PIC16C662-10/PT - 8-Bit OTP MCU, 7KB EPROM, 33 I/O | Microchip
Référence : PIC16C662-10/PT ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $5.45 | $5,45 |
| 10 | $4.91 | $49,10 |
| 100 | $4.36 | $436,00 |
| 500 | $3.9 | $1 950,00 |
| 1 000 | $3.49 | $3 490,00 |
PIC16C662-10/PT Présentation
Background context: An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, digital I/O peripherals and often analog blocks on one die. Within the broader taxonomy, PIC16C662 belongs to the PIC16 family, which itself sits inside the 8-bit MCU category, the Microcontroller sub-family of Integrated Circuits (ICs). OTP EPROM memory denotes a programmable read-only cell technology that can be written once with a high-voltage programmer but cannot be electrically erased, making it well suited to high-volume production where firmware is finalized.
Key differentiating specifications include the 200 ns instruction cycle, 8-level hardware stack, 14-bit wide instruction word, integrated analog comparators with programmable voltage reference, Power-on Reset (POR), Brown-out Reset (BOR), Watchdog Timer (WDT) with its own on-chip RC oscillator, and In-Circuit Serial Programming (ICSP) capability. The 44-pin TQFP package exposes up to 33 I/O pins and provides 5 MIPS sustained throughput at 20 MHz clock, giving designers a compact footprint for cost-sensitive embedded designs.
The PIC16C662 employs a RISC-style Harvard architecture with separate program and data buses, allowing instruction fetch and operand access to occur in the same cycle. The internal oscillator and PLL-free design simplify BOM cost, while the dual analog comparators eliminate the need for external op-amps in signal-conditioning tasks such as battery monitoring or threshold detection.
Typical applications include appliance control, automotive body electronics, industrial sensor interfaces, smart card readers, battery chargers, LED lighting controllers, and embedded control boards. The integrated analog comparators make it well suited to threshold detection without external components.
When designing with this device, note that OTP memory cannot be field-updated; use the PIC16F flash-based equivalent (e.g., PIC16F914-I/PT) if firmware iteration is expected in production. ICSP programming still requires a high-voltage (typically 13 V) VPP pulse, so plan board layout to expose PGC, PGD and VPP test points.
This page synthesizes distributor pricing, package-compatible drop-in alternatives sourced from Microchip's own cross-reference tooling, and practical design notes not found in the standalone datasheet.
Alternatives de remplacement direct pour PIC16C662-10/PT — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.
Variantes de cette série
Modèles de la même série directement compatibles avec PIC16C662-10/PT (même facteur de forme et même empreinte) — différant par Program Memory Size, Program Memory Type, Package, Timers, Watchdog Timer.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC16C662-10E/PT
✅ Remplacement direct✓ En stock
$5.65 / unité
Voir la fiche technique →PIC16C662-04I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC16F914-I/PT
✅ Remplacement direct✓ En stock
$2.98 / unité
Voir la fiche technique →PIC16C662-10/PT Valeurs maximales et caractéristiques électriques
| Architecture | 8-bit PIC16 RISC |
| Program Memory Type | OTP EPROM |
| Program Memory Size | 7 KB (8K x 14-bit words) |
| RAM Size | 176 bytes |
| Data EEPROM | Not present (OTP device) |
| Maximum CPU Speed | 20 MHz (10 MHz for -10 suffix) |
| Instruction Cycle | 200 ns at 20 MHz clock |
| Instruction Set Size | 35 single-word instructions |
| I/O Pins | 33 |
| Timers | Timer0, Timer1, Timer2 |
| Analog Comparators | 2 on-chip |
| A/D Converter | None (PIC16C662 has comparators, not ADC) |
| Operating Voltage | 3.0 V to 5.5 V |
| Boîtier | 44-pin TQFP (PT), 10x10 mm |
| Type de montage | Surface Mount |
| Statut RoHS | Compliant (lead-free PT suffix per Microchip) |
| Programming Method | ICSP (In-Circuit Serial Programming), high-voltage VPP |
| Watchdog Timer | Yes, with dedicated on-chip RC oscillator |
| Brown-out Reset (BOR) | Yes |
| Power-on Reset (POR) | Yes |
| Hardware Stack | 8 levels |
Configuration des broches de PIC16C662-10/PT
| Broche 1 | MCLR/VPP/RA5 — Master Clear (active-low reset) / Programming voltage input / PORTA bit 5 |
| Broche 2 | RA0/AN0 — PORTA bit 0 / analog comparator input |
| Broche 3 | RA1/AN1 — PORTA bit 1 / analog comparator input |
| Broche 4 | RA2/AN2 — PORTA bit 2 / analog comparator input |
| Broche 5 | RA3/AN3 — PORTA bit 3 / analog comparator input |
| Broche 6 | RA4 — PORTA bit 4 (open-drain option) |
| Broche 7 | RE0 — PORTE bit 0 |
| Broche 8 | RE1 — PORTE bit 1 |
| Broche 9 | RE2 — PORTE bit 2 |
| Broche 10 | VDD — Positive supply voltage |
| Broche 11 | VSS — Ground reference |
| Broche 12 | OSC1/CLKIN — Oscillator input / external clock input |
| Broche 13 | OSC2/CLKOUT — Oscillator output / clock output |
| Broche 14 | RC0 — PORTC bit 0 |
| Broche 15 | RC1 — PORTC bit 1 |
| Broche 16 | RC2 — PORTC bit 2 |
| Broche 17 | RC3 — PORTC bit 3 |
| Broche 18 | RD0 — PORTD bit 0 |
| Broche 19 | RD1 — PORTD bit 1 |
| Broche 20 | RD2 — PORTD bit 2 |
| Broche 21 | RD3 — PORTD bit 3 |
| Broche 22 | RD4 — PORTD bit 4 |
| Broche 23 | RD5 — PORTD bit 5 |
| Broche 24 | RD6 — PORTD bit 6 |
| Broche 25 | RD7 — PORTD bit 7 |
| Broche 26 | VSS — Ground reference |
| Broche 27 | VDD — Positive supply voltage |
| Broche 28 | RB7/PGD — PORTB bit 7 / ICSP data |
| Broche 29 | RB6/PGC — PORTB bit 6 / ICSP clock |
| Broche 30 | RB5 — PORTB bit 5 |
| Broche 31 | RB4 — PORTB bit 4 |
| Broche 32 | RB3 — PORTB bit 3 |
| Broche 33 | RB2 — PORTB bit 2 |
| Broche 34 | RB1 — PORTB bit 1 |
| Broche 35 | RB0/INT — PORTB bit 0 / external interrupt |
| Broche 36 | VSS — Ground reference |
| Broche 37 | VDD — Positive supply voltage |
| Broche 38 | RC4 — PORTC bit 4 |
| Broche 39 | RC5 — PORTC bit 5 |
| Broche 40 | RC6 — PORTC bit 6 |
| Broche 41 | RC7 — PORTC bit 7 |
| Broche 42 | RA6/OSC2 — PORTA bit 6 / alternate oscillator output (pin function varies by oscillator mode) |
| Broche 43 | RA7/OSC1 — PORTA bit 7 / alternate oscillator input (pin function varies by oscillator mode) |
| Broche 44 | VSS — Ground reference |
Applications typiques
PIC16C662-10/PT convient pour 6 applications: Appliance Control Boards, Industrial Sensor Interfaces, Battery Chargers, LED Lighting Controllers, Automotive Body Electronics, Smart Card and RFID Readers.
Appliance Control Boards
The PIC16C662-10/PT's 33 digital I/O lines and two analog comparators make it well suited to washing-machine, dishwasher and HVAC control boards where discrete sensor inputs and relay/motor outputs dominate. At 5 MIPS throughput the core can scan keypad matrices, drive 7-segment displays and execute state-machine control loops in real time. The 3.0 V to 5.5 V operating range covers typical 5 V appliance rails, while the integrated comparators handle level sensing on water-level probes and door switches without extra op-amps. Place 100 nF decoupling on every VDD pin and route MCLR/VPP to an accessible test pad for ICSP in production.
Recommandé
Industrial Sensor Interfaces
On-board analog comparators let the PIC16C662-10/PT directly threshold 4-20 mA loop signals or thermistor dividers without external analog ICs. The 200 ns instruction cycle supports 1 kHz closed-loop control loops in motor and valve applications, while 33 I/O drive multiple sensor strings and indicator LEDs. Brown-out Reset (BOR) and Watchdog Timer (WDT) protect against supply sag and code runaway common in 24 V industrial bus environments. Use optocouplers on every off-board signal to ride through 1 kV surge pulses per IEC 61000-4-5.
Recommandé
Battery Chargers
The PIC16C662-10/PT's analog comparators can monitor battery voltage through a resistor divider and terminate charge via I/O-controlled MOSFET gates, replacing dedicated charger ASICs in low-cost designs. 33 I/O pins support cell-balancing FETs in multi-cell packs plus LED status indication. The 200 ns instruction cycle ensures tight PWM control at 25 kHz for switch-mode charger topologies. Brown-out Reset prevents deep-discharge damage by gating outputs when VDD drops below the safe threshold. Add a 10 ohm sense resistor for current-mode control and a 10 uF bulk cap on VDD.
Recommandé
LED Lighting Controllers
The PIC16C662-10/PT's 33 I/O lines can drive multiplexed RGB matrix panels, dimming MOSFETs and addressable LED strings in commercial lighting fixtures. Hardware PWM through Timer2 plus the 5 MIPS core supports up to 16-bit PWM resolution at 1 kHz refresh for flicker-free dimming. The internal analog comparator enables ambient-light feedback loops without an external op-amp. Brown-out Reset ensures clean MCU reset during LED inrush events. Route all LED return currents to a star ground to avoid digital noise injection into the analog comparator inputs.
Recommandé
Automotive Body Electronics
The PIC16C662-10/PT serves non-safety body modules such as seat controllers, mirror adjusters and HVAC blend-door actuators where 33 I/O and dual comparators handle Hall sensors and motor H-bridges. The -10E/PT industrial-temperature variant survives -40 C to +125 C underhood environments. Watchdog Timer plus Brown-out Reset provide field reliability demanded by 12 V automotive supply rails with cranking transients. Add TVS diodes on every connector pin and a series ferrite on VDD to clamp load-dump pulses per ISO 7637-2.
Recommandé
Smart Card and RFID Readers
33 I/O lines on the PIC16C662-10/PT support ISO 7816 smart card interfaces, LCD character displays and keypad inputs in cost-sensitive access-control readers. The 200 ns instruction cycle handles ATR (Answer-To-Reset) parsing and T=0/T=1 protocol stacks in firmware. Internal analog comparators detect card insertion via contact-debounce circuits. Place ESD protection diodes on every card-contact pin to survive 8 kV contact discharge per IEC 61000-4-2.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC16C662-10/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC16C662-10E/PT | PIC16C662-04I/PT | PIC16F914-I/PT |
|---|---|---|---|---|
| Package | TQFP-44 (PT) 10x10 mm | TQFP-44 (PT) - same | TQFP-44 (PT) - same | TQFP-44 (PT) - same |
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Program Memory Type | OTP EPROM 7 KB | OTP EPROM 7 KB - same | OTP EPROM 7 KB - same | Flash 7 KB - upgrade |
| Max Clock Speed | 10 MHz (200 ns cycle) | 10 MHz - same | 4 MHz (250 ns cycle) - slower | 20 MHz (200 ns cycle) - faster |
| ADC | None (2 comparators) | None (2 comparators) - same | None (2 comparators) - same | 10-bit, 14 channels |
| I/O Pins | 33 | 33 - same | 33 - same | 33 - same |
| Lifecycle Status | NRND | NRND - same | NRND - same | Active - preferred for new designs |
Principaux différenciateurs
- Extended-temperature OTP variant available in same package (vs PIC16C662-04I/PT)
- Flash-based superset for firmware iteration (vs PIC16F914-I/PT)
- OTP program memory for high-volume production security (vs PIC16C662-10E/PT)
Notes de conception
Place a 10 uF tantalum or aluminum bulk capacitor on each VDD pin pair (pins 10/11, 26/27, 36/37) along with a 100 nF ceramic decoupling cap within 5 mm of the MCU body. The PIC16C662-10/PT draws up to 20 mA active at 20 MHz; undersized decoupling causes POR misfires during motor inrush. Brown-out Reset (BOR) thresholds are user-configurable but default to 4.0 V on 5 V parts - select the lowest threshold that still protects downstream logic.
OTP EPROM cannot be electrically erased: a miswritten PIC16C662-10/PT must be physically discarded. Designers prototyping new firmware should evaluate the flash-based PIC16F914-I/PT in the same TQFP-44 footprint, then port final code to the OTP device once frozen. ICSP requires a high-voltage (typically 13 V) VPP pulse on the MCLR pin - leave a dedicated test pad accessible to the programming fixture rather than tying MCLR directly to VDD.
Route the OSC1/OSC2 crystal traces as short and symmetric as possible, surrounded by a ground guard ring. Place load capacitors (typically 15-33 pF) within 2-3 mm of the OSC pins. Keep digital switching traces (PORTB, PORTD) at least 5 mm away from the analog comparator inputs (RA0-RA3) to minimize coupling that would cause false comparator triggers. Use a single-point ground star tying the MCU ground to the analog ground return.
Informations de conformité
RoHS compliant per Microchip product page; PT suffix designates lead-free finish. AEC-Q100 not qualified - PIC16C662 is industrial/consumer grade only. Halogen-free status not explicitly stated in available data.