
W83637HF
Publication Release Date: June 25, 2003
- 9 -
Revision 1.3
5. PIN DESCRIPTION
PIN DESCRIPTION
I/O12t
TTL level bi-directional pin with 12 mA source-sink capability.
I/O24t
TTL level bi-directional pin with 24 mA source-sink capability.
I/O12ts
TTL level Schmitt-trigger bi-directional pin with 12 mA source-sink capability.
I/O24ts
TTL level Schmitt-trigger bi-directional pin with 24 mA source-sink capability.
I/OD12t
TTL level bi-directional pin and open drain output with 12 mA sink capability.
I/OD24t
TTL level bi-directional pin and open drain output with 24 mA sink capability.
I/OD12ts
TTL level Schmitt-trigger bi-directional pin and open drain output with 12 mA sink
capability.
I/OD24ts
TTL level Schmitt-trigger bi-directional pin and open drain output with 24 mA sink
capability.
I/OD12cs
CMOS level Schmitt-trigger bi-directional pin and open drain output with 12 mA sink
capability.
I/OD16cs
CMOS level Schmitt-trigger bi-directional pin and open drain output with 16 mA sink
capability.
I/OD12csd
CMOS level Schmitt-trigger bi-directional pin with internal pull down resistor and open
drain output with 12 mA sink capability.
I/OD12csu
CMOS level Schmitt-trigger bi-directional pin with internal pull up resistor and open
drain output with 12 mA sink capability.
O4t
TTL level output pin with 4 mA source-sink capability.
O12t
TTL level output pin with 12 mA source-sink capability.
O16t
TTL level output pin with 16 mA source-sink capability.
O24t
TTL level output pin with 24 mA source-sink capability.
O24ts
TTL level Schmitt-trigger output pin with 24 mA source-sink capability.
OD12t
TTL level open drain output pin with 12 mA sink capability.
OD24t
TTL level open drain output pin with 24 mA sink capability.
O8c
CMOS level output pin with 8 mA source-sink capability.
INt
TTL level input pin.
INts
TTL level Schmitt-trigger input pin.
INtu
TTL level input pin with internal pull up resistor.
INc
CMOS level input pin.
INcd
CMOS level input pin with internal pull down resistor.
INcsu
CMOS level Schmitt-trigger input pin with internal pull up resistor.