Datasheet

73S8023C Data Sheet DS_8023C_019
2 Rev. 1.5
FUNCTIONAL DIAGRAM
Figure 1: 73S8023C Block Diagram
ICC I/O BUFFERS
VDD VOLTAGE SUPERVISOR
VOLTAGE REFERENCE
XTAL
OSC
CLOCK
GENERATION
DIGITAL
CIRCUITRY
&
FAULT LOGIC
V
DD
FAULT
V
CC
FAULT
Int_Clk
VDD VDD
VCC
RST
CLK
PRES
PRES
XTALIN
XTALOUT
CLKDIV1
CLKDIV2
GND
TEMP FAULT
NC
29
30
31
2
6
4
6
7
9
10
11
12
13
15
14
20
19
18
17
26
24
23
22
28
27
ISO-7816-3
SEQUENCER
R-C
OSC.
DC-DC
CONVERTER
ICC RESET
BUFFER
ICC CLOCK
BUFFER
OVER
TEMP
PWRDN
I/O
AUX1
AUX2
IOUC
AUX1UC
AUX2UC
VDDF_ADJ
RSTIN
CMDVCC
5V/3V
OFF
5
GND
1
3
LIN
6
21
GND
I
CC
FAULT
CLKOUT
32
8
CS
CLKSEL
16
STROBE
25