TH8061KDCA MELEXIS [Melexis Microelectronic Systems], TH8061KDCA Datasheet - Page 27

• Manufacturer Part Number: TH8061KDCA
• Description: Voltage Regulator with integrated LIN Transceiver
• Manufacturer: MELEXIS [Melexis Microelectronic Systems]

4.5 Connection to Flash-MCU
While programming a flash MCU the TH8061 should be disconnected from the MCU. This can be done via
disconnecting the supply voltage from the TH8061 or by switching off with the EN pin. The reverse current
supply of the IC via the RxD pin, if the connected MCU pin is used as normal signal input and programming
input, must be inhibited via a decoupling diode. In this case the MCU must be supplied via the programming
interface.
The programming of the Flash is also possible via the LIN pin, if the MCU supports this kind of flash mode.
TH8061 – Datasheet
3901008061
Figure 27 – Example circuitry for connection of RxD to MCU for flash programming
V
V
high_RxD
low_RxD
= 0.8V
>= 4.7V at V
TH8061
CC
RESET
Voltage Regulator with integrated LIN Transceiver
= 5V
VCC
RxD
TxD
10u...47u
Page 27 of 36
47n...100n
0.7V
Prog.-Data
V
high
= 4V at V
MCU
CC
TH8061
= 5V
June 2004
Rev 007