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參數資料
| 型號： | 73S8010C-IL |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 模擬信號調理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO28 |
| 封裝： | SOP-28 |
| 文件頁數： | 26/27頁 |
| 文件大小： | 367K |
| 代理商： | 73S8010C-IL |
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73S8010C
Smart Card Interface
DATA SHEET
Page: 8 of 27
2005 TERIDIAN Semiconductor Corporation
Rev 1.2
OSCILLATOR
The TERIDIAN 73S8010C device has an on-chip oscillator that can generate the smart card clock using an
external crystal, connected between the pins XTALIN and XTALOUT, to set the oscillator frequency. When the
card clock signal is available from another source, it can be connected to the pin XTALIN, and the pin XTALOUT
should be left unconnected.
DC-DC CONVERTER – CARD POWER SUPPLY
An internal DC-DC converter provides the card power supply. This converter is able to provide either 3V or 5V
card voltage from the power supply applied on the VPC pin. Typically, VPC is the same supply as VDD. The
converter is controlled by the digital ISO-7816-3 sequencer. Card voltage selection is carried out by bit 2 of the
control register.
The circuit is an inductive step-up converter/regulator. The external components required are 2 filter capacitors
on the power-supply input VPC (100nF + 10F), an inductor, and an output filter capacitor on the card power-
supply VCC. The circuit performs regulation by activating the step-up operation when VCC is below a set point of
5.0 or 3.0 volts minus a comparator hysteresis voltage and the input supply VPC is less than the set point for VCC.
When VPC is greater than the set point for VCC (VPC = 3.6v, VCC = 3v) the circuit operates as a linear regulator.
Depending on the inductor values, the voltage converter can provide current on VCC as high as 100mA.
The circuit provides over-current protection and limits ICC to 150mA. When an over-current condition is sensed,
the circuit initiates a de-activation sequence from the control logic and reports back to the host controller a fault on
the interrupt output
INT.
Choice of the inductor:
Nominal inductor value is 10
H, rated for 400mA. The inductor is to be connected between pin LIN (pin 5 in the
SO package, pin 2 in the QFN package) and the VPC voltage. Value of the inductor can be optimized to meet
particular configuration (ICC_MAX). The inductor should be located on the PCB as close as possible to the pin LIN
of the IC.
Choice of the VCC capacitor:
Depending on the applications, the requirements in terms of both VCC minimum voltage and transient currents that
the interface must be able to provide to the card are different. The table below shows the recommended
capacitors for each VPC power supply configuration and applicable specification.
Specification Requirement
Application
Specification
Min VCC Voltage allowed
During transient current
Max
transient
current
charge
Capacitor Type
Capacitor Value
EMV 4.0
4.6V
30nA.s
3.3
F
ISO-7816-3
4.5V
20nA.s
X5R/X7R
w/
ESR < 100m
1
F
Table 1: Choice of VCC pin capacitor
相關PDF資料 |
PDF描述 |
|---|---|
| 73S8010C-IMR | SPECIALTY ANALOG CIRCUIT, QCC32 |
| 73S8010C-IL | SPECIALTY ANALOG CIRCUIT, PDSO28 |
| 73S8010C-IM | SPECIALTY ANALOG CIRCUIT, QCC32 |
| 73S8010C-IM | SPECIALTY ANALOG CIRCUIT, QCC32 |
| 73S8010C-ILR | SPECIALTY ANALOG CIRCUIT, PDSO28 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| 73S8010C-IL/F | 功能描述:I2C 接口集成電路 Smart Card Interface ISO7816-3 & EVM4.0 RoHS:否 制造商:NXP Semiconductors 電源電壓-最大:5.5 V 電源電壓-最小:2.3 V 最大工作頻率:400 KHz 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-16 |
| 73S8010C-ILR/F | 功能描述:I2C 接口集成電路 Smart Card Interface ISO7816-3 & EVM4.0 RoHS:否 制造商:NXP Semiconductors 電源電壓-最大:5.5 V 電源電壓-最小:2.3 V 最大工作頻率:400 KHz 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-16 |
| 73S8010C-IM/F | 功能描述:I2C 接口集成電路 Smart Card Interface ISO7816-3 & EVM4.0 RoHS:否 制造商:NXP Semiconductors 電源電壓-最大:5.5 V 電源電壓-最小:2.3 V 最大工作頻率:400 KHz 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-16 |
| 73S8010C-IM/F2 | 功能描述:I2C 接口集成電路 RoHS:否 制造商:NXP Semiconductors 電源電壓-最大:5.5 V 電源電壓-最小:2.3 V 最大工作頻率:400 KHz 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-16 |
| 73S8010C-IMR/F | 功能描述:I2C 接口集成電路 Smart Card Interface ISO7816-3 & EVM4.0 RoHS:否 制造商:NXP Semiconductors 電源電壓-最大:5.5 V 電源電壓-最小:2.3 V 最大工作頻率:400 KHz 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-16 |
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