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ST7GEME4M1 Fiches technique(PDF) 9 Page - STMicroelectronics

No de pièce ST7GEME4M1
Description  Full-speed USB MCU with smartcard firmware and EMV/non-EMV interface
PDF  28 Pages
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7GEME4M1 Fiches technique(HTML) 9 Page - STMicroelectronics

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ST7GEME4
Pin description
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Figure 4.
Smartcard interface reference application - 24-pin SO package
1.
Mandatory values for the external components:
C1 = 4.7 µF; C2 = 100 nF. C1 and C2 must be located close to the chip (refer to Section 4.4.2.).
C3 = 1 nF;
C4 = 4.7 µF ESR 0.5
Ω.
C5 : 470 pF;
C6 : 100 pF;
R : 1.5k
Ω;
L1 : 10 µH, 2
Ω;
Crystal 4.0 MHz; Impedance max100
Ω
D1: BAT42 SHOTTKY.
23
2
GNDA
S
Ground
24
3
GND
S
1
4
CDRVCC
O
CT X
Smartcard supply pin
Table 2.
Pin description (continued)
Pin number
Pin name
Level
Port / Control
Main
function
(after reset)
Alternate function
Input
Output
LED0
DM
DP
USBVcc
OSCIN
OSCOUT
VPP
DIODE
CRDCLK
CRDRST
CRDVCC
PA6
CRDIO
C8
CRDDET
PA0
VDDA
C4
GNDA
PA1
NC
GND
VDD
SELF
VDD
CL1
CL2
C4
C5
C6
VDD
L1
C3
D1
R
LED
C1
C2
VDD
D+
D-



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