73S1209F Data Sheet
DS_1209F_004
116
Rev.
1.2
125ns
DELAY
IO
PIN
VCC
STRONG
PFET
STRONG
NFET
RL=11K
From
circuit
CM
O
S
To
circuit
ESD
ESD
Figure 38: Smart Card I/O Circuit
PIN
TT
L
To
circuit
VERY
WEAK
NFET
Pull-down
Enable
ESD
ESD
VDD
Figure 39: PRES Input Circuit
PIN
TT
L
To
circuit
VERY
WEAK
PFET
Pull-up
Enable
ESD
ESD
VDD
Figure 40:
PRES
Input Circuit