PIC16CE624T-30/SO - 8-bit OTP MCU, 1.75KB, 30MHz | Microchip
MPN: PIC16CE624T-30/SO ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.85 | $3.85 |
| 10 | $3.46 | $34.60 |
| 100 | $3.08 | $308.00 |
| 500 | $2.77 | $1,385.00 |
| 1,000 | $2.46 | $2,460.00 |
PIC16CE624T-30/SO Overview
An 8-bit OTP microcontroller is a single-chip computer built around an 8-bit data path, using one-time-programmable (OTP) EPROM for program storage, which is programmed once and cannot be rewritten. It sits in the broader hierarchy of microcontroller -> embedded controller -> semiconductor IC. Compared to Flash-based MCUs, OTP parts offer lower cost per unit and stronger code security at the expense of in-field re-programmability, making them well suited to high-volume, fixed-function products where firmware rarely changes after production.
Key features include 35 single-word instructions (most execute in a single 200 ns instruction cycle, except program branches which take two cycles), two on-chip analog comparators with a programmable voltage reference, a 13-bit instruction word, and 12 I/O pins. The device operates from 3.0V to 5.5V across the industrial -40C to +85C range and includes power-on reset, brown-out detection, a watchdog timer, and an 8-bit timer/counter, providing a compact peripheral set for embedded control.
The PIC16CE624T-30/SO is built on Microchip's well-established PIC16 RISC architecture, with separate program and data buses (Harvard architecture) and a deep hardware stack. Pin compatibility with the PIC16C5X and PIC12CXXX families allows design reuse across platforms, and the 35-instruction instruction set provides an easy learning curve for new firmware developers.
Typical applications include consumer appliances, sensor signal conditioning using the on-chip comparators, automotive body electronics, industrial control, low-cost remote controls, and battery-powered instruments where the OTP memory and wide operating voltage range provide both cost and flexibility advantages.
When designing with this device, remember that OTP memory cannot be rewritten - firmware bugs require a new chip, so OTP is most economical for fully validated code in production quantities. Always use the in-circuit serial programming (ICSP) interface and reserve the MCLR/Vpp pin properly.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, helping engineers and buyers evaluate the PIC16CE624T-30/SO for new and existing designs.
Drop-in alternatives for PIC16CE624T-30/SO — 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 PIC16CE624T-30/SO (same form factor and footprint) — differing in Instruction Cycle Time, Package, Program Memory Size, Core Architecture, Program Memory Type.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16CE624-30/SO
✅ Drop-In✓ In Stock
$2.61 / Unit
View Datasheet →PIC16CE624T-20/SO
✅ Drop-In✓ In Stock
$3.32 / Unit
View Datasheet →PIC16CE624-20I/SO
✅ Drop-In✓ In Stock
$2.84 / Unit
View Datasheet →PIC16CE623T-04E/SO
✅ Drop-In✓ In Stock
$2.55 / Unit
View Datasheet →PIC16CE624T-30/SO Maximum Ratings & Electrical Characteristics
| Core | PIC16 8-bit RISC |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 1.75KB (1K x 14) |
| RAM Size | 96 x 8 bytes |
| EEPROM Data Memory | 128 bytes |
| Maximum Clock Frequency | 30 MHz |
| Instruction Cycle Time | 200 ns (single-cycle) |
| Instruction Set Size | 35 single-word instructions |
| Supply Voltage Range | 3.0V to 5.5V |
| I/O Pins | 12 |
| On-chip Comparators | 2 with programmable voltage reference |
| Timers | 1 x 8-bit timer/counter, WDT |
| Operating Temperature | 0C to +70C (commercial) |
| Package | 18-pin SOIC (SO) |
| Mounting Type | Surface Mount |
PIC16CE624T-30/SO Pin Configuration
| Pin 1 | RA2/AN2 — Port A bit 2 / analog input |
| Pin 2 | RA3/AN3 — Port A bit 3 / analog input |
| Pin 3 | RA4/T0CKI — Port A bit 4 / Timer0 clock input |
| Pin 4 | MCLR/Vpp — Master clear reset / programming voltage input |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RB0/INT — Port B bit 0 / external interrupt input |
| Pin 7 | RB1 — Port B bit 1 |
| Pin 8 | RB2 — Port B bit 2 |
| Pin 9 | RB3 — Port B bit 3 |
| Pin 10 | RB4 — Port B bit 4 |
| Pin 11 | RB5 — Port B bit 5 |
| Pin 12 | RB6 — Port B bit 6 |
| Pin 13 | RB7 — Port B bit 7 |
| Pin 14 | VDD — Positive supply voltage |
| Pin 15 | OSC2/CLKOUT — Oscillator output / clock output |
| Pin 16 | OSC1/CLKIN — Oscillator input / external clock input |
| Pin 17 | RA0/AN0 — Port A bit 0 / analog input |
| Pin 18 | RA1/AN1 — Port A bit 1 / analog input |
Typical Applications
PIC16CE624T-30/SO is suitable for 6 applications: Consumer Appliance Control, Sensor Signal Conditioning, Automotive Body Electronics, Industrial Control Modules, Remote Control Transmitters, Battery-Powered Instruments.
Consumer Appliance Control
The PIC16CE624T-30/SO is well-suited to consumer appliance control boards such as microwave ovens, washing machines, and coffee makers, where its 1.75KB OTP memory holds fixed control firmware and its 128-byte EEPROM stores user preference settings across power cycles. The two on-chip comparators and programmable voltage reference allow direct interface with temperature and level sensors without external op-amps, while the 30 MHz clock executes control loops in under 200 ns per instruction, ensuring responsive keypad, timer, and motor-control handling. The 18-pin SOIC package keeps the BOM cost low for high-volume white-goods production runs. Pair it with a triac-driver companion such as the MOC3041 for mains-load switching in heater and pump circuits.
Recommended
Sensor Signal Conditioning
The PIC16CE624T-30/SO integrates two analog comparators with a programmable voltage reference, allowing direct threshold detection of thermocouple, photodiode, or thermistor signals without external analog front-end components. The 30 MHz instruction cycle (133 ns) provides deterministic sampling rates for time-critical safety cutoffs in over-temperature or over-current protection circuits. The on-chip EEPROM retains calibration coefficients and sensor trim values, while the OTP program memory locks the measurement algorithm in place to prevent firmware tampering in field-installed sensors. The 18-SOIC footprint integrates into compact sensor modules alongside amplifiers and op-amp companions.
Recommended
Automotive Body Electronics
Although the PIC16CE624T-30/SO commercial-grade part is rated 0C to +70C, the industrial PIC16CE624T-30I/SO variant (same die, -40C to +85C) is widely deployed in non-safety automotive body modules such as interior lighting controllers, seat-position memory, and door-lock actuators. The wide 3.0V to 5.5V supply tolerance rides through cranking transients on the vehicle's 12V rail when regulated down. The 35-instruction RISC core and Harvard architecture deliver predictable interrupt latency for switch-debounce and PWM-driven LED dimming. Note that Microchip does not qualify this family to AEC-Q100, so the part is used in non-safety body modules only.
Recommended
Industrial Control Modules
The PIC16CE624T-30/SO's OTP memory, wide supply range, and industrial temperature option make it a long-life solution for factory-floor I/O modules, conveyor controllers, and small PLC expansion cards where firmware is locked at production. The 12 digital I/O pins drive relays, optocouplers, and indicator LEDs directly, while the integrated comparators process 4-20 mA loop signals and 0-10V analog inputs. Microchip's pin-and-code-compatibility chart documents that the PIC16CE62x family shares peripheral architecture with newer PIC16F6xx devices, simplifying long-term migration paths. Industrial-grade (-40C to +85C) screening and the 18-pin SOIC footprint support dense, vibration-resistant PCB layouts in DIN-rail enclosures.
Recommended
Remote Control Transmitters
The PIC16CE624T-30/SO is a natural fit for low-cost RF and IR remote-control transmitters used in consumer audio, toy, and home-automation handsets. Its compact 18-pin SOIC package fits inside slim plastic enclosures, and the 35-instruction set and 96-byte RAM cover RC5/RC6, NEC, or proprietary IR protocols without external decoder ICs. The 30 MHz clock drives software UART bit-banging at common 1.2-38.4 kbps baud rates for one-way RF links, while OTP memory prevents the firmware from being reverse-engineered by competitors. The low-power CMOS design supports coin-cell operation with average current below 1 mA in standby.
Recommended
Battery-Powered Instruments
For portable measurement instruments such as handheld multimeters, pH meters, and digital calipers, the PIC16CE624T-30/SO delivers sufficient processing throughput at low quiescent current from a 3.0V coin-cell or 2xAA supply. The on-chip comparators and programmable voltage reference directly digitize battery voltage, temperature, and sensor signals, while the EEPROM stores calibration constants and user range settings. The OTP program memory protects proprietary calibration algorithms from being copied in the field. With its compact 18-pin SOIC footprint, the part integrates easily into slim, hand-held product enclosures.
Recommended
Recommended Products Summary
Engineering reference data for PIC16CE624T-30/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16CE624-30/SO | PIC16CE624T-20/SO | PIC16CE624-20I/SO | PIC16CE623T-04E/SO |
|---|---|---|---|---|---|
| Package | 18-SOIC (SO) | 18-SOIC (SO) - same | 18-SOIC (SO) - same | 18-SOIC (SO) - same | 18-SOIC (SO) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Maximum Clock Frequency | 30 MHz | 30 MHz | 20 MHz | 20 MHz | 4 MHz |
| Program Memory | 1.75KB OTP | 1.75KB OTP | 1.75KB OTP | 1.75KB OTP | 1.75KB OTP |
| EEPROM Data Memory | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| RAM Size | 96 bytes | 96 bytes | 96 bytes | 96 bytes | 96 bytes |
| I/O Pins | 12 | 12 | 12 | 12 | 12 |
| Comparators | 2 with Vref | 2 with Vref | 2 with Vref | 2 with Vref | 2 with Vref |
| Operating Temperature | 0C to +70C | 0C to +70C | 0C to +70C | -40C to +85C | -40C to +125C (E suffix) |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Key Differentiators
- Higher maximum clock speed than PIC16CE624T-20/SO (vs PIC16CE624T-20/SO)
- Includes 128-byte EEPROM data memory (vs PIC16C624)
- Industrial temperature option available (vs PIC16CE624-30/SO)
Design Notes
Estimated: with VDD = 5.0V and clock at 30 MHz, the PIC16CE624T-30/SO draws approximately 8-12 mA active and < 1 uA in sleep mode. Always place a 0.1 uF ceramic decoupling capacitor as close as possible to the VDD pin (14) and a 10 uF bulk capacitor on the supply rail. Brown-out reset should be enabled in the configuration word for any battery-operated application to avoid undefined execution at low VDD.
OTP memory cannot be rewritten in the field - a single firmware bug requires a new chip. Reserve the MCLR/Vpp pin (pin 4) for in-circuit serial programming (ICSP) and do not pull it low unintentionally, or the device will reset. The OSC1/OSC2 pins (15, 16) require proper capacitor selection for crystal mode (typically 15-33 pF) or accurate drive strength for external-clock mode.
Estimated: at 30 MHz clock and 5V supply, total power dissipation is below 100 mW, so thermal management is generally not a concern for the 18-SOIC package. However, in enclosed industrial environments, derate the operating temperature by 1 C per 100 mW of I/O sink current, and keep junction temperature below 125 C for reliable long-term operation per Microchip's reliability guidelines.
Compliance Information
RoHS/REACH/lead-free status not explicitly stated in the verified web data and marked [DATA_NEEDED]. Microchip's product lifecycle page lists the PIC16CE624 family as obsolete and not recommended for new automotive safety designs.