參數(shù)資料
型號: MC33990
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
英文描述: J-1850 SERIAL TRANSCEIVER(J-1850總線收發(fā)器)
中文描述: 殲1850串行收發(fā)器(的J - 1850總線收發(fā)器)
文件頁數(shù): 3/16頁
文件大?。?/td> 455K
代理商: MC33990
MOTOROLA ANALOG INTEGRATED CIRCUIT DEVICE DATA
33990
3
PIN FUNCTION DESCRIPTION
Pin
Pin Name
Description
1
SLEEP
Enables the transceiver when Logic 1 and disables the transceiver when Logic 0.
2
GND
Device ground pin.
3
LOAD
Accommodates an external pull-down resistor to ground to provide loss of ground protection.
4
BUS
Waveshaped SAE Standard J-1850 Class B transmitter output and receiver input.
5
V
BAT
Provides device operating input power.
6
4X/LOOP
Tristate input mode control; Logic 0 = normal waveshaping, Logic 1 = waveshaping disabled for 4X
transmitting, high impedance = loopback mode.
7
Tx
Serial data input (DI) from the microcontroller to be transmitted onto Bus.
8
Rx
Bus received serial data output (DO) sent to the microcontroller.
2
2
3
3
4
4
8
7
6
5
11
8
7
5
6
Rx
Tx
V
BAT
4X/LOOP
SLEEP
GND
LOAD
BUS
F
Freescale Semiconductor, Inc.
Go to: www.freescale.com
n
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