参数资料
型号: 73S8009R-IM/F
厂商: Maxim Integrated Products
文件页数: 6/23页
文件大小: 0K
描述: IC SMART CARD LEVEL SHIFT 20-QFN
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 490
应用: 智能卡读取器,写入器
电源电压: 2.7 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-VFQFN 裸露焊盘
供应商设备封装: 20-QFN(4x4)
包装: 管件
73S8009R Data Sheet
Table 1 describes the pin functions for the device.
Table 1: 73S8009R Pin Definitions
DS_8009R_056
Pin
Name
Pin
(SO28)
Pin
(QFN20)
Type
Description
Card Interface
I/O
25
15
IO
Card I/O: Data signal to/from card. Includes a pull-up
resistor to V CC.
AUX1
24
NA
IO
AUX1: Auxiliary data signal to/from card. Includes a pull-up
resistor to V CC.
AUX2
23
NA
IO
AUX2: Auxiliary data signal to/from card. Includes a pull-up
resistor to V CC.
RST
CLK
21
19
13
11
O
O
Card reset: provides reset signal to card.
Card clock: provides clock signal to card. The rate of this
clock is determined by the external clock frequency
provided on pin CLKIN.
PRES
26
16
I
Card Presence switch: active high indicates card is present.
Should be tied to GND when not used, but includes a high-
impedance pull-down current source.
PRES
16
10
I
Card Presence switch: active low indicates card is present.
Should be tied to VDD when not used, but includes a high-
impedance pull-up current source.
VCC
22
14
PSO
Card power supply – logically controlled by the sequencer,
output of LDO regulator. Requires an external filter
capacitor to GND.
GND
20
NA
GND
Card ground.
Miscellaneous Inputs and Outputs
CLKIN
TEST1
TEST2
NC
11
2
14
3,17,18
5
19
8
NA
I
Clock source for the card clock.
This pin must be tied to GND in typical applications.
This pin must be tied to GND in typical applications.
Non-connected pin.
Power Supply and Ground
VDD
28
17
System interface supply voltage and supply voltage for
internal circuitry.
VPC
15
9
LDO regulator power supply source.
GND
27
12
GND
Ground.
Microcontroller Interface
CS
1
18
I
When CS = 1, the control and signal pins are configured
normally. When CS is set low, CMDVCC% , RSTIN, and
CMDVCC# are latched, IOUC, AUX1UC, and AUX2UC are
set to high-impedance pull-up mode and do not pass data
to or from the smart card. Signals RDY and OFF are
disabled to prevent a low output and the internal pull-up
resistors are disconnected.
OFF
4
20
O
Interrupt signal to the processor. Active low, multi-function
indicating fault conditions and card presence. Open drain
output configuration. It includes an internal 20 kΩ pull -up to
VDD. The pull-up is disabled in PWRDN and CS=0 modes.
6
Rev. 1.3
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