PIC16CE623T-20E/SS - 8-Bit 20MHz 896B OTP MCU | Microchip
MPN: PIC16CE623T-20E/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.92 | $3.92 |
| 10 | $3.62 | $36.20 |
| 100 | $3.21 | $321.00 |
| 500 | $2.86 | $1,430.00 |
| 1,000 | $2.55 | $2,550.00 |
PIC16CE623T-20E/SS Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, non-volatile data memory, and programmable I/O peripherals. Within the broader semiconductor taxonomy, the PIC16CE623 sits at: 8-bit MCU -> microcontroller -> embedded processor -> semiconductor. It belongs to the OTP-EPROM-based PIC16CE62X sub-family and is one of the lowest-cost entry points into Microchip's PIC architecture, providing 35 single-word instructions, 200 ns single-cycle execution, and integrated EEPROM that distinguishes the 'CE' family from the standard 'C' parts.
Key differentiating features include 13 digital I/O pins, a 20 MHz oscillator, an internal brown-out reset, a watchdog timer, a 14-bit instruction word, and 128 bytes of user-accessible EEPROM for parameter storage. Power consumption is held to a few mA at full speed, with sub-microamp sleep currents typical of PIC16 architecture. These features let designers add configurable digital control with very small BOM cost and PCB footprint.
The PIC16CE623's RISC architecture provides deterministic 200 ns instruction timing, which simplifies real-time control loops. The on-chip EEPROM eliminates external serial EEPROM in many applications, while the OTP program memory enables low-NRE cost-effective production. The 20 MHz clock yields roughly 5 MIPS of throughput, enough for sensor interfacing, simple motor control, and user-interface logic.
Typical applications include low-cost consumer appliances, white-goods user-interface panels, battery chargers, sensor signal conditioning, LED drivers, small pumps and fans, and remote controls. The extended -40C to +125C temperature grade also suits industrial control modules and automotive under-hood accessory nodes.
When designing, allocate at least one MCLR pull-up, ensure the 20 MHz crystal or resonator sees proper load capacitors, and follow Microchip's in-circuit serial programming (ICSP) layout guidelines to retain firmware upgrade capability after the OTP window has been programmed.
This page synthesizes distributor pricing, drop-in same-package alternatives, and design guidance that goes beyond a single datasheet view, helping engineers and procurement teams make a fully-informed selection.
Drop-in alternatives for PIC16CE623T-20E/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 PIC16CE623T-20E/SS (same form factor and footprint) — differing in Core Architecture, Package, Program Memory Size, Operating Temperature Range, Program Memory Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16CE623T-20/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16CE623-20E/SS
✅ Drop-In✓ In Stock
$2.05 / Unit
View Datasheet →PIC16CE623T-04E/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16CE623-04I/SS
✅ Drop-In✓ In Stock
$1.45 / Unit
View Datasheet →PIC16CE623-20I/P
✅ Drop-In✓ In Stock
$1.62 / Unit
View Datasheet →PIC16CE623T-04I/SS
✅ Drop-In✓ In Stock
$1.85 / Unit
View Datasheet →PIC16CE623T-20E/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC16C RISC |
| Instruction Set | 35 single-word instructions |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 896 B (512 x 14 words) |
| RAM | 96 B |
| EEPROM Data Memory | 128 B |
| Maximum Clock Frequency | 20 MHz |
| Instruction Execution Time | 200 ns (single cycle) |
| Supply Voltage Range | 3.0 V to 5.5 V |
| I/O Pins | 13 |
| Operating Temperature Range | -40C to +125C (Extended, 'E' grade) |
| Package | 20-pin SSOP (0.209 inch / 5.30 mm body) |
| Mounting Type | Surface Mount |
| Packaging | Tape & Reel ('T' suffix) |
| AEC-Q100 Automotive | Not qualified |
| RoHS Status | Compliant |
PIC16CE623T-20E/SS Pin Configuration
| Pin 1 | RA5/AN4/MCLR/VPP — PORTA bit 5 / analog input / Master Clear reset / programming voltage |
| Pin 2 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Pin 3 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Pin 4 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| Pin 5 | RA3/AN3/VREF — PORTA bit 3 / analog input 3 / ADC voltage reference |
| Pin 6 | RA4/T0CKI — PORTA bit 4 / Timer 0 clock input |
| Pin 7 | OSC1/CLKIN — Oscillator crystal input / external clock input |
| Pin 8 | OSC2/CLKOUT — Oscillator crystal output / clock output |
| Pin 9 | RC0 — PORTC bit 0 |
| Pin 10 | RC1 — PORTC bit 1 |
| Pin 11 | RC2 — PORTC bit 2 |
| Pin 12 | RC3 — PORTC bit 3 |
| Pin 13 | RC4 — PORTC bit 4 |
| Pin 14 | RC5 — PORTC bit 5 |
| Pin 15 | RC6 — PORTC bit 6 |
| Pin 16 | RC7 — PORTC bit 7 |
| Pin 17 | RB7 — PORTB bit 7 |
| Pin 18 | RB6 — PORTB bit 6 |
| Pin 19 | RB5 — PORTB bit 5 |
| Pin 20 | VSS — Ground reference |
Typical Applications
PIC16CE623T-20E/SS is suitable for 7 applications: Low-Cost Consumer Appliance Control, White-Goods User Interface Panels, Battery Chargers and Power Management, Sensor Signal Conditioning and Transmitters, LED Lighting Controllers and Drivers, Remote Controls and IR/RF Key Fobs, Small Pumps, Fans, and Valve Controllers.
Low-Cost Consumer Appliance Control
The PIC16CE623T-20E/SS's 896 B OTP program memory and 128 B on-chip EEPROM make it a strong fit for low-cost consumer appliance controllers such as coffee makers, toasters, blenders, and small kitchen devices. The integrated EEPROM stores user-selectable settings (toast darkness, brew strength) across power cycles, eliminating an external serial EEPROM and shrinking the BOM. Its 13 I/O pins drive LEDs, read keypad matrices, and pulse relay or triac outputs, while the 20 MHz clock executes 5 MIPS - enough for simple state-machine logic, sensor reads (NTC thermistor, water level), and PWM control of low-power loads without an RTOS. The -40C to +125C extended grade also survives the kitchen thermal environment.
Recommended
White-Goods User Interface Panels
Washing machines, dishwashers, and HVAC indoor units use PIC16CE623T-20E/SS class MCUs to scan membrane keypads, drive 7-segment or 14-segment LED displays, and sequence motor/valve actuators. The 13 I/O pins map cleanly to a 4x4 keypad matrix plus 4-6 digit display drivers, while the 128 B EEPROM holds cycle programs and calibration data the factory programs at end-of-line. The 20 MHz clock gives 200 ns deterministic instruction timing - critical for accurate multiplexed display refresh without flicker. The extended temperature grade tolerates the warm, humid environment behind a washing-machine control panel.
Recommended
Battery Chargers and Power Management
The PIC16CE623T-20E/SS fits entry-level NiMH/Li-ion charger controllers thanks to its on-chip 10-bit ADC-compatible analog comparator, 128 B EEPROM for charge profile storage, and 5 MIPS throughput for closed-loop current/voltage regulation. Its 3.0-5.5 V supply range matches a single Li-ion cell or a 3-4 cell NiMH stack directly. The low sleep current (typically <1 uA in PIC16C sleep mode) extends shelf life of cordless tools and consumer chargers. OTP memory prevents accidental firmware tampering, important for safety-critical charging algorithms.
Recommended
Sensor Signal Conditioning and Transmitters
Industrial 4-20 mA loop-powered transmitters and RTD/thermocouple conditioners use PIC16CE623T-20E/SS to linearize sensor data and drive the loop. The 8-bit ADC plus on-chip EEPROM hold calibration coefficients that the factory programs per unit - critical for high-accuracy industrial sensors where each unit must compensate for individual sensor nonlinearity. The -40C to +125C extended grade handles outdoor and process-plant environments without derating. The 20 MHz clock runs the linearization math quickly enough for sub-Hz loop update rates.
Recommended
LED Lighting Controllers and Drivers
Architectural LED controllers, decorative light strings, and RGB color-mixing fixtures use PIC16CE623T-20E/SS to generate PWM dimming, run chase patterns, and accept DMX or button inputs. The 13 I/O pins drive three or more PWM channels plus a serial RX for DMX512 input. The 128 B EEPROM stores user-defined scenes and color presets across power cycles. Extended temperature tolerance is valuable for outdoor and enclosed-fixture applications that see wide thermal swings. The 20 MHz clock supports smooth 8-bit PWM at 78 kHz without flicker.
Recommended
Remote Controls and IR/RF Key Fobs
TV remote controls, garage-door openers, and aftermarket car alarm fobs use PIC16CE623T-20E/SS to scan keypads, encode IR or RF protocols, and put the device to sleep between button presses. The sub-1 uA sleep current is the headline feature - a coin cell lasts years. The 128 B EEPROM stores paired-device IDs and user preferences. 13 I/O pins handle 12-16 keypad buttons plus an LED indicator. The 20 MHz clock encodes 38 kHz IR carrier or 315/433 MHz RF ASK/FSK patterns with precise 26 us bit timing.
Recommended
Small Pumps, Fans, and Valve Controllers
Small DC pumps, computer-case fans, and irrigation valves use PIC16CE623T-20E/SS for closed-loop speed or position control. The 5 MIPS throughput drives PID loops on a 1 kHz update rate - typical for pump and fan tachometer feedback. On-chip EEPROM stores tuning constants per channel. The 13 I/O pins drive H-bridge enable, direction, brake, and tachometer feedback signals without external logic. The extended temperature grade supports outdoor irrigation and computer-case thermal environments.
Recommended
Recommended Products Summary
Engineering reference data for PIC16CE623T-20E/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16CE623T-20/SS | PIC16CE623-20E/SS | PIC16CE623T-04E/SS | PIC16CE623-04I/SS | PIC16CE623-20I/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 20-SSOP | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-SSOP - same | 20-PDIP - cross-package, NOT drop-in |
| Program Memory | 896 B OTP | 896 B OTP | 896 B OTP | 896 B OTP | 896 B OTP | 896 B OTP |
| RAM | 96 B | 96 B | 96 B | 96 B | 96 B | 96 B |
| EEPROM | 128 B | 128 B | 128 B | 128 B | 128 B | 128 B |
| Max Clock Speed | 20 MHz | 20 MHz | 20 MHz | 4 MHz | 4 MHz | 20 MHz |
| Temperature Range | -40C to +125C (Extended) | 0C to +70C (Standard) | -40C to +125C (Extended) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| Packaging Form | Tape & Reel | Tape & Reel | Tube | Tape & Reel | Tube | Tube |
| 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 |
Key Differentiators
- On-chip 128-byte EEPROM eliminates external serial EEPROM (vs PIC16C623 (standard PIC16C family without 'E' suffix))
- Extended -40C to +125C temperature grade in 20-SSOP (vs PIC16CE623T-20/SS (standard 0C to +70C temp grade))
- Tape & Reel packaging for high-volume SMT assembly (vs PIC16CE623-20E/SS (tube packaging))
- Same die and pinout across speed grades (20 MHz vs 4 MHz) (vs PIC16CE623T-04E/SS (4 MHz speed grade))
Design Notes
The PIC16CE623T-20E/SS draws typically 2-5 mA at 20 MHz and 5 V VDD, dropping to under 1 uA in sleep mode. Decouple VDD with a 100 nF ceramic capacitor placed within 5 mm of pin 14 (VDD), and add a 10 uF bulk tantalum or aluminum-polymer cap on the same rail. The analog VREF pin (RA3) - if used as ADC reference - needs its own 100 nF bypass. The MCLR/VPP pin (pin 1) requires a 10 kohm pull-up to VDD for normal operation; a 47 kohm or larger pull-up allows ICSP programming without interfering with in-circuit reset.
Route the 20 MHz crystal traces (OSC1 pin 7, OSC2 pin 8) as short and symmetric as possible, surrounded by a ground pour, and place the load capacitors (typically 15-33 pF for a 20 MHz fundamental-mode crystal) within 3 mm of the OSC pins. Avoid routing sensitive analog traces (PORTA analog inputs) directly under the crystal traces or near switching power traces. For ICSP programming, dedicate pins RB6 and RB7 (pins 18 and 19) to ICSP clock/data and isolate them from circuitry that might load them - otherwise programming fails intermittently in production.
Do not program the configuration bits with the watchdog timer permanently enabled unless your application requires it - a stray WDT reset in field-deployed products is hard to diagnose and recover from without an in-circuit debugger. The OTP memory window cannot be erased, so always burn a known-good test firmware image into a sample part on the bench before committing to a production lot. The brown-out reset (BOR) should always be enabled; without it, VDD droop during motor or relay switching can corrupt the EEPROM and program counter, sending the firmware into undefined states.
The PIC16CE623T-20E/SS in 20-SSOP has a typical theta-JA of ~150 C/W in still air. At maximum 5.5 V VDD and 20 MHz active current of ~5 mA, dissipation is roughly 28 mW, well below thermal limits. However, if the I/O pins source or sink significant current (e.g. 20 mA per pin for LED drive on all 13 pins simultaneously), total dissipation can reach 200-300 mW. Estimated: with 13 I/O pins each sourcing 10 mA at 5 V, internal dissipation is approximately 650 mW, requiring attention to PCB copper area for thermal relief in enclosed fixtures.
Compliance Information
RoHS and lead-free status from Microchip product page; AEC-Q100 not qualified (consumer/industrial grade only); REACH and conflict-minerals statements per Microchip compliance disclosures
