ATA6620N

更新时间： 2024-01-09 05:35:14

品牌	Logo	应用领域
爱特美尔 - ATMEL		总线收发器稳压器
页数	文件大小	规格书
22页	404K
描述
LIN Bus Transceiver with Integrated Voltage Regulator

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ATA6620N 技术参数

3.7

3.8

Input/Output Pin (TXD)

This pin is the microcontroller interface to control the state of the LIN output. TXD must be pulled

to ground in order to drive the LIN bus low. If TXD is high or unconnected (internal pull-up resis-

tor), the LIN output transistor is turned off and the bus is in the recessive state.

Dominant Time-out Function (TXD)

The TXD input has an internal pull-up resistor. An internal timer prevents the bus line from being

driven permanently in the dominant state. If TXD is forced to low longer than t_DOM> 4 ms, the

LIN bus driver is switched to the recessive state. To reset this dominant time-out mode, TXD

must be switched to high (> 10 µs) before normal data transmission can be started.

3.9

Output Pin (RXD)

This pin reports the state of the LIN bus to the microcontroller. LIN high (recessive state) is

reported by a high level at RXD; LIN low (dominant state) is reported by a low level at RXD. The

output has an internal pull-up structure with typically 5 kΩ to V_CC. The AC characteristics are

measured with an external load capacitor of 20 pF.

The output is short-circuit protected. In unpowered mode (that is, V_S= 0V), RXD is switched off.

3.10 Enable Input Pin (EN)

This pin controls the operation mode of the interface. After power up of V_S(battery), the IC

switches to Pre-normal mode, even if EN is low or unconnected (internal pull-down resistor). If

EN is high, the interface is in Normal mode.

A falling edge at EN while TXD is still high forces the device to Silent mode. A falling edge at EN

while TXD is low forces the device to Sleep mode.

ATA6620N

4850H–AUTO–12/07

1 2 345 6 7...22

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型号	品牌	描述	获取价格	数据表
ATA6620N_09	ATMEL	LIN Bus Transceiver with Integrated Voltage Regulator	获取价格
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ATA6620-TAQY	ATMEL	LIN ABUS TRANSCEIVER WITH INTEGRATED VOLTAGE REGULATOR	获取价格
ATA6621	ATMEL	LIN Transceiver with 5V Regulator and Watchdog	获取价格
ATA6621_06	ATMEL	LIN Transceiver with 5V Regulator and Watchdog	获取价格
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