PIC18C442/JW
Microchip Technology
PIC18C442/JW
Microchip Technology
IC MCU 8B 16KB EPROM/UV 40CERDIP
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Product details
The PIC18C442/JW from Microchip Technology revolutionizes Embedded - Microcontrollers for medical electronics, combining ultra-low noise performance with stringent safety certifications for life-critical applications.The PIC architecture implements dual-core lockstep with cycle-accurate comparison, detecting faults within 10ns to meet IEC 62304 Class C requirements.A 8-Bit processing width enables single-cycle execution of complex DSP filters for real-time biosignal processing in patient monitoring equipment.Operating at 40MHz with <10 V supply noise, the microcontroller maintains analog signal integrity for precision ECG front-ends with <0.5 Vp-p input-referred noise.The I²C, SPI, UART/USART interfaces incorporate medical-grade isolation up to 5kVrms, enabling direct connection to patient-connected sensors without external isolation barriers.Brown-out Detect/Reset, LVD, POR, PWM, WDT include medical-specific features like lead-off detection and right-leg drive amplifiers, reducing external component count in diagnostic equipment.With 33 channels supporting <1nA leakage current, the device can interface directly with high-impedance biopotential sensors without buffering.16KB (8K x 16) accommodates FDA-approved algorithm implementations with full traceability and version control for regulatory compliance.The EPROM, UV implementation features hardware-enforced read-only regions for critical code segments, preventing unauthorized modifications.512 x 8 of ECC-protected memory prevents silent data corruption in drug delivery systems where single-bit errors could have life-threatening consequences.The 4.2V ~ 5.5V range supports operation from medical-grade power supplies with <10 A patient leakage current in BF-rated applications.Precision A/D 8x10b achieve 20-bit effective resolution through oversampling and chopper stabilization, enabling direct digitization of microvolt-level biosignals.The External design maintains <1ppm frequency stability for accurate timing of therapeutic delivery systems where dosing accuracy is critical.Rated for 0°C ~ 70°C (TA), the device operates reliably in sterilization cycles and extreme clinical environments.Through Hole packaging uses biocompatible molding compounds that outgas <1 g/cm in vacuum environments, suitable for implantable applications.The 40-CDIP (0.600", 15.24mm) Window format provides <1pF pin-to-pin capacitance, preventing signal crosstalk in high-density medical imaging front-end electronics.Available in 40-Cerdip, the microcontroller is manufactured in ISO 13485-certified facilities with full device history tracking.
Product Attributes
- Product Status: Obsolete
- Core Processor: PIC
- Core Size: 8-Bit
- Speed: 40MHz
- Connectivity: I²C, SPI, UART/USART
- Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
- Number of I/O: 33
- Program Memory Size: 16KB (8K x 16)
- Program Memory Type: EPROM, UV
- EEPROM Size: -
- RAM Size: 512 x 8
- Voltage - Supply (Vcc/Vdd): 4.2V ~ 5.5V
- Data Converters: A/D 8x10b
- Oscillator Type: External
- Operating Temperature: 0°C ~ 70°C (TA)
- Mounting Type: Through Hole
- Package / Case: 40-CDIP (0.600", 15.24mm) Window
- Supplier Device Package: 40-Cerdip
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