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MC33990D Fiches technique(PDF) 7 Page - Freescale Semiconductor, Inc

No de pièce MC33990D
Description  Enhanced Class B Serial Transceiver
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Fabricant  FREESCALE [Freescale Semiconductor, Inc]
Site Internet  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

MC33990D Fiches technique(HTML) 7 Page - Freescale Semiconductor, Inc

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Analog Integrated Circuit Device Data
Freescale Semiconductor
7
33990
ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
DYNAMIC ELECTRICAL CHARACTERISTICS
Table 5. Dynamic Electrical Characteristics
Characteristics noted under conditions of 7.0 V
≤ V
BAT ≤ 16 V, -40°C ≤ TA ≤ 125°C, SLEEP = 5.0 V unless otherwise noted.
Typical values reflect the parameter's approximate midpoint average value with VBAT = 13 V, TA = 25°C. All positive currents
are into the pin. All negative currents are out of the pin.
Characteristic
Symbol
Min
Typ
Max
Unit
BUS
BUS Voltage Rise Time (10) (9.0 V
≤ V
BAT ≤ 16 V, Tx = 7.812 kHz Square
Wave) (see Figure 6)
BUS Load = 3,300 pF and 1.38 k
Ω to GND
BUS Load = 16,500 pF and 300
Ω to GND
trise(BUS)
9.0
9.0
11.15
11.86
15
15
µs
BUS Voltage Fall Time (10) (9.0 V
≤ V
BAT ≤ 16 V, Tx = 7.812 kHz Square
Wave) (see Figure 6)
BUS Load = 3,300 pF and 1.38 k
Ω to GND
BUS Load = 16,500 pF and 300
Ω to GND
tfall(BUS)
9.0
9.0
10.50
11.17
15
15
µs
Pulse Width Distortion Time (9.0 V
≤ V
BAT ≤ 16 V, Tx = 7.812 kHz Square
Wave) (see Figure 7)
BUS Load = 3,300 pF and 1.38 k
Ω to GND
tpwd(BUS)
35
62
93
µs
Propagation Delay
TX Threshold to RX Threshold
tpd(BUS)
17.7
25
µs
TX
TX to BUS Delay Time (Tx = 2.5 V to VBUS = 3.875 V) (Figure 8)
4X Mode
Normal Mode
tTxDelay
13
2.6
17.3
4.0
24
µs
SLEEP
to Tx Setup Time (Figure 8)
tSLEEPTxSU
80
40
µs
RX
RX Output Delay Time (TX = 2.5 V to VBUS = 3.875 V) (see Figure 9)
Low-to-Output High
High-to-Output Low
tRxDelay/L–H
tRxDelay/H–L
0.11
0.38
2.0
2.0
µs
RX Output Transition Time (CRx = 50 pF to GND, 10% and 90% Points)
(see Figure 10)
Low-to-Output High
High-to-Output Low
tRxTrans/L–H
tRxTrans/H–L
0.34
0.08
1.0
1.0
µs
Rx Output Transition Time (11) (CRx = 50 pF to GND, SLEEP = 0 V, 10% and
90% Points) (see Figure 10)
Low-to-Output High
High-to-Output Low
tRxTrans/L–H
tRxTrans/H–L
0.32
0.08
5.0
5.0
µs
Notes
10.
Typical is the parameter's approximate average value with VBAT = 13 V, TA = 25°C.
11.
RX Output Transition Time from a sleep state.


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