Datasheet

TLE7259-2GE
Functional Description
Data Sheet 7 Rev. 1.5, 2013-07-26
4.1 Operating Modes
Figure 4 Operation Mode State Diagram
Stand-By Mode
Normal Slope Mode
Sleep Mode
INH = Float
EN = LOW
RxD = HIGH
1)
INH = HIGH
TxD (see Note 1)
RxD (see Note 2)
Note 1:
TxD: Strong Pull Down > 1.5 mA
after Wake-Up via pin WK
TxD: Weak Pull Down 350 kΩ
after Power-Up and
Wake-Up via BUS
INH = HIGH
EN = HIGH
Flash Mode
Normal Operation Mode
Note 2:
RxD: logical „High“
after Power-Up
RxD: logical „Low“
after Wake-Up via BUS
or after Wake-Up via pin WK
A external Pull-Up resistor to the external
microcontroller supply is required for the Wake-Up or
Power-Up indication
Start-Up
Power-Up
 EN
EN High
TxD
EN
 EN  EN
EN Low
 EN
Wake-Up
via  on pin Wk
via  on pin BUS
Go To Normal
Operation Mode
Go To
Sleep Mode
INH = HIGH
EN = HIGH
1)
RxD is „High“ due to the external pull-
up resistor