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參數(shù)資料
| 型號(hào)： | U6812B |
| 廠商： | ATMEL CORP |
| 元件分類： | Line Driver or Receiver |
| 英文描述： | LINE TRANSCEIVER, PDSO16 |
| 封裝： | 0.150 INCH, SOP-16 |
| 文件頁(yè)數(shù)： | 1/10頁(yè) |
| 文件大小： | 137K |
| 代理商： | U6812B |
Rev. 4760A–AUTO–10/03
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.
Figure 1.
Block Diagram
VCC/2
K
IN 1
IN 2
DIS
IN 3
VS
VCC
TXD
TXD
OUT 1
GND
OUT 2
GND
OUT 3
Temperature
control
VCC
VS/2
VCC/2
K-diagnosis ISO 9141
VCC
VS
GND
GND
Single-ended
Bus Transceiver
with Triple
Buffer
U6812B
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