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参数资料
| 型号： | MM908E630CVFC |
| 厂商： | FREESCALE SEMICONDUCTOR INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | MICROCONTROLLER, QCC44 |
| 封装： | 9 X 9 MM, 1 MM HEIGHT, 0.65 MM PITCH, ROHS COMPLIANT, QFN-44 |
| 文件页数： | 24/48页 |
| 文件大小： | 2299K |
| 代理商： | MM908E630CVFC |
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Analog Integrated Circuit Device Data
30
Freescale Semiconductor
908E630
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
LIN Pin
The LIN pin offers high susceptibility immunity level from
external disturbance, guaranteeing communication during
external disturbance.
Figure 16. LIN Interface
Slew rate selection
The slew rate can be selected for optimized operation at
10 and 20kBit/s as well as a fast baud rate for test and
programming. The slew rate can be adapted with the bits
LSR1:0 in the LIN Control Register. The initial slew rate is
optimized for 20kBit/s.
J2602 Conformance
To be compliant with the SAE J2602-2 specification, the
J2602 feature has to be enabled in the LINCR Register (bit
DIS_J2602 sets to 0). The LIN transmitter is disabled, in case
a VSUP under-voltage condition occurs, and TXD is in a
Recessive State: the LIN bus goes into a Recessive State
and RXD goes high. The LIN transmitter is not disabled if
TXD is in the Dominant State. A deglitcher on VSUP
(tJ2602_deg) is implemented to avoid false switching.
If the (DIS_J2602) bit is set to 1, the J2602 feature is
disabled, and the communication TXD-LIN-RXD works for
VSUP down to 4.6V (typical value), then the communication
is interrupted. The (DIS_J2602) bit is set per default to 0.
Over-temperature Shutdown (LIN Interrupt)
The output low side FET is protected against over-
temperature conditions. In case of an over-temperature
condition, the transmitter will be shut down and the bit LINOT
in the LIN Status Register is set.
If the bit LINM is set in the Interrupt Mask Register, an
Interrupt IRQ_A will be generated.
The transmitter is automatically re-enabled once the
condition is gone and TxD is High.
RXD Short-circuit Detection (LIN Interrupt)
The LIN transceiver has a short-circuit detection for the
RxD output pin. In case of a short circuit condition, either
5.0 V or Ground, the bit RXSHORT in the LIN Status Register
is set and the transmitter is shutdown.
Interrupt
Control
Module
Wake-up
Module
MOD1:2
LSR0:1
LINPE
J2602
RXONLY
RXSHORT
TXDOM
LINOT
Over-temperature, RX-short
LIN
Wake-up
Filter
LIN
VS1
30k
LGND
Slope
Control
LIN-driver
Slope and Slew Rate Control
Over-temperature Shutdown
(interrupt maskable)
Receiver
TXD
RXD
Wake-up
and TX-dom Interrupt
LIN Driver
Disable
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相关代理商/技术参数 |
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|---|---|
| MM-90N | 功能描述:ANT MAGN MNT VEHIC 3.5"DIA 10'NF RoHS:是 类别:RF/IF 和 RFID >> RF 天线 系列:* 标准包装:1 系列:* |
| MM90R9F | 制造商:Ohmite Mfg Co 功能描述: |
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