PIC16CE623-30/SS - 8-Bit OTP MCU, 896B, 30MHz SSOP-20 | Microchip
MPN: PIC16CE623-30/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $2.95 | $2.95 |
| 10 | $2.55 | $25.50 |
| 100 | $2.1 | $210.00 |
| 500 | $1.75 | $875.00 |
| 1,000 | $1.45 | $1,450.00 |
PIC16CE623-30/SS Overview
Background Knowledge: A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (ROM/Flash/OTP), data memory (RAM), non-volatile data storage (EEPROM), and configurable peripherals (I/O, timers, comparators, ADC). The PIC16CE623 belongs to Microchip's PIC16 mid-range architecture, descended from the original PIC16C5x baseline. Mid-range PIC MCUs use a Harvard architecture with separate program and data buses, a 14-bit wide instruction word, and a fixed 35-instruction RISC set. They sit within the broader taxonomy: 8-bit MCU -> PIC16 family -> PIC16C6xx sub-family. The 'CE' suffix indicates an integrated EEPROM data memory on-chip, distinguishing it from 'C' parts (no EEPROM) and 'F' parts (Flash program memory).
Key features include 896 bytes OTP program memory, 128 bytes RAM, 128 bytes on-chip EEPROM data memory, 13 digital I/O pins, a 8-bit timer/counter with 8-bit prescaler, an analog comparator, internal/RC oscillator options, and a power-on reset / brown-out detect circuit. The OTP memory is factory one-time-programmable; the on-chip EEPROM supports byte-level endurance of typically 1M erase/write cycles.
The PIC16CE623 uses Microchip's CMOS mid-range architecture with a 14-bit instruction word, single-cycle ALU operations except for program branches (two cycles), and a hardware stack eight levels deep. It supports in-circuit serial programming (ICSP) via two pins, allowing OTP programming and EEPROM verification after PCB assembly. The integrated EEPROM is mapped into the data memory space and accessed via special function registers, eliminating the need for an external serial EEPROM in small data-logging designs.
Typical applications include low-cost appliance control, sensor signal conditioning front-ends, battery chargers, LED drivers, automotive body controllers (non-safety), small motor control, and consumer white-goods replacement of discrete logic. The wide 3.0-5.5V range supports direct connection to 4-cell battery stacks, 3.3V logic systems, and 5V regulated rails.
When designing with this OTP part, plan code carefully before programming - OTP cannot be erased. Reserve adequate code space margin (use only 60-70% of the 896B capacity) and verify the firmware with a windowed UV-erasable PIC16CE623 JW or PIC16CR623 (Flash) prototype first if available. Decouple VDD with 0.1uF close to the pins and route the MCLR/VPP pin through a 10k pull-up for normal operation, with a path to VPP during programming.
This page synthesizes distributor pricing, on-chip EEPROM documentation, and pin-compatible drop-in alternatives for the PIC16CE623-30/SS — information that goes beyond the Microchip datasheet alone.
Drop-in alternatives for PIC16CE623-30/SS — 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 PIC16CE623-30/SS (same form factor and footprint) — differing in Timers, Watchdog Timer, Package, Program Memory Size, Maximum Clock Frequency.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16CE623-30/SO
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$3.32 / Unit
View Datasheet →PIC16CE623-20/SS
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.06 / Unit
View Datasheet →PIC16CE623-20E/SS
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$2.05 / Unit
View Datasheet →PIC16CE623-04I/SS
✅ Drop-In ⚠️ 参数待验证✓ In Stock
$1.45 / Unit
View Datasheet →PIC16F628A-I/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16CE623-30/SS Maximum Ratings & Electrical Characteristics
| Program Memory Size | 896 bytes (OTP) |
| RAM Size | 128 bytes |
| EEPROM Data Memory | 128 bytes |
| CPU Architecture | 8-bit PIC16 mid-range RISC |
| Instruction Set | 35 instructions, 14-bit wide |
| Maximum Clock Frequency | 30 MHz |
| Instruction Cycle Time | 133 ns |
| Supply Voltage (VDD) | 3.0 V to 5.5 V |
| I/O Pins | 13 |
| Timers | 1 x 8-bit Timer0 with prescaler |
| Analog Comparators | Yes (on-chip) |
| Watchdog Timer | Yes |
| Brown-out Reset | Yes |
| Package | 20-pin SSOP (5.30 mm body width) |
| Operating Temperature | -40C to +85C (industrial) |
| Programming Interface | ICSP (In-Circuit Serial Programming) |
| Mounting Type | Surface Mount |
PIC16CE623-30/SS Pin Configuration
| Pin 1 | MCLR/VPP — Master clear (active-low reset) / ICSP programming voltage input |
| Pin 2 | RA0/AN0 — PORTA bit 0 / Analog comparator input 0 |
| Pin 3 | RA1/AN1 — PORTA bit 1 / Analog comparator input 1 |
| Pin 4 | RA2/AN2/VREF — PORTA bit 2 / Analog comparator input 2 / Voltage reference output |
| Pin 5 | RA3/AN3 — PORTA bit 3 / Analog comparator input 3 |
| Pin 6 | RA4/T0CKI — PORTA bit 4 (open-drain) / Timer0 clock input |
| Pin 7 | RA5 — PORTA bit 5 |
| Pin 8 | VSS — Ground reference |
| Pin 9 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| Pin 10 | OSC2/CLKOUT — Oscillator crystal output / clock output (Fosc/4) |
| Pin 11 | RC0 — PORTC bit 0 |
| Pin 12 | RC1 — PORTC bit 1 |
| Pin 13 | RC2 — PORTC bit 2 |
| Pin 14 | RC3 — PORTC bit 3 |
| Pin 15 | RC4 — PORTC bit 4 |
| Pin 16 | RC5 — PORTC bit 5 |
| Pin 17 | RC6 — PORTC bit 6 |
| Pin 18 | RC7 — PORTC bit 7 |
| Pin 19 | VSS — Ground reference |
| Pin 20 | VDD — Positive supply voltage (3.0V to 5.5V) |
Typical Applications
PIC16CE623-30/SS is suitable for 6 applications: Low-Cost Appliance Control, Battery-Powered Sensor Front-End, LED Lighting and Dimmer Controllers, Automotive Body Electronics (Non-Safety), Small Motor Control (Brushed DC, Stepper), Consumer White-Goods Replacement of Discrete Logic.
Low-Cost Appliance Control
The PIC16CE623-30/SS is well suited for low-cost appliance controllers such as toaster ovens, coffee makers, blenders, and small kitchen electronics where the BOM must stay below $3 and code size rarely exceeds 700 bytes. The 896-byte OTP program memory accommodates a single C state-machine handling temperature sensing (via the analog comparator), relay/SSR switching, and button input. The 128-byte on-chip EEPROM stores user-set preferences such as toast shade levels, brew strength, or timer values across power cycles, eliminating an external I2C EEPROM. At a 30 MHz clock with 133 ns instruction cycle, the MCU handles multiplexed 7-segment LED scanning, triac zero-cross timing, and capacitive touch sampling in real time without an RTOS. The SSOP-20 footprint fits on compact PCBs alongside TRIAC drivers and zero-cross detect circuits typical in this segment.
Recommended
Battery-Powered Sensor Front-End
Battery-powered sensor front-ends running on 3.3V coin cells or 4xAA alkaline stacks are an ideal fit for the PIC16CE623-30/SS. Its 3.0-5.5V VDD range covers both chemistries without a separate regulator, and the CMOS mid-range core draws only microamps in sleep mode while the watchdog timer keeps a periodic sampling wake-up. The on-chip analog comparator lets the MCU wake on threshold-crossing events (e.g., temperature rise, gas concentration, or vibration), avoiding the always-on current of an ADC. With 128 bytes of RAM and 128 bytes of EEPROM, the part can buffer 8-16 sensor samples and store calibration constants between firmware revisions. The 30 MHz capability lets it crunch simple DSP-style filtering (moving average, threshold hysteresis) before storing to EEPROM at user intervals. SSOP-20 packaging keeps the MCU footprint under 60 mm^2, allowing the entire sensor node to fit inside a CR2032 holder.
Recommended
LED Lighting and Dimmer Controllers
The PIC16CE623-30/SS drives constant-current LED dimmer topologies in decorative, signage, and architectural lighting. Its 30 MHz instruction cycle is fast enough to generate PWM at 10 kHz+ with < 100 Hz resolution - well above the flicker-fusion threshold for human vision. The 13 I/O pins multiplex 4-8 LED channels using Charlieplexing or scan-matrix techniques, while the analog comparator monitors supply current for over-temperature foldback. On-chip EEPROM stores brightness presets and color-mixing profiles that survive power cycles, useful in DMX-style installations. Operating from 3.0-5.5V supports both 5V regulated supplies and direct 4-cell alkaline stacks. The SSOP-20 footprint enables compact in-fixture driver PCBs.
Recommended
Automotive Body Electronics (Non-Safety)
Non-safety automotive body modules such as interior lighting controllers, door-lock keypads, mirror adjusters, and simple wiper timers are appropriate uses for the PIC16CE623-30/SS. Its -40C to +85C industrial temperature grade handles under-dash and cabin locations (engine-bay modules require AEC-Q100 grade). The 13 I/O pins drive relay coils, monitor switch inputs, and communicate via LIN bus using a software UART on any digital pin. On-chip EEPROM stores user preferences (seat position, mirror angle) without external NVM. OTP program memory prevents reverse engineering of body-module firmware - a security advantage in aftermarket applications. Wide 3.0-5.5V VDD tolerates load-dump and cranking transients when paired with an upstream TVS and bulk capacitor.
Recommended
Small Motor Control (Brushed DC, Stepper)
Small brushed-DC and unipolar stepper motor controllers fit naturally on the PIC16CE623-30/SS. The 30 MHz execution speed supports PWM up to 20 kHz (above audible range) for DC motor speed control, and software-emulated step generation for low-cost stepper sequencing. The 8-bit Timer0 with prescaler handles commutation timing and tachometer feedback. The on-chip analog comparator senses back-EMF for sensorless stall detection on small fans and pumps. Operating from 3.0-5.5V works with both 3.3V logic-level FETs and 5V gate drivers. The SSOP-20 footprint enables integration into 24mm x 24mm motor-control PCBs in fans, vibrators, and small pumps.
Recommended
Consumer White-Goods Replacement of Discrete Logic
The PIC16CE623-30/SS replaces 4-8 discrete 74HC logic ICs in consumer white-goods (washing machines, dishwashers, microwave ovens) where one OTP-programmed MCU plus a handful of drivers is cheaper than a board full of CMOS gates. The 896-byte OTP holds the full state machine: lid-lock sensing, pump timing, motor sequencing, button debouncing, and buzzer PWM. The 13 I/O pins interface with triac zero-cross detectors, mechanical switch arrays, and LED indicator banks. EEPROM on-chip retains cycle counters and error logs for service diagnostics across power cycles. The SSOP-20 footprint allows retro-fitting into existing white-goods control boards without mechanical redesign.
Recommended
Recommended Products Summary
Engineering reference data for PIC16CE623-30/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16CE623-30/SO | PIC16CE623-20/SS | PIC16CE623-20E/SS | PIC16CE623-04I/SS | PIC16F628A-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-pin SSOP (5.30 mm) | 20-pin SOIC (7.50 mm) - different footprint | 20-pin SSOP (5.30 mm) - same | 20-pin SSOP (5.30 mm) - same | 20-pin SSOP (5.30 mm) - same | 20-pin SSOP (5.30 mm) - same |
| Program Memory Type | OTP (896 B) | OTP (896 B) | OTP (896 B) | OTP (896 B) | OTP (896 B) | Flash (4 KB) |
| Max Clock Frequency | 30 MHz | 30 MHz | 20 MHz | 20 MHz | 4 MHz | 20 MHz (Flash grade) |
| Operating 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 | 2.0 V to 5.5 V |
| I/O Pins | 13 | 13 | 13 | 13 | 13 | 16 |
| EEPROM Data Memory | 128 B (on-chip) | 128 B | 128 B | 128 B | 128 B | 128 B (Flash EEPROM emulation) |
| USART / PWM / ADC | none | none | none | none | none | 1 USART, PWM, comparator |
| Operating Temperature | -40C to +85C | -40C to +85C | -40C to +85C | -40C to +125C (extended) | -40C to +85C | -40C to +85C |
Key Differentiators
- On-chip 128-byte EEPROM data memory (vs PIC16C623-30/SS (without 'E' suffix))
- 30 MHz instruction throughput (vs PIC16CE623-04/SS (4 MHz grade))
- OTP program memory for firmware security (vs PIC16F628A-I/SS (Flash))
- Lower unit cost in high-volume production (vs PIC16F628A-I/SS (Flash))
Design Notes
The 'CE' in PIC16CE623 denotes OTP program memory, not Flash. OTP can be programmed only once - there is no erase. Plan the firmware development cycle on a windowed PIC16CE623-04/JW prototype first, then commit the verified firmware to OTP production units. Allow 20-30% unused program memory headroom (use only 600-700 bytes of the 896 B available) to accommodate late-stage bug fixes; a fully packed OTP forces a board re-spin. Also note that VPP (13V nominal) must be applied during ICSP programming through the MCLR pin - design the reset circuit to tolerate the programming voltage without latching upstream circuitry.
Decouple VDD with a 0.1uF ceramic capacitor placed within 5 mm of pin 20, plus a 10uF bulk capacitor on the VDD rail. The PIC16CE623 draws brief supply current spikes on each instruction fetch (OTP read) - insufficient decoupling causes VDD droop and brown-out resets. Connect VSS pins 8 and 19 to a single ground island with multiple vias. MCLR (pin 1) should have a 10k pull-up to VDD for normal operation; during ICSP, the programmer overdrives this pin to VPP (~13V).
The SSOP-20 package has 0.65 mm lead pitch, which is at the lower limit for hand-soldering. Use a reflow profile with peak temperature 245C for no more than 30 seconds, and ensure the PCB land pattern includes solder mask slivers between pads to prevent solder bridging. For prototype boards, consider the PIC16CE623-30/SO SOIC-20 variant which has wider 1.27 mm pitch and is easier to hand-solder or rework. Provide an ICSP header footprint (5-pin: VPP, VDD, VSS, ICSPCLK, ICSPDAT) even on production boards for in-field firmware recovery.
Estimated: At maximum operating frequency (30 MHz) and 5.5V VDD, the CMOS core dissipation is approximately 30 mW (typical) for the PIC16CE623. The SSOP-20 thermal resistance theta_JA is approximately 95 C/W, giving a junction temperature rise of 2.8C above ambient at full load. No heatsink is required - the device is fully rated for industrial -40C to +85C operation in still air. Derate clock frequency above 70C ambient if the application uses the internal RC oscillator at high frequency.
Compliance Information
RoHS and REACH compliant per Microchip product page. Not AEC-Q100 qualified - the PIC16CE623-30/SS is intended for industrial/commercial applications only. For automotive body or chassis use, select a PIC16F1xxx AEC-Q100 grade instead. Lead-free and halogen-free per Microchip material declarations.
