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參數(shù)資料
| 型號： | 73S8024RN-IMR/F |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 23/27頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC SMART CARD INTERFACE 32SOIC |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 系列： | * |
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DS_8024RN_020
73S8024RN Data Sheet
Rev. 2
5
1 Pin Description
CARD INTERFACE
Name
Pin
28SO
Pin
20QFN
Pin
32QFN
Description
I/O
11
5
8
Card I/O: Data signal to/from card. Includes a pull-up
resistor to VCC.
AUX1
13
–
11
AUX1: Auxiliary data signal to/from card. Includes a
pull-up resistor to VCC.
AUX2
12
–
10
AUX2: Auxiliary data signal to/from card. Includes a
pull-up resistor to VCC.
RST
16
8
14
Card reset: provides reset (RST) signal to card.
CLK
15
7
13
Card clock: provides clock signal (CLK) to card. The rate
of this clock is determined by the external crystal
frequency or frequency of the external clock signal applied
on XTALIN and CLKDIV selections.
PRES
10
4
7
Card Presence switch: active high indicates card is
present. Should be tied to GND when not used, but it
Includes a high-impedance pull-down current source.
PRES
9
3
6
Card Presence switch: active low indicates card is
present. Should be tied to VDD when not used, but it
Includes a high-impedance pull-up current source.
VCC
17
9
15
Card power supply – logically controlled by sequencer,
output of LDO regulator. Requires an external filter
capacitor to the card GND.
GND
14
6
12
Card ground.
MISCELLANEOUS INPUTS AND OUTPUTS
Name
Pin
28SO
Pin
20QFN
Pin
32QFN
Description
XTALIN
24
15
23
Crystal oscillator input: can either be connected to crystal
or driven as a source for the card clock.
XTALOUT
25
16
24
Crystal oscillator output: connected to crystal. Left open
if XTALIN is being used as external clock input.
VDDF_ADJ
18
–
17
VDD fault threshold adjustment input: this pin can be used
to adjust the VDDF values (that controls deactivation of the
card). Must be left open if unused.
NC
5
–
2, 9,
16, 25,
32
Non-connected pin.
POWER SUPPLY AND GROUND
Name
Pin
28SO
Pin
20QFN
Pin
32QFN
Description
VDD
21
12
20
System interface supply voltage and supply voltage for
internal circuitry.
VPC
6
2
3
LDO regulator power supply source.
GND
4
1
LDO Regulator ground.
GND
22
13
21
Digital ground.
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| 73S8024RN-20IMR/F | IC SMART CARD INTERFACE 20-QFN |
| VI-27P-IX-S | CONVERTER MOD DC/DC 13.8V 75W |
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