33889 Datasheet, PDF (2/60 Pages) Freescale Semiconductor, Inc – System Basis Chip with Low Speed Fault Tolerant CAN Interface

DEVICE VARIATIONS
DEVICE VARIATIONS
Table 1. Device Variations Between the 33889D and 33889B Versions ⁽¹⁾
Parameters
Symbol
Trait
Device Part Number
MC33889B⁽²⁾
MC33889D⁽²⁾
Differential Receiver, Recessive To Dominant Threshold
Min
(By Definition, V_DIFF = V_CANH-V_CANL)
V_DIFF1
Typ
3.2 V
2.6 V
3.5 V
3.0 V
Max
Differential Receiver, Dominant To Recessive Threshold
Min
(Bus Failures 1, 2, 5)
V_DIFF2
Typ
2.1 V
3.2 V
2.6 V
2.5 V
3.5 V
3.0 V
CANH Output Current (V_CANH = 0; TX = 0.0)
I_CANH
Max
Min
Typ
2.1 V
50 mA
75 mA
2.5 V
50 mA
100 mA
CANL Output Current (V_CANL = 14 V; TX = 0.0)
Max
110 mA
Min
I_CANL
Typ
50 mA
90 mA
130 mA
50 mA
140 mA
Max
Detection threshold for Short circuit to Battery voltage
Vcanh
max
loop time Tx to Rx, no bus failure, ISO configuration
tLOOPRD
max
loop time Tx to Rx, with bus failure, ISO configuration
tLOOPRD-F
max
loop time Tx to Rx, with bus failure and +-1.5V gnd shift, tLOOPRD/DR-F+GS
5 node network, ISO configuration
135 mA
Vsup/2 + 5V
N/A
N/A
N/A
170 mA
Vsup/2 + 4.55V
1.5us
1.9us
3.6us
Minimum Dominant time for Wake up on CANL or CANH
tWAKE
min
N/A
8
(Tem Vbat mode)
typ
30
16
T2SPI timing
T2spi
max
N/A
min
not specified, 25us
spec applied
30
25us
DEVICE BEHAVIOR
CANH or CANL open wire recovery principle
Rx behavior in TermVbat mode
Reference MC33889B: on page
after 4 non
33
consecutive pulses
after 4 consecutive
pulses
Reference MC33889D: on page Rx recessive, no pulse Rx recessive, dominant
34
pulse to signal bus
traffic
Notes
1. This datasheet uses the term 33889 in the inclusive sense, referring to both the D version (33889D) and the B version (33689B).
2. The 33889D and 33889B versions are nearly identical. However, where variations in characteristic occur, these items will be separated
onto individual lines.
33889
2
Analog Integrated Circuit Device Data
Freescale Semiconductor