S3C72K8 Datasheet, PDF (8/30 Pages) Samsung semiconductor – singl-chip CMOS microcontroller

PRODUCT OVERVIEW
PNE
Data
Output
Disable
S3C72K8/P72K8
VDD
VDD
P-CH
Pull-up
Resistor
Resistor
Enable
I/O
N-CH
Schmitt Trigger
Figure 1-7. Pin Circuit Type E-2
Resistor Enable
VDD
Pull-up
Resistor
Schmitt Trigger
I/O
Digital In
EXT-REF
(P1.0 only)
Analog In
+
-
Comparator
INT-REF
Digital or Analog Selectable
by Software (P1MOD)
Figure 1-8. Pin Circuit Type F-4
1-8