Pin circuits (continued) – Samsung S3F80JB User Manual

Page 29

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S3F80JB

PRODUCT OVERVIEW

1-11

PIN CIRCUITS (Continued)

V

DD

Pull-up
Resistor
(55k

Ω-Typ)

V

DD

V

SS

Noise

Filter

INPUT/OUTPUT

Pull-up
Enable

Data

Output Disable

Normal

Input

Open-Drain

Figure 1-6. Pin Circuit Type 2 (Port 1, Port4, P3.4 and P3.5)