PIC16CE624-20E/SO - 8-bit 20MHz OTP MCU, 1.75KB | Microchip
MPN： PIC16CE624-20E/SO ✓ 啟用中PIC16CE624-20E/SO 概覽
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (program + data), and programmable I/O peripherals. The PIC16C/PIC16CE series sits in the Microchip 'mid-range' 8-bit family — one tier above the baseline PIC10/PIC12 line — and is designed for low-cost, deterministic control in appliance, industrial, and automotive-entry applications. Within that hierarchy, this OTP variant uses one-time-programmable program memory (not re-flashable in-circuit), which lowers die cost and suits closed production runs; Flash-based PIC16F equivalents are preferred for new designs requiring field firmware updates.
Key differentiating specifications include a 200 ns instruction cycle (one cycle per instruction except branches, which take two), only 35 single-word instructions to learn, and a wide operating voltage range of 3.0V to 5.5V that lets the same part power from a 3.3V regulated rail or a freshly regulated 5V supply. The integrated pair of comparators and programmable voltage reference (PVR) provide a complete analog comparator subsystem for sensor thresholding, battery voltage monitoring, or simple SMPS feedback without external op-amps.
Typical applications span appliance control boards, automotive body modules, industrial sensor interfaces, and consumer white-goods subsystems where deterministic execution, an EEPROM-backed non-volatile parameter store, and small footprint matter more than raw CPU throughput. Designers often select the PIC16CE624 for cost-down redesigns where code has already been qualified on the OTP PIC16C62X architecture. The 18-SOIC package is friendly to hand-soldering and to through-hole-style SOIC prototyping boards, which accelerates prototype cycles.
A key design consideration is that OTP memory cannot be reprogrammed in-circuit, so production-grade code should be locked and validated against the datasheet before volume ordering. For new designs that need ISP (in-system programming) or future firmware revisions, the PIC16F627A-I/SO or PIC16F628A-I/SO Flash-based cousins are the typical drop-in upgrade path with the same 18-pin pinout.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on a single manufacturer datasheet, presenting them side-by-side for faster component selection.
直接替換替代品，適用於 PIC16CE624-20E/SO — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： PIC16CE624-20E/SO （相同外形與佔位） — 差異在於 Package, Core Architecture, Instruction Cycle Time, Program Memory Size, Program Memory Type.
PIC16CE624T-20E/SO
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16CE624-20I/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC16CE624-04I/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC16CE625-20E/SO
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16CE626-20E/SO
✅ 直接替換📋 參考替代品（不在目錄中）
PIC16F627A-I/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC16F628A-I/SO
✅ 直接替換聯絡詢價
查看資料表 →PIC16CE624-20E/SO 最大額定值與電氣特性
| Core Architecture | PIC 8-bit RISC (Mid-Range) |
| Program Memory Type | OTP (One-Time Programmable) EPROM-based |
| Program Memory Size | 1.75 KB (1K x 14) |
| RAM | 96 bytes |
| EEPROM Data Memory | 128 bytes |
| Max CPU Clock Frequency | 20 MHz |
| Instruction Cycle Time | 200 ns (single-cycle); 400 ns for branches |
| Instruction Set Size | 35 single-word instructions |
| Operating Voltage Range | 3.0 V to 5.5 V |
| I/O Pins | 13 |
| On-Chip Comparators | 2 |
| Programmable Voltage Reference | Yes (PVR) |
| 工作溫度範圍 | -40 C to +125 C (Extended industrial 'E' grade) |
| 封裝 | 18-pin SOIC (SO) |
| 安裝類型 | Surface Mount (Gull-wing) |
| Oscillator Support | External crystal/ceramic resonator or RC |
| RoHS 狀態 | Compliant (per DigiKey product listing) |
PIC16CE624-20E/SO 腳位配置
| 腳位 1 | RA2 — Bidirectional digital I/O port A bit 2 |
| 腳位 2 | RA3 — Bidirectional digital I/O port A bit 3; can serve as comparator reference input |
| 腳位 3 | RA4 — Bidirectional digital I/O port A bit 4 (open-drain); also T0CKI clock input |
| 腳位 4 | RA5 — Bidirectional digital I/O port A bit 5; also comparator output |
| 腳位 5 | VSS — Ground reference |
| 腳位 6 | RB0 — Bidirectional digital I/O port B bit 0; external interrupt |
| 腳位 7 | RB1 — Bidirectional digital I/O port B bit 1 |
| 腳位 8 | RB2 — Bidirectional digital I/O port B bit 2 |
| 腳位 9 | RB3 — Bidirectional digital I/O port B bit 3 |
| 腳位 10 | RB4 — Bidirectional digital I/O port B bit 4 |
| 腳位 11 | RB5 — Bidirectional digital I/O port B bit 5 |
| 腳位 12 | RB6 — Bidirectional digital I/O port B bit 6 |
| 腳位 13 | RB7 — Bidirectional digital I/O port B bit 7 |
| 腳位 14 | VDD — Positive supply voltage (3.0 V to 5.5 V) |
| 腳位 15 | OSC2 — Oscillator output; connects to crystal/ceramic resonator |
| 腳位 16 | OSC1 — Oscillator input; connects to crystal/ceramic resonator or external clock |
| 腳位 17 | RA0 — Bidirectional digital I/O port A bit 0; also comparator 1 input |
| 腳位 18 | RA1 — Bidirectional digital I/O port A bit 1; also comparator 2 input |
典型應用
PIC16CE624-20E/SO 適用於 7 應用s: Appliance Control Boards, Industrial Sensor Interfaces, Automotive Body Electronics (Entry-Level), Consumer White-Goods Subsystems, SMPS and Power-Conditioning Auxiliary Control, HVAC and Building-Automation Nodes, Low-Cost Battery-Operated Devices.
Appliance Control Boards
The PIC16CE624-20E/SO is widely used in appliance control boards (washing machines, dishwashers, microwave ovens) where deterministic 200 ns instruction execution and on-chip EEPROM matter more than raw MIPS. Its 128 bytes of on-chip EEPROM store calibration and cycle-counter parameters across power cycles without an external NVM IC, while the two on-chip analog comparators enable direct interface to line-voltage-zero-cross sensors and motor-current-sense resistors. The wide 3.0 V to 5.5 V supply range lets the same part run from a 5 V or 3.3 V regulated rail, simplifying multi-variant SKU boards. OTP memory is appropriate here because appliance firmware is locked at production and rarely field-updated.
推薦
Industrial Sensor Interfaces
In industrial sensor-interface modules (proximity, level, temperature, photoelectric), the PIC16CE624-20E/SO provides 13 digital I/O lines plus two on-chip comparators that front-end analog sensor signals without an external op-amp. The integrated programmable voltage reference sets precise comparator thresholds from a single resistor divider, supporting low-cost threshold-detection designs. The extended -40 C to +125 C temperature grade makes it suitable for factory-floor enclosures and outdoor sensor pods. OTP memory is acceptable because sensor-interface firmware is qualified once and deployed in volume with minimal revision risk.
推薦
Automotive Body Electronics (Entry-Level)
The PIC16CE624-20E/SO serves entry-level automotive body modules - seat controllers, mirror adjusters, lighting drivers, and HVAC damper controls - where its extended -40 C to +125 C temperature grade and 5 V supply tolerance handle under-dash and door-module thermal environments. Its 1.75 KB OTP program memory is sufficient for fixed-function body controllers, and the on-chip EEPROM stores trim and learned-position parameters. For modules above 60 C continuous ambient where thermal headroom is critical, the SOIC package's copper-land thermal pad must be sized to keep junction temperature within spec; this is a layout-driven design consideration.
推薦
Consumer White-Goods Subsystems
Consumer white-goods subsystems (coffee makers, blenders, robotic vacuums, air purifiers) deploy the PIC16CE624-20E/SO for cost-sensitive control where the 35-instruction PIC mid-range core reduces firmware qualification cost. The 1.75 KB OTP holds fixed-function control code, the 128-byte EEPROM stores user preferences, and the two comparators monitor motor-current and over-temperature sensors directly. The 18-pin SOIC package is friendly to single-sided consumer PCBs, allowing compact enclosures. OTP keeps BOM cost low because white-goods firmware rarely changes after launch.
推薦
SMPS and Power-Conditioning Auxiliary Control
The PIC16CE624-20E/SO is used as an auxiliary controller in small SMPS, battery chargers, and power-conditioning modules where its programmable voltage reference and comparators provide primary-side regulation feedback without an external error amplifier. The 5 V supply tolerance suits bootstrap-derived auxiliary rails, and the 200 ns deterministic instruction cycle supports fixed-frequency PWM generation via software-toggled I/O. OTP memory is appropriate because production-grade SMPS firmware is locked once the design passes EMC and safety certification, with no field reprogramming expected.
推薦
HVAC and Building-Automation Nodes
Building-automation nodes - HVAC damper actuators, smart-thermostat sub-controllers, and occupancy-sensor hubs - leverage the PIC16CE624-20E/SO's low component count and wide operating voltage to simplify node electronics. The two on-chip comparators interface directly to thermistor bridges and PIR motion sensors, while the 13 I/O lines drive relays, triac interfaces, and serial links to a building bus controller. The extended temperature grade covers unconditioned equipment rooms and rooftop enclosures. The 18-SOIC footprint remains stable across the PIC16CE62X family, allowing board reuse from PIC16CE624 through PIC16CE626 as firmware size grows.
推薦
Low-Cost Battery-Operated Devices
In low-cost battery-operated devices (remote controls, electronic locks, simple sensor tags), the PIC16CE624-20E/SO supports sleep-mode operation that drops quiescent current to the microampere range, extending battery life. The 3.0 V minimum supply lets it run directly from a single CR2032 lithium coin cell or two AA alkaline cells, while the on-chip EEPROM preserves user settings across battery replacement. The two comparators wake the part from sleep on analog threshold crossings without an external interrupt controller, lowering BOM cost for high-volume consumer products.
推薦
推薦產品摘要
工程參考資料，適用於 PIC16CE624-20E/SO — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 | PIC16CE624T-20E/SO | PIC16CE624-20I/SO | PIC16CE625-20E/SO | PIC16CE626-20E/SO | PIC16F627A-I/SO |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 18-SOIC | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same | 18-SOIC - same |
| Program Memory | 1.75 KB OTP | 1.75 KB OTP | 1.75 KB OTP | 3.5 KB OTP | 7.2 KB OTP | 1.75 KB Flash |
| RAM | 96 bytes | 96 bytes | 96 bytes | 128 bytes | 176 bytes | 128 bytes |
| EEPROM Data Memory | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes | |
| Max Clock Frequency | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz | 20 MHz |
| 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 (wider) |
| Temperature Grade | Extended -40 C to +125 C | Extended -40 C to +125 C | Industrial -40 C to +85 C | Extended -40 C to +125 C | Extended -40 C to +125 C | Industrial -40 C to +85 C |
| On-chip Comparators / PVR | 2 comparators + PVR | 2 comparators + PVR | 2 comparators + PVR | 2 comparators + PVR + USART | ||
| Program Memory Type | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM | Flash (ISP) |
主要差異化特點
- 128 bytes of on-chip EEPROM data memory (對比PIC16C624-20E/SO)
- Extended -40 C to +125 C temperature grade in standard product (對比PIC16F627A-I/SO)
- Lower die cost versus Flash equivalents (對比PIC16F627A-I/SO)
設計說明
OTP program memory cannot be re-programmed in-circuit - once a PIC16CE624 is programmed and code-locked, the firmware is fixed. Final firmware must be validated against the datasheet electrical characteristics and the actual PCB environment (crystal load capacitance, supply decoupling) before committing to volume programming. For prototypes or designs needing late-stage firmware revision, choose the Flash-based PIC16F627A-I/SO drop-in instead, and migrate the layout when firmware stabilizes.
Place a 0.1 uF decoupling capacitor as close as physically possible to the VDD pin (pin 14), plus a bulk capacitor (typically 10 uF tantalum or aluminum) within 1 cm of the supply pin to suppress switching transients. Keep the OSC1/OSC2 traces short and surround them with a ground pour to avoid coupling digital switching noise into the oscillator loop. For designs using an external crystal, ensure the load capacitors match the crystal's specified load capacitance per the crystal vendor datasheet (typically 15-33 pF).
The PIC16CE624-20E/SO draws typical active current around 2-5 mA at 20 MHz and 5 V, dropping to microampere range in sleep mode. Estimated: at 5 V and 20 MHz the part consumes approximately 2.5 mA active, so a 1 mA sleep mode plus 99 ms sleep + 1 ms active per second yields average current below 50 uA. For battery-powered designs, leverage the sleep mode aggressively and use an on-chip comparator or external interrupt to wake the part on analog events, avoiding polling loops.
The 18-SOIC footprint (0.3-inch / 7.5 mm body width) is hand-soldering-friendly but the SOIC thermal pad is the lead frame only - there is no exposed pad. In thermally constrained environments above 60 C ambient, connect the VDD trace to a copper pour that doubles as a heat-spreader, and avoid routing switching signals directly under the oscillator traces. Pin 5 (VSS) should be tied directly to the ground pour with a wide short trace to provide a low-impedance return path.
The two on-chip comparators and the programmable voltage reference (PVR) generate analog signals that must be kept away from high-frequency digital lines on the PCB. Route comparator input traces and the PVR output divider directly to their respective pins without crossing clock or PWM traces; add a ground guard trace around sensitive analog nodes where board space permits. The internal PVR is ratiometric to VDD, so for absolute threshold accuracy consider an external reference instead.
合規資訊
RoHS and REACH compliance per DigiKey product listing. The 'E' temperature grade is industrial-extended (not full automotive AEC-Q100); for AEC-Q100-qualified automotive applications, choose the PIC16F627A-I/SO automotive grade variant. Halogen-free status not explicitly stated in verified web data.