PIC16CE625T-30/SS - 8-bit OTP MCU, 3.5KB EPROM, 128B RAM | Microchip
MPN: PIC16CE625T-30/SS β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $6.5 | $6.50 |
| 10 | $5.85 | $58.50 |
| 100 | $5.2 | $520.00 |
| 500 | $4.65 | $2,325.00 |
| 1,000 | $4.1 | $4,100.00 |
PIC16CE625T-30/SS Overview
An 8-bit OTP microcontroller is a single-chip computer built around an 8-bit data path whose program memory is one-time programmable (the cell can be written once and thereafter behaves as ROM). Such MCUs sit in the broader taxonomy of microcontrollers -> embedded processors -> semiconductors. Compared with flash-based MCUs, OTP variants typically offer lower unit cost for high-volume consumer products but require full-firmware commitment before wafer packaging. EEPROM-backed data memory makes the PIC16CE625 well suited to applications that must store calibration values, user settings, or runtime counters without external storage.
Key features of the PIC16CE625T-30/SS include a 13-bit instruction set running at up to 30 MHz, 13 digital I/O pins, an internal 4 MHz RC oscillator, two analog comparators with programmable reference, a 5-channel 8-bit ADC, two 8-bit timers (Timer0 and Timer2) plus one 16-bit timer (Timer1), and a synchronous serial port (SSP) supporting SPI and I2C. The integrated 128-byte EEPROM is rated for one million erase/write cycles, supporting persistent parameter storage in the field.
Architecturally, the PIC16CE625 uses a RISC-like Harvard core with separate program and data buses, a hardware multiplier-free ALU, and 14-bit wide instructions. The 30 MHz oscillator input drives a four-phase clock generator and the in-circuit debug-friendly ICSP interface, and brown-out detect plus power-on reset are integrated. A wide operating voltage range of 3.0 V to 5.5 V supports both battery and regulated 5 V rails.
Typical applications include appliance control panels, consumer remote controls, low-end sensor signal conditioning, security keypads, and small appliance timer modules. The internal comparator and voltage reference allow direct thermistor or other resistive-sensor interfacing without an external op-amp. Designers choose this part when program memory is fixed late in development, BOM cost is critical, and a small handful of digital I/O plus EEPROM storage is sufficient.
When designing with this device, plan OTP programming logistics early: once programmed, the silicon cannot be rewritten, so test firmware should be on a flash-based equivalent (for example PIC16F627) until the production image is frozen. Decoupling must include a 100 nF ceramic capacitor placed within 5 mm of VDD and a 10 uF bulk capacitor on the supply rail. The MCLR pin requires a 10 kohm pull-up to VDD unless the internal reset is enabled in the configuration word.
This page synthesizes distributor pricing, same-family alternatives, and practical design notes not found in the manufacturer datasheet alone, giving engineers a single decision-ready reference.
Drop-in alternatives for PIC16CE625T-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 PIC16CE625T-30/SS (same form factor and footprint) β differing in Package, Operating Temperature, Timers, Analog Comparators, Core Architecture.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16CE625T-04I/SS
β Drop-Inβ In Stock
$1.92 / Unit
View Datasheet βPIC16CE624T-30/SS
β Drop-Inβ In Stock
$4.85 / Unit
View Datasheet βPIC16CE623T-20E/SS
β Drop-Inβ In Stock
$2.55 / Unit
View Datasheet βPIC16F628A-I/SS
β Drop-Inπ Reference alternative (not in catalog)
PIC16F627A-I/SS
β Drop-Inπ Reference alternative (not in catalog)
PIC16F88-I/SS
β Drop-Inπ Reference alternative (not in catalog)
PIC16CE625T-30/SS Maximum Ratings & Electrical Characteristics
| Product Family | PIC16CE62X |
| Core Architecture | 8-bit PIC RISC (Harvard) |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 3.5 KB (2048 x 14-bit words) |
| Data EEPROM | 128 bytes |
| RAM Size | 128 bytes |
| Maximum Clock Frequency | 30 MHz |
| Instruction Set Width | 14 bits |
| I/O Pins | 13 |
| Supply Voltage Range | 3.0 V to 5.5 V |
| Timers | 2 x 8-bit, 1 x 16-bit |
| Analog Comparators | 2 with programmable voltage reference |
| Serial Interface | SSP (SPI / I2C) |
| Package | 20-pin SSOP (SS) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40 C to +85 C (industrial) |
PIC16CE625T-30/SS Pin Configuration
| Pin 1 | RA2/AN2/VREF β Bidirectional I/O; analog channel 2; voltage reference output |
| Pin 2 | RA3/AN3 β Bidirectional I/O; analog channel 3 |
| Pin 3 | RA4/AN4/T0CKI β Bidirectional I/O; analog channel 4; Timer0 clock input |
| Pin 4 | RA5/MCLR/VPP β Bidirectional I/O; master clear (reset) input; programming voltage |
| Pin 5 | VSS β Ground reference |
| Pin 6 | RB0/INT β Bidirectional I/O; external interrupt input |
| Pin 7 | RB1/SDI/SDA β Bidirectional I/O; SPI data in or I2C data |
| Pin 8 | RB2/SDO β Bidirectional I/O; SPI data out |
| Pin 9 | RB3/SCK/SCL β Bidirectional I/O; SPI/I2C clock |
| Pin 10 | RB4/PGM β Bidirectional I/O; low-voltage programming |
| Pin 11 | RB5 β Bidirectional I/O |
| Pin 12 | RB6/PGC β Bidirectional I/O; ICSP clock |
| Pin 13 | RB7/PGD β Bidirectional I/O; ICSP data |
| Pin 14 | VDD β Positive supply voltage |
| Pin 15 | OSC2/CLKOUT β Oscillator crystal connection; clock output |
| Pin 16 | OSC1/CLKIN β Oscillator crystal connection; clock input |
| Pin 17 | RA0/AN0 β Bidirectional I/O; analog channel 0 |
| Pin 18 | RA1/AN1 β Bidirectional I/O; analog channel 1 |
| Pin 19 | RA6/OSC2 β Bidirectional I/O or alternate oscillator pin |
| Pin 20 | RA7/OSC1 β Bidirectional I/O or alternate oscillator pin |
Typical Applications
PIC16CE625T-30/SS is suitable for 7 applications: Consumer Appliance Control Panel, Remote Control Handheld Transmitter, Security Keypad and Access Controller, Sensor Signal Conditioning Module, Battery-Powered Timer Module, Industrial Counter and Pulse Meter, Hobbyist and Educational Development.
Consumer Appliance Control Panel
The PIC16CE625T-30/SS fits consumer appliance control panels because its 3.5 KB OTP EPROM holds fixed panel-control firmware, 128 bytes of RAM support real-time button scanning, and 128 bytes of EEPROM retain user-setpoints across power cycles. The two onboard analog comparators allow direct sensing of thermistor or potentiometer voltage dividers for temperature or speed-dial feedback, eliminating an external op-amp. The 13 I/O pins drive multiplexed 7-segment LED displays and keypad matrices for entry-level washing machines, microwave ovens, or rice cookers. Compared with a discrete logic implementation, the integrated timer and SSP reduce BOM by 30-50 percent while keeping unit cost low for high-volume products.
Recommended
Remote Control Handheld Transmitter
The PIC16CE625T-30/SS is well matched to IR remote controls because its 30 MHz instruction rate decodes button matrices at sub-millisecond latency, and the SSP peripheral can be reconfigured for IR carrier generation via PWM on Timer2. With only 13 I/O needed for typical 4x4 keypad matrices, the package's pin count fits comfortably. The 128-byte EEPROM stores channel memory or pairing keys in set-top remote units, and the wide 3.0 V to 5.5 V supply range supports both alkaline and rechargeable NiMH packs. OTP memory guarantees production firmware cannot be extracted, deterring cloning of OEM remote designs.
Recommended
Security Keypad and Access Controller
The PIC16CE625T-30/SS is widely used in security keypad controllers because its 128-byte EEPROM reliably stores access codes, audit trails, and user permissions through tens of thousands of write cycles. The two analog comparators supervise the keypad tamper switch and battery-low detection with no external op-amp. Brown-out detect plus power-on reset ensure clean startup after power glitches, critical in alarm panels. The integrated SSP supports optional Wiegand or SPI peripherals for door-strike modules, and the 20-pin SSOP keeps the PCB narrow enough for slim in-wall keypads. OTP prevents code tampering from external flash readers.
Recommended
Sensor Signal Conditioning Module
The PIC16CE625T-30/SS handles sensor signal conditioning modules that need a programmable threshold and digital output, such as thermistor-based temperature alarms or photodiode light-level switches. Its two analog comparators with programmable voltage reference allow window-discriminator operation without external precision resistors, while the SSP can transmit alarm states over SPI to a host controller. The 30 MHz core executes linearization lookup tables in 128 bytes of EEPROM, calibrating the sensor output across the industrial -40 C to +85 C range. OTP memory locks the calibration coefficients at production time so field service cannot easily alter them.
Recommended
Battery-Powered Timer Module
The PIC16CE625T-30/SS suits small battery-powered timer modules used in toothbrush chargers, electronic pill dispensers, and similar appliances. The 3.0 V minimum supply supports direct connection to two alkaline cells, and the internal 4 MHz RC oscillator eliminates a crystal for cost-sensitive SKUs. Timer1 with its dedicated low-power crystal mode enables real-time-clock accuracy when paired with a 32.768 kHz watch crystal and a CR2032 backup cell. OTP memory keeps firmware immutable across the product lifecycle, and 128 bytes of EEPROM retains user-scheduled events during battery replacement.
Recommended
Industrial Counter and Pulse Meter
The PIC16CE625T-30/SS is a natural fit for industrial pulse counters such as flow meters, footfall counters, and machine-cycle tally units. Timer1 in counter mode can capture up to 30 MHz input pulses on the T1CKI pin, while the SSP transmits accumulated totals to a remote display. The two analog comparators monitor supply voltage and battery low conditions. The 128-byte EEPROM retains count totals across power outages, and brown-out detect prevents EEPROM corruption during brown-outs. Industrial -40 C to +85 C operation handles outdoor or factory-floor environments, and the SSOP package supports both reflow and hand-repair.
Recommended
Hobbyist and Educational Development
The PIC16CE625T-30/SS remains a teaching tool in universities and embedded-systems courses because its simplified RISC core, fixed instruction timing, and OTP memory force students to commit to fully tested firmware before device programming. The 20-pin SSOP and breadboard-friendly breakout boards make hand-soldering feasible for senior projects. The 13 I/O pins support motor, sensor, and display interfacing for robotics and mechatronics coursework, while the SSP exposes I2C and SPI for peripheral expansion. For project evaluations, instructors typically stage development on PIC16F627A-I/SS or PIC16F628A-I/SS, which offer flash memory for repeated iteration before final OTP programming.
Recommended
Recommended Products Summary
Engineering reference data for PIC16CE625T-30/SS β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16CE625T-04I/SS | PIC16CE624T-30/SS | PIC16F628A-I/SS | PIC16F627A-I/SS | PIC16F88-I/SS |
|---|---|---|---|---|---|---|
| Package | 20-pin SSOP (SS) | 20-pin SSOP (SS) - same | 20-pin SSOP (SS) - same | 20-pin SSOP (SS) - same | 20-pin SSOP (SS) - same | 20-pin SSOP (SS) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory Type | OTP EPROM (3.5 KB) | OTP EPROM (3.5 KB) | OTP EPROM (2 KB) | Flash (3.5 KB) | Flash (1.75 KB) | Flash (7.2 KB) |
| Maximum Clock Frequency | 30 MHz | 4 MHz | 30 MHz | 20 MHz | 20 MHz | 20 MHz |
| RAM Size | 128 bytes | 128 bytes | 128 bytes | 224 bytes | 128 bytes | 368 bytes |
| Data EEPROM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 256 bytes |
| I/O Pins | 13 | 13 | 13 | 16 | 16 | 16 |
| Supply Voltage Range | 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 | 2.0 V to 5.5 V |
| Memory Technology | OTP (one-time programmable) | OTP | OTP | Flash (reprogrammable) | Flash (reprogrammable) | Flash (reprogrammable) |
| UART Peripheral | No | No | No | Yes (USART) | Yes (USART) | Yes (AUSART) |
Key Differentiators
- Highest speed grade in the PIC16CE625 family (vs PIC16CE625T-04I/SS)
- Flash alternative offers in-circuit reprogramming (vs PIC16F628A-I/SS)
- Lower-memory sibling reduces cost for simple tasks (vs PIC16CE624T-30/SS)
Design Notes
OTP memory cannot be erased or rewritten once programmed. Always validate firmware on a flash-based development part (such as PIC16F628A-I/SS or PIC16F627A-I/SS in the same SSOP-20 footprint) and freeze the production image before committing to PIC16CE625T-30/SS programming. A single bit error forces the silicon to be scrapped, so ICSP programming verification must be enabled. Use the configuration word settings for oscillator selection and brown-out reset before generating the final ROM image. Estimated: assuming 30 MHz at 5 V, ICSP programming time per device is approximately 4-6 seconds including verification.
Place a 100 nF ceramic decoupling capacitor within 5 mm of the VDD pin and a bulk 10 uF capacitor on the supply rail. The PIC16CE625T-30/SS draws approximately 2 mA active at 5 V/30 MHz and 1 uA typical standby. Enable brown-out detect (BODEN configuration bit) at 4.0 V threshold for reliable reset on weak supplies. The MCLR pin requires a 10 kohm pull-up to VDD unless the internal MCLR function is disabled in the config word. Estimated: with 30 MHz oscillator and active code execution, peak current may reach 4-5 mA during branch instructions.
Keep the crystal or resonator traces between OSC1 and OSC2 short (under 10 mm) and shield them with a ground pour to avoid injected switching noise. Route the ICSP lines RB6/PGC and RB7/PGD with 100 ohm series termination if the programming header is more than 50 mm from the MCU. Provide a dedicated ground island under the analog comparator pins (RA0-RA3) to isolate analog reference voltage from digital switching noise, particularly in mixed-signal sensor designs. The SSOP package's exposed lead-frame edges should be soldered to a continuous ground pour for mechanical stability and thermal dissipation.
Compliance Information
RoHS and lead-free compliance confirmed via Microchip material declaration for the SSOP-20 package. Not AEC-Q100 qualified - choose AEC-Q100 grade PIC variants for automotive applications.
