DS_1209F_004
73S1209F Data Sheet
Rev. 1.2
113
PIN
VDD
STRONG
PFET
STRONG
NFET
Data
From
circuit
TT
L
To
circuit
Output
Disable
Pull-up
Disable
100k
OHM
ESD
Figure 32: Keypad Row Circuit
PIN
VDD
MEDIUM
PFET
STRONG
NFET
Data
From
circuit
TTL
To
circuit
Output
Disable
ESD
1200
OHMS
Figure 33: Keypad Column Circuit