CE625T-04I/SS
β Drop-Inβ In Stock
$1.92 / Unit
View Datasheet βPIC16CE625T-04E/SS
β Drop-Inπ Reference alternative (not in catalog)
PIC16CE623T-04/SS
β Drop-Inπ Reference alternative (not in catalog)
PIC16CE625T-30/SS
β Drop-In β οΈ εζ°εΎ ιͺθ―β In Stock
$4.1 / Unit
View Datasheet βPIC16CE625T-04/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC 8-bit RISC (mid-range) |
| Program Memory (ROM) | 3.5 KB OTP (One-Time Programmable) |
| Data EEPROM | 128 bytes |
| Data RAM | 128 bytes |
| Maximum Clock Speed | 4 MHz |
| Instruction Cycle Time | 200 ns (single-cycle, 2-cycle branches) |
| Supply Voltage (Vdd) | 3.0 V to 5.5 V |
| I/O Pins | 13 |
| Timers | 1x 8-bit (TMR0), 1x 16-bit (TMR1), 1x 8-bit (TMR2) |
| Package | SSOP-20 (5.30 mm body width) |
| Operating Temperature | 0 C to +70 C (commercial) |
| Mounting Type | Surface Mount |
| RoHS Status | Compliant |
| Lead-Free | Yes |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
| Instruction Set | 35 single-word instructions |
PIC16CE625T-04/SS Pin Configuration
| Pin 1 | RA2/AN2/VREF- β GPIO port A bit 2 / analog input 2 / ADC negative reference |
| Pin 2 | RA3/AN3/VREF+ β GPIO port A bit 3 / analog input 3 / ADC positive reference |
| Pin 3 | RA4/T0CKI β GPIO port A bit 4 / Timer0 clock input |
| Pin 4 | RA5/MCLR/VPP β GPIO port A bit 5 / master clear reset / programming voltage input |
| Pin 5 | VSS β Ground reference |
| Pin 6 | RB0/INT β GPIO port B bit 0 / external interrupt input |
| Pin 7 | RB1 β GPIO port B bit 1 |
| Pin 8 | RB2 β GPIO port B bit 2 |
| Pin 9 | RB3 β GPIO port B bit 3 |
| Pin 10 | RB4 β GPIO port B bit 4 |
| Pin 11 | RB5 β GPIO port B bit 5 |
| Pin 12 | RB6 β GPIO port B bit 6 |
| Pin 13 | RB7 β GPIO port B bit 7 |
| Pin 14 | Vdd β Positive supply input |
| Pin 15 | OSC2/CLKOUT β Oscillator crystal output / clock output |
| Pin 16 | OSC1/CLKIN β Oscillator crystal input / external clock input |
| Pin 17 | RC0 β GPIO port C bit 0 |
| Pin 18 | RC1 β GPIO port C bit 1 |
| Pin 19 | RC2 β GPIO port C bit 2 |
| Pin 20 | RC3 β GPIO port C bit 3 |
Typical Applications
PIC16CE625T-04/SS is suitable for 6 applications: Appliance Control Front-Panels, Automotive Body Electronics, Lighting Ballast Controllers, Low-Cost Sensor Interface Nodes, Consumer Remote Controls and IR Transmitters, Battery Chargers and Power Management.
Appliance Control Front-Panels
The PIC16CE625T-04/SS suits appliance front-panel controllers (washing machines, microwave ovens, dishwashers) where 13 GPIO pins drive 7-segment displays, keypads, and relay coils directly at 25 mA per pin. Its 3.5 KB OTP accommodates typical state-machine control firmware while the 128-byte EEPROM stores user-selectable wash cycles, language preferences, and last-used settings across power cycles. Operating from 3.0 V to 5.5 V lets the same PCB work with either a 3.3 V logic supply or a regulated 5 V rail.
Recommended
Automotive Body Electronics
The PIC16CE625T-04/SS (commercial grade) and its industrial sibling PIC16CE625T-04I/SS handle body-control tasks such as interior lighting dimming, mirror position memory, and seat control. The integrated 128-byte EEPROM preserves mirror and seat positions even when the battery is disconnected for service, while the 13 I/O pins interface directly to H-bridge drivers and switch matrices. For under-hood modules requiring -40 C to +125 C operation, the PIC16CE625T-04E/SS extended-temperature variant is pin-compatible.
Recommended
Lighting Ballast Controllers
Ballast controllers for fluorescent, LED, and HID lighting benefit from the PIC16CE625T-04/SS combination of timer peripherals and 13 I/O. Timer1 (16-bit) generates precise PFC switching frequencies while the 8-bit Timer2 handles dimming PWM duty-cycle control. The 128-byte EEPROM stores calibrated trim values for lamp current sensing, compensating for component tolerance drift across production batches. The 4 MHz clock is sufficient for low-frequency ballast control loops under 1 kHz bandwidth.
Recommended
Low-Cost Sensor Interface Nodes
Industrial sensor interfaces (temperature, humidity, pressure transducers with analog outputs) pair well with the PIC16CE625T-04/SS, which provides ADC input channels, EEPROM for calibration constants, and ICSP for factory-side firmware updates. The 128-byte EEPROM stores per-unit calibration coefficients that compensate for sensor tolerances, while 128 bytes of RAM buffer sample averaging. Sleep-mode current and the 3.0 V minimum supply enable battery or energy-harvest powered operation.
Recommended
Consumer Remote Controls and IR Transmitters
Handheld remote controls benefit from the PIC16CE625T-04/SS's small SSOP-20 footprint, low 3.0 V minimum supply, and EEPROM for storing learned IR codes. The 13 GPIO pins drive IR LEDs directly at 25 mA while reading matrix keypads; the 128-byte EEPROM retains user-programmed button mappings across battery swaps. The PIC16CE624T-04/SS serves as a cost-down for simpler fixed-code remotes that need only 1.75 KB of firmware space.
Recommended
Battery Chargers and Power Management
Simple sealed-lead-acid (SLA) and NiMH charger controllers use the PIC16CE625T-04/SS to implement CC/CV charge profiles with EEPROM storage of charging parameters. The 13 I/O pins interface to MOSFET gate drivers, current-sense amplifiers, and status LEDs; the 128-byte EEPROM stores per-battery-pack capacity, last-charge time, and cycle count. The 200 ns instruction cycle is fast enough for closed-loop current regulation in sub-100 kHz PWM designs.
Recommended
Recommended Products Summary
Engineering reference data for PIC16CE625T-04/SS β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16CE624T-04/SS | PIC16CE625T-20/SS | PIC16CE625T-04I/SS | PIC16CE625T-04E/SS | PIC16CE623T-04/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SSOP-20 | SSOP-20 - same | SSOP-20 - same | SSOP-20 - same | SSOP-20 - same | SSOP-20 - same |
| Program Memory (OTP) | 3.5 KB | 1.75 KB | 3.5 KB | 3.5 KB | 3.5 KB | 0.875 KB |
| Data EEPROM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| Maximum Clock Speed | 4 MHz | 4 MHz | 20 MHz | 4 MHz | 4 MHz | 4 MHz |
| Supply Voltage | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V | 3.0 V to 5.5 V |
| Operating Temperature | 0 C to +70 C | 0 C to +70 C | 0 C to +70 C | -40 C to +85 C | -40 C to +125 C | 0 C to +70 C |
| I/O Pins | 13 | 13 | 13 | 13 | 13 | 13 |
Key Differentiators
- Higher program memory within SSOP-20 footprint (vs PIC16CE624T-04/SS)
- Lower speed rating but adequate for most control loops (vs PIC16CE625T-20/SS)
- Commercial temperature grade is sufficient for indoor equipment (vs PIC16CE625T-04E/SS)
Design Notes
Place a 0.1 uF decoupling capacitor as close as possible to the Vdd pin (pin 14) and a bulk capacitor (4.7 uF to 10 uF) at the regulator output. The PIC16CE625T-04/SS draws sub-mA active current and only microamps in sleep, but the ADC reference (VREF+/VREF-) pins benefit from additional filtering capacitors when used. Estimated: typical Vdd current at 4 MHz, 5 V is approximately 2 mA active and 1 uA sleep per the PIC16CE62X family characteristics.
The MCLR pin (RA5/MCLR/VPP) is shared between GPIO, master clear reset, and programming voltage input. If used as a GPIO, ensure the ICSP programmer does not drive high voltage during normal operation, or use a diode isolation scheme. A weak pull-up (typically 10 kohm) on MCLR is required for normal reset behavior; without it, the part may enter unpredictable reset states in noisy environments. Never leave MCLR floating.
The SSOP-20 package has a 0.65 mm pin pitch, requiring PCB pads of approximately 0.40 mm width with 0.20 mm spacing - well within standard 4-mil/8-mil SMT fabrication capabilities. Use a ground plane beneath the device and keep high-speed switching traces (crystal, oscillator) short and surrounded by ground. Crystal traces should be < 5 mm each to minimize parasitic capacitance and ensure reliable oscillator startup across the full 3.0 V to 5.5 V supply range.
Compliance Information
RoHS compliant per LCSC and distributor listings. Not AEC-Q100 qualified - the standard part is commercial grade; for automotive applications consider the PIC16CE625T-04E/SS extended-temperature variant. Halogen-free status not confirmed in available data.
