AC104QF Datasheet, PDF (6/37 Pages) List of Unclassifed Manufacturers – Ultra Low Power 10/100 Quad RMII Ethernet Transceiver

AC104QF
Ultra Low Power 10/100 Quad RMII Ethernet Transceiver
PIN DESCRIPTIONS
Many of the pins of these devices have multiple functions. The multi-function pins will be designated by bolding of
the pin number. Separate descriptions of these pins will be listed in the proper sections. Designers must assure that
they have identified all modes of operation prior to final design.
NOTES:
The pin assignment shown below and in the pin description table is subject to change without notice. The user is
advised to contact Altima Communications Inc. before implementing any design based on the information provided in
this data sheet.
Signals types:
I = input
O = output
Z = high impedance
U = internally pull up
D = internally pull down
A = analog signal
* = Active Low Signal
NC = No Connect pin
MDI (Media Dependent Interface) Pins
Pin Name
RXIN(0)
RXIN(1)
RXIN(2)
RXIN(3)
RXIP(0)
RXIP(1)
RXIP(2)
RXIP(3)
TXON(0)
TXON(1)
TXON(2)
TXON(3)
TXOP(0)
TXOP(1)
TXOP(2)
TXOP(3)
FXRP(3)
FXRN(3)
FXTP(3)
FXTN(3)
SDP(3)
SDN(3)
Pin #
1
14
17
30
2
13
18
29
6
9
22
25
5
10
21
26
34
35
36
37
32
33
Type
AI
AI
AI
AI
AI
AI
AI
AI
AO
AO
AO
AO
AO
AO
AO
AO
AI/O
AI/O
AO
AO
A/I,O
A/I,O
Description
Receiver input Negative for both 10Base-T and 100Base-TX.
Receiver input Positive for both 10Base-T and 100Base-TX.
Transmitter output Negative for both 10Base-T and 100Base-TX.
Transmitter output Positive for both 10Base-T and 100Base-TX.
Receiver input Positive for 100Base-FX. (Port-3)
Receiver input Negative for 100Base-FX. (Port-3)
Transmitter output Positive for 100Base-FX. (Port-3)
Transmitter output Negative for 100Base-FX. (Port-3)
Signal Detect Input (For port 3 only). Indicates signal quality status on the fiber-
optic link in 100Base-FX mode. When the signal quality is good, the SDP pin
should be driven high relative to the SDN pin.
2055 Gateway Parkway Suite 700, San Jose, CA 95110 [phone] (www.altimacom.com)
Altima Communications Inc. reserves the right to make changes to this document without notice.
Document Revision 3.2
Page 6 of 37