ST8034AT数据手册集成电路（IC）的专用规格书PDF

描述 Description

The ST8034T/ST8034AT/ST8034P/ST8034C devices are complete low-cost analog interfaces for asynchronous and synchronous smartcards operating at a supply voltage of 5 V or 3 V (or even 1.8 V in the case of ST8034P).

The ST8034T/ST8034AT/ST8034P/ST8034C devices can be placed between the card and the microcontroller to provide all supply, protection, detection and control functions, with just a few external components.

特性 Features

• Complete smartcard interface
• ISO 7816 and EMV™ 4.3 payment systems compatible
• One protected half-duplex bidirectional buffered I/O line to the smartcard
• 5 V or 3 V (or 1.8 V in case of ST8034P) selectable smartcard supply voltage (VCC). Ensures controlled VCCrise and fall times and provides smart overload detection with glitch immunity.
• Optional chip select function allows the device interface to be isolated from the host microcontroller signals - allows parallel combination of the card interface devices (ST8034C)
• Card clock generation by integrated crystal oscillator or from external clock source
• Card clock frequency up to 20 MHz, programmable by CLKDIV pin, with synchronous frequency changes
• Optional VCC_SEL input for pin-controlled selection of VCC; 5 V or 3 V or 1.8 V (ST8034P)
• Automatic card activation and deactivation sequences initiated by the microcontroller
• Emergency deactivation sequences initiated by a card supply short-circuit, card take-off, falling VDD, VDDP, or VDD(INTF)or by the interface device overheating
• Voltage supply supervisors
•With a fixed threshold (VDD, VDDP, and VDD(INTF))
•Optionally with an external resistor divider to set the VDD(INTF)threshold (PORADJ pin; ST8034P and ST8034C)
• Multipurpose card status signalOFF
• Non-inverted card reset pin RST driven by the RSTIN input
• Thermal and short-circuit protection of all card contacts
• Card presence detection contacts debounced
• Enhanced card side ESD protection of 8 kV
• Common SO16 3.9 x 9.9 mm body or a space-saving QFN16 3 x 3 mm package
• Temperature range -25 to +85 °C

简介

ST8034AT属于集成电路（IC）的专用。由制造生产的ST8034AT专用该系列产品可提供所需的功能，用以将信息源/信宿连到各种复杂或范围狭窄应用中的传感器、变送器、致动器、传输介质或其他此类端点。例如，汽车安全气囊驱动器、车身控制和信息娱乐总线、自适应电缆均衡器、智能卡等等。