品牌索引
产品分类 > 小信号开关二极管> 瞬态电压抑制器TVS/ESD> 双极管二极管> 调谐二极管> 齐纳(稳压)二极管> 小信号肖特基二极管> 频带转换二极管> 中/高功率管> 射频PIN二极管> Sinterglass二极管> 整流器 > N沟道(N-Channel)> P沟道(P-Channel)> 双N沟道(Dual N-Channel)> 双P沟道(Dual P-Channel)> 双N和P沟道(Dual N and P-Channel)
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产品介绍 73S8023CFEATURES
• Card Interface: Complies with ISO-7816-3, EMV 4.0 A DC-DC Converter provides 3V / 5V to the card from an external power supply input High-efficiency converter: > 80% @ VDD=3.3 V, VCC=5 V and ICC Up to 100 mA supplied to the card = 65 mA ISO-7816-3 Activation / Deactivation sequencer with emergency automated deactivation Protection includes 2 voltage supervisors which detect voltage drops on card VCC and on VDD The Vpower supply DD True over-current detection (150 mA max.) voltage supervisor threshold value can be externally adjusted 2 card detection inputs, 1 for either possible switch configuration Full support of synchronous cards • System Controller Interface: 3 Digital inputs control the card activation / deactivation, card reset and card voltage 3 Digital inputs control the card clock (division rate and card clock source selection) 1 Digital output, interrupt to the system controller, allows the system controller to monitor the card presence and faults 1 Power down digital input (places the 73S8023C in a very low-power mode (card deactivated) 1 Chip select digital input for parallel operation of several 73S8023C ICs. 1 External clock input (STROBE), used for synchronous operation 1 Digital output clock, buffered version of signal on XTALIN Crystal oscillator or host clock (XTALIN), up to 27 MHz • Power Supply: VDD • 6 kV ESD Protection on the card interface 2.7 V to 3.6 V APPLICATIONS • Point of Sales and Transaction Terminals • Payphones • Set-Top-Boxes, DVD / HDD Recorders • Payment card interfaces in portable devices (PDAs, mobile phones…) |
