Datasheet

TLE7269G
Functional Description
Data Sheet 8 Rev. 1.2, 2007-11-13
4.1 Operating Modes
Figure 4 Operation Mode State Diagram
Status TxD1?
HIGHLOW
Stand-By Mode
Low Slope Mode
(Transceiver 1 &
Transceiver 2)
Sleep Mode
INH1/INH2 = Float
EN = LOW
RxD1/RxD2 = Float
Status W2O ?
INH1, INH2 = HIGH
TxD1 (see Note 1)
RxD1, RxD2 (see Note 2)
Note 1:
TxD1: Strong Pull Down > 1.5 mA
after Wake-Up via pin WK
TxD1: Weak Pull Down 350 kΩ
after Power-Up and
Wake-Up via BUS1 or BUS2
INH1 = HIGH
INH2 = HIGH
EN = HIGH
Flash Mode
(Transceiver 1 &
Transceiver 2)
INH1 = High
INH2 = High
EN = High
Normal Operation Mode
Note 2:
RxD1: logical „High“
after Power-Up
RxD1: logical „Low“
after Wake-Up via BUS1 or BUS2
or after Wake-Up via pin WK
RxD2: logical „Low“
after Wake-Up via BUS2
Start-Up
Power-Up
 EN
 EN
 TxD1
EN High
Normal Slope Mode
(Transceiver 1 &
Transceiver 2)
INH1 = HIGH
INH2 = HIGH
EN = HIGH
TxD1
EN
TxD1
EN
 EN  EN
 EN
HIGHLOW
Bus Wake-Up
feature on BUS2
turned off!
Sleep Mode
INH1/INH2 = Float
EN = LOW
RxD1/RxD2 = Float
EN Low
 EN
 EN
Wake-Up
via  on pin Wk
via  on pin BUS1 or BUS2
Wake-Up
via  on pin Wk
via  on pin BUS1 only !
 TxD1
EN High
EN Low
Go To Normal
Operation Mode
Go To
Sleep Mode