ZENTRUM MIKROELEKTRONIK DRESDEN AG
“ASI for you” IC
Datasheet
1.4 Package Pin Assignment
Table 4: ASI4U Pin List
Package
Name
Direction Type
Description
pin number
1
ASIP
IN
Analog
AS-i Transmitter/Receiver input, to be connected to
ASI+ lead of AS-i cable, via reverse polarity protec-
tion diode
2
3
ASIN
0V
OUT
Analog
AS-i Transmitter/Receiver output, to be connected to
ASI- lead of AS-i cable
SUPPLY
IC Ground
Common ground for all IC ports except ASIP/ASIN,
To be connected to ASIN if no external coils are used
4
5
IRD
IN
Analog / CMOS (5V) Addressing Channel input
FID
IN
Pull-up
Periphery Fault input
Crystal oscillator
6
OSC2
OSC1
DO3
DO2
DO1
DO0
GND
P3
OUT
IN
Analog (5V)
7
Analog / CMOS (5V) Crystal oscillator / External clock input
8
OUT
OUT
OUT
OUT
Open Drain
Open Drain
Open Drain
Open Drain
SUPPLY
Data port output D3
9
Data port output D2
10
11
12
13
14
Data port output D1
Data port output D0
Digital I/O ground, to be connected with 0V
I/O
I/O
Pull-up/Open Drain Parameter port P3
Pull-up/Open Drain Parameter port P2 /
P2
Receive Strobe output in Master Mode
Pull-up/Open Drain Parameter port P1 /
Power Fail output in Master Mode
Pull-up/Open Drain Parameter port P0 /
Data Clock output in Master Mode
Data port input D0
15
16
P1
P0
I/O
I/O
17
18
19
20
21
DI0
DI1
DI2
DI3
PST
IN
IN
IN
IN
I/O
Pull-up
Pull-up
Pull-up
Pull-up
Data port input D1
Data port input D2
Data port input D3
Pull-up/Open Drain Parameter Strobe output
(input function used for IC test purposes only)
Pull-up/Open Drain Data Strobe output / Reset input
22
DSR
I/O
Copyright © 2006, ZMD AG, Rev.1.4
All rights reserved. The material contained herein may not be reproduced, adapted, merged, translated, stored, or used without the prior written consent of the copyright owner. The
Information furnished in this publication is preliminary and subject to changes without notice.
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ZMD [ Zentrum Mikroelektronik Dresden AG ]
