PIC16LC62A-04/SS - 8-bit MCU 3.5KB OTP 22 I/O SSOP-28 | Microchip
MPN: PIC16LC62A-04/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.85 | $7.85 |
| 10 | $7.42 | $74.20 |
| 100 | $6.65 | $665.00 |
| 500 | $6.05 | $3,025.00 |
| 1,000 | $5.5 | $5,500.00 |
PIC16LC62A-04/SS Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory (program + RAM), and programmable I/O peripherals. The PIC16 family is a classic Harvard-architecture 8-bit RISC MCU family from Microchip, widely used as the entry point for embedded control due to its small footprint, low cost, and broad peripheral set. The PIC16LC62A sits in the mid-range PIC16 sub-family, between baseline PIC10/12/16 and enhanced mid-range PIC16F parts.
Key features include a 12-bit wide instruction set, 8-bit wide data path, two-level deep hardware stack, and support for direct, indirect, and relative addressing. Seven or eight special-function hardware registers expose core control, and a synchronous serial port (SSP) plus capture/compare/PWM and 8-bit ADC channels are integrated for typical embedded peripherals. The OTP (One-Time-Programmable) memory supports low-volume production programming at the factory.
The PIC16LC62A uses a RISC architecture with a fixed 12-bit instruction word and an 8-bit data path, optimizing code density and execution determinism. The Harvard structure keeps program and data memory on separate buses, allowing instruction fetch and operand access in the same cycle. Power consumption is modest (LC variant for low-power CMOS), enabling battery-friendly designs.
Typical applications include industrial control, IoT edge nodes, embedded automation, simple motor control, metering, and low-power board designs. The wide supply range and SSOP footprint also suit retrofit designs on legacy PIC16 layouts.
When designing, remember the 2-level hardware stack limits call depth - use careful subroutine nesting. The OTP memory means firmware must be committed at programming time; for prototyping, choose a PIC16F equivalent or a JW-package windowed part.
This page synthesizes distributor pricing, drop-in same-package alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC16LC62A-04/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-04/SS (same form factor and footprint) — differing in Program Memory Size, RAM Size, Operating Temperature Range, Core Architecture, Package.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16LC62A-04I/SS
✅ Drop-In✓ In Stock
$1.86 / Unit
View Datasheet →PIC16LC62AT-04/SS
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16LC62AT-04I/SS
✅ Drop-In✓ In Stock
$2.75 / Unit
View Datasheet →PIC16LC620A-04/SS
✅ Drop-In✓ In Stock
$2.74 / Unit
View Datasheet →PIC16LC56A-04/SS
✅ Drop-In✓ In Stock
$0.6 / Unit
View Datasheet →PIC16LC622-04/SS
✅ Drop-In✓ In Stock
$1.28 / Unit
View Datasheet →PIC16LC62A-04/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | 8-bit PIC16 RISC (Harvard) |
| Program Memory Type | OTP (One-Time-Programmable) |
| Program Memory Size | 3.5 KB |
| RAM | 128 bytes |
| Maximum Clock Speed | 4 MHz |
| Supply Voltage Range | 2.5 V to 6.25 V |
| I/O Pins | 22 |
| Instruction Word Width | 12 bits |
| Data Path Width | 8 bits |
| Hardware Stack Depth | 2 levels |
| Addressing Modes | Direct, Indirect, Relative |
| Special Function Registers | 7 to 8 |
| Operating Temperature Range | 0C to +70C (commercial) |
| Package Type | 28-pin SSOP (5.30 mm / 0.209 in width) |
| Mounting Type | Surface Mount |
| Lead-Free / RoHS | Compliant |
PIC16LC62A-04/SS Pin Configuration
| Pin 1 | RA2 — Digital I/O port A bit 2 |
| Pin 2 | RA3 — Digital I/O port A bit 3 |
| Pin 3 | RA4 — Digital I/O port A bit 4 (open-drain option) |
| Pin 4 | RA5 — Digital I/O port A bit 5 |
| Pin 5 | OSC1/CLKIN — Oscillator input / external clock in |
| Pin 6 | OSC2/CLKOUT — Oscillator output / clock out |
| Pin 7 | RC0 — Digital I/O port C bit 0 |
| Pin 8 | RC1 — Digital I/O port C bit 1 |
| Pin 9 | RC2 — Digital I/O port C bit 2 |
| Pin 10 | RC3 — Digital I/O port C bit 3 |
| Pin 11 | VSS — Ground reference |
| Pin 12 | RC4 — Digital I/O port C bit 4 |
| Pin 13 | RC5 — Digital I/O port C bit 5 |
| Pin 14 | RC6 — Digital I/O port C bit 6 |
| Pin 15 | RC7 — Digital I/O port C bit 7 |
| Pin 16 | RB0/INT — Digital I/O port B bit 0 / external interrupt |
| Pin 17 | RB1 — Digital I/O port B bit 1 |
| Pin 18 | RB2 — Digital I/O port B bit 2 |
| Pin 19 | RB3 — Digital I/O port B bit 3 |
| Pin 20 | RB4 — Digital I/O port B bit 4 |
| Pin 21 | RB5 — Digital I/O port B bit 5 |
| Pin 22 | RB6 — Digital I/O port B bit 6 |
| Pin 23 | RB7 — Digital I/O port B bit 7 |
| Pin 24 | VDD — Positive supply voltage |
| Pin 25 | RA0 — Digital I/O port A bit 0 |
| Pin 26 | RA1 — Digital I/O port A bit 1 |
| Pin 27 | MCLR/VPP — Master clear (reset) / programming voltage |
| Pin 28 | NC — Not connected (per datasheet) |
Typical Applications
PIC16LC62A-04/SS is suitable for 6 applications: Industrial Control, IoT Edge Nodes and Sensor Hubs, Embedded Automation, Simple Motor Control, Metering Endpoints, Low-Power Board Designs.
Industrial Control
The PIC16LC62A-04/SS suits industrial control applications thanks to its 22 I/O, 3.5 KB OTP, and 2.5-6.25 V supply flexibility. The 4 MHz clock and 12-bit instruction set deliver predictable execution times suited to PLC-style discrete control loops and sensor interfacing. Its CMOS LC process keeps switching noise low, and the SSOP-28 footprint is easy to route on 4-layer control boards. The Harvard architecture means deterministic interrupt response, which matters when sequencing relays, solenoids, and motor contactors. Designers should still qualify the I-suffix variant for factory-floor temperature exposure. Use the SSP peripheral for inter-MCU or sensor-bus expansion without needing extra logic.
Recommended
IoT Edge Nodes and Sensor Hubs
The PIC16LC62A-04/SS can act as an IoT edge node aggregating digital sensors before forwarding over UART or SPI. Its 128 B RAM and 3.5 KB OTP are enough for short packet buffering and simple threshold logic, while the 22 I/O handle multiple sensor channels and status LEDs. The 2.5 V minimum supply suits battery or energy-harvested nodes where the LC low-power CMOS process extends runtime. The wide 2.5-6.25 V range lets the same board accept 3.3 V or 5 V rails. Use the synchronous serial port for short-range radio modules that share SPI framing. For OTA-update needs, swap to a PIC16F equivalent in the same SSOP-28 footprint.
Recommended
Embedded Automation
In embedded automation the PIC16LC62A-04/SS provides a low-cost deterministic controller for sequencing pumps, valves, and indicators. Its 4 MHz CPU clock gives 1 us instruction execution, adequate for slow industrial loops, while 22 I/O can drive multiple relays and read limit switches. The PIC16LC62A-04/SS operates from 2.5-6.25 V so it accepts either 3.3 V logic sensors or 5 V industrial rails directly. The PIC16 Harvard architecture's two-level hardware stack keeps ISR latency predictable, important for safety interlocks. Pair with opto-isolated drivers on the I/O lines to handle the inductive kickback common in solenoid-driven cabinets.
Recommended
Simple Motor Control
The PIC16LC62A-04/SS can drive small brushed DC motors and steppers via PWM outputs on its CCP module, with the 4 MHz CPU providing enough bandwidth for 8-bit PWM resolution at modest switching frequencies. The 2.5-6.25 V supply aligns with motor battery packs, and the 22 I/O carry direction, brake, and tach feedback signals. OTP memory is acceptable since motor-control firmware rarely changes after tuning. Place back-EMF flyback diodes or use a small gate driver IC on each phase. For higher-speed or sinusoidal FOC, choose a PIC18 or dsPIC part, but for low-RPM fans, pumps, and dampers the PIC16LC62A is a strong fit.
Recommended
Metering Endpoints
The PIC16LC62A-04/SS serves metering endpoints such as electricity, water, or gas sub-meters requiring tamper-resistant firmware in OTP. The PIC16LC62A-04/SS's 3.5 KB program space accommodates simple consumption counting, calibration tables, and LCD drive via software. Its 2.5-6.25 V supply lets it run directly from a rectified mains-rail capacitor. The PIC16 RISC core's deterministic timing makes pulse counting reliable. Use the I-suffix industrial variant for outdoor cabinets. For data push to a concentrator, the SSP peripheral talks to a low-cost PLC or RF modem. The Harvard bus isolates the metering calculation from bus activity.
Recommended
Low-Power Board Designs
The PIC16LC62A-04/SS fits low-power board designs where the LC CMOS process and 2.5 V minimum VDD minimize quiescent draw on battery or energy-harvested rails. Its 128 B RAM supports short event buffers without external SRAM, and the OTP program memory keeps standby leakage lower than Flash. The PIC16LC62A-04/SS supports 4 MHz operation across the full 2.5-6.25 V supply range, so a single design can run from a CR2032 coin cell or a 5 V USB rail. Use the SSOP-28 footprint for compact PCBs, and add a low-Iq LDO for clean analog rails. Combine with a watchdog timer IC for unattended deployments.
Recommended
Recommended Products Summary
Engineering reference data for PIC16LC62A-04/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16LC62A-04I/SS | PIC16LC62AT-04/SS | PIC16LC62AT-04I/SS | PIC16LC620A-04/SS | PIC16LC56A-04/SS | PIC16LC622-04/SS |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | SSOP-28 | SSOP-28 - same | SSOP-28 - same | SSOP-28 - same | SSOP-28 - same | SSOP-28 - same | SSOP-28 - same |
| 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 (LC family) | 2.5 V to 6.25 V (LC family) | 2.5 V to 6.25 V (LC family) |
| Max Clock Speed | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 4 MHz |
| Operating Temperature | 0C to +70C | -40C to +85C | 0C to +70C | -40C to +85C | 0C to +70C | 0C to +70C | 0C to +70C |
Key Differentiators
- OTP memory at lowest unit cost (vs PIC16F62x Flash variants)
- Wide 2.5 V to 6.25 V supply range (vs PIC16C62A (5 V only))
- Same SSOP-28 footprint across LC sub-family (vs PIC16LC620A / PIC16LC56A)
Design Notes
Decouple VDD with a 100 nF ceramic plus 10 uF tantalum or ceramic within 1 cm of pins VSSOP and VSS. The PIC16LC62A-04/SS draws brief inrush transients during MCLR ramp and brown-out reset; bulk capacitance sustains the rail. Use a 10 kohm pull-up on MCLR to VDD, with a diode to VDD if the reset line is also driven by another source. For battery-powered designs, place the MCU in SLEEP between samples and wake on RB0/INT.
Route the SSOP-28 with 0.5 mm pitch escape; provide a continuous ground plane under the IC. Keep the OSC1/OSC2 traces short and surrounded by ground on both sides to minimize radiated harmonics from the oscillator. For a 4 MHz crystal, place load caps (typically 15-33 pF) within 5 mm of the OSC pins. If using an external clock into OSC1, leave OSC2 floating or use it as a buffered CLKOUT. Maintain keep-out under the SSOP body for probe access during programming.
The PIC16LC62A-04/SS has a two-level hardware stack, so third-level nested CALLs will overflow and corrupt the return address - use software stack in GPR if deeper nesting is needed. OTP memory cannot be erased; any code bug requires scrapping the part, so always prototype with a PIC16F62x or a JW windowed device first. Watch the I/O source/sink ratings (typically 20-25 mA per pin, 100 mA total) when driving LEDs or relays directly. Estimated: for a 22-pin I/O load at 10 mA each, total pin current is 220 mA, exceeding the port budget - multiplex or buffer.
Compliance Information
RoHS compliant per Microchip product page and Partstack listing. AEC-Q100 not applicable - this is a commercial/industrial MCU, not automotive-grade. REACH and conflict-minerals status not explicitly stated in provided data.
