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33889 Datasheet, PDF (13/60 Pages) Freescale Semiconductor, Inc – System Basis Chip with Low Speed Fault Tolerant CAN Interface
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ELECTRICAL CHARACTERISTICS
STATIC ELECTRICAL CHARACTERISTICS
Table 4. Static Electrical Characteristics (continued).
Characteristics noted under conditions - VSUP From 5.5 V to 18 V and TJ from -40°C to 125°C, unless otherwise noted. Typical
values noted reflect the approximate parameter means at TA = 25°C under nominal conditions unless otherwise noted.
Description
Symbol
Min
Typ
Max
Unit
Transient Voltage At Pins CANH, CANL
0.0 < V2-INT < 5.5 V; VSUP ≥ 0.0; T < 500 ms
Transient Voltage On Pins CANH, CANL (Coupled Through
1.0 nF Capacitor)
VCANH/VCANL
VTR
-40
-150
40
V
100
V
Detection Threshold For Short-circuit To Battery Voltage
(Term VBAT Mode) MC33889B
VCANH
VSUP/2+3
VSUP/2+5
V
Detection Threshold For Short-circuit To Battery Voltage
(Term VBAT Mode) MC33889D
VCANH
VSUP/2+3
VSUP/
V
2+4.55
DC Voltage On Pins RTH, RTL
Transient Voltage At Pins RTH, RTL
0.0 < V2-INT < 5.5 V; VSUP ≥ 0.0; T < 500 ms
TRANSMITTER DATA PIN (TX)
VRTL, VRTH
-0.3
VRTH/VRTL
-0.3
+27
V
40
V
High Level Input Voltage
Low Level Input Voltage
TX High Level Input Current (VI = 4.0 V)
TX Low Level Input Current (VI = 1.0 V)
RECEIVE DATA PIN (RX)
VIH
VIL
ITXH
ITXL
0.7*V2
-0.3
-100
-100
V2+0.3V
V
0.3 * V2
V
-50
-25
µA
-50
-25
µA
High Level Output Voltage RX (I0 = -250 µA)
Low Level Output Voltage (I0 = 1.5 mA)
CAN HIGH AND CAN LOW PINS (CANH, CANL)
VOH
VOL
V2-INT - 0.9
0.0
V2-INT
V
0.9
V
Differential Receiver, Recessive To Dominant Threshold
VDIFF1
V
(By Definition, VDIFF = VCANH-VCANL)
For 33889D
-3.5
-3.0
-2.5
For 33889B
-3.2
-2.6
-2.1
Differential Receiver, Dominant To Recessive Threshold
VDIFF2
V
(Bus Failures 1, 2, 5)
For 33889D
For 33889B
-3.5
-3.0
-2.5
-3.2
-2.6
-2.1
CANH Recessive Output Voltage
TX = 5.0 V; R(RTH) < 4.0 k
CANL Recessive Output Voltage
TX = 5.0 V; R(RTL) < 4.0 k
VCANH
VCANL
V2-INT - 0.2
0.2
V
V
Analog Integrated Circuit Device Data
Freescale Semiconductor
33889
13
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