W78E378 Datasheet, PDF (5/38 Pages) Winbond – MONITOR MICROCONTROLLER

Preliminary W78E378/W78C378/W78C374
Pin Description, Continued
PIN NAME I/O
DESCRIPTION
P4.0 (HFI)
I/O P4.0 Output, HFI Input
Sink/Source current: 4 mA/-4 mA
P4.1
O P4.1 Output
Sink/Source current: 4 mA/-4 mA
P4.2
O P4.2 Output
Sink/Source current: 4 mA/-4 mA
P4.3
O P4.3 Output
Sink/Source current: 4 mA/-4 mA
P4.4 (SCL2) I/O P4.4 Output, SIO2 port serial clock I/O
Schmitt trigger input
VIH/VIL = 0.7 VDD/0.3 VDD, V+/V- = ~0.6 VDD/0.4 VDD
Open-drain output, sink current: 8 mA
P4.5 (SDA2) I/O P4.5 Output, SIO2 port serial data I/O
Schmitt trigger input
VIH/VIL = 0.7 VDD/0.3 VDD, V+/V- = ~0.6 VDD/0.4 VDD
Open-drain output, sink current: 8 mA
P4.6
O P4.6 Output
Sink/Source current: 4 mA/-4 mA
P4.7 (HFO)
O P4.7 Output, HFO Output
Sink/Source current: 4 mA/-4 mA
Publication Release Date: December 1999
-5-
Revision A1