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PDF AS2702-16T Data sheet ( Hoja de datos )
| Número de pieza | AS2702-16T | |
| Descripción | AS-Interface Slave IC | |
| Fabricantes | austriamicrosystems AG | |
| Logotipo |  |
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1 page  
AS-Interface Slave IC
AS2702 (SAP4.1)
Notes:
1
2
3
4
5
6
7
50 V during t > 50 µs; repetition rate < 0.5 Hz
Latch-up immunity test. Pls. observe max. power dissipation allowed.
Human body model: R = 1.5 kOhm; C = 100 pF
Machine model; applies only for LTGP-LTGN
260 °C during 10 s (reflow and wave soldering); 360 °C during 3 s for manual solder-
ing. Twofold reflow soldering is acceptable.
Free convection, see fig. 1
No forced cooling. PCB-surface: 21 cm2; still air volume around the device: 10 cm3
Pv/ W
1
Pv/ W
1
0,5 0,5
62,&
50
t/ °C
100
62,&
50
Fig. 1: Max. acceptable power dissipation relative to ambient temperature
t/ °C
100
b) Recommended Operating Conditions
6\PERO
VLTGP
ILTG
OA
FC
3DUDPHWHU
Positive supply voltage / dc
portion
Supply current consumption
Ambient temperature
Quartz frequency
Sensitivity against moisture
PLQ
17.5
QRP
- 25 25
5.3333
33
PD[
34
6
85
8QLW
V
mA
°C
MHz
1RWH
1
2
3
4
5
Notes:
1
2
3
4
5
False-poling protection diode to be inserted between pos. AS-interface bus line and
LTGP-pin. LTGP-pin to be protected furthermore with a voltage clamp between
LTGP and LTGN.
Oscillator on; data transmission stage off; no loads connected
Power dissipation restrictions as per fig. 1 to be observed
ASI Quarz
Level 5 acc. to JEDEC-standard JESD22-A112, Table 1
Rev. C, January 2001
Page 5 of 18
5 Page 
AS-Interface Slave IC
AS2702 (SAP4.1)
The following table specifies the timing parameters relating to fig. 3:
6\PERO
tSTB
tPSTBn
tINP
3DUDPHWHU
Delay PSTBn HL-edge to Px
output data valid
PSTBn strobe width
Input data valid time window
PLQ PD[ 8QLW 1RWH
1.5 µs
6 6.8
10.5 12.5
µs
µs
1
2
Notes:
1
2
Pulse width depends substantially on value of external pull-up resistor
Timing reference is PSTBn HL-edge.
Applies only to parameter port set to 'input' operation
The dc-parameters of the parameter port pins P3, …, P0 are specified as follows:
6\PERO
IOUTLO
IOUTHI
IOUTHI7
IINLO
VSCHLT
VIN
3DUDPHWHU
Sink current @ output L
Leakage current @ output off
Leakage current @ output off;
pull-up current source off
Input current @ VIN = 1V
Input threshold voltage
Acceptable input voltage @
output off
PLQ
10
- 10
-1
-5
2.5
- 0.3
PD[
10
1
- 20
3.5
40
8QLW 1RWH
mA VOUT = 1V
µA VOUT = 5V
µA VOUT = 5V;
IO-conf. = 7
µA 1
V2
V
Notes:
1
2
The passive high-side current-source provides an about constant input current @
0V <= VIN <= 4V
No hysteresis implemented
Though equipped for bidirectional data transfer as D3, …, D0, the parameter port is never-
theless less flexible than the data port.
Note the following differences:
ik) The parameter port is set portwise, the data port bitwise by the IO-configuration code;
il) The parameter port can only be set to either ‘output’ or ‘input’. A bidirectional behaviour
within a strobe cycle is not possible;
im) The parameter port is set to ‘output’ as a rule; the only exception occurs in case of IO-
configuration 7 and a master data request, which set it to ‘input’.
To govern the data transfer at the parameter port P3, …, P0 strobe pin PSTBn is equipped
with a low-side open-drain output switch plus a passive high-side current source with a nom.
10 µA pull-up current capability. Typically the PSTBn-strobe width is about 6 µs, see fig. 3.
( However to simplify and shorten the component test time of the slave device, the PSTBn pin
is also used as an input. Input low pulses of more than 50 µs each will step and cycle the de-
vice through 3 different testmodes beyond the regular operation as described in this da-
tasheet.)
Rev. C, January 2001
Page 11 of 18
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet AS2702-16T.PDF ] | |
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