AT83C24B-PRRUM

Specialized Overview

The AT83C24B is a smart card reader interface IC designed for EFT/POS terminals and set-top boxes. It supports ISO 7816, EMV2000, GIE-CB, GSM, and WHQL standards with programmable voltage outputs of 5V ±5% at 65 mA (Class A), 3V ±0.2V at 65 mA (Class B), or 1.8V ±0.14V at 40 mA. The device features an integrated high-efficiency step-up converter (80-98%) and operates on a single VCC supply from 3V to 5.5V. It includes a Two-Wire Interface (TWI) allowing up to eight devices on one bus, 8kV+ ESD protection, and low power consumption with 30 µA typical power-down current. The AT83C24B accepts clock inputs from 4 to 48 MHz.

Specialized Feature Summary

• Compliant with major smart card standards including ISO 7816 and EMV2000
• Integrated high-efficiency DC/DC step-up converter for power management
• Versatile TWI host interface supporting multi-device addressing
• Advanced protection system with short circuit limitation and ESD resistance

Specialized Applications

• EFT/POS terminals
• Set-top boxes
• Smart card reader/writer applications

Specialized Procurement Notes

Verify the specific suffix against official Microchip documentation to confirm package type and temperature range. Ensure the ordering code matches the required industrial temperature specifications and physical footprint before procurement.

Specialized Selection Notes

Select this component for applications requiring robust smart card interfacing with minimal external components. Consider the AT83C24NDS variant if NDS Video-Guard conditional access software compatibility is mandatory, noting its stricter clock and capacitor requirements.

Specialized Part Context

This part belongs to the AT83C24 family of smart card reader interfaces manufactured by Microchip Technology. It serves as a bridge between host microcontrollers and smart cards, managing power and data protocols in portable and fixed payment systems.

Specialized Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.