73S8004R
Low Cost Smart Card Interface
FUNCTIONAL DIAGRAM
VDD
VDDF_ADJ
NC
VPC
21
18
5
6
6
VPC FAULT
4
DIGITAL POWER SUPPLY
VDD VOLTAGE SUPERVISOR
VOLTAGE REFERENCE
GND
22
19
VDD FAULT
LDO
GND
VCC FAULT
ICC FAULT
REGULATOR
14
GND
VCC
&
VOLTAGE
SUPERVISORS
17
R-C
Int_Clk
CMDVCC
OSC.
DIGITAL
CIRCUITRY
&
20
3
RSTIN
5V/3V
OFF
ICC RESET
BUFFER
FAULT LOGIC
23
16
RST
CLK
1
2
CLKDIV1
CLKDIV2
ICC CLOCK
BUFFER
ISO-7816
15
10
9
SEQUENCER
24
25
XTALIN
PRES
PRES
XTAL
OSC
CLOCK
GENERATION
XTALOUT
7
8
OVER
TEMP
CLKSTOP
CLKLEV
TEMP FAULT
11
13
I/O
26
27
28
I/OUC
AUX1UC
AUX2UC
ICC I/O BUFFERS
AUX1
AUX2
12
Figure 1: 73S8004R Block Diagram
Page 2
© 2002-2003 TDK Semiconductor Corporation
Proprietary and Confidential
Rev 1.1
TERIDIAN [ TERIDIAN SEMICONDUCTOR CORPORATION ]
