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參數(shù)資料
| 型號： | ATA6670-FFQW |
| 廠商： | Atmel |
| 文件頁數(shù)： | 18/19頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC TXRX LIN DUAL 14VDFN |
| 標(biāo)準(zhǔn)包裝： | 6,000 |
| 系列： | * |
| 其它名稱： | ATA6670-FFQW-ND |
8
Atmel ATA6670 [DATASHEET]
9204F–AUTO–06/12
If the Atmel ATA6670 is in Sleep mode and the voltage level at the LIN is in dominant state (VLIN <VBUSdom) for a period of time
exceeding tmon (during a short circuit at LIN, for example), the IC switches back to Sleep mode. The VS current consumption
then consists of IVSsleep plus ILINWAKE. After a positive edge at pin LIN the IC switches directly to Fail-safe mode (see Figure 2-4).
Figure 2-4. Short-circuit to GND on the LIN Bus During Sleep Mode
2.13
Local WAKE-up via Pin WAKE2 (Only Available at Transceiver 2)
A falling edge at pin WAKE2 followed by a low level maintained for a certain period of time (> tWAKE) results in a local wake-up
request. According to ISO 7637, the wake-up time ensures that no transients create a wake-up. The transceiver 2 then switches
to Fail-safe mode. Pin INH2 is activated (switches to VS2) and the internal slave termination resistor is switched on. The local
wake-up request is indicated by a low level at pin RXD for interrupting the microcontroller and by a strong pull-down at pin TXD
(see Figure 2-5 on page 9).
The voltage threshold for a wake-up signal is 3V below the VS2 voltage with an output current of typically –3A. Even in the
case of a continuos low at pin WAKE2 it is possible to switch the transceiver 2 into Sleep mode via a low level at pin EN2. The
transceiver 2 will remain in Sleep mode for an unlimited time. To generate a new wake-up at pin WAKE2, a high signal for > 6s
is required. A negative edge then restarts the wake-up filtering time.
Sleep Mode
IVSsleep
IVSfail
+ ILINwake
IVSsleep
VBUSdom
VLINL
LIN Pre-wake
LIN dominant state
LIN BUS
I
VS
Mode of
operation
Int. Pull-up
Resistor
RLIN
off (disabled)
on (enabled)
Wake-up Detection Phase
Sleep Mode
Fail-Safe Mode
tmon
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| ATA6670-FFQW-1 | 制造商:Atmel Corporation 功能描述:2X ATA6663 MULTI-CHIP-MODULE - Tape and Reel 制造商:Atmel Corporation 功能描述:IC TXRX LIN DUAL 14VDFN |
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| ATA6809-TGQY | 功能描述:IC FAILSAFE W/RELAY/DVR 20SOIC 制造商:microchip technology 系列:* 零件狀態(tài):停產(chǎn) 標(biāo)準(zhǔn)包裝:2,000 |
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