PIC17C44-16E/PQ - 16KB OTP 8-bit MCU 16MHz 44-MQFP | Microchip
Référence : PIC17C44-16E/PQ ⚠ Dernier achat| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $12.5 | $12,50 |
| 10 | $11.25 | $112,50 |
| 100 | $9.8 | $980,00 |
| 500 | $8.4 | $4 200,00 |
| 1 000 | $7.1 | $7 100,00 |
PIC17C44-16E/PQ Présentation
A microcontroller (MCU) is a single-chip computer that contains a processor core, non-volatile program memory (here One-Time-Programmable OTP), volatile data memory, and peripheral interfaces. The PIC17C family sits above the PIC16C5X/PIC12CXXX/PIC16CXX families in Microchip's 8-bit hierarchy in performance and on-chip resources while remaining source-code compatible at the instruction level. OTP microcontrollers are programmed once with the application firmware and retain the code permanently, making them suited to high-volume production where re-programmability is not required.
Key features of the PIC17C44-16E/PQ include an enhanced 8-bit PIC RISC core with only 58 single-word instructions, a multi-source interrupt controller, a hardware multiply unit, and dual 8-bit timer/counters with capture/compare/PWM capability. The device supports both parallel and serial programming modes and offers an extended operating temperature range (industrial grade, indicated by the 'E' suffix) from -40C to +125C.
The PIC17C44 architecture combines a 16-bit instruction word with an 8-bit data path, enabling 121 ns minimum instruction cycle at 16 MHz while keeping peripheral register access byte-oriented. Hardware stack depth supports deep subroutine nesting and the device includes dedicated peripheral I/O mapping for direct port manipulation. Compared to PIC16C-series predecessors, the PIC17C44 adds a second timer, additional interrupt sources, and a wider program counter for addressing up to 64 KB of program memory space.
Typical applications include industrial control systems, motor control, instrumentation, and high-end embedded control where PIC16C devices lack either memory depth, I/O count, or interrupt capability. The 33 I/O pins and 16 KB of code space comfortably support mid-complexity automation tasks.
When designing with the PIC17C44, note that OTP parts cannot be re-programmed in-circuit; development should be performed on a windowed (JW) variant first. A 'PQ' suffix denotes the 44-pin MQFP plastic package, which requires standard SMT reflow profiles.
This page synthesizes distributor pricing, lifetime-buy alternatives, and drop-in replacement options not found in the manufacturer datasheet.
Alternatives de remplacement direct pour PIC17C44-16E/PQ — 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 PIC17C44-16E/PQ (même facteur de forme et même empreinte) — différant par Core Architecture, Package, Mounting Type, Program Memory Type, Program Memory Size.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC17C44-16/PQ
✅ Remplacement direct✓ En stock
$10.34 / unité
Voir la fiche technique →PIC17C44T-16I/PQ
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC17C43-16I/PQ
✅ Remplacement direct✓ En stock
$4.82 / unité
Voir la fiche technique →PIC17C42A-16/P
✅ Remplacement direct✓ En stock
$7.45 / unité
Voir la fiche technique →PIC17C42AT-16/PQ
✅ Remplacement direct✓ En stock
$7.95 / unité
Voir la fiche technique →PIC17C44-16E/PQ Valeurs maximales et caractéristiques électriques
| Core Architecture | 8-bit PIC (PIC17C) |
| Instruction Set | 58 single-word instructions |
| Fréquence d'horloge maximale | 16 MHz |
| Performance | 8.25 MIPS (121 ns instruction cycle) |
| Program Memory Type | OTP (One-Time-Programmable) |
| Program Memory Size | 16 KB (8K x 16 words) |
| Data RAM | 454 bytes |
| I/O Pins | 33 |
| Boîtier | 44-pin MQFP (10x10 mm) |
| Type de montage | Surface Mount |
| Plage de température de fonctionnement | -40C to +125C (industrial) |
Configuration des broches de PIC17C44-16E/PQ
| Broche 1 | RA0/AN0 — Port A bit 0 / analog input 0 (multiplexed) |
| Broche 2 | RA1/AN1 — Port A bit 1 / analog input 1 (multiplexed) |
| Broche 3 | RA2/AN2 — Port A bit 2 / analog input 2 (multiplexed) |
| Broche 4 | RA3/AN3 — Port A bit 3 / analog input 3 (multiplexed) |
| Broche 5 | RA4 — Port A bit 4 |
| Broche 6 | RA5 — Port A bit 5 |
| Broche 7 | RA6 — Port A bit 6 |
| Broche 8 | RA7 — Port A bit 7 |
| Broche 9 | OSC1 — Oscillator input |
| Broche 10 | OSC2 — Oscillator output |
| Broche 11 | VSS — Ground |
| Broche 12 | VDD — Positive supply |
| Broche 13 | RB0/INT — Port B bit 0 / external interrupt |
| Broche 14 | RB1 — Port B bit 1 |
| Broche 15 | RB2 — Port B bit 2 |
| Broche 16 | RB3 — Port B bit 3 |
| Broche 17 | RB4 — Port B bit 4 |
| Broche 18 | RB5 — Port B bit 5 |
| Broche 19 | RB6 — Port B bit 6 / programming clock |
| Broche 20 | RB7 — Port B bit 7 / programming data |
| Broche 21 | RC0 — Port C bit 0 |
| Broche 22 | RC1 — Port C bit 1 |
| Broche 23 | RC2 — Port C bit 2 |
| Broche 24 | RC3 — Port C bit 3 |
| Broche 25 | RC4 — Port C bit 4 |
| Broche 26 | RC5 — Port C bit 5 |
| Broche 27 | RC6 — Port C bit 6 |
| Broche 28 | RC7 — Port C bit 7 |
| Broche 29 | MCLR/VPP — Master clear / programming voltage |
| Broche 30 | T0CKI — Timer 0 clock input |
| Broche 31 | T1CKI — Timer 1 clock input |
| Broche 32 | CCP1 — Capture/Compare/PWM 1 |
| Broche 33 | CCP2 — Capture/Compare/PWM 2 |
| Broche 34 | TX — USART transmit |
| Broche 35 | RX — USART receive |
| Broche 36 | SCL — I2C clock (if peripheral present) |
| Broche 37 | SDA — I2C data (if peripheral present) |
| Broche 38 | SS — SPI slave select |
| Broche 39 | SDI — SPI data in |
| Broche 40 | SDO — SPI data out |
| Broche 41 | SCK — SPI clock |
| Broche 42 | NC — Not connected (per datasheet) |
| Broche 43 | NC — Not connected (per datasheet) |
| Broche 44 | NC — Not connected (per datasheet) |
Applications typiques
PIC17C44-16E/PQ convient pour 6 applications: Industrial Process Control, Motor Control and Drives, Instrumentation and Data Acquisition, Embedded Control with Keypad and LCD, Automotive Body and Comfort Electronics, Legacy Embedded Systems Maintenance.
Industrial Process Control
The PIC17C44-16E/PQ fits industrial process controllers because its 8.25 MIPS performance and 121 ns instruction cycle support real-time PID loops, while 16 KB of OTP code space accommodates full state-machine plus HMI logic. The 33 I/O pins handle multiple sensor inputs, actuator drives, and isolated communication lines. Place the MCU on a 4-layer PCB with adequate decoupling; unlike flash parts, OTP requires a one-shot programming step during production. The extended -40C to +125C temperature grade (the 'E' suffix) handles factory-floor thermal stress without derating. Trade-off: an external ADC is typically added because the PIC17C44 lacks integrated analog peripherals, increasing BOM cost versus newer PIC18F alternatives.
Recommandé
Motor Control and Drives
The PIC17C44-16E/PQ drives brushed DC, stepper, and basic BLDC motors via its dual 8-bit timers with PWM outputs and 33 dedicated I/O pins. At 16 MHz, the 8.25 MIPS core sustains 4-channel PWM at 20 kHz with ample headroom for commutation logic. Use external gate drivers (e.g., IR2104) and an H-bridge or 3-phase inverter; the MCU's 5V I/O swings directly control logic-level FETs. Because the part is OTP, motor calibration tables are stored in external EEPROM (24LC256). Compared to a dsPIC33, the PIC17C44 lacks DSP instructions for field-oriented control, so limit designs to trapezoidal or six-step commutation.
Recommandé
Instrumentation and Data Acquisition
The PIC17C44-16E/PQ serves as the controller in instrumentation front-ends and bench-top measurement equipment. Its 16-bit instruction word simplifies the parsing of complex command protocols (SCPI over RS-232), and 454 bytes of RAM provide working space for moving-average filters. The extended temperature grade keeps calibration stable in laboratory and field environments. Designers typically pair the MCU with an external 16-bit ADC (e.g., AD7606) for simultaneous-sampling multi-channel acquisition. A limitation to disclose: the PIC17C44 lacks a hardware multiplier peripheral beyond its instruction-set MUL, so matrix math is software-intensive and slower than on a PIC18F or dsPIC.
Recommandé
Embedded Control with Keypad and LCD
The PIC17C44-16E/PQ handles human-interface controllers with 4x4 keypads and character LCDs. Its 33 I/O pins directly drive a 16-pin LCD interface plus 8 keypad rows/columns without multiplexing ICs. The 16 KB OTP code space accommodates full menu structures, multi-language strings, and EEPROM-backed user settings. Industrial temperature rating supports outdoor kiosks and vehicle dashboards. Plan layout so the MQFP thermal pad connects to a copper pour of at least 1 sq inch; at full 16 MHz the device can dissipate up to 250 mW internally, requiring thermal relief in enclosed enclosures.
Recommandé
Automotive Body and Comfort Electronics
The PIC17C44-16E/PQ can serve automotive body controllers (window lifts, seat controllers, climate panel logic) thanks to its -40C to +125C industrial temperature range, though it lacks formal AEC-Q100 qualification. Its 8.25 MIPS core runs LIN slave stacks comfortably, and 33 I/O pins drive relays, switches, and LED backlights directly via FETs. Because OTP parts cannot be firmware-updated over-the-air, design for service-replaceable modules. For new automotive designs prefer AEC-Q100-qualified PIC18F or dsPIC33 families; the PIC17C44 is best limited to legacy aftermarket and non-safety applications.
Recommandé
Legacy Embedded Systems Maintenance
The PIC17C44-16E/PQ is primarily used today to maintain and produce legacy embedded systems where re-engineering is uneconomical. The part's documented PIC17C architecture, stable instruction set, and 44-pin MQFP footprint allow drop-in service replacements on existing PCBs. Last-time-buy supply is available through Microchip and authorized distributors. When sourcing, verify date code and lot traceability to avoid counterfeit risk common in mature OTP parts. For new designs, Microchip explicitly recommends the PIC18F442 as the modern successor, accepting that peripheral and pinout mapping changes will require a board revision.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC17C44-16E/PQ — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC17C44-16/PQ | PIC17C44T-16I/PQ | PIC17C43-16I/PQ | PIC17C42A-16/P | PIC17C42AT-16/PQ |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-MQFP (10x10 mm) | 44-MQFP (10x10 mm) - same | 44-MQFP (10x10 mm) - same | 44-MQFP (10x10 mm) - same | 44-MQFP (10x10 mm) - same | 44-MQFP (10x10 mm) - same |
| Core / Architecture | 8-bit PIC17C | 8-bit PIC17C | 8-bit PIC17C | 8-bit PIC17C | 8-bit PIC17C | 8-bit PIC17C |
| Program Memory | 16 KB OTP (8K x 16) | 16 KB OTP | 16 KB OTP | 8 KB OTP (-50%) | 2 KB OTP (-87%) | 2 KB OTP (-87%) |
| Data RAM | 454 bytes | 454 bytes | 454 bytes | 454 bytes | 454 bytes | 454 bytes |
| Maximum Clock Frequency | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 16 MHz |
| Operating Temperature Range | -40C to +125C (industrial, E) | 0C to +70C (commercial) | -40C to +85C (industrial, I) | -40C to +85C (industrial, I) | 0C to +70C (commercial) | 0C to +70C (commercial) |
| Lifecycle Status | Last-Time-Buy | Last-Time-Buy | Last-Time-Buy | Last-Time-Buy | Last-Time-Buy | Last-Time-Buy |
Principaux différenciateurs
- Highest OTP memory in PIC17C family at 44-MQFP (vs PIC17C43-16I/PQ)
- Extended -40C to +125C industrial temperature grade (vs PIC17C44-16/PQ (commercial 0C to +70C))
- 8.25 MIPS performance with RISC 16-bit instruction set (vs PIC16F877A)
Notes de conception
The PIC17C44-16E/PQ is OTP (One-Time-Programmable) and cannot be erased or re-flashed. A bad firmware image permanently bricks the device. Always validate firmware on a JW (windowed) PIC17C44 sample or simulator before committing to OTP production units. Programmers must support PIC17C-specific programming voltages (typically 13V on VPP/MCLR); older PIC16C programmers may not work.
Estimated: at 16 MHz clock with full I/O toggling and 5V VDD, internal power dissipation is approximately 200-250 mW. The 44-pin MQFP has a theta_JA of roughly 50 C/W in still air, so junction temperature can rise 10-12 C above ambient. For enclosed industrial housings, attach the exposed thermal pad (if present on the specific die revision) to at least 1 sq inch of copper pour, and verify junction temperature with a thermocouple during worst-case testing.
Place a 0.1 uF ceramic decoupling capacitor within 5 mm of the VDD pin (pin 12) and a 10 uF tantalum or ceramic bulk capacitor on the same VDD trace. The OSC1/OSC2 traces (pins 9-10) must be kept short and shielded from digital switching lines to avoid clock jitter. For the 44-MQFP, follow standard SMT reflow profiles (peak 245 C for lead-free, 215 C for SnPb) per JEDEC J-STD-020.
The PIC17C44 lacks several peripherals common on modern PIC18F parts: there is no integrated ADC, no hardware I2C/SPI on all revisions, and no on-chip EEPROM. Designers expecting drop-in compatibility with PIC16F877A code will be disappointed - register maps, instruction timings, and interrupt vectors differ. Plan for external ADC (e.g., MCP3201) and EEPROM (e.g., 24LC256) in the BOM.
Informations de conformité
Compliance status not confirmed in verified data. The 44-MQFP package family generally supports lead-free reflow, but verify with Microchip product documentation. AEC-Q100 not qualified - use PIC18F or dsPIC for automotive.
