73S8009C

更新时间： 2024-11-15 06:31:43

品牌	Logo	应用领域
TERIDIAN		/
页数	文件大小	规格书
33页	351K
描述
Versatile Power Management and Smart Card Interface IC

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

73S8009C 数据手册

73S8009C

Versatile Power Management

and Smart Card Interface IC

DATA SHEET

January 2010

Simplifying System Integration™

DS_8009C_025

When power is supplied by V_PCor V_BAT, the

73S8009C is controlled by the ON_OFF pin in the

manner of a “push-on/push-off” button action. The

signals OFF_REQ and OFF_ACK provide

handshaking and control of the power “off”

function by the controller. A SPST momentary

switch to ground connected to ON_OFF is all that

is required for power control. Alternatively, the “off”

state can be initiated from the host controller

through OFF_ACK. When the 73S8009C is “off,”

the current is less than 1 µA.

DESCRIPTION

The Teridian 73S8009C is a versatile power

management and single smart card interface

circuit that is ideally suited for smart card reader

products that are battery and/or USB bus-

powered. In addition to its EMV 4.1 and

ISO-7816-3 compliant smart card-to-host interface

circuitry; it provides control, conversion, and

regulation of power for a companion host

processor circuit and power for the smart card.

The 73S8009C can operate from a single 2.7 V to

6.5 V source supply, or a combination of battery

power (4.0 V to 6.5 V) and USB power (4.4 V to

5.5 V).

When power is supplied via the V_BUSpin, the

73S8009C is unconditionally in the “power-on”

state regardless of the action of the ON/OFF

switch or OFF_ACK signal. Power supply current

operating from the V_BUSpower when V_CCis off is

less than 500 µA to conform to USB “SUSPEND”

requirements.

The 73S8009C supports 5 V, 3 V, and 1.8 V smart

cards. The smart card signals for RST, CLK, IO,

and auxiliary signals AUX1 and AUX2 are

APPLICATIONS

•

Handheld PINpad smart card readers for

e-commerce, secure login, e-health, Gov’t ID

and loyalty

level-shifted to the selected V_CCvalue. Although

the host controller is required to handle the

detailed signal timing for activation and de-

activation under normal conditions, the 73S8009C

blocks any spurious signals on CLK, RST and IO

during power-up (as V_CCrises) and power-down.

The 73S8009C contains two handshaking signals

for the controller: OFF indicates that a card is

present, and RDY indicates that V_CCis at an

acceptable value. The 73S8009C will perform

emergency deactivation upon card removal,

voltage faults, or over-current events

•

Point of Sales & Transaction Terminals

General Purpose Smart Card Readers

ADVANTAGES

•

Ideally suited to USB bus-powered

applications

 Ideal for combo bus-powered and/or

self-powered systems

 Automatic battery switchover in bus

powered systems

The power management circuitry of the 73S8009C

allows operation from a wide range of voltages

from multiple sources. V_PCis converted by using

an inductive, step-up power converter to the

intermediate voltage, V_P. V_Pis used by linear

voltage regulators and switches to create the

voltages V_DDand as required, V_CC. V_DDis used by

the 73S8009C and is also made available for the

companion controller circuit or other external

circuits. The two pins, V_BATand V_BUSprovide

inputs from alternate power sources as required.

An internal switch in the 73S8009C acts as a

single-pole, double-throw switch that selects either

V_BATor V_BUSto be connected to V_PC. When the

voltage on V_BUSis zero, V_BATis connected to V_PC.

When voltage is applied to V_BUS, the switch will

select V_BUSas the source for power.

•

Very low-power mode (sub-µA) with

push-button ON/OFF switch input with

de-bounce

•

Provides 3.3 V / 40 mA power to external

circuitry (host processor or peripheral circuits)

The inductor-based DC-DC converter provides

higher current and efficiency than usual

charge-pump capacitor-based converters:

 Ideal for battery-powered applications

Rev. 1.4

12 3 4 5 6 7...33

中文翻译

下载PDF

与73S8009C相关器件

型号	品牌	获取价格	描述	数据表
73S8009C-20IM/F	TERIDIAN	获取价格	Versatile Power Management and Smart Card Interface IC
73S8009C-20IM/F1	MAXIM	获取价格	Power Supply Support Circuit
73S8009C-20IMR/F	TERIDIAN	获取价格	Versatile Power Management and Smart Card Interface IC
73S8009C-20IMR/F1	MAXIM	获取价格	Power Supply Support Circuit
73S8009C-32IM/F	TERIDIAN	获取价格	Versatile Power Management and Smart Card Interface IC
73S8009C-32IMR/F	TERIDIAN	获取价格	Versatile Power Management and Smart Card Interface IC
73S8009CN	TERIDIAN	获取价格	Combo ISO-7816 and USB Universal Smart Card Interface IC
73S8009CN-32IM/F	TERIDIAN	获取价格	Combo ISO-7816 and USB Universal Smart Card Interface IC
73S8009CN-32IM/F1	MAXIM	获取价格	Analog Circuit, 1 Func, 5 X 5 MM, ROHS COMPLIANT, QFN-32
73S8009CN-32IMR/F	TERIDIAN	获取价格	Combo ISO-7816 and USB Universal Smart Card Interface IC

与73S8009C相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

7
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

4
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

30
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

13

产品中心

服务支持

精选活动

关于我们

帮助中心

73S8009C

73S8009C 数据手册

与73S8009C相关器件

与73S8009C相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

73S8009C

73S8009C 数据手册

与73S8009C相关器件

与73S8009C相关文章

您还可以找

您在本页遇到什么问题？