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U6812B PDF Data sheet ( 特性 )

部品番号 U6812B
部品説明 Single-ended Bus Transceiver with Triple Buffer
メーカ ATMEL Corporation
ロゴ ATMEL Corporation ロゴ 



Total 10 pages
		

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U6812B Datasheet, U6812B PDF,ピン配置, 機能
Features
Wide Power Supply Voltage Range
Short-circuit Protected K-interface, ISO9141 Compatible
Three Short-circuit Protected 40-mA Open-collector Buffers
All Low-power Outputs with Built-in 28-V Clamping
CMOS Compatible Digital Inputs with Hysteresis
Digital 1-mA Push-pull "RxD" K-line Output
Channel-specific Over-temperature Switch Off in Event of Short Circuit
Load-dump Protection and Interference Protection
According to ISO 7637-1/4 (DIN 40839)
Description
The U6812B is a bipolar monolithic K-line bus transceiver designed to provide
bi-directional serial communication in automotive diagnostic applications. The stan-
dard K-line is ISO 9141 compatible for baud rates up to 250 kBaud.
The IC provides three universally applicable 40-mA open-collector buffers, that can be
used for signal decoupling. The U6812B is manufactured using Atmel’s bipolar pro-
cess and fully complies to automotive industry specifications.The U6812B provides an
ideal grouping of SO-packaged low-power drivers, thus meeting customers’ demand
for space-saving and cost-effective circuit board assembly.
Single-ended
Bus Transceiver
with Triple
Buffer
U6812B
Figure 1. Block Diagram
VS
VCC
TXD
TXD
VS
K-diagnosis ISO 9141
VCC
VS/2
VCC/2
IN 1
VCC/2
IN 2
DIS
IN 3
VCC Temperature
control
K
GND
OUT 1
GND
OUT 2
GND
OUT 3
GND
Rev. 4760A–AUTO–10/03

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部品番号部品説明メーカ
U6812B

Single-ended Bus Transceiver with Triple Buffer

ATMEL Corporation
ATMEL Corporation

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