PIC17C43-16I/PT - 8-bit 16MHz 8KB OTP MCU 44-TQFP | Microchip
MPN: PIC17C43-16I/PT ✗ Tapus ng BuhayPIC17C43-16I/PT Ulas
An MCU (microcontroller) is a single-chip computer containing a CPU core, program memory, data memory, and configurable peripherals. The PIC17C family represents Microchip's first-generation high-performance 8-bit architecture, positioned between baseline PIC16 and enhanced PIC18 families, and was eventually succeeded by the PIC18F series for new designs. Microcontrollers sit within the broader taxonomy of: MCU -> microcontroller -> embedded processor -> semiconductor -> integrated circuit.
Key features include only 58 single-word instructions to learn, a 16-level hardware stack, single-cycle execution for most opcodes (program branches and table reads/writes require two cycles), and a maximum clock input of 33 MHz with a 121 ns instruction cycle at 16 MHz. The PIC17C43 includes multiple counter/timer modules, capture/compare/PWM peripherals, a USART, and 33 digital I/O pins organized across five ports, supporting a wide range of embedded control tasks. The -16 speed grade specifies 16 MHz maximum clock input.
Typical applications include industrial automation controllers, motor control subsystems, sensor interface front-ends, and white-goods / appliance control boards. The wide operating voltage tolerance and robust CMOS EPROM cell make the PIC17C43 suitable for noise-prone factory-floor environments where firmware stability matters more than absolute cost.
Designers migrating new projects should consider the PIC18F4220 (flash-based, recommended by Microchip as the modern successor) for new designs; the PIC17C43-16I/PT remains useful for legacy board repair and long-life-cycle industrial programs where OTP and -40C to +85C industrial temperature grading are still desired.
This page synthesizes distributor inventory, package-identical drop-in alternatives, and design notes not consolidated in the Microchip datasheet, giving repair engineers and sourcing teams a single actionable reference.
Mga alternatibo na pwedeng ilagay na PIC17C43-16I/PT — parehas na package, pin-to-pin na katugmang. Hindi kasama ang mga bahagi ng iba't-ibang package na nangangailangan ng pagpapaayos ng PCB.
Variante sa Seri na ito
Katulad na modelo sa serye na katugma sa pagpasok PIC17C43-16I/PT (parehas na form factor at footprint) — pagkakaiba sa Package, Program Memory Type, Operating Temperature, Maximum Clock Frequency, RAM Size.
PIC17C43-16I/PQ
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC17C43-16/PQ
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC17C43-16I/PQ
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC17C43-33I/PT
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC17C42A-16E/P
✅ Drop-InMagkontak para sa presyo
Tingnan ang Datasheet →PIC17C43-16I/PT Mga Pinakamataas na Rating at Electrical Characteristics
| Manufacturer | Microchip Technology |
| Product Family | PIC 17C |
| Core Architecture | 8-bit RISC PIC |
| Instruction Set Width | 16-bit (single word) |
| Number of Instructions | 58 |
| Program Memory Type | EPROM (OTP) |
| Program Memory Size | 8 KB (4K x 16) |
| Maximum Clock Input | 33 MHz |
| Operating Frequency (this part) | 16 MHz |
| Instruction Cycle | 121 ns (single cycle, except branches/table R/W) |
| Performance | 8.25 MIPS |
| Volte ng Pagbibigay | 5 V nominal |
| I/O Pins | 33 |
| Hardware Stack | 16-level |
| Packhaging | 44-TQFP (PT) |
| Uri ng Pagpapasok | Surface Mount |
| Temperature Grade | Industrial (-40C to +85C) |
| Lead-Free / RoHS | Refer to Microchip product page |
Pin Configuration ng PIC17C43-16I/PT
| Pin 1 | RA0/AN0 — PORTA bit 0 / analog input 0 |
| Pin 2 | RA1/AN1 — PORTA bit 1 / analog input 1 |
| Pin 3 | RA2/AN2 — PORTA bit 2 / analog input 2 |
| Pin 4 | RA3/AN3 — PORTA bit 3 / analog input 3 |
| Pin 5 | RA4/AN4 — PORTA bit 4 / analog input 4 |
| Pin 6 | RA5/AN5 — PORTA bit 5 / analog input 5 |
| Pin 7 | RA6/OSC2 — PORTA bit 6 / crystal oscillator output |
| Pin 8 | RA7/OSC1 — PORTA bit 7 / crystal oscillator input |
| Pin 9 | RB0/INT — PORTB bit 0 / external interrupt |
| Pin 10 | RB1 — PORTB bit 1 |
| Pin 11 | RB2 — PORTB bit 2 |
| Pin 12 | RB3 — PORTB bit 3 |
| Pin 13 | RB4 — PORTB bit 4 |
| Pin 14 | RB5 — PORTB bit 5 |
| Pin 15 | RB6 — PORTB bit 6 |
| Pin 16 | RB7 — PORTB bit 7 |
| Pin 17 | RC0 — PORTC bit 0 |
| Pin 18 | RC1 — PORTC bit 1 |
| Pin 19 | RC2 — PORTC bit 2 |
| Pin 20 | RC3 — PORTC bit 3 |
| Pin 21 | RC4 — PORTC bit 4 |
| Pin 22 | RC5 — PORTC bit 5 |
| Pin 23 | RC6 — PORTC bit 6 |
| Pin 24 | RC7 — PORTC bit 7 |
| Pin 25 | RD0 — PORTD bit 0 |
| Pin 26 | RD1 — PORTD bit 1 |
| Pin 27 | RD2 — PORTD bit 2 |
| Pin 28 | RD3 — PORTD bit 3 |
| Pin 29 | RD4 — PORTD bit 4 |
| Pin 30 | RD5 — PORTD bit 5 |
| Pin 31 | RD6 — PORTD bit 6 |
| Pin 32 | RD7 — PORTD bit 7 |
| Pin 33 | RE0 — PORTE bit 0 |
| Pin 34 | RE1 — PORTE bit 1 |
| Pin 35 | RE2 — PORTE bit 2 |
| Pin 36 | MCLR/VPP — Master clear reset / programming voltage |
| Pin 37 | VDD — Positive supply (5V) |
| Pin 38 | VSS — Ground reference |
| Pin 39 | VDD — Positive supply (5V) |
| Pin 40 | VSS — Ground reference |
| Pin 41 | T0CKI — Timer 0 clock input |
| Pin 42 | CCP1 — Capture/Compare/PWM 1 |
| Pin 43 | CCP2 — Capture/Compare/PWM 2 |
| Pin 44 | NC — Not connected (per datasheet) |
Tipikal na mga Gamit
PIC17C43-16I/PT ay nararapat para sa 6 aplikasyons: Industrial Automation Controllers, Motor Control Subsystems, White-Goods and Appliance Control, Sensor Interface Front-Ends, Automotive Aftermarket Modules, Legacy Board Repair and Long-Life Production.
Industrial Automation Controllers
The PIC17C43-16I/PT fits PLC and machine controller roles because its 8.25 MIPS throughput and 121 ns deterministic single-cycle execution handle closed-loop control loops within tight scan budgets. Its 8 KB OTP program memory accommodates ladder-logic translation tables and timing schedules, while 33 I/O pins drive relays, sensors, and HMI displays directly without external expanders. The industrial -40C to +85C temperature grade survives factory-floor thermal cycling. In retrofitting legacy equipment, engineers drop the PT package onto existing TQFP-44 PCB pads to extend equipment service life without respinning control boards.
Inirekomenda
Motor Control Subsystems
Brush-DC and stepper motor control firmware fits comfortably in the PIC17C43-16I/PT's 8 KB OTP memory. The integrated capture/compare/PWM modules generate precise switching waveforms, while the 121 ns instruction cycle produces deterministic PWM update rates suitable for trapezoidal commutation and PI speed loops. With 33 digital I/O pins, the MCU directly drives H-bridge gate signals, Hall-sensor inputs, and quadrature encoder feedback. Designers benefit from the OTP security: production firmware cannot be reverse-read from the device after programming, protecting proprietary control algorithms in OEM motor drives.
Inirekomenda
White-Goods and Appliance Control
Washing machines, dishwashers, microwave ovens, and HVAC thermostat controllers were the original application sweet spot for PIC17C43 when it launched. Its 8-bit RISC core, low power consumption, and OTP-coded firmware deliver cost-effective embedded intelligence for cycle timers, sensor fusion, and user-interface button matrices. The 44-pin TQFP package sits cleanly on compact appliance PCBs, and the industrial temperature grade handles the thermal stress of compressor-adjacent placement. For new appliance designs, PIC18F-series flash parts are now preferred, but PIC17C43-16I/PT remains in service boards produced in long-life programs.
Inirekomenda
Sensor Interface Front-Ends
Multi-channel sensor aggregation boards leverage the PIC17C43-16I/PT's 33 I/O pins to scan temperature, pressure, and flow sensors in industrial measurement systems. The MCU's RISC architecture executes averaging and linearization routines within tight sample windows, while the 8 KB OTP stores calibration coefficients unique to each sensor batch. A built-in USART interfaces with upstream PLCs or display modules. The 16 MHz clock rate is sufficient for 10 kHz sampling loops on 4 to 8 sensor channels, and the industrial temperature grade is well-matched to outdoor and process-plant environments.
Inirekomenda
Automotive Aftermarket Modules
Although the PIC17C43 is not automotive-qualified, the -16I/PT industrial temperature grade is acceptable for under-dash aftermarket accessories like alarm modules, gauge drivers, and central-locking controllers. Its OTP program memory secures proprietary rolling-code algorithms, and the 16 MHz clock generates reliable timing for radio-frequency encoder/decoder pairs. The 44-pin TQFP package integrates cleanly into compact modules, and the EPROM cell's long-term data retention (over 10 years per Microchip datasheet) suits long-life automotive aftermarket SKUs. Use PIC17C42A-16E/P for higher-temperature engine-bay applications.
Inirekomenda
Legacy Board Repair and Long-Life Production
Many industrial OEMs continue to ship products with 15 to 20 year service lifecycles, and the PIC17C43-16I/PT remains the only supported MCU on those legacy boards. Repair depots and contract manufacturers stock PIC17C43-16I/PT for warranty replacement and field service. The OTP memory's stability over decades of storage suits low-volume spare-parts channels. When a board fails, swapping a fresh PIC17C43-16I/PT onto the existing TQFP-44 footprint returns the assembly to service without requiring firmware porting to a different MCU family.
Inirekomenda
Buod ng mga Inirekomendang Produkto
Impormasyon ng Talumpati sa Engineering for PIC17C43-16I/PT — ikabit, gabay sa disenyo, at impormasyon ng pagsunod sa kautusan.
Paunawang Hanapin
Ikabit sa Mga Alternatibo
| Parametro | Ito ang Producto | PIC17C43-16I/PQ | PIC17C43-16/PQ | PIC17C43-16I/P | PIC17C43-33I/PT | PIC17C42A-16E/P |
|---|---|---|---|---|---|---|
| Brand | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology | Microchip Technology |
| Package | TQFP-44 (PT) | MQFP-44 (PQ) - same footprint family | MQFP-44 (PQ) - same footprint family | PDIP-40 (P) | TQFP-44 (PT) - same | PDIP-40 (P) |
| Max Clock Input | 16 MHz | 16 MHz | 16 MHz | 16 MHz | 33 MHz | 16 MHz |
| Program Memory | 8 KB OTP | 8 KB OTP | 8 KB OTP | 8 KB OTP | 8 KB OTP | Reduced OTP map |
| Temperature Grade | Industrial -40C to +85C | Industrial -40C to +85C | Commercial 0C to +70C | Industrial -40C to +85C | Industrial -40C to +85C | Extended -40C to +125C |
| Instruction Cycle | 121 ns at 16 MHz | 121 ns at 16 MHz | 121 ns at 16 MHz | 121 ns at 16 MHz | 121 ns at 33 MHz | 121 ns at 16 MHz |
| I/O Pins | 33 | 33 | 33 | 33 (PDIP-40 exposed) | 33 | 33 |
| Lifecycle Status | NRND | NRND | NRND | NRND | NRND | NRND |
Pangunahing mga Pagkakaiba
- Industrial temperature grade on TQFP-44 (kumpara saPIC17C43-16/PQ)
- Speed upgrade available without layout change (kumpara saPIC17C43-33I/PT)
- Through-hole option for prototyping (kumpara saPIC17C43-16I/P)
Talaan ng Disenyo
PIC17C43-16I/PT operates from a single 5V nominal supply on the VDD pins (37 and 39), with VSS returns on pins 38 and 40. Decouple each VDD/VSS pair with a 100 nF ceramic capacitor placed within 5 mm of the package pin, and add a bulk 10 uF tantalum or aluminum polymer capacitor near the regulator output. For noisy industrial environments, place a ferrite bead in series with VDD to suppress motor-drive transients coupling into the MCU supply rail.
Lay out the TQFP-44 land pattern to JEDEC MS-026 variation ABD with 0.8 mm pitch and 0.45 mm lead width. Provide continuous ground planes under the MCU and keep traces on ports A through E short to minimize capacitive loading, especially on oscillator pins RA6/OSC2 and RA7/OSC1. Route the MCLR/VPP pin (36) directly to a dedicated reset supervisor or pull-up resistor; never leave it floating, as spurious resets will result.
OTP program memory cannot be erased or rewritten once programmed - prototype all firmware on the windowed ceramic PIC17C43/JW variant before committing to production PIC17C43-16I/PT units. The 'I' suffix denotes industrial temperature range (-40C to +85C); do not substitute a PIC17C43-16/PT (commercial 0C to +70C) into products deployed outside climate-controlled environments, or the EPROM data retention may be compromised at temperature extremes per the Microchip datasheet.
Impormasyon ng Pagsunod sa Kautusan
Compliance values not explicitly listed in verified distributor data; refer to Microchip PIC17C43 product page for current RoHS/REACH declarations. Part is not AEC-Q100 qualified.