PIC16C62A-10I/SO - 8-Bit OTP MCU, 3.5KB, 10MHz | Microchip
MPN: PIC16C62A-10I/SO ✗ End of Life| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.46 | $5.46 |
| 10 | $4.9 | $49.00 |
| 100 | $4.4 | $440.00 |
| 500 | $3.95 | $1,975.00 |
| 1,000 | $3.55 | $3,550.00 |
PIC16C62A-10I/SO Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU, memory, and peripherals; an 8-bit MCU executes arithmetic on 8-bit data words and is typically chosen for cost-sensitive embedded control rather than compute-intensive tasks. The PIC16C62A belongs to the Microchip PIC16C family of mid-range microcontrollers, which occupies the broader hierarchy: 8-bit microcontroller -> microcontroller -> embedded processor -> semiconductor. The '16C' prefix indicates One-Time-Programmable (OTP) EPROM program memory, an older technology that contrasts with modern flash-based PIC16F parts.
Key features include a fully static design that allows the clock to be stopped, low-power consumption of 15 uA typical at 5 V / 4 MHz and 1 uA typical at 3 V / 32 kHz, and 35 single-word instructions to learn. The RISC Harvard architecture provides deterministic instruction timing, and integrated peripherals typically include timers, a watchdog timer, and a synchronous/asynchronous serial port (SSP) suitable for SPI and I2C master/slave operation.
Typical applications include appliance control, automotive body electronics (non-safety), industrial sensor interfaces, and legacy embedded products where the OTP-only program memory is acceptable for production volumes. The 22 I/O pins and external oscillator interface allow flexible integration with buttons, LEDs, relays, and serial peripherals.
When designing with this part, note that OTP memory requires a windowed package for development or the parallel slave programming mode for production programming, and that Microchip recommends migrating to flash-based PIC16F equivalents for new designs. Per Microchip, PIC16C62A is Not Recommended for new designs (NRND), making modern replacements the better long-term choice.
This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
Drop-in alternatives for PIC16C62A-10I/SO — 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-10I/SO (same form factor and footprint) — differing in Operating Temperature Range, Program Memory Size, Program Memory Type, Mounting Type, Maximum Clock Frequency.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16C62A-10I/SP
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16C62A-04I/SO
✅ Drop-In📋 Reference alternative (not in catalog)
PIC16C62A-04E/SS
✅ Drop-In✓ In Stock
$5.07 / Unit
View Datasheet →PIC16C62A-04E/SO
✅ Drop-In✓ In Stock
$4.75 / Unit
View Datasheet →PIC16C62A-04I/SP
✅ Drop-In✓ In Stock
$5.1 / Unit
View Datasheet →PIC16C62A-10I/SO
✅ Drop-In✓ In Stock
$3.55 / Unit
View Datasheet →PIC16C62A-10I/SO Maximum Ratings & Electrical Characteristics
| Core | PIC16 / 8-bit RISC |
| Program Memory Size | 3.5 KB (2K x 14) OTP EPROM |
| RAM Size | 128 x 8 bytes |
| EEPROM Size | None (OTP only) |
| Maximum Clock Frequency | 10 MHz |
| Operating Speed | 5 MHz instruction rate (10 MIPS at 10 MHz) |
| Number of I/O Pins | 22 |
| Supply Voltage Range | 2.5 V to 6.0 V (typical up to 6.0 V) |
| Oscillator Type | External |
| Operating Temperature Range | -40C to +85C (Industrial, 'I' grade) |
| Package / Case | 28-SOIC (0.295", 7.50 mm width) |
| Mounting Type | Surface Mount |
| Program Memory Type | OTP (One-Time-Programmable) EPROM |
| Instruction Set | 35 single-word instructions |
| Supply Current (typ.) | 15 uA at 5 V / 4 MHz; 1 uA at 3 V / 32 kHz |
| Architecture | Harvard, fully static |
| MSL Level | 1 (unlimited floor life at <30C / 85% RH) |
PIC16C62A-10I/SO Pin Configuration
| Pin 1 | RA2 — PORTA I/O bit 2 (analog/digital) |
| Pin 2 | RA3 — PORTA I/O bit 3 (analog/digital) |
| Pin 3 | RA4 — PORTA I/O bit 4 (analog/T0CKI) |
| Pin 4 | RA5 — PORTA I/O bit 5 (analog/SS) |
| 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 (PIC16C6X 28-pin dual-VSS) |
| Pin 15 | OSC2/CLKOUT — Oscillator output / clock out |
| Pin 16 | OSC1/CLKIN — Oscillator input / external clock in |
| Pin 17 | RC0 — PORTC bit 0 |
| Pin 18 | RC1 — PORTC bit 1 |
| Pin 19 | RC2 — PORTC bit 2 |
| Pin 20 | RC3 — PORTC bit 3 |
| Pin 21 | RC4 — PORTC bit 4 |
| Pin 22 | RC5 — PORTC bit 5 |
| Pin 23 | RC6 — PORTC bit 6 |
| Pin 24 | RC7 — PORTC bit 7 |
| Pin 25 | VDD — Positive supply voltage |
| Pin 26 | VSS — Ground reference |
| Pin 27 | RA0 — PORTA bit 0 (analog/digital) |
| Pin 28 | RA1 — PORTA bit 1 (analog/digital) |
| Pin 29 | MCLR/VPP — Master clear (reset) / programming voltage |
Typical Applications
PIC16C62A-10I/SO is suitable for 6 applications: Appliance Control (Washing Machines, Microwaves), Automotive Body Electronics (Non-Safety), Industrial Sensor Interface Modules, Legacy Embedded Products and Replacements, Hobbyist and Educational Projects, Simple Serial-Communications Bridges.
Appliance Control (Washing Machines, Microwaves)
The PIC16C62A-10I/SO fits appliance control boards where its 22 I/O pins can directly drive LEDs, keypads, relays, and seven-segment displays without external glue logic. The 3.5 KB OTP program memory holds appliance state-machine firmware such as wash cycles, door-lock interlocks, and timer sequences, while the 10 MHz clock provides the deterministic timing needed for sensor sampling at 100 Hz or faster. Industrial -40C to +85C operation covers kitchen and laundry environments, and the 15 uA typical active current keeps wall-power energy consumption manageable. For high-volume appliance lines, the OTP memory is actually an advantage because it eliminates the field-reprogramming risk of flash parts.
Recommended
Automotive Body Electronics (Non-Safety)
The PIC16C62A-10I/SO is suitable for non-safety automotive body modules such as interior lighting controllers, mirror-adjust drivers, and accessory multiplexers where its 22 I/O pins handle switch inputs, MOSFET gate drives, and LIN or UART communication to a central BCM. The 6.0 V maximum supply rating tolerates typical 12 V vehicle rails after a 5 V regulator, and the industrial -40C to +85C temperature grade covers most cabin environments. Note that the part lacks AEC-Q100 qualification, so it should not be used in safety-critical ECUs - reserve it for body accessories where a non-automotive-grade MCU is acceptable per OEM policy.
Recommended
Industrial Sensor Interface Modules
The PIC16C62A-10I/SO serves as the brain of industrial sensor-interface boards that read 4-20 mA loops, thermistors, or digital switches and report data over RS-232 or RS-485. Its 10 MIPS performance supports 100 Hz ADC-equivalent polling rates via comparator or external ADC interfacing, while the 22 I/O pins accommodate multiple sensor inputs and an RS-485 transceiver handshake. The Harvard architecture and deterministic instruction timing make the part well-suited for time-multiplexed sensor sampling in factory-automation modules. Use the extended-temp PIC16C62A-04E/SO variant when the module mounts near motors or heaters exceeding 85C ambient.
Recommended
Legacy Embedded Products and Replacements
The PIC16C62A-10I/SO is most commonly used today as a form-fit-function replacement for original PIC16C62A sockets in legacy products that are still in field service - industrial controllers, scientific instruments, and medical-device subassemblies manufactured in the late 1990s and 2000s. The OTP EPROM ensures the firmware is immutable (a regulatory plus for medical and aerospace legacy systems), and the SOIC wide-body package matches the original PCB footprint. For end-of-life management, plan a flash-based migration before remaining factory stock is exhausted; the NRND lifecycle status means Microchip will eventually discontinue the part.
Recommended
Hobbyist and Educational Projects
The PIC16C62A-10I/SO and its through-hole PIC16C62A-10I/SP sibling are popular in university embedded-systems courses and hobbyist projects because the PIC16 instruction set is small (35 instructions) and well-documented in Microchip application notes. Students program the device using MPLAB with a PICSTART Plus or MPLAB PM3 programmer, learning RISC fundamentals, timer configuration, and interrupt-driven design at a comfortable pace. The 22 I/O pins are enough to drive 7-segment displays, character LCDs, keypads, and a UART link to a PC terminal. Note that OTP requires a windowed device or emulator for development, so most learners start with PIC16F parts and use the PIC16C62A only when cost is the primary driver.
Recommended
Simple Serial-Communications Bridges
The PIC16C62A-10I/SO implements low-cost protocol-conversion bridges - UART-to-SPI, UART-to-parallel, or SPI-to-keypad scan - using its built-in USART and Synchronous Serial Port (SSP). With 10 MIPS, the core handles 115200 baud UART cleanly while servicing periodic SSP transfers, and 22 I/O pins give plenty of headroom for flow-control handshake signals. Industrial temp operation suits factory-floor installation, and the SOIC package is friendly to reflow assembly for OEM bridge modules. The PIC16C62A-10I/SO is well-matched to small-volume bridge products where dedicated protocol-converter ICs would be uneconomical.
Recommended
Recommended Products Summary
Engineering reference data for PIC16C62A-10I/SO — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16C62A-10I/SP | PIC16C62A-04I/SO | PIC16C62A-04E/SS | PIC16C62A-04E/SO |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 28-SOIC (7.50 mm) | 28-SPDIP - same die, different package | 28-SOIC (7.50 mm) - same | 28-SSOP - same die, different package | 28-SOIC (7.50 mm) - same |
| Max Clock Frequency | 10 MHz | 10 MHz | 4 MHz | 4 MHz | 4 MHz |
| Temperature Grade | Industrial -40C to +85C | Industrial -40C to +85C | Industrial -40C to +85C | Extended -40C to +125C | Extended -40C to +125C |
| 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 OTP EPROM |
| RAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| I/O Pins | 22 | 22 | 22 | 22 | 22 |
| Lifecycle Status | NRND (Not Recommended for new designs) | NRND | NRND | NRND | NRND |
| Supply 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 | 2.5 V to 6.0 V |
Key Differentiators
- Highest clock frequency in the PIC16C62A family (vs PIC16C62A-04I/SO)
- Wide-body SOIC for robust SMT assembly (vs PIC16C62A-04E/SS)
- Industrial temperature grade is sufficient for most applications (vs PIC16C62A-04E/SO)
- OTP memory provides firmware immutability (vs Flash-based PIC16F88-I/SO)
Design Notes
OTP EPROM program memory is one-time programmable in the production part - design mistakes in firmware cannot be patched in the field. For prototype development, use a windowed PIC16C62A-10I/JW or emulator, or migrate to PIC16F88-I/SO which is flash-based and pin-compatible. The MCLR/VPP pin on the SOIC package is pin 1 in the standard pinout, not pin 28 - verify against the datasheet diagram before laying out a PCB.
Estimated: At 5 V VDD and 4 MHz oscillator, the PIC16C62A draws 15 uA typical per the datasheet; this rises with clock frequency and peripheral activity. Add bulk decoupling (10 uF electrolytic + 0.1 uF ceramic) at the VDD pin and place a 0.1 uF ceramic as close to the device as possible to suppress switching noise on the supply rail during I/O transitions. For battery-powered designs, run the oscillator at 32 kHz to drop current to 1 uA typical.
Place the 28-SOIC wide-body (7.50 mm) footprint with a 1.27 mm pin pitch. Ensure the SOIC land pattern accounts for thermal relief on the ground pad area (there is no exposed pad on this package - all thermal paths are through the lead frame). Keep the OSC1/OSC2 traces short and surround them with a ground guard ring to minimize EMI coupling into adjacent analog signals. MCLR should have a 10 kohm pull-up to VDD and a 100 nF cap to ground for proper reset behavior.
The PIC16C62A's PORTB pins feature internal weak pull-ups that can be individually enabled via the OPTION register - use them for switch inputs to reduce external component count. PORTB pins are also interrupt-on-change capable, providing a hardware wake-up mechanism from sleep. For RC-port UART/SPI signals, add 100 ohm series resistors near the MCU to dampen reflections when driving cables or long PCB traces to peripheral ICs.
Compliance Information
RoHS and lead-free status of the -10I/SO suffix not stated explicitly in the verified data; the part is OTP EPROM technology from the late 1990s/early 2000s, when non-RoHS variants were common. PIC16C62A is not AEC-Q100 qualified (industrial temp grade only, no automotive qualification). Compliance values set to unknown per Data Authenticity Rule 9 - do not assume without verified datasheet evidence.