BUFFER
TYPE
DESCRIPTION
IO12
O12
O12PD
OD12
O6
OD14
OP14
IOP14
O4
ICLK
I
IS
Input/Output. 12mA sink; 6mA source
Output. 12mA sink; 6mA source
Output. 12mA sink; 6mA source with 30µa pull-down
Open Drain. 12mA sink
Output. 6mA sink; 3mA source
Open Drain. 14mA sink
Output. 14mA sink; 14mA source. Backdrive Protected
Input/Output. 14mA sink; 14mA source. Backdrive Protected
Output. 4mA sink; 2mA source
Input to Crystal Oscillator Circuit (TTL levels)
Input TTL Compatible
Input with Schmitt Trigger
Output Drivers
Active output drivers in the FDC37N769 will always achieve the minimum specified DC Electrical Characteristics
shown in TABLE 117. Note: If there is a pull-up on an external node driven by an active output driver the
FDC37N769 will sink current from the pull-up through the low impedance source.
SMSC DS – FDC37N769
Page 14 of 137
Rev. 12/21/2000
SMSC [ SMSC CORPORATION ]
