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ST7GEME4 датащи(PDF) 19 Page - STMicroelectronics

номер детали ST7GEME4
подробное описание детали  Full-speed USB MCU with smartcard firmware and EMV/non-EMV interface
PDF  28 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7GEME4 датащи(HTML) 19 Page - STMicroelectronics

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ST7GEME4
Electrical characteristics
19/28
Figure 6.
Typical application with a crystal resonator
4.5
Memory characteristics
Subject to general operating conditions for VDD, fOSC, and TA unless otherwise specified.
4.6
Smartcard supply supervisor electrical characteristics
Table 18 characteristics are measured at TA = 0 to +70
oC, 4.0 V < V
DD - VSS < 5.5 V unless
otherwise specified.
OSCOUT
OSCIN
fOSC
CL1
CL2
i2
RF
ST7XXX
RESONATOR
WHEN RESONATOR WITH
INTEGRATED CAPACITORS
Table 17.
RAM and hardware registers
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
VRM
Data retention mode(1)
1.
Minimum VDD supply voltage without losing data stored in RAM (in Halt mode or under Reset) or in
hardware registers (only in Halt mode). Not tested in production.
Halt mode (or Reset)
2
V
Table 18.
Smartcard supply supervisor characteristics
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
5 V regulator output (for IEC 7816-3 Class A Cards)
VCRDVCC
SmartCard power supply
voltage
4.6
5.00
5.4
V
ISC
SmartCard supply current
55
mA
IOVDET
Current overload detection
120(1)
mA
tIDET
Detection time on current
overload
170(1)
1400(1)
µs
tOFF
VCRDVCC turn-off time
CLOADmax ≤ 4.7µF
750
µs
tON
VCRDVCC turn-on time
CLOADmax ≤ 4.7µF
150
500
µs
VCRDVCC
VCARD above minimum supply
voltage
4.52(1)
4.76(1)
V
IVDD
VDD supply current
(2)
100
mA



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