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AN1978 bảng dữ liệu(PDF) 1 Page - STMicroelectronics

tên linh kiện AN1978
Giải thích chi tiết về linh kiện  SMART CARD INTERFACE
PDF  14 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

AN1978 bảng dữ liệu(HTML) 1 Page - STMicroelectronics

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1. INTRODUCTION
The ST8004 is a smart card interface designed to minimize the microprocessor hardware and software
complexity in all the applications that need a smart card, such as Set-Top-Boxes, electronic payments,
pay TV and identification.
The ST8004 is compliant with the NDS requirements. It implements all the blocks and procedures for the
card activation/deactivation as shown in the block diagram of figure 1.
Figure 1: ST8004 internal block diagram
INTERNAL
REFERENCE
SUPPLY
VOLTAGE
SUPERVISOR
STEP-UP CONVERTER
INTERNAL OSCILLATOR
2.5MHz
SEQUENCER
RST BUFFER
VCC
GENERATOR
CLOCK
BUFFER
THERMAL
PROTECTIO
I/O TRANSCEIVER
I/O TRANSCEIVER
I/O TRANSCEIVER
CLOCK
CIRCUITRY
OSCILLATOR
ST8004
VDD
S2
S1
VDDP
100nF
100nF
100nF
28
AUX2UC
I/OUC
CLKDIV2
AUX1UC
XTAL2
XTAL1
5/3V
CLKDIV1
CMDVCC
RSTIN
PVCC
22
27
25
24
19
26
2
23
3
21
6
1
7
5
17
14
15
10
9
4
12
11
13
RST
18
OFF
En5
En3
Vref
VTHSEL
PRES
GND
CLK
AUX2
PRES
I/O
AUX1
8
PGND
20
ALARM
VUP
VCC
En2
En1 CLKUP
CLK
En4
16
CGND
100nF
100nF
En4
June 2004
1/14
AN1978
APPLICATION NOTE
ST8004: SMART CARD INTERFACE


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