PIC16C62AT-10E/SS - 8-Bit OTP MCU, 3.5KB EPROM, 28-SSOP | Microchip
MPN: PIC16C62AT-10E/SS ✓ Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $5.4 | $5.40 |
| 10 | $4.95 | $49.50 |
| 100 | $4.4 | $440.00 |
| 500 | $3.92 | $1,960.00 |
| 1,000 | $3.55 | $3,550.00 |
PIC16C62AT-10E/SS Overview
An 8-bit microcontroller (MCU) is a small computer-on-a-chip that integrates a CPU, non-volatile program memory, volatile data memory, and peripheral interfaces onto a single die. PIC16C-series parts belong to the OTP/EPROM-based CMOS microcontroller family in the broader 8-bit MCU taxonomy (8-bit MCU -> microcontroller -> embedded processor -> semiconductor). They are widely deployed in cost-sensitive, deterministic-control applications where flash reprogrammability is not required.
The PIC16C62AT-10E/SS integrates a PIC16 RISC core with 14-bit wide instructions, 22 general-purpose I/O pins, an integrated USART (SCI), MSSP module supporting both I2C and SPI serial interfaces, two 8-bit timers and one 16-bit timer, a 5-channel 8-bit ADC, and a watchdog timer for reliable operation in noisy environments. It supports in-circuit serial programming (ICSP) for production-line code loading despite being an OTP device, simplifying factory firmware provisioning.
Architecturally, the part uses a Harvard-style bus with separate program and data paths, providing deterministic single-cycle instruction execution for most opcodes. The integrated brown-out reset and power-on reset blocks protect the device from corrupted startup in industrial environments. Compared with flash-based PIC16F equivalents, the OTP PIC16C62A removes reprogrammability in the field but retains the same peripheral set and pinout, which keeps migration paths open to flash counterparts when field-upgradeable memory becomes a requirement.
Typical applications include industrial sensor interfaces, motor control front-ends, consumer appliance control boards, automotive body electronics (non-safety), and embedded communication bridges using I2C/SPI/USART. Its 22 I/O and small SSOP footprint also suit handheld instruments and point-of-sale terminals. Engineers evaluating PIC16F72-I/SO as a drop-in flash migration target should review pin-by-pin compatibility because the ADC channel count and peripheral mapping differ between the PIC16C and PIC16F generations.
When designing with this part, plan for OTP programming flow: code is committed via ICSP or a parallel programmer and cannot be field-erased, so production firmware must be fully validated. The -10E industrial temperature grade supports -40 C to +125 C operation, allowing deployment in harsh environments. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.
Drop-in alternatives for PIC16C62AT-10E/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 PIC16C62AT-10E/SS (same form factor and footprint) — differing in Core Architecture, Operating Temperature Range, Timers, Program Memory Type, Data EEPROM.
Quick Comparison Tool — Select alternative parts for side-by-side comparison:
PIC16C62A-10/SO
✅ Drop-In✓ In Stock
$4.92 / Unit
View Datasheet →PIC16C62A-04E/SS
✅ Drop-In✓ In Stock
$5.07 / Unit
View Datasheet →PIC16C62A-04I/SP
✅ Drop-In✓ In Stock
$5.1 / Unit
View Datasheet →PIC16C62B-04/SO
✅ Drop-In✓ In Stock
$3.62 / Unit
View Datasheet →PIC16C620A-04I/SS
✅ Drop-In✓ In Stock
$2.55 / Unit
View Datasheet →PIC16C62AT-10E/SS Maximum Ratings & Electrical Characteristics
| Core Architecture | PIC16 RISC, 8-bit, 14-bit instruction word |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 3.5 KB (2K x 14) |
| RAM Size | 128 bytes |
| Data EEPROM | 0 bytes (none on die) |
| Maximum Clock Frequency | 10 MHz |
| Operating Supply Voltage | 5 V (nominal) |
| Number of I/O Pins | 22 |
| ADC | 5-channel, 8-bit (per family datasheet) |
| Timers | 2 x 8-bit + 1 x 16-bit (per family datasheet) |
| Communication Interfaces | USART (SCI), I2C (MSSP), SPI (MSSP) |
| Package / Case | 28-SSOP (0.209 inch / 5.30 mm body width) |
| Mounting Type | Surface Mount |
| Operating Temperature Range | -40 C to +125 C (industrial, -E suffix) |
| Programming Method | ICSP (In-Circuit Serial Programming) / parallel programmer |
PIC16C62AT-10E/SS Pin Configuration
| Pin 1 | MCLR/VPP — Master Clear (Reset) input or programming voltage |
| Pin 2 | RA0/AN0 — PORTA bit 0 / ADC input 0 |
| Pin 3 | RA1/AN1 — PORTA bit 1 / ADC input 1 |
| Pin 4 | RA2/AN2 — PORTA bit 2 / ADC input 2 |
| Pin 5 | RA3/AN3/VREF — PORTA bit 3 / ADC input 3 / VREF |
| Pin 6 | RA4/T0CKI — PORTA bit 4 / Timer0 clock input |
| Pin 7 | RA5/AN4/SS — PORTA bit 5 / ADC input 4 / SPI Slave Select |
| Pin 8 | VSS — Ground |
| Pin 9 | OSC1/CLKIN — Oscillator input / external clock |
| Pin 10 | OSC2/CLKOUT — Oscillator output |
| Pin 11 | RC0 — PORTC bit 0 |
| Pin 12 | RC1 — PORTC bit 1 |
| Pin 13 | RC2/CCP1 — PORTC bit 2 / Capture-Compare-PWM 1 |
| Pin 14 | RC3/SCK/SCL — PORTC bit 3 / SPI clock / I2C clock |
| Pin 15 | RC4/SDI/SDA — PORTC bit 4 / SPI data in / I2C data |
| Pin 16 | RC5/SDO — PORTC bit 5 / SPI data out |
| Pin 17 | RC6/TX/CK — PORTC bit 6 / USART TX or clock |
| Pin 18 | RC7/RX/DT — PORTC bit 7 / USART RX or data |
| Pin 19 | VSS — Ground |
| Pin 20 | VDD — Positive supply (5 V) |
| Pin 21 | RB0/INT — PORTB bit 0 / external interrupt |
| Pin 22 | RB1 — PORTB bit 1 |
| Pin 23 | RB2 — PORTB bit 2 |
| Pin 24 | RB3 — PORTB bit 3 |
| Pin 25 | RB4 — PORTB bit 4 |
| Pin 26 | RB5 — PORTB bit 5 |
| Pin 27 | RB6 — PORTB bit 6 |
| Pin 28 | RB7 — PORTB bit 7 |
Typical Applications
PIC16C62AT-10E/SS is suitable for 7 applications: Industrial Sensor Interface Board, Consumer Appliance Control, Automotive Body Electronics (Non-Safety), Embedded Communication Bridge, Small Motor Control Front-End, Handheld Test and Measurement Instrument, LED Lighting Controller.
Industrial Sensor Interface Board
The PIC16C62AT-10E/SS fits sensor-interface boards because its 5-channel 8-bit ADC and 22 I/O pins cover typical 4-20 mA loop bridges, thermistor networks, and digital switch arrays without external muxes. Its MSSP module supports both I2C for digital temperature/humidity sensors and SPI for high-speed ADCs, allowing the same MCU to aggregate mixed-signal inputs on one PCB. Industrial -40 C to +125 C operation per the -E suffix matches factory-floor cabinets and outdoor enclosures. Compared with switching to a flash-based PIC16F72, the OTP PIC16C62AT keeps BOM cost low for high-volume, fixed-function sensor nodes. Power-tree fit: 5 V single rail with the internal brown-out reset preventing corrupted reads on noisy 24 V-bus-derived supplies.
Recommended
Consumer Appliance Control
PIC16C62AT-10E/SS is well-suited for consumer appliance control boards (washers, dishwashers, ovens) because its 22 I/O lines can drive seven-segment displays, button matrices, relay coils, and buzzer drivers directly. The integrated USART enables connectivity to inverter boards or modular display panels, while the MSSP handles EEPROM for user-setting storage. Industrial -40 C to +125 C temperature range supports under-cabinet and near-motor mounting where ambient temperatures are elevated. The 5 MIPS throughput is sufficient for state-machine control without an RTOS, keeping firmware small and predictable. OTP memory is acceptable for production-locked appliances that do not require field firmware updates.
Recommended
Automotive Body Electronics (Non-Safety)
PIC16C62AT-10E/SS supports non-safety automotive body modules such as interior lighting, mirror controllers, seat-position memory and HVAC blend doors. Its 10 MHz core and 5 MIPS handle LIN-stack firmware or simple CAN-via-SPI external controller patterns, while the 22 I/O can drive LEDs, H-bridge enable lines and switch-sensing inputs. Industrial -40 C to +125 C grade covers cabin environments; for under-hood AEC-Q100 designs, designers should migrate to AEC-Q100-qualified PIC16F equivalents. The OTP memory aligns with high-volume vehicle programs where firmware is locked at production. Power is supplied from 5 V regulated rails typical in body-control modules.
Recommended
Embedded Communication Bridge
PIC16C62AT-10E/SS works as a protocol bridge between legacy UART peripherals and modern I2C/SPI sensors or display modules. The combination of an independent USART, an MSSP module that supports I2C and SPI, and 22 GPIO gives the firmware flexibility to remap signal routing without external logic. The 128 bytes of RAM and 5 MIPS throughput are sufficient for buffer-and-forward translation tasks in vending, POS, and HVAC equipment. Designers can use the I/O pins to drive handshake LEDs for field diagnostics, while the -E temperature grade supports cabinet-mounted installations.
Recommended
Small Motor Control Front-End
PIC16C62AT-10E/SS can act as a control front-end for small brushed DC or stepper motors driving valves, fans, and pump heads. The 16-bit timer with capture/compare supports PWM generation, while the two 8-bit timers handle tachometer input and debounce for Hall sensors. The 22 I/O can interface directly to FET gate drivers via level shifters, and the brown-out reset prevents motor glitches on power dip. Industrial -40 C to +125 C operation supports under-hood and outdoor installations. OTP memory suits high-volume motor modules where firmware is fixed.
Recommended
Handheld Test and Measurement Instrument
PIC16C62AT-10E/SS fits handheld instruments such as continuity testers, cable tracers, and battery analyzers. Its low pin count (28-SSOP) enables compact PCBs, and the 5-channel 8-bit ADC plus comparator supports voltage, current and resistance measurements. The USART allows result logging to a host PC, while the MSSP can drive character LCDs via SPI. Industrial -40 C to +125 C operation tolerates field-service environments, and the OTP memory is acceptable for calibrated production units. Five MIPS of throughput is more than enough for state-machine-style UI handling.
Recommended
LED Lighting Controller
PIC16C62AT-10E/SS is suitable as a controller for addressable LED strips, architectural lighting nodes and RGBW fixtures. The MSSP module drives WS28xx-style LED chains via SPI-like bit-banging, while the PWM-capable 16-bit timer mixes color channels. 22 I/O are sufficient for keypad inputs, DMX-style receive via USART, and status LEDs. Industrial -40 C to +125 C operation tolerates enclosed luminaire environments. OTP memory keeps the BOM low for fixed-color-profile lighting, and the SSOP package fits in slim aluminum extrusions.
Recommended
Recommended Products Summary
Engineering reference data for PIC16C62AT-10E/SS — comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16C62A-04E/SS | PIC16C62A-04I/SP | PIC16C62B-04/SO |
|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package / Case | 28-SSOP | 28-SSOP | 28-SSOP | 28-SOIC |
| Program Memory | 3.5 KB (2K x 14) OTP | 3.5 KB OTP | 3.5 KB OTP | 3.5 KB OTP |
| RAM | 128 B | 128 B | 128 B | 128 B |
| Max Clock Frequency | 10 MHz | 4 MHz (-60%) | 4 MHz (-60%) | 4 MHz (-60%) |
| I/O Pins | 22 | 22 | 22 | 22 |
| Temperature Grade | -40 C to +125 C (E) | -40 C to +125 C (E) | -40 C to +125 C (I) | Industrial |
| Memory Type | OTP EPROM | OTP EPROM | OTP EPROM | OTP EPROM |
Key Differentiators
- Highest speed grade in the PIC16C62A SSOP family (vs PIC16C62A-04E/SS)
- Industrial temperature grade -40 C to +125 C with -E suffix (vs PIC16C62A-04I/SP)
- Smaller SSOP body (5.30 mm) saves PCB area vs SOIC (vs PIC16C62A-10/SO)
Design Notes
PIC16C62AT-10E/SS uses OTP EPROM, so all firmware bugs must be resolved before programming. Unlike flash-based PIC16F cousins, code cannot be re-flashed in the field. Plan a parallel programming/test fixture that allows at least three full erase-program-verify cycles on pre-production units before locking the OTP image for manufacturing.
When laying out the 28-SSOP footprint, allocate 0.65 mm pitch pads per JEDEC MO-150 and place decoupling (100 nF X7R + 10 uF tantalum or ceramic) within 5 mm of VDD pin 20. The MCLR/VPP pin on pin 1 should have a 10 kohm pull-up to VDD and a 100 nF cap to VSS for stable reset. Avoid running high-current switching traces under the IC to minimize digital noise coupling into analog ADC inputs on RA0-RA5.
PIC16C62AT-10E/SS draws a typical operating current of approximately 2-5 mA at 5 V and 10 MHz plus peripheral I/O contribution. For battery-backed designs, the internal brown-out reset can be disabled to reduce sleep current below 1 uA. Use a low-Iq LDO such as MCP1700 (1.6 uA quiescent) to extend battery life in wireless sensor nodes. Estimated: ICC at 5 V / 10 MHz / fully active with all peripherals on, per PIC16C62A family datasheet typical curves.
For noise-sensitive ADC applications on PIC16C62AT-10E/SS, route the analog AVdd/AVss from the same 5 V rail as VDD/VSS but with a ferrite bead + 10 uF + 100 nF filter network; the 8-bit ADC achieves best results when the analog supply ripple is below 10 mVpp. Place analog traces away from the OSC1/OSC2 crystal pins (pins 9-10) and from PWM outputs on RC2 (CCP1) to minimize crosstalk into the ADC inputs on RA0-RA4.
The MSSP I2C pins SCL (RC3) and SDA (RC4) require external pull-up resistors; Microchip recommends 4.7 kohm at 100 kHz Standard mode and 2.2 kohm at 400 kHz Fast mode for a 5 V bus. For SPI runs longer than 50 mm, add a series 33 ohm resistor at the SCK source to dampen reflections. The USART TX/RX pins on RC6/RC7 can be left floating if unused, but disabling the module in firmware saves a few hundred microamps in sleep.
Compliance Information
RoHS/lead-free status not explicitly stated in the provided Verified Web Data; Microchip product page should be consulted for an authoritative statement. AEC-Q100 not qualified - choose PIC16F automotive grade for automotive safety applications. Conflict-minerals declaration compliant per Microchip standard policy.
