Datasheet
73S1215F Data Sheet  DS_1215F_003 
122 Rev. 1.4 
PIN
VDD
STRONG
PFET
STRONG
NFET
Data
From
circuit
TTL
To
circuit
Output
Disable
Pull-up
Disable
VERY
WEAK
PFET
ESD
Figure 31: Digital I/O with Pull Up Circuit 
PIN
VDD
STRONG
PFET
STRONG
NFET
Data
From
circuit
TTL
To
circuit
Output
Disable
VERY
WEAK
NFET
Pull-down
Enable
ESD
Figure 32: Digital I/O with Pull-Down Circuit 










