参数资料
型号: SP337EBCY-L
厂商: Exar Corporation
文件页数: 4/18页
文件大小: 0K
描述: IC TXRX RS232/422/485 28TSSOP
标准包装: 50
类型: 收发器
驱动器/接收器数: 2/2
规程: RS232,RS422,RS485
电源电压: 3.3 V ~ 5 V
安装类型: 表面贴装
封装/外壳: 28-TSSOP(0.173",4.40mm 宽)
供应商设备封装: 28-TSSOP
包装: 管件
其它名称: 1016-1372-5
FIGURE 13. RS-485 RECEIVER ENABLE AND DISABLE TIMES TEST CIRCUIT
1.5V
-1.5V
S3
A
GENERATOR
50Ω
C
L= 15pF
R
1kΩ
S1
S2
Vcc
B
RE
OUT
FIGURE 14. RS-485 RECEIVER ENABLE AND DISABLE TIMES TIMING DIAGRAM 1
3V
1.5V
0V
RE
OUT
S1 is open, S2 is closed, S3 = 1.5V
VOH
tZH
VOH /2
FIGURE 15. RS-485 RECEIVER ENABLE AND DISABLE TIMES TIMING DIAGRAM 2
3V
0V
1.5V
VCC
RE
OUT
S1 is closed, S2 is open, S3 = -1.5V
tZL
VOL= VCC/2
VOL
SP337E
12
3.3V TO 5V RS-232/RS-485/RS-422 MULTIPROTOCOL TRANSCEIVER
REV. 1.0.2
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