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ST7SCR Datasheet(PDF) 11 Page - STMicroelectronics

Part # ST7SCR
Description  8-BIT LOW-POWER, FULL-SPEED USB MCU WITH 16K FLASH, 768 RAM, SMARTCARD I/F, TIMER
PDF  101 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7SCR Datasheet(HTML) 11 Page - STMicroelectronics

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ST7SCR
11/101
Figure 6. Smartcard Interface Reference Application - 64-Pin LQFP Package
Note 1: C1, C2, C7 and C8 must be located close
to the chip.
Note 2: Refer to section 6 on page 21 & Section
14.4.3 Crystal Resonator Oscillators.
64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49
48
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46
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17 18 19 20 21 22 23 24
29 30 31 32
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1
2
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CL1
CL2
C4
C5
C6
VDD
L1
C3
LED
C1
VDD
D-
D1
VDD
C2
R
D+
C7
C8
Mandatory values for the external components :
L1 : 10 µH, 2 Ohm
C4 : 4.7 µF,ESR 0.5 Ohm
C3 : 1 nF
Crystal 4.0 MHz, Impedance max100 Ohm
Cl1, Cl2 2)
D1: BAT42 SHOTTKY
C5 : 470 pF
C6 : 100 pF
C2 : 100nF 1)
C1 : 4.7 µF 1)
R : 1.5kOhm
C7 : 100 nF 1)
C8 : 100 nF 1)



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