PIC16LC620-04E/SO - 8-Bit 4MHz OTP MCU 18-SOIC | Microchip
MPN: PIC16LC620-04E/SO ✓ פעילPIC16LC620-04E/SO סקירה
What is a PIC 8-bit OTP microcontroller? An OTP (One-Time Programmable) microcontroller is a CMOS device that uses EPROM-based non-volatile program memory, allowing a single factory or production programming cycle. The PIC16C family implements a RISC architecture with only 35 instructions, a two-level deep hardware stack, and direct/indirect/relative addressing. Within the broader semiconductor hierarchy, it sits as: microcontroller -> embedded microcontroller -> CMOS logic IC -> semiconductor. The 'LC' prefix designates a low-power CMOS variant designed for battery-friendly applications.
Key features of the PIC16LC620-04E/SO include a 12-bit wide instruction word and 8-bit wide data path, seven or eight special function hardware registers, brown-out detect and power-on reset peripherals, a programmable watchdog timer, and a wide operating voltage range from 2.5 V to 6.25 V. The 'E' suffix denotes the extended automotive temperature range (-40C to +125C), making this part suitable for harsh environment designs. The 4 MHz maximum clock input yields a 200 ns instruction cycle, providing balanced throughput for low-power embedded control.
The PIC16LC620 architecture uses a Harvard-style bus with separate program and data paths, enabling deterministic single-cycle execution for most instructions. Program branches are two-cycle. The 4 MHz internal clock rate is generated from an external crystal or RC oscillator, and the device includes power management features such as brown-out reset and power-on reset to improve system reliability. The OTP program memory cannot be erased, which makes this part best suited for production volumes where field firmware updates are not required.
Typical applications include automotive body electronics, low-power remote controls, sensor signal conditioning, simple appliance controls, and industrial automation subsystems. The extended temperature grade and low-power CMOS design make it ideal for automotive under-hood or cabin modules operating across wide thermal ranges. It is also frequently used in legacy PIC-based designs that have been qualified and certified over many production cycles.
When designing with this device, note that OTP memory cannot be re-programmed - use the PIC16F or PIC16LF flash variants if in-field firmware updates are required. Always include decoupling capacitors (0.1 uF ceramic) near the VDD pin, and ensure the MCLR pin is properly biased for reliable reset behavior.
This page synthesizes distributor stock levels, drop-in alternative MPNs, and design notes not consolidated in any single manufacturer datasheet.
חלופות תחליף ישיר עבור PIC16LC620-04E/SO — אותו מארז, תואם פין-לפין. חלקים במארז שונה הדורשים עיבוד מחדש של ה-PCB אינם נכללים.
וריאנטים בסדרה זו
דגמים מאותה סדרה התואמים Drop-in עם PIC16LC620-04E/SO (אותו גורם צורה וטביעת רגל) — שונים ב Package, Operating Temperature Range, Program Memory Size, Program Memory Type, Core Architecture.
PIC16LC620-04/SO
✅ Drop-In ⚠️ מפרטים לא מאומתים📋 חלופה להתייחסות (לא בקטלוג)
PIC16LC620A-04I/SO
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16LC620T-04/SO
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16C620A-04/SO
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16C620-04/SO
✅ Drop-In ⚠️ מפרטים לא מאומתיםצור קשר לקבלת מחיר
הצג גיליון נתונים ←PIC16LC620-04E/SO דירוגים מרביים ומאפיינים חשמליים
| Core Processor | PIC |
| Core Size | 8-Bit |
| Series | PIC 16C |
| Clock Speed (Max) | 4 MHz |
| Instruction Cycle | 200 ns (single-cycle) |
| Program Memory | 896 B (512 x 14) OTP |
| RAM Memory | 80 B |
| EEPROM Data Memory | 64 B |
| Supply Voltage Range | 2.5 V to 6.25 V |
| I/O Ports | 12 |
| מארז | 18-SOIC (0.295 inch / 7.50 mm width) |
| סוג הרכבה | Surface Mount |
| טווח טמפרטורת פעולה | -40C to +125C (Extended, 'E' suffix) |
| Peripherals | Brown-out Detect, Power-on Reset, Watchdog Timer |
| Number of Instructions | 35 |
| Stack Depth | 2 levels (hardware) |
תצורת פינים של PIC16LC620-04E/SO
| פין 1 | RA2 — PORTA bit 2 (bidirectional I/O) |
| פין 2 | RA3 — PORTA bit 3 (bidirectional I/O) |
| פין 3 | RA4 — PORTA bit 4 (bidirectional I/O, open-drain option) |
| פין 4 | RA5 — PORTA bit 5 (bidirectional I/O / MCLR alternate) |
| פין 5 | VSS — Ground reference |
| פין 6 | RB0 — PORTB bit 0 (bidirectional I/O, interrupt-on-change) |
| פין 7 | RB1 — PORTB bit 1 (bidirectional I/O) |
| פין 8 | RB2 — PORTB bit 2 (bidirectional I/O) |
| פין 9 | RB3 — PORTB bit 3 (bidirectional I/O) |
| פין 10 | RB4 — PORTB bit 4 (bidirectional I/O, interrupt-on-change) |
| פין 11 | RB5 — PORTB bit 5 (bidirectional I/O) |
| פין 12 | RB6 — PORTB bit 6 (bidirectional I/O, in-circuit debug) |
| פין 13 | RB7 — PORTB bit 7 (bidirectional I/O, in-circuit debug) |
| פין 14 | VDD — Positive supply (2.5 V to 6.25 V) |
| פין 15 | OSC2/CLKOUT — Oscillator output / clock out |
| פין 16 | OSC1/CLKIN — Oscillator input / external clock in |
| פין 17 | RA0 — PORTA bit 0 (bidirectional I/O, analog input) |
| פין 18 | RA1 — PORTA bit 1 (bidirectional I/O, analog input) |
יישומים טיפוסיים
PIC16LC620-04E/SO מתאים עבור 6 יישוםs: Automotive Body Electronics, Low-Power Remote Control Transmitter, Industrial Sensor Signal Conditioning, Simple Appliance Control, Legacy Industrial Automation Subsystem, Battery-Powered IoT Sensor Edge Node.
Automotive Body Electronics
The PIC16LC620-04E/SO fits automotive body electronics thanks to its extended -40C to +125C temperature range, low-power operation, and 12 general-purpose pins for switches and LEDs. At 4 MHz with 200 ns instruction cycles it executes simple control loops in real time, and 896 B of OTP memory holds proven firmware. Placed on a body control module PCB it drives wiper controllers, mirror adjusters, and interior lighting; the wide 2.5-6.25 V supply range tolerates cranking transients on the automotive 12 V bus after regulation.
מומלץ
Low-Power Remote Control Transmitter
The PIC16LC620-04E/SO is well suited for handheld remote controls because of its low-power CMOS 'LC' process and 2.5-6.25 V operating range, which enables direct battery operation from 2 x AA cells. Its 80-byte RAM is sufficient for momentary button states and timing variables, while the 4 MHz clock delivers responsive debouncing and transmit routines. Brown-out reset prevents firmware corruption when battery voltage droops below 2.5 V under load.
מומלץ
Industrial Sensor Signal Conditioning
The PIC16LC620-04E/SO is ideal for industrial sensor modules that need extended temperature tolerance (-40C to +125C) and the ability to read analog signals via comparator peripherals. Its 12 I/O pins drive 4-20 mA loops, indicator LEDs, and serial interfaces to higher-level controllers. The OTP memory secures the calibration coefficients against field tampering, and the 200 ns instruction cycle handles real-time linearization of bridge sensors.
מומלץ
Simple Appliance Control
The PIC16LC620-04E/SO handles small kitchen and white-goods appliance control where cost dominates and firmware is fixed at production. At 4 MHz it can scan keypads, drive triacs for heater elements, time washing cycles, and read NTC thermistors through analog channels. The wide voltage range accepts rectified mains-derived 5 V or 3.3 V rails; OTP memory protects the calibration tables and timing presets from accidental field writes.
מומלץ
Legacy Industrial Automation Subsystem
The PIC16LC620-04E/SO is still deployed in certified long-life industrial systems that were designed 15-20 years ago around the PIC16C62X family. Its ACTIVE lifecycle status and broad distributor stocking mean it can replace field returns without re-certification. Engineers retrofitting old PLCs, conveyor controllers, and HVAC actuators benefit from its 5 V tolerance, 12 I/O, and proven OTP firmware image that matches the legacy BOM.
מומלץ
Battery-Powered IoT Sensor Edge Node
The PIC16LC620-04E/SO fits simple edge sensor nodes where firmware is fixed and battery life dominates. The low-power CMOS 'LC' process minimizes sleep current, the 2.5-6.25 V range supports Li-coin and 2xAA battery chemistries, and the 12 I/O pins connect to I2C sensors and a low-power RF transmitter chip. Brown-out reset prevents corruption at end-of-life battery voltage. With only 896 B of OTP the firmware must be tight, but for simple periodic readings it suffices.
מומלץ
סיכום מוצרים מומלצים
נתוני עזר הנדסיים עבור PIC16LC620-04E/SO — השוואה, הנחיות תכנון ומידע על תאימות.
מדריך בחירה
השוואה עם חלופות
| פרמטר | מוצר זה | PIC16LC620-04/SO | PIC16LC620A-04I/SO | PIC16LC620T-04/SO | PIC16C620A-04/SO | PIC16C620-04/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 |
| Clock Speed (Max) | 4 MHz | 4 MHz | 20 MHz | 4 MHz | 20 MHz | 4 MHz |
| Program Memory | 896 B OTP | 896 B OTP | 896 B OTP | 896 B OTP | 1 K OTP | 896 B OTP |
| RAM Memory | 80 B | 80 B | 80 B | 80 B | 128 B | 80 B |
| Supply Voltage Range | 2.5 V to 6.25 V | 2.5 V to 6.25 V | 2.5 V to 6.25 V | 2.5 V to 6.25 V | 3.0 V to 6.25 V | 3.0 V to 6.25 V |
| Operating Temperature Range | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | 0C to +70C (Commercial) |
| Silicon Revision | Original ('-') | Original | A | Original | A | Original |
מבדילים עיקריים
- Lowest voltage floor in the PIC16C620 family (לעומתPIC16C620-04/SO)
- Automotive temperature grade at the same price point (לעומתPIC16LC620-04/SO)
- Pin-compatible upgrade path to higher clock speed (לעומתPIC16C620-04/SO)
הערות תכנון
Decouple VDD (pin 14) with a 100 nF ceramic capacitor placed within 5 mm of the pin; add a 10 uF bulk capacitor if VDD is shared with switching loads. Brown-out reset triggers below 2.5 V (approximately 4.0 V on the 'C' non-LC variant) so design your power-rail sequencing to ensure VDD rises monotonically and stays above the brown-out threshold during MCU operation. The 'LC' process draws significantly less current than the standard 'C' process for the same clock frequency.
Route the oscillator traces (OSC1, OSC2) as short, symmetric loops and keep them away from switching signals. For HS crystal mode add 20-30 pF load capacitors to ground from each oscillator pin. If using a ceramic resonator, follow the resonator manufacturer's recommended capacitor values. The MCLR pin (typically on RA5) must be pulled high through a 10 kohm resistor for normal operation and should include a 100 nF capacitor for noise immunity in noisy automotive environments.
Do not assume OTP memory can be re-programmed during development - use the PIC16F flash variants or a JW windowed package for firmware iteration. Watchdog timer is enabled by default after configuration fuses are programmed; clear WDT in long main loops or risk unexpected resets. PORTB pins RB0 and RB4-RB7 are interrupt-on-change capable - design external RC filters if mechanical switches are connected to avoid spurious interrupts. Finally, when migrating PIC16LC620-04E/SO firmware to the 'A' revision, verify the configuration bits mapping because some fuse locations changed between silicon revisions.
מידע על תאימות
RoHS, lead-free, and halogen-free status not explicitly stated in the verified web data; AEC-Q100 marked not_applicable because this is an older PIC16C OTP part predating widespread AEC-Q100 microcontroller qualification - the extended temperature grade is the automotive compliance signal for this family. Conflict-minerals compliance inferred from Microchip corporate policy.