MC33663 Datasheet, PDF (22/37 Pages) Freescale Semiconductor, Inc – LIN 2.1 / SAEJ2602-2 Dual LIN Physical Layer

ELECTRICAL CHARACTERISTICS
FUNCTIONAL DIAGRAMS
EN
TXD
LIN
RXD
t₁ (45 s)
t₂ (12.5 s)
Exit Fast Baud Rate
t₃ (12.5 s)
t₄ (12.5 s)
RXD stays High for Normal or Slow Mode validation
Figure 20. Fast Baud Rate Mode Exit (Back to Normal or Slow Slew Rate) for LIN1 or LIN2
VSUP
POR (3.5-5.3 V)
160 µs *
INH1
EN1
TXD1 (High or Low)
LIN1
RXD1 _{(High Z)}
Awake Mode
INH2
EN2
VSUP
EN1
LIN1 in Normal Mode
INH1
TXD1
LIN1
RXD1
EN2
LIN2 in Normal Mode
INH2
V_UVL
POR (3.5-5.3 V)
(High or Low)
(High or Low)
(High Z)
(High or Low)
TXD2 (High or Low)
LIN2
RXD2 _{(High Z)}
Awake Mode
*: this parameter is guaranteed by design
TXD2
LIN2
RXD2
Figure 21. Power Up and Down Sequences
(High or Low)
(High Z)
33663
22
Analog Integrated Circuit Device Data
Freescale Semiconductor