PEF2091 Siemens Semiconductor Group, PEF2091 Datasheet - Page 41

• Manufacturer Part Number: PEF2091
• Description: ICs for Communications(ISDN Echocancellation Circuit)
• Manufacturer: Siemens Semiconductor Group

Pin No.
P-LCC-44
35
33
44
43
42
41
40
Semiconductor Group
Pin No.
T-QFP64
M-QFP64
58
55
5
4
3
2
1
Symbol
CDOUT
A2
not used
not used I
A3
not used
not used I/O
D0
AD0
not used I/O
D1
AD1
not used I/O
D2
AD2
not used I/O
D3
AD3
not used I/O
D4
AD4
Input (I)
Output (O)
I/O
I/O
41
Function
Controller Data Out (Serial mode):
CCLK determines the data rate.
CDOUT is "high Z" if no data is
transmitted.
Address bus pin (Demultiplexed
mode).
(Multiplexed mode) tie to GND.
(Serial mode) tie to GND.
Address bus pin (Demultiplexed
mode).
(Multiplexed mode) tie to GND.
(Serial mode) tie to GND.
Data bus pin (Demultiplexed mode)
Address/Data bus pin (Multiplexed
mode)
(Serial mode) tie to GND.
Data bus pin (Demultiplexed mode)
Address/Data bus pin (Multiplexed
mode)
(Serial mode) tie to GND.
Data bus pin (Demultiplexed mode)
Address/Data bus pin (Multiplexed
mode)
(Serial mode) tie to GND.
Data bus pin (Demultiplexed mode)
Address/Data bus pin (Multiplexed
mode)
(Serial mode) tie to GND.
Data bus pin (demultiplexed modes)
Address/Data bus pin (Multiplexed
mode)
Pin Descriptions
Data Sheet 01.99
PEB 2091
PEF 2091