PIC16C62A-04I/SS - 8-Bit 4MHz OTP MCU 3.5KB | Microchip
MPN: PIC16C62A-04I/SS β End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $8.95 | $8.95 |
| 10 | $8.2 | $82.00 |
| 100 | $7.45 | $745.00 |
| 500 | $6.8 | $3,400.00 |
| 1,000 | $6.1 | $6,100.00 |
PIC16C62A-04I/SS Overview
A PIC16C-series 8-bit microcontroller is a RISC-based (Reduced Instruction Set Computer) single-chip computer that integrates CPU core, program memory (ROM/EPROM/Flash/OTP), data RAM, peripheral timers, capture/compare modules, a watchdog timer, an analog comparator, and I/O ports onto a single silicon die. These MCUs are designed to provide deterministic interrupt response, low power consumption, and minimal external component count for embedded control. PIC microcontrollers sit in the broader hierarchy of microcontrollers -> embedded processors -> integrated circuits, and historically dominated low-cost 8-bit embedded designs.
Key features include 33 single-word instructions with 14-bit instruction width, a 200 ns instruction cycle at 4 MHz oscillator, an 8-level deep hardware stack, power-on reset, power-up timer, oscillator start-up timer, and a watchdog timer with on-chip RC oscillator for reliable operation. The device includes 22 digital I/O pins, three timers (one 8-bit Timer0 and two 16-bit Timer1/Timer2-style counters, depending on peripheral set), a 16-bit capture/compare/PWM module, a USART serial port, and a parallel slave port.
Architecturally, the PIC16C62A separates program bus (14-bit wide) and data bus (8-bit wide) in a Harvard architecture, allowing simultaneous instruction fetch and operand access, which boosts throughput relative to von Neumann 8-bit MCUs of similar clock rate. The CMOS EPROM process gives the part its low-power profile: 15 uA typical at 5V/4 MHz and 1 uA typical at 3V/32 kHz standby.
Typical applications include industrial control logic, automotive body electronics, appliance controllers, security system sensor interfaces, and consumer remote-control transmitters. The OTP program memory and small SSOP footprint make the PIC16C62A a fit for cost-sensitive high-volume products where firmware is final and reprogramming is not required. For prototyping or production environments requiring re-programmability, consider the PIC16F62A Flash successor.
When designing with this device, note that the OTP memory is one-time programmable: a windowed JW-package variant is required for development/erase cycles, and a flash-based migration part is recommended for new designs. Verify the industrial temperature grade (-40C to +85C) and decoupling on VDD/AVSS, and ensure the MCLR reset circuit is properly pulled up to VDD.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found on the manufacturer product page, giving engineers a faster path to sourcing and replacement decisions.
Drop-in alternatives for PIC16C62A-04I/SS β 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 PIC16C62A-04I/SS (same form factor and footprint) β differing in Instruction Set, Package, Timers, Program Memory Type, Core Architecture.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16C62A-04/SS
β Drop-Inβ In Stock
$2.84 / Unit
View Datasheet βPIC16C62A-04E/SS
β Drop-Inβ In Stock
$5.07 / Unit
View Datasheet βPIC16C62A-04I/SO
β Drop-In β οΈ εζ°εΎ ιͺθ―π Reference alternative (not in catalog)
PIC16C62B-04I/SS
β Drop-In β οΈ εζ°εΎ ιͺθ―β In Stock
$5.4 / Unit
View Datasheet βPIC16F62A-I/SS
β Drop-Inπ Reference alternative (not in catalog)
PIC16F628A-I/SS
β Drop-Inπ Reference alternative (not in catalog)
PIC16C62A-04I/SS Maximum Ratings & Electrical Characteristics
| Series | PIC 16C |
| Core | PIC16 (8-bit RISC) |
| Instruction Set | 33 single-word instructions, 14-bit wide |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 3.5 KB (2K x 14) |
| Data RAM | 128 bytes |
| Max CPU Speed | 4 MHz |
| Instruction Cycle | 200 ns at 4 MHz |
| Operating Voltage | 2.5 V to 6.0 V |
| Operating Temperature | -40 C to +85 C (Industrial, 'I' grade) |
| I/O Pins | 22 digital I/O |
| Timers | Timer0 (8-bit), Timer1/Timer2 (16-bit) |
| CCP Module | 1 x 16-bit Capture/Compare/PWM |
| Serial | USART (SCI/SPI) |
| Watchdog Timer | Yes, on-chip RC oscillator |
| Package | 28-pin SSOP (5.30 mm body width) |
| Mounting Type | Surface Mount |
| MSL Level | 1 |
PIC16C62A-04I/SS Pin Configuration
| Pin 1 | MCLR/VPP β Master clear reset input / programming voltage |
| Pin 2 | RA0/AN0 β Port A bit 0 / analog input 0 |
| Pin 3 | RA1/AN1 β Port A bit 1 / analog input 1 |
| Pin 4 | RA2/AN2/VREF- β Port A bit 2 / analog input 2 / ADC VREF- |
| Pin 5 | RA3/AN3/VREF+ β Port A bit 3 / analog input 3 / ADC VREF+ |
| Pin 6 | RA4/T0CKI β Port A bit 4 / Timer0 clock input |
| Pin 7 | RA5/AN4/SS β Port A bit 5 / analog input 4 / SPI slave select |
| Pin 8 | VSS β Ground |
| Pin 9 | OSC1/CLKIN β Oscillator crystal input / external clock in |
| Pin 10 | OSC2/CLKOUT β Oscillator crystal output / clock out |
| Pin 11 | RC0/T1OSO/T1CKI β Port C bit 0 / Timer1 oscillator output / Timer1 clock in |
| Pin 12 | RC1/T1OSI/CCP2 β Port C bit 1 / Timer1 oscillator in / CCP2 |
| Pin 13 | RC2/CCP1 β Port C bit 2 / CCP1 PWM output |
| Pin 14 | RC3/SCK/SCL β Port C bit 3 / SPI clock / I2C clock |
| Pin 15 | RC4/SDI/SDA β Port C bit 4 / SPI data in / I2C data |
| Pin 16 | RC5/SDO β Port C bit 5 / SPI data out |
| Pin 17 | RC6/TX/CK β Port C bit 6 / USART TX / USART clock |
| Pin 18 | RC7/RX/DT β Port C bit 7 / USART RX / USART data |
| Pin 19 | VSS β Ground |
| Pin 20 | VDD β Positive supply |
| Pin 21 | RB0/INT β Port B bit 0 / external interrupt |
| Pin 22 | RB1 β Port B bit 1 |
| Pin 23 | RB2 β Port B bit 2 |
| Pin 24 | RB3/PGM β Port B bit 3 / low-voltage programming |
| Pin 25 | RB4 β Port B bit 4 |
| Pin 26 | RB5 β Port B bit 5 |
| Pin 27 | RB6/PGC β Port B bit 6 / ICSP clock |
| Pin 28 | RB7/PGD β Port B bit 7 / ICSP data |
Typical Applications
PIC16C62A-04I/SS is suitable for 6 applications: Industrial Control Logic, Appliance Control Board, Security System Sensor Interface, Automotive Body Electronics, Consumer Remote Control Transmitter, Smart Sensor Node / IoT Edge Device.
Industrial Control Logic
The PIC16C62A-04I/SS suits industrial control logic boards with its -40C to +85C industrial temperature range, 22 digital I/O lines, and on-chip USART for inter-board communication. The 33 single-word RISC instructions deliver deterministic 200 ns instruction cycle at 4 MHz, which is fast enough for sensor polling, encoder decoding, and relay/motor control loops. The on-chip 16-bit CCP module can generate PWM for proportional valve or heater control without an external timer IC. The 3.5 KB OTP memory holds fixed ladder-logic replacement firmware for high-volume OEM equipment. Place 0.1 uF decoupling on VDD/AVSS close to the SSOP pins and route MCLR through a 10 kohm pull-up to VDD. Choose this part for established industrial-control designs where firmware is final and the lowest per-unit cost on an 8-bit OTP MCU is required.
Recommended
Appliance Control Board
The PIC16C62A-04I/SS is well matched to white-goods appliance controllers such as washing machines, dishwashers, and microwave oven control panels, where the SSOP 28-pin footprint fits behind a small display module. The 16-bit CCP/PWM module drives triac-based heater and motor-speed control, while the USART connects to a separate sensor or display board. The OTP memory prevents firmware theft or reverse engineering, which is a concern for high-volume consumer appliances. Industrial temperature grade covers the -40C to +85C operating range required for under-cabinet or unventilated enclosures. With only 15 uA at 5V/4 MHz and 1 uA in standby, the part contributes minimal standby current to Energy Star-compliant products. The PIC16C62A-04I/SS is best chosen when the firmware is final and BOM cost is the dominant constraint.
Recommended
Security System Sensor Interface
In security panels and PIR motion-sensor interfaces, the PIC16C62A-04I/SS serves as a low-power sensor-conditioning MCU. Its analog comparator and 8-channel 8-bit ADC (multiplexed with the digital I/O) handle thermocouple or thermistor input chains used in glass-break and PIR signal conditioning. The watchdog timer with on-chip RC oscillator provides fail-safe recovery from sensor-line ESD events. The 22 I/O lines drive status LEDs, piezo buzzers, and keypads, while the USART links to a central alarm panel. OTP memory prevents firmware tampering. The SSOP 28-pin package is small enough for a wall-mount sensor housing. Engineers should budget MCLR with a 10 kohm pull-up and ESD protection diodes on external lines for IEC 61000-4-2 compliance.
Recommended
Automotive Body Electronics
The PIC16C62A-04I/SS can serve in non-safety automotive body-electronics modules such as lighting controllers, seat-position memories, and accessory interface boards, where its 4 MHz PIC16 RISC core delivers deterministic interrupt response for switch-debounce and LIN-bus timing. The USART with software LIN-stack enables simple body-control networking. The industrial -40C to +85C temperature range covers cabin environments, while the -40C to +125C extended -04E/SS variant handles under-hood locations. OTP memory is locked at production, preventing field firmware tampering. The 28-SSOP package fits on small body-module PCAs. For safety-critical or powertrain modules, migrate to a PIC16F or dsPIC with CAN and AEC-Q100 qualification; the PIC16C62A is a body-electronics fit only.
Recommended
Consumer Remote Control Transmitter
The PIC16C62A-04I/SS is well matched to consumer IR/RF remote-control transmitters thanks to its low standby current of 1 uA at 3V/32 kHz, 22 I/O for keypad scanning, and CCP module for IR-carrier generation at 38 kHz. The 4 MHz instruction cycle is fast enough to encode RC5, NEC, and Sony SIRC protocols in real time. The 28-SSOP package fits inside a slim remote housing. OTP memory prevents cloning of the transmit protocol. With only 33 single-word instructions, the firmware is small enough to fit in 3.5 KB easily. For new universal-remote designs, use the flash-based PIC16F628A so the OEM can update the device database in the field without retooling.
Recommended
Smart Sensor Node / IoT Edge Device
The PIC16C62A-04I/SS can act as a low-power edge node for sensor conditioning and pre-processing in simple IoT or building-automation systems. The on-chip USART provides a serial link to a host MCU or wireless module, while the CCP module generates timing pulses for ultrasonic or IR distance measurement. Low standby current (1 uA at 3V/32 kHz) supports battery-powered sensor nodes with multi-year lifetime. The 28-SSOP package fits small sensor PCBs. The OTP memory is appropriate when the sensor calibration constants and protocol are fixed at production. For nodes requiring field updates or OTA reprogramming, switch to a flash-based PIC16F or PIC18 part with the same SSOP footprint. The PIC16C62A remains a cost-effective, deterministic 8-bit controller for simple sensor interfaces.
Recommended
Recommended Products Summary
Engineering reference data for PIC16C62A-04I/SS β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16C62A-04/SS | PIC16C62A-04E/SS | PIC16C62B-04I/SS | PIC16F62A-I/SS | PIC16F628A-I/SS |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SSOP | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same | 28-SSOP - same |
| Program Memory | 3.5 KB OTP EPROM | 3.5 KB OTP EPROM | 3.5 KB OTP EPROM | 3.5 KB OTP EPROM | 3.5 KB Flash | 3.5 KB Flash |
| Data RAM | 128 B | 128 B | 128 B | 128 B | 128 B | 224 B |
| Max CPU Clock | 4 MHz | 4 MHz | 4 MHz | 4 MHz | 20 MHz | 20 MHz |
| Operating Voltage | 2.5 V to 6.0 V | 2.5 V to 6.0 V | 2.5 V to 6.0 V | 2.5 V to 6.0 V | 2.0 V to 5.5 V | 2.0 V to 5.5 V |
| Temperature Grade | Industrial -40C to +85C | Commercial 0C to +70C | Extended -40C to +125C | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C |
| Memory Type | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM | Flash | Flash |
| Lifecycle | NRND | NRND | NRND | NRND | Active | Active |
Key Differentiators
- Industrial temperature grade at 4 MHz in 28-SSOP (vs PIC16C62A-04/SS)
- Flash-based drop-in migration to active lifecycle (vs PIC16F62A-I/SS)
- Higher RAM and internal oscillator vs C62A OTP (vs PIC16F628A-I/SS)
Design Notes
The PIC16C62A-04I/SS typical supply current is 15 uA at 5V/4 MHz and 1 uA in standby at 3V/32 kHz. Place a 0.1 uF ceramic decoupling capacitor as close as possible to the VDD pin (pin 20) with a short trace to VSS (pin 19). For mixed-signal designs using the ADC, add a 10 uF bulk capacitor on the AVDD rail if available, or share VDD with a ferrite bead and additional 0.1 uF cap. Brown-out reset and power-on reset are integrated; configure the PWRT and OST via the configuration word to ensure a clean startup. Estimated: oscillator start-up time at 4 MHz crystal is ~1024 Tosc (~256 us), contributing to overall reset latency.
The 28-SSOP package has 0.65 mm pitch - keep SSOP land patterns on the standard IPC-7351 nominal footprint with 0.40 mm wide pads and 0.20 mm solder-mask sliver. Route the MCLR/VPP pin (pin 1) with a 10 kohm pull-up to VDD and a 0.1 uF cap to ground for noise immunity. The ICSP pins RB6/PGC and RB7/PGD should be brought to a 2x3 or 1x6 header for in-circuit programming. Keep the OSC1/OSC2 traces short and symmetric; place the crystal within 5 mm of the pins to avoid startup failures. Use a ground pour under the SSOP to provide thermal dissipation and a low-impedance return path.
Do not assume the OTP memory can be re-programmed in-circuit - it cannot. A windowed JW-package variant (PIC16C62A-04/JW) is required for firmware iteration. When migrating from PIC16C62A to PIC16F62A, verify register-level compatibility, especially the EECON1/EECON2 EEPROM emulation sequence. The PIC16F62A also supports low-voltage ICSP, which the OTP PIC16C62A does not. For designs exceeding 5.5V supply, use the PIC16C62A-04E/SS extended temperature variant with the same firmware. Estimated: in-circuit programming via ICSP requires RB6/RB7 to be free of loading above ~50 pF - heavy capacitance on these pins will fail programming.
Compliance Information
Compliance status not present in the verified web data; the PIC16C62A family is OTP EPROM-based, NRND, and pre-dates universal RoHS documentation. For new RoHS-compliant designs, migrate to the flash-based PIC16F62A or PIC16F628A which carry full RoHS/REACH compliance.