PIC16LC62A-04I/SS - 8-Bit 4MHz OTP MCU, 3.5KB, 28-SSOP | Microchip
MPN: PIC16LC62A-04I/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $3.1 | $3.10 |
| 10 | $2.79 | $27.90 |
| 100 | $2.48 | $248.00 |
| 500 | $2.17 | $1,085.00 |
| 1,000 | $1.86 | $1,860.00 |
PIC16LC62A-04I/SS Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, data RAM, and programmable peripherals. The PIC16LC62A family sits in the legacy PIC16 mid-range (PIC16C) tier, sharing the standard 14-bit instruction word and 8-bit data path of the mid-range PIC architecture, with two-level hardware stack and seven or eight special-function hardware registers. This family is widely used as a stepping stone from discrete logic designs to fully programmable embedded control.
Key features of the PIC16LC62A-04I/SS include a RISC instruction set with 12-bit wide instructions and an 8-bit data path, 12 digital I/O ports, a two-level deep hardware stack, direct/indirect/relative addressing modes, and on-chip oscillator support. Its OTP memory enables one-time field programming, suitable for low-to-medium volume production runs. The 28-SSOP (5.30 mm body width) package balances board-area savings with hand-solderable lead pitch.
Architecturally, the device uses Microchip's proven PIC16C core with separate program and data buses (Harvard architecture), enabling single-cycle instruction execution except for branches. The 4 MHz maximum clock rate delivers 1 MIPS of throughput, sufficient for slow control loops, human-interface logic, and sensor readout tasks.
Typical applications include appliance control, sensor signal conditioning, simple human-interface panels, low-cost motor drivers, and industrial monitoring nodes. Industrial-grade temperature and the wide 2.5V-6.25V supply range make the part well-suited for 3.3V and 5V mixed-rail systems.
When designing with the PIC16LC62A-04I/SS, plan for OTP programming - this part cannot be re-programmed, so development is normally done on a compatible UV-erasable PIC16LC62A or flash-based PIC16F equivalent before moving to OTP for production.
This page synthesizes distributor pricing, drop-in alternatives, and engineering design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC16LC62A-04I/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 PIC16LC62A-04I/SS (same form factor and footprint) — differing in Program Memory Type, I/O Pins, Operating Temperature Range, Program Memory Size, Core Architecture.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LC62AT-04I/SS
✅ Drop-In✓ In Stock
$2.75 / Unit
View Datasheet →PIC16LC62AT-04/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LC62A-04/SS
✅ Drop-In✓ In Stock
$5.5 / Unit
View Datasheet →PIC16LC62A-04I/SO
✅ Drop-In✓ In Stock
$1.74 / Unit
View Datasheet →PIC16LC622A-04I/SS
✅ Drop-In✓ In Stock
$1.56 / Unit
View Datasheet →PIC16LC620A-04I/SS
✅ Drop-In✓ In Stock
$1.55 / Unit
View Datasheet →PIC16LC62A-04I/SS Maximum Ratings & Electrical Characteristics
| Manufacturer | Microchip Technology |
| Series | PIC16C |
| Core Processor | PIC |
| Core Size | 8-bit |
| Program Memory Type | OTP (One-Time-Programmable) |
| Program Memory Size | 3.5 KB (2K x 14) |
| Maximum Clock Speed | 4 MHz |
| Instruction Set Width | 14-bit |
| Data Path Width | 8-bit |
| Number of I/O Pins | 12 |
| Supply Voltage Range | 2.5 V to 6.25 V |
| Operating Temperature Range | -40 C to +85 C (Industrial) |
| Package / Case | 28-SSOP (0.209 inch, 5.30 mm body width) |
| Mounting Type | Surface Mount |
PIC16LC62A-04I/SS Pin Configuration
| Pin 1 | RA2/AN2 — PORTA bit 2 / analog input |
| Pin 2 | RA3/AN3 — PORTA bit 3 / analog input |
| Pin 3 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pin 4 | MCLR — Master clear reset input (active low) |
| Pin 5 | VSS — Ground reference |
| Pin 6 | RB0/INT — PORTB bit 0 / external interrupt |
| Pin 7 | RB1 — PORTB bit 1 |
| Pin 8 | RB2 — PORTB bit 2 |
| Pin 9 | RB3 — PORTB bit 3 |
| Pin 10 | RB4 — PORTB bit 4 |
| Pin 11 | RB5 — PORTB bit 5 |
| Pin 12 | RB6 — PORTB bit 6 |
| Pin 13 | RB7 — PORTB bit 7 |
| Pin 14 | VSS — Ground reference |
| Pin 15 | VDD — Positive supply voltage (2.5 V to 6.25 V) |
| Pin 16 | OSC2/CLKOUT — Oscillator output / clock out |
| Pin 17 | OSC1/CLKIN — Oscillator input / external clock in |
| Pin 18 | RC0 — PORTC bit 0 |
| Pin 19 | RC1 — PORTC bit 1 |
| Pin 20 | RC2 — PORTC bit 2 |
| Pin 21 | RC3 — PORTC bit 3 |
| Pin 22 | RC4 — PORTC bit 4 |
| Pin 23 | RC5 — PORTC bit 5 |
| Pin 24 | RC6 — PORTC bit 6 |
| Pin 25 | RC7 — PORTC bit 7 |
| Pin 26 | VSS — Ground reference |
| Pin 27 | VDD — Positive supply voltage |
| Pin 28 | RA0/AN0 — PORTA bit 0 / analog input |
Typical Applications
PIC16LC62A-04I/SS is suitable for 7 applications: Appliance Control Boards, Industrial Sensor Signal Conditioning, Low-Cost Human-Machine Interface (HMI) Panels, Automotive Body Electronics (Non-Safety), Battery-Powered Portable Devices, Education and Development Platforms, Industrial Monitoring and Data Logging.
Appliance Control Boards
The PIC16LC62A-04I/SS is well suited for appliance control boards thanks to its 12 I/O pins for keypad, relay drivers, and status LEDs, plus the 2.5 V to 6.25 V supply range that supports both 3.3 V and 5 V power rails without level shifters. The 3.5 KB OTP memory holds appliance state machines, timer logic, and sensor calibration tables. At 4 MHz, the core delivers 1 MIPS, sufficient for washing-machine, microwave, and HVAC control loops that require deterministic response under 10 ms. Compared with newer PIC16F flash parts, the OTP variant cuts per-unit cost in high-volume production where firmware is frozen.
Recommended
Industrial Sensor Signal Conditioning
For industrial sensor signal conditioning, the PIC16LC62A-04I/SS provides 12 digital I/O lines that can drive multiplexers, read comparator outputs, and interface with low-speed ADC front-ends. Its industrial temperature range of -40 C to +85 C matches factory-floor thermal stress. The 2.5 V to 6.25 V supply range lets the MCU share 3.3 V or 5 V analog rails directly. With 1 MIPS at 4 MHz, the device executes simple filter and linearization routines in real time, making it ideal for thermocouple cold-junction compensation, strain-gauge zeroing, and 4-20 mA loop monitoring nodes.
Recommended
Low-Cost Human-Machine Interface (HMI) Panels
The PIC16LC62A-04I/SS fits low-cost HMI panels driving 7-segment displays, keypads, and indicator LEDs. With 12 I/O pins it can scan up to a 4x4 matrix keypad while driving four 7-segment digits through external transistors. The 3.5 KB OTP memory holds menu trees, beep patterns, and calibration constants. Its 2.5 V to 6.25 V supply range accommodates both alkaline and regulated 5 V rails, common in portable HMI test gear. The 4 MHz clock provides the deterministic scan timing required to debounce keys without jitter, ensuring responsive user feedback.
Recommended
Automotive Body Electronics (Non-Safety)
Although the PIC16LC62A-04I/SS lacks AEC-Q100 qualification, it is commonly deployed in non-safety automotive body electronics such as interior lighting controllers, seat-position memory modules, and aftermarket accessories operating from 12 V regulated rails. Its 2.5 V to 6.25 V supply range handles automotive voltage transients when paired with an external regulator. The 12 I/O pins drive LED drivers, read Hall-effect sensors, and toggle relay coils. Engineers should ensure safety-critical functions use AEC-Q100 qualified PIC16F or PIC18F variants per automotive design guidelines.
Recommended
Battery-Powered Portable Devices
The PIC16LC62A-04I/SS is well suited for battery-powered portable devices thanks to its 'LC' low-voltage class, which permits operation down to 2.5 V from two AA cells or a single Li-ion cell. Its 12 I/O pins support low-power display drivers, push-button inputs, and buzzer outputs. At 4 MHz, the core delivers 1 MIPS with moderate active current, and the PIC16C mid-range architecture supports sleep modes for standby power under 1 uA. The 3.5 KB OTP memory stores configuration presets, calibration data, and user profiles in handheld meters, toys, and remote controls.
Recommended
Education and Development Platforms
The PIC16LC62A-04I/SS is a classic teaching vehicle for RISC embedded programming courses because its 35-instruction PIC16C mid-range core is small enough to learn in a semester. The 28-SSOP package fits standard breakout boards used in university labs, and the 12 I/O pins are sufficient for lab exercises involving LED chasers, motor speed control, and serial communication experiments. Although OTP makes in-circuit debugging harder than flash parts, the low per-unit cost allows each student to keep a dedicated board for final projects.
Recommended
Industrial Monitoring and Data Logging
For industrial monitoring nodes, the PIC16LC62A-04I/SS provides deterministic 1 MIPS performance at 4 MHz, enough to sample sensors, run moving-average filters, and store data in external EEPROM via I/O emulation. The industrial temperature range of -40 C to +85 C ensures reliable operation in factory cabinets and outdoor enclosures. The 2.5 V to 6.25 V supply range supports operation from 24 V industrial rails after external regulation. The 12 I/O pins drive RS-485 transceivers, read digital sensors, and toggle alarm relays in remote terminal units.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LC62A-04I/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LC62AT-04I/SS | PIC16LC62AT-04/SS | PIC16LC62A-04/SS | PIC16LC62A-04I/SO | PIC16LC622A-04I/SS | PIC16LC620A-04I/SS |
|---|---|---|---|---|---|---|---|
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SOIC | 28-SSOP - same | 28-SSOP - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP | 896 B OTP |
| Max Clock Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| I/O Pins | 12 | 12 | 12 | 12 | 12 | 12 | 8 |
| Supply Voltage | 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 | 2.5 V to 6.25 V | 2.5 V to 6.25 V | 2.5 V to 6.25 V |
| Temperature Range | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | 0 C to +70 C (Commercial) | 0 C to +70 C (Commercial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) | -40 C to +85 C (Industrial) |
| Memory Type | OTP | OTP | OTP | OTP | OTP | OTP | OTP |
| Delivery Form | Tube | Tape and Reel | Tape and Reel | Tube | Tube | Tube | Tube |
Key Differentiators
- Wide low-voltage supply range supports both 3.3 V and 5 V rails without level shifters (vs PIC16C62A-04/SS (standard voltage class))
- Industrial temperature range for factory and outdoor deployments (vs PIC16LC62A-04/SS (commercial temperature))
- Higher memory than PIC16LC620A family (vs PIC16LC620A-04I/SS)
Design Notes
The PIC16LC62A-04I/SS operates from 2.5 V to 6.25 V. For 5 V rails, place a 100 nF decoupling capacitor within 5 mm of the VDD pins (15 and 27) and a bulk 10 uF tantalum or ceramic capacitor on the same net. For 3.3 V battery-powered designs, ensure the supply does not drop below 2.5 V under peak load, or oscillator drift will compromise timing. MCLR must be tied to VDD through a 10 kohm pull-up and a 100 nF capacitor to ground for clean power-on reset, per PIC16C mid-range hardware design guidelines.
OTP memory cannot be re-programmed. Engineers should develop and debug firmware on a flash-based PIC16F62A or windowed PIC16C62A equivalent, then commit the final image to the PIC16LC62A-04I/SS for production. Erasing or re-programming an OTP part is impossible, so a single mis-programmed bit makes the device unusable. Allocate at least one extra unit per build for programming yield loss during bring-up.
Route the oscillator traces (OSC1/OSC2, pins 16-17) as short as possible and keep them away from switching traces and I/O edges. The 28-SSOP package has a 0.65 mm lead pitch - use a fine-pitch soldering iron tip or hot-air rework station for hand assembly, and ensure the PCB land pattern matches the SSOP-28 recommendation with 0.4 mm x 0.2 mm pads. Place a ground pour on the top layer under the MCU body to reduce EMI susceptibility on the oscillator pins.
The PIC16LC62A-04I/SS has only 12 I/O pins (PORTA: 5 pins, PORTB: 8 pins, minus shared functions). When using the MCLR pin and oscillator, only 12 general-purpose I/O remain. Plan pin assignments early to avoid bottlenecks, especially for designs requiring UART, I2C, and multiple interrupt sources. PORTB has internal weak pull-ups that can be individually enabled through the OPTION register, useful for direct switch input without external resistors.
Compliance Information
RoHS, REACH, lead-free, halogen-free, and conflict-mineral status not stated in the verified web snippets. AEC-Q100 not qualified - the 'I' suffix denotes industrial temperature only. Verify compliance directly with Microchip's product compliance documentation before committing to high-volume production.
