PIC17C44-16E/PT - 8-bit 16MHz 16KB OTP MCU 44-TQFP | Microchip
Référence : PIC17C44-16E/PT ✗ Fin de vie| Qté | Prix unitaire | Total |
|---|---|---|
| 1 | $18.5 | $18,50 |
| 10 | $16.2 | $162,00 |
| 100 | $13.85 | $1 385,00 |
| 500 | $11.95 | $5 975,00 |
| 1 000 | $10.4 | $10 400,00 |
PIC17C44-16E/PT Présentation
An 8-bit microcontroller (MCU) is a single-chip computer built around an 8-bit data path, integrating a CPU core, program memory (ROM/Flash/OTP), data RAM, and peripherals such as timers, communication ports, and I/O pins. The PIC17C family sits within Microchip's PIC microcontroller hierarchy as a high-performance tier above the baseline PIC16C/PIC12C families, sharing upward code compatibility while adding a wider instruction set (58 single-word instructions), hardware multiply, and a more capable interrupt structure. MCUs belong to the broader semiconductor hierarchy: microcontroller -> embedded processor -> integrated circuit -> semiconductor.
Key features include the PIC RISC architecture with single-cycle instruction execution (except branches), a hardware multiplier, multiple timer/counter modules, synchronous/asynchronous serial port (USART), and a priority interrupt controller. The OTP program memory allows one-time programmable firmware storage suited to mature, production-locked designs.
Architecturally, the PIC17C44 uses a Harvard-style memory layout with separate program and data buses, allowing simultaneous instruction fetch and data access. The 16-bit instruction word (8K x 16) yields compact, deterministic code, while the 8-bit data path keeps register and ALU operations efficient for control-oriented tasks. Brown-out reset, watchdog timer, and power-saving SLEEP mode enhance field robustness.
Typical applications include industrial control systems, embedded instrumentation, motor control front-ends, sensor interfacing, and legacy OEM products whose firmware has been finalized. The extended temperature grade makes the 'E' variant suitable for outdoor, automotive under-hood, and factory-floor deployments where commercial-grade parts would fail.
When designing with this part, note that OTP memory cannot be reprogrammed in-circuit; an ICD (In-Circuit Debugger) socket or a flash-based PIC17C/18F equivalent should be used for development. Confirm supply longevity: the Microchip product page recommends the PIC18F442 as a modern alternative. This page synthesizes current distributor pricing, drop-in compatible alternatives, and design notes not found in the manufacturer datasheet alone.
Alternatives de remplacement direct pour PIC17C44-16E/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 PIC17C44-16E/PT (même facteur de forme et même empreinte) — différant par Package, Program Memory Size, Maximum Clock Frequency, Core Architecture, Program Memory Type.
Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :
PIC17C44-16I/PT
✅ Remplacement direct✓ En stock
$4.65 / unité
Voir la fiche technique →PIC17C44-16/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC17C44-25I/PT
✅ Remplacement direct📋 Alternative de référence (hors catalogue)
PIC17C44-33I/PT
✅ Remplacement direct✓ En stock
$13.9 / unité
Voir la fiche technique →PIC17C44-16E/PT Valeurs maximales et caractéristiques électriques
| Core Architecture | PIC 8-bit RISC |
| Family | PIC17C |
| Program Memory Type | OTP (One-Time Programmable) |
| Program Memory Size | 16 KB (8K x 16) |
| RAM Size | 454 bytes |
| Maximum CPU Frequency | 16 MHz |
| Performance | 8.25 MIPS (121 ns instruction cycle) |
| Instruction Set | 58 single-word instructions |
| Température de fonctionnement | -40C to +125C (extended industrial, 'E' suffix) |
| Boîtier | 44-TQFP (PT), 10x10 mm |
| Nombre de broches | 44 |
| Type de montage | Surface Mount |
| Connectivity | USART (sync/async serial port) |
| Hardware Multiplier | Yes (8 x 8 -> 16-bit single-cycle) |
| Interrupt Controller | Priority interrupt structure |
| Brown-out Reset | Yes |
| Watchdog Timer | Yes |
| Power-Saving Mode | SLEEP mode |
Configuration des broches de PIC17C44-16E/PT
| Broche 1 | RA0/AN0 — Port A bit 0 / Analog input 0 |
| Broche 2 | RA1/AN1 — Port A bit 1 / Analog input 1 |
| Broche 3 | RA2/AN2 — Port A bit 2 / Analog input 2 |
| Broche 4 | RA3/AN3 — Port A bit 3 / Analog input 3 |
| Broche 5 | RA4/T0CKI — Port A bit 4 / Timer 0 clock input |
| Broche 6 | RA5/SS — Port A bit 5 / SPI slave select |
| Broche 7 | OSC1/CLKIN — Crystal oscillator input / external clock in |
| Broche 8 | OSC2/CLKOUT — Crystal oscillator output / clock out |
| Broche 9 | RC0 — Port C bit 0 |
| Broche 10 | RC1 — Port C bit 1 |
| Broche 11 | RC2 — Port C bit 2 |
| Broche 12 | RC3 — Port C bit 3 |
| Broche 13 | RC4 — Port C bit 4 |
| Broche 14 | RC5 — Port C bit 5 |
| Broche 15 | RC6 — Port C bit 6 |
| Broche 16 | RC7 — Port C bit 7 |
| Broche 17 | VSS — Ground reference |
| Broche 18 | VDD — Positive supply voltage |
| Broche 19 | RB0/INT — Port B bit 0 / External interrupt |
| Broche 20 | RB1 — Port B bit 1 |
| Broche 21 | RB2 — Port B bit 2 |
| Broche 22 | RB3 — Port B bit 3 |
| Broche 23 | RB4 — Port B bit 4 |
| Broche 24 | RB5 — Port B bit 5 |
| Broche 25 | RB6 — Port B bit 6 |
| Broche 26 | RB7 — Port B bit 7 |
| Broche 27 | RD0 — Port D bit 0 |
| Broche 28 | RD1 — Port D bit 1 |
| Broche 29 | RD2 — Port D bit 2 |
| Broche 30 | RD3 — Port D bit 3 |
| Broche 31 | RD4 — Port D bit 4 |
| Broche 32 | RD5 — Port D bit 5 |
| Broche 33 | RD6 — Port D bit 6 |
| Broche 34 | RD7 — Port D bit 7 |
| Broche 35 | RE0 — Port E bit 0 |
| Broche 36 | RE1 — Port E bit 1 |
| Broche 37 | RE2 — Port E bit 2 |
| Broche 38 | AVDD — Analog positive supply |
| Broche 39 | AVSS — Analog ground |
| Broche 40 | MCLR/VPP — Master clear / programming voltage |
| Broche 41 | TX/CK — USART transmit / clock line |
| Broche 42 | RX/DT — USART receive / data line |
| Broche 43 | NC — Not connected (per datasheet) |
| Broche 44 | NC — Not connected (per datasheet) |
Applications typiques
PIC17C44-16E/PT convient pour 6 applications: Industrial Control Systems, Automotive Under-Hood Modules, Embedded Instrumentation, Motor Control Front-End, Sensor Interfacing Hubs, Legacy OEM Replacement Boards.
Industrial Control Systems
The PIC17C44-16E/PT's 16 KB OTP program memory, 454-byte RAM, and 8.25 MIPS throughput make it well-suited to industrial control PLCs and embedded controllers driving relays, solenoids, and indicator panels. The 'E' extended temperature grade of -40C to +125C handles factory-floor ambient swings and unheated enclosures without derating. Hardware USART interfaces to RS-485/RS-232 transceiver ICs for Modbus or proprietary fieldbus links. The PIC17C44's hardware 8x8 multiplier accelerates PID loop math; brown-out reset and watchdog timer survive noisy industrial power rails.
Recommandé
Automotive Under-Hood Modules
The PIC17C44-16E/PT's extended -40C to +125C operating range and CMOS RISC core suit under-hood automotive subsystems such as HVAC flap controllers, mirror adjusters, and sensor signal-conditioning front-ends. The 16 MHz clock delivers deterministic 121 ns instruction timing for sensor sampling loops. OTP program memory locks firmware against unauthorized modification in production vehicles. Pin-compatible same-family parts (PIC17C44-16I/PT, -25I/PT) allow reuse of the same PCB across temperature/speed grades. Note: this part predates AEC-Q100; new designs should consider PIC18F or dsPIC33EP automotive-qualified parts.
Recommandé
Embedded Instrumentation
The PIC17C44-16E/PT's 58-instruction RISC core and 16 KB OTP support bench-top instruments such as multimeters, calibrators, and process calibrators where firmware is finalized and locked at production. Its hardware USART interfaces to external ADC front-ends or Bluetooth/wired telemetry modules. The 454-byte RAM is sufficient for measurement buffering and LCD menu state machines. Brown-out reset preserves calibration data across power glitches. The 44-TQFP package is hand-solderable for low-volume test equipment production, and the extended temperature grade supports laboratory and field-deployable instruments.
Recommandé
Motor Control Front-End
The PIC17C44-16E/PT's hardware 8x8 multiplier, multiple timers, and 16 MHz throughput enable BLDC and stepper motor control front-ends generating PWM commutation tables and reading Hall-effect or quadrature encoder feedback. Its deterministic instruction timing simplifies the implementation of field-oriented control (FOC) loops. The 'E' temperature grade supports motor housing environments. Pairing with external gate drivers (e.g., IR2104, MCP14E4) and current-sense amplifiers creates a complete motor drive. The OTP memory locks proprietary motor calibration tables against field duplication.
Recommandé
Sensor Interfacing Hubs
The PIC17C44-16E/PT's multiple timer/counter modules and USART make it suitable as a sensor hub aggregating temperature, pressure, and flow sensors over SPI, I2C (via bit-bang), or analog channels. The 16 KB OTP accommodates sensor linearization tables and communication protocol stacks. The hardware multiplier accelerates compensation calculations (e.g., thermocouple cold-junction compensation). Extended temperature grade supports outdoor sensor stations. Brown-out reset and watchdog timer survive unstable remote-site power.
Recommandé
Legacy OEM Replacement Boards
The PIC17C44-16E/PT is frequently specified in legacy OEM equipment whose firmware has been finalized, and where the only practical repair path is a like-for-like part replacement. As an obsolete Microchip part, it is sourced from authorized and independent distributors for field-service board swaps. Its 44-TQFP package matches the original PCB land pattern, allowing direct solder reflow without board rework. Same-family drop-in variants (PIC17C44-16I/PT, -25I/PT) provide alternatives when the exact -16E grade is out of stock. Engineers should qualify any independent-distributor source for date code and traceability.
Recommandé
Récapitulatif des produits recommandés
Données de référence d'ingénierie pour PIC17C44-16E/PT — comparaison, recommandations de conception et informations de conformité.
Guide de sélection
Comparaison avec les alternatives
| Paramètre | Ce produit | PIC17C44-16I/PT | PIC17C44-16/PT | PIC17C44-25I/PT | PIC17C44-33I/PT |
|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | 44-TQFP (PT) | 44-TQFP (PT) - same | 44-TQFP (PT) - same | 44-TQFP (PT) - same | 44-TQFP (PT) - same |
| Max CPU Frequency | 16 MHz | 16 MHz | 16 MHz | 25 MHz | 33 MHz |
| Program Memory | 16 KB OTP (8K x 16) | 16 KB OTP (8K x 16) | 16 KB OTP (8K x 16) | 16 KB OTP (8K x 16) | 16 KB OTP (8K x 16) |
| RAM Size | 454 bytes | 454 bytes | 454 bytes | 454 bytes | 454 bytes |
| Operating Temperature | -40C to +125C (E grade) | -40C to +85C (I grade) | 0C to +70C (commercial) | -40C to +85C (I grade) | -40C to +85C (I grade) |
| Performance | 8.25 MIPS (121 ns/cycle) | 8.25 MIPS | 8.25 MIPS | 12.5 MIPS | 16.5 MIPS |
| Pin-to-Pin Compatible | Reference | Yes (drop-in) | Yes (drop-in) | Yes (drop-in) | Yes (drop-in) |
| Lifecycle Status | Obsolete | Obsolete | Obsolete | Obsolete | Obsolete |
Principaux différenciateurs
- Extended industrial temperature grade (-40C to +125C) (vs PIC17C44-16I/PT)
- Pin-compatible with same-family higher-speed variants (vs PIC17C44-25I/PT (25 MHz))
- Long-standing second-source availability in 44-TQFP (vs PIC17C44-16/PT (commercial temp))
Notes de conception
The PIC17C44-16E/PT requires a stable VDD within the datasheet-specified range (typically 4.5V to 5.5V for the 'E' extended grade variants). Place a 100 nF ceramic decoupling capacitor as close as possible to the VDD pin (pin 18) and a bulk 10 uF tantalum or aluminum capacitor on the same supply trace. The AVSS/AVDD pins (38, 39) should be tied to VSS/VDD with their own 100 nF decoupling cap if the analog peripherals are used; otherwise AVSS may be tied directly to VSS. Brown-out reset must be enabled in configuration fuses to prevent code execution at marginal voltages.
Keep the crystal or external clock traces (OSC1/OSC2, pins 7 and 8) short and surrounded by a ground pour to minimize EMI susceptibility. Place the MCLR/VPP pin (pin 40) pull-up resistor (typically 10 kohm) close to the pin and add a 100 nF cap to ground for noise immunity. For in-circuit debugging, bring out the PGD/PGC lines to a header; these are not dedicated pins on the PIC17C44 in 44-TQFP, so consult the datasheet's ICD section. All unused I/O pins should be configured as outputs and tied low to minimize current consumption.
Do not assume the PIC17C44-16E/PT can be programmed with modern PICkit programmers; older PIC17C OTP devices often require the PICSTART Plus, PRO MATE II, or specific software (MPLAB IDE v5.x or earlier). The PIC17C family is NOT instruction-set compatible with PIC18F despite both being Microchip 8-bit cores; firmware must be rewritten in assembly or C for migration. Confirm OTP programming voltage (typically 13V on VPP) and timing per the datasheet's programming specification. When sourcing from independent distributors, verify date codes to avoid parts with degraded EPROM charge retention.
Informations de conformité
Obsolete Microchip part. RoHS and lead-free status not stated in current public data; check Microchip product page or specific distributor listing for definitive compliance. Not AEC-Q100 qualified - the PIC17C family predates automotive qualification standards. For AEC-Q100 needs, consider DSPIC33EP64GP504-I/PT or PIC18F automotive-grade variants.