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ATA5423-PLSW Datasheet(PDF) 95 Page - ATMEL Corporation

Part # ATA5423-PLSW
Description  UHF ASK/FSK Transceiver
PDF  100 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATA5423-PLSW Datasheet(HTML) 95 Page - ATMEL Corporation

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95
4841D–WIRE–10/07
ATA5423/ATA5425/ATA5428/ATA5429
17. Digital Port Characteristics
All parameters refer to GND and are valid for T
amb = –40°C to +85 °C, VVS1 = VS2 = 2.4V to 3.6V (1 Li battery application (3V)) and
VVS2 = 4.4V to 6.6 V (2 Li battery application (6V)) and VVS2 = 4.75V to 5.25V (Base-station Application (5V)). Typical values at
VVS1 =VVS2 = 3V and Tamb = 25°C unless otherwise specified.
No.
Parameters
Test Conditions
Pin
Symbol
Min.
Typ.
Max.
Unit
Type*
17
Digital Ports
17.1
CS input
Low level input voltage
VVSINT = 2.4V to 5.25V
35
VIl
0.2
×
V
VSINT
VA
High level input voltage V
VSINT = 2.4V to 5.25V
35
V
Ih
0.8
×
VVSINT
V
VSINT
VA
17.2
SCK input
Low level input voltage
V
VSINT = 2.4V to 5.25V
33
V
Il
0.2
×
V
VSINT
VA
High level input voltage VVSINT = 2.4V to 5.25V
33
VIh
0.8
×
V
VSINT
VVSINT
VA
17.3
SDI_TMDI input
Low level input voltage
V
VSINT = 2.4V to 5.25V
32
V
Il
0.2
×
VVSINT
VA
High level input voltage V
VSINT = 2.4V to 5.25V
32
V
Ih
0.8
×
V
VSINT
V
VSINT
VA
17.4
TEST1 input
TEST1 input must
always be directly
connected to GND
20
0
0
V
17.5
TEST2 input
TEST2 input must
always be direct
connected to GND
23
0
0
V
17.6
PWR_ON input
Low level input voltage
Internal pull
-down with
series connection of
40 k
Ω ±20% resistor
and diode
40
VIl
0.4
V
A
High level input
voltage(1)
Internal pull
-down with
series connection of
40 k
Ω ±20% resistor
and diode
40
VIh
0.8
× V
VS2
VA
17.7
Tn input
Low level input voltage
Internal pull-up resistor
of 50 k
Ω ±20%
41, 42,
43, 44,
45
VIl
0.2
× V
VS2
VA
High level input
voltage(1)
Internal pull
-up resistor
of 50 k
Ω ±20%
41, 42,
43, 44,
45
VIh
× V
VS2
–0.5V
VA
17.8
433_N868 input
Low level input voltage
6VIl
0.25
V
A
Input current low
6
I
Il
–5µA
A
High level input voltage
6
V
Ih
1.7
AVCC
V
A
Input current high
6
I
Ih
1µA
A
*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter
Note:
1. If a logic high level is applied to this pin, a minimum serial impedance of 100
Ωmust be ensured for proper operation over full
temperature range.



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