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ST7GEME4 Datasheet(PDF) 2 Page - STMicroelectronics

Part # ST7GEME4
Description  Full-speed USB MCU with smartcard firmware and EMV/non-EMV interface
PDF  28 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7GEME4 Datasheet(HTML) 2 Page - STMicroelectronics

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Contents
ST7GEME4
2/28
Contents
1
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
3
ST7GEME4 implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.1
Functionality . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.2
Smartcard interface features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
3.3
EMV versus PC/SC-ISO mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1
Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.2
Recommended operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.3
Supply and reset characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.4
Clock and timing characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.4.1
General timings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
4.4.2
Crystal resonator oscillators . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
4.5
Memory characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
4.6
Smartcard supply supervisor electrical characteristics . . . . . . . . . . . . . . 19
4.7
EMC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
4.7.1
Functional EMS (electromagnetic susceptibility) . . . . . . . . . . . . . . . . . . 21
4.7.2
Electromagnetic interference (EMI) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
4.7.3
Absolute maximum ratings (electrical sensitivity) . . . . . . . . . . . . . . . . . 23
4.8
Communication interface characteristics . . . . . . . . . . . . . . . . . . . . . . . . . 24
5
Package characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
5.1
Package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
6
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27



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