PIC16C62BT-04I/SS - 8-Bit 4MHz OTP MCU 3.5KB | Microchip
MPN: PIC16C62BT-04I/SS β Active| Qty | Unit Price | Extended |
|---|---|---|
| 1 | $7.95 | $7.95 |
| 10 | $7.2 | $72.00 |
| 100 | $6.45 | $645.00 |
| 500 | $5.85 | $2,925.00 |
| 1,000 | $5.3 | $5,300.00 |
PIC16C62BT-04I/SS Overview
A microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory, working RAM, and programmable I/O peripherals. The PIC16C62B family belongs to the PIC16C mid-range lineup, which sits hierarchically under Microchip's 8-bit MCU portfolio (PIC10/12/16/24) and the broader class of CMOS RISC controllers. Unlike Harvard-architecture competitors, the PIC16C series uses a 14-bit instruction word with only 35 single-word instructions to learn, all single-cycle except program branches that take two cycles. This makes the PIC16C62B family attractive for cost-sensitive, deterministic control tasks where code density and predictable interrupt latency are valued over raw throughput.
Key features include a fully static design supporting DC to 20MHz operation, a wide operating voltage range from 2.5V to 6.0V across the family, low-power consumption of 15 uA typical at 5V/4MHz and 1 uA typical at 3V/32 kHz, and three timer/counter modules (Timer0, Timer1, Timer2). The 22 I/O ports can source/sink 25 mA per pin, enabling direct LED drive without external transistors. The device includes an analog comparator module, a USART for serial communication, and a Watchdog Timer (WDT) with its own on-chip RC oscillator for reliable operation.
Technically, the PIC16C62BT-04I/SS uses Microchip's classic EPROM/ROM process with windowed (JW) variants for prototype development. The 4MHz speed grade (suffix -04) targets DC to 4MHz instruction execution, while family members extend to 20MHz. The integrated Power-on Reset, Brown-out Reset, and Power-up Timer reduce external component count. Industrial temperature range is -40C to +85C.
Typical applications include motor control, security systems, appliance control, automotive body electronics (non-safety), and industrial automation. This part is suitable for brownfield designs requiring 28-pin SSOP with OTP memory and PIC mid-range instruction set compatibility.
When designing with the PIC16C62BT-04I/SS, verify the EPROM window vs OTP trade-off against your production volume. The -04 speed grade limits instruction throughput to 4 MIPS maximum, and you may need a faster grade (e.g., -20) for time-critical loops.
This page synthesizes verified distributor pricing, drop-in PIC16C62B-family alternatives sourced from the Microchip cross-reference, and practical design notes that go beyond the manufacturer datasheet.
Drop-in alternatives for PIC16C62BT-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 PIC16C62BT-04I/SS (same form factor and footprint) β differing in Instruction Set, Operating Temperature, Package, Program Memory Size, Program Memory Type.
Quick Comparison Tool β Select alternative parts for side-by-side comparison:
PIC16C62B-04I/SS
β Drop-Inβ In Stock
$5.4 / Unit
View Datasheet βPIC16C62B-04E/SS
β Drop-Inπ Reference alternative (not in catalog)
PIC16C62B-20I/SS
β Drop-Inπ Reference alternative (not in catalog)
PIC16C62AT-04I/SS
β Drop-Inβ In Stock
$3.6 / Unit
View Datasheet βPIC16C62A-04I/SS
β Drop-Inβ In Stock
$6.1 / Unit
View Datasheet βPIC16C622-04I/SS
β Drop-Inπ Reference alternative (not in catalog)
PIC16C62BT-04I/SS Maximum Ratings & Electrical Characteristics
| Product Type | 8-bit CMOS Microcontroller |
| Core | PIC16C RISC |
| Program Memory Type | OTP (One-Time Programmable) EPROM |
| Program Memory Size | 3.5KB (2K x 14) |
| Data RAM | 128 bytes |
| Maximum Clock Speed | 4 MHz (-04 grade) |
| Supply Voltage Range | 4.0 V to 5.5 V |
| I/O Pins | 22 |
| Package | 28-SSOP (0.209 inch / 5.30 mm width) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40C to +85C (Industrial) |
| Instruction Set | 35 single-word instructions |
| Instruction Cycle | 4 clock periods (1 instruction cycle per 4 oscillator cycles) |
| Timers | Timer0, Timer1, Timer2 |
| Peripherals | Brown-out Reset, Power-on Reset, Watchdog Timer, Analog Comparator, USART |
| Architecture | Harvard, RISC |
| Process Technology | CMOS EPROM/ROM |
PIC16C62BT-04I/SS Pin Configuration
| Pin 1 | MCLR/VPP β Master Clear (reset) input / programming voltage |
| Pin 2 | RA0/AN0 β PORTA bit 0 / analog comparator input |
| Pin 3 | RA1/AN1 β PORTA bit 1 / analog comparator input |
| Pin 4 | RA2/AN2 β PORTA bit 2 / analog comparator reference |
| Pin 5 | RA3/AN3 β PORTA bit 3 / analog comparator output |
| Pin 6 | RA4/T0CKI β PORTA bit 4 / Timer0 clock input |
| Pin 7 | RA5 β PORTA bit 5 |
| Pin 8 | OSC1/CLKIN β Oscillator crystal input / external clock in |
| Pin 9 | OSC2/CLKOUT β Oscillator crystal output / clock out |
| Pin 10 | RC0 β PORTC bit 0 |
| Pin 11 | RC1 β PORTC bit 1 |
| Pin 12 | RC2 β PORTC bit 2 |
| Pin 13 | RC3 β PORTC bit 3 |
| Pin 14 | RC4 β PORTC bit 4 |
| Pin 15 | RC5 β PORTC bit 5 |
| Pin 16 | RC6 β PORTC bit 6 |
| Pin 17 | RC7 β PORTC bit 7 |
| Pin 18 | RB0/INT β PORTB bit 0 / external interrupt |
| Pin 19 | RB1 β PORTB bit 1 |
| Pin 20 | RB2 β PORTB bit 2 |
| Pin 21 | RB3 β PORTB bit 3 |
| Pin 22 | RB4 β PORTB bit 4 |
| Pin 23 | RB5 β PORTB bit 5 |
| Pin 24 | RB6 β PORTB bit 6 |
| Pin 25 | RB7 β PORTB bit 7 |
| Pin 26 | VSS β Ground reference |
| Pin 27 | VDD β Positive supply voltage |
| Pin 28 | NC β Not connected (per datasheet) |
Typical Applications
PIC16C62BT-04I/SS is suitable for 6 applications: Industrial Motor Control, Security and Alarm Panels, White Goods / Appliance Control, Automotive Body Electronics (Non-Safety), HVAC Control Modules, Lighting Control and DMX.
Industrial Motor Control
The PIC16C62BT-04I/SS suits small DC motor and stepper control loops in industrial equipment. Its 22 I/O pins (each capable of 25 mA source/sink) directly drive H-bridge gate signals, encoder inputs, and limit-switch sensing without external buffers. The 4MHz instruction rate delivers 1 MIPS, adequate for trapezoidal commutation at moderate RPM. Industrial -40C to +85C operation tolerates control cabinet environments.
Recommended
Security and Alarm Panels
The PIC16C62BT-04I/SS fits hard-wired security control panels where deterministic response time is critical. Its 35 single-word PIC instructions execute predictably in 1 cycle (4 clocks), enabling tight interrupt latency for sensor polling. Brown-out Reset and Watchdog Timer ensure the panel recovers from brownouts or firmware lockups. OTP memory secures the firmware against external read-back, important for anti-tamper requirements.
Recommended
White Goods / Appliance Control
The PIC16C62BT-04I/SS is well-suited to washing machine, dishwasher, and microwave oven controllers. The 22 I/O pins handle keypad scanning, LED/relay drivers, and triac-firing outputs. Wide 4.0-5.5V supply tolerance tolerates rectified mains-rail variation. Low-power modes (15 uA at 4 MHz, 1 uA at 32 kHz) support standby power targets. Industrial temp range covers behind-panel thermal environment.
Recommended
Automotive Body Electronics (Non-Safety)
The PIC16C62BT-04I/SS drives non-safety body modules like seat controllers, mirror adjusters, and accessory timers. The 4 MHz MIPS, 22 I/O pins, and PIC 40C instruction compatibility suit LIN-bus slaves and PWM-driven actuators. Brown-out Reset is critical for crank-cold-start transients. Industrial temp range covers cabin-mounted electronics. (Not AEC-Q100 qualified - choose PIC16F equivalent for AEC-Q100 designs.)
Recommended
HVAC Control Modules
The PIC16C62BT-04I/SS controls thermostat and HVAC zone dampers. Its analog comparator enables thermistor sensing without an external ADC, lowering BOM cost. The 22 I/O drive port expansion pins fan relay triac drivers, valve actuators, and LCD segment drivers. OTP locks firmware to prevent unauthorized HVAC reconfiguration. Industrial temperature grade covers attic/equipment-room installations.
Recommended
Lighting Control and DMX
The PIC16C62BT-04I/SS handles architectural lighting and DMX-512 receiver nodes. The integrated USART supports DMX-512 (250 kbaud) receive directly, freeing CPU cycles for fade math. PWM outputs (via Timer2) generate 8-bit dimming without external logic. The 22 I/O drive port pins control 0-10V dimmers, relay packs, and status LEDs. Industrial temp range covers indoor fixtures.
Recommended
Recommended Products Summary
Engineering reference data for PIC16C62BT-04I/SS β comparison, design guidance, and compliance information.
Selection Guide
Comparison with Alternatives
| Parameter | This Product | PIC16C62B-04I/SS | PIC16C62B-04E/SS | PIC16C62B-20I/SS | PIC16C62AT-04I/SS | PIC16C62A-04I/SS | PIC16C622-04I/SS |
|---|---|---|---|---|---|---|---|
| Brand | Microchip Technology | 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 | 28-SSOP - same |
| Max Clock Speed | 4 MHz | 4 MHz | 4 MHz | 20 MHz | 4 MHz | 4 MHz | 4 MHz |
| Program Memory | 3.5KB OTP | 3.5KB OTP | 3.5KB OTP | 3.5KB OTP | 3.5KB OTP | 3.5KB OTP | 3.5KB OTP |
| Data RAM | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes | 128 bytes |
| Operating Temperature | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +125C (Extended) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) | -40C to +85C (Industrial) |
| I/O Pins | 22 | 22 | 22 | 22 | 22 | 22 | 22 |
| Lifecycle Status | Active | Active | Active | Active | Active | Active | Active |
Key Differentiators
- True drop-in alternative without firmware rework (vs PIC16C62B-04I/SS)
- Extended temperature for harsher environments (vs PIC16C62B-04E/SS)
- 5x faster instruction throughput (vs PIC16C62B-20I/SS)
Design Notes
The PIC16C62BT-04I/SS draws approximately 15 uA at 5V/4MHz active and 1 uA typical at 3V/32 kHz standby. Decouple VDD with a 100 nF ceramic capacitor placed within 5mm of pin 27, plus a bulk 10 uF tantalum at the regulator output. Brown-out Reset is enabled by clearing the BODEN bit in the configuration word to detect supply droops below 4.0V.
The 28-SSOP package has 0.65 mm pitch - route signals on a 0.1 mm grid with at least 8 mil traces and 8 mil spaces. Place the decoupling capacitor on the same layer as the MCU to minimize via inductance. Keep the OSC1/OSC2 traces short and surrounded by ground pour for EMI suppression. SSOP leads are fragile; use proper footprint with adequate solder mask slivers.
Do not confuse the -04 grade (4 MHz) with the -20 grade (20 MHz) - the configuration word is identical, but the timing budget differs by 5x. When programming OTP, ensure VPP (pin 1, MCLR/VPP) reaches 13V during the programming pulse; insufficient VPP causes verify errors. The 'T' suffix on T-suffix variants denotes Tape and Reel packaging, not a silicon variant.
Each PORTB and PORTA pin can source or sink 25 mA, but the total port current should not exceed 200 mA across all pins simultaneously. For PWM-controlled loads, use Timer2 with a postscaler to generate 8-bit PWM at typical 1-10 kHz rates. The analog comparator shares pins with PORTA, so configure analog functions before enabling digital I/O on those pins.
Compliance Information
RoHS/REACH/lead-free status not specified in verified web data - marked unknown. PIC16C OTP family is generally non-AEC-Q100 qualified; for AEC-Q100 designs, migrate to PIC16F or PIC18 automotive-grade equivalent.
