UT1553B_ Ver la hoja de datos (PDF) - Aeroflex UTMC
Número de pieza
componentes Descripción
Fabricante
UT1553B_ Datasheet PDF : 44 Pages
| |||
5.0 DC ELECTRICAL CHARACTERISTICS
(VDD = 5.0V ±10%; -55°C < TC < +125°C)
SYMBOL
PARAMETER
CONDITION
MINIMUM MAXIMUM
UNIT
VIL
Low-level input voltage
VIH
High-level input voltage
IIN
Input leakage current
VIN = VDD or VSS
TTL inputs
VIN = VDD
Inputs with pull-down resistors VIN = VSS
Inputs with pull-up resistors
0.8
V
2.0
V
-1
1
µA
1110
-2000
µA
-2000
-110
µA
VOL
Low-level output voltage
IOL = 3.2mA
VOH
High-level output voltage
IOH = -400µA
IOZ
Three-state output
VO = VDD or VSS
leakage current
0.4
V
2.4
+10
V
-10
µA
IOS
Short-circuit output current 1, 2 VDD = 5.5V, VO = VDD
-90
90
mA
VDD = 5.5V VO = 0V
mA
CIN
Input capacitance 3
ƒ = 1MHz @ 0V
10
pF
COUT
CIO
Output capacitance 3
Bidirect I/O capacitance 3
ƒ = 1MHz @ 0V
ƒ = 1MHz @ 0V
15
pF
20
pF
IDD
Average operating current 1, 4 ƒ = 12MHz, CL = 50pF
50
mA
QIDD
Quiescent current
Note 5
1.5
mA
Notes:
1. Supplied as a design limit but not guaranteed or tested.
2. Not more than one output may be shorted at a time for a maximum duration of one second.
3. Measured only for initial qualification, and after process or design changes that could affect input/output capacitance.
4. Includes current through input pull-ups. Instantaneous surge currents on the order of 1 ampere can occur during output switching.
Voltage supply should be adequately sized and decoupled to handle a large surge current.
5. All inputs with internal pull-ups or pull-downs should be left open circuit. All other inputs tied high or low.
BIT TIMES
COMMAND
WORD
DATA WORD
STATUS WORD
123
45678
9
10 11 12 13 14
15 16 17 18 19
20
SYNC
SYNC
SYNC
5
1
5
5
1
REMOTE TERMINAL T/R SUBADDRESS/MODE DATA WORD COUNT/ P
ADDRESS
CODE
MODE CODE
16
1
DATA
P
5
111
REMOTE TERMINAL
111111
ADDRESS
RTR-20
Figure 10. MIL-STD-1553B Word Formats
Share Link: 