AS2701 데이터 시트보기 (PDF) - austriamicrosystems AG
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AS2701 Datasheet PDF : 16 Pages
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AS-Interface Slave IC
AS2701A (ISA3+)
c) Power Supply Pins LTGP and LTGN (LTGN = 0 V-reference)
The AS-Interface Slave IC's input at LTGP behaves as if a resistor RP and a (non-linear)
parallel capacitor CP connect LTGP to LTGN.
LTGP input impedance over frequency is as follows:
RP
≥ 10 kOhm
≥ 10 kOhm
≥ 10 kOhm
≥ 10 kOhm
≥ 10 kOhm
≥ 10 kOhm
CP
≤ 35 pF
≤ 45 pF
≤ 48 pF
≤ 51 pF
≤ 54 pF
≤ 60 pF
F
50 kHz
100 kHz
125 kHz
160 kHz
200 kHz
300 kHz
d) Data and Parameter Ports (D0...D3, DSTBn; P0...P3, PSTBn)
These pins are equipped with both an input and output channel as well as a current source
based pull-up structure; the I/O-circuit at these pins and their DC-characteristics @ output
channel 'Off' are described below.
The AS-Interface slave system concept requires D0...D3 and DSTBn to be bidirectional pins
and P0...P3 and PSTBn to be outputs.
The input channel on pins P0...P3 and PSTBn is only implemented to simplify the AS-Interface
Slave IC's device test, and is not intended to be used in AS-Interface Slave system applica-
tions.
D0..D3
DSTBn
P0..P3
PSTBn
U5R
11 µA typ
LTGN
0
-5
II[µA]
-10
-15
-20
04
10
20
30
40
VI[V]
Rev. C, October 2000
Page 7 of 16
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