91C94 Datasheet, PDF (14/120 Pages) SMSC Corporation – ISA/PCMCIA SINGLE CHIP ETHERNET CONTROLLER WITH RAM

PIN NUMBER
VTQFP/
QFP TQFP
NAME
92
90 nExternal
Endec
13,21
40,50
61,100
73,81
91
2,8
18,24
31,56,6
6,94
80,88
89
11,19
48,59
98,38
71,79
89
100,6
16,22,
29,54,
64,92
78,86
87
Analog
Power
Ground
Analog
Ground
SYMBOL
nXENDEC
VDD
BUFFER
TYPE
I with
pullup
DESCRIPTION
When tied low, the LAN91C94 is
configured for EXTERNAL ENDEC.
When tied high or left open, the
LAN91C94 uses its internal
encoder/decoder
+5V power supply pins
AVDD
GND
+5V analog power supply pins
Ground pins
AGND
Analog ground pins
O4
O162
O24
OD16
OD24
I/O24
I
IS
Iclk
BUFFER SYMBOLS
Output buffer with 2mA source and 4mA sink.
Output buffer with 2mA source and 16mA sink.
Output buffer with 12mA source and 24mA sink.
Open drain buffer with 16mA sink.
Open drain buffer with 24mA sink.
Bidirectional buffer with 12mA source and 24mA sink.
Input buffer with TTL levels
Input buffer with Schmitt Trigger Hysteresis
Clock input buffer
DC levels and conditions defined in the DC Electrical Characteristics section.
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