参数资料
型号: MAX1485EUB+T
厂商: Maxim Integrated Products
文件页数: 3/16页
文件大小: 0K
描述: IC TXRX RS485/RS422 10-UMAX
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 收发器
驱动器/接收器数: 1/1
规程: RS422,RS485
电源电压: 4.75 V ~ 5.25 V
安装类型: 表面贴装
封装/外壳: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
供应商设备封装: 10-µMAX
包装: 带卷 (TR)
MAX1481/MAX1484/MAX1485/MAX1486
Software-Selectable, Half-/Full-Duplex, Slew-Rate-Limited,
12Mbps, RS-485/RS-422 Transceivers in MAX Package
______________________________________________________________________________________
11
R
Y
Z
VOD
VOC
Figure 5. Driver DC Test Load
RECEIVER
OUTPUT
TEST POINT
1k
S1
S2
VCC
CL
Figure 6. Receiver Enable/Disable Timing Test Load
DI
DE
3V
Y
Z
CL1
CL2
RDIFF
VID
Figure 7. Driver Timing Test Circuit
OUTPUT
UNDER TEST
500
S1
S2
VCC
CL
Figure 8. Driver Enable/Disable Timing Test Load
DI
3V
0V
Z
Y
VO
0V
-VO
VO
1.5V
tDPLH
1/2 VO
10%
tR
90%
tDPHL
1.5V
1/2 VO
10%
tF
VDIFF = VY - VZ
VDIFF
tSKEW = | tPLH - tPHL |
Figure 9. Driver Propagation Delays
OUTPUT NORMALLY LOW
OUTPUT NORMALLY HIGH
3V
0V
Y, Z
VOL
Y, Z
0V
1.5V
VOL +0.5V
VOH -0.5V
2.3V
tDZL(SHDN), tDPL
tDLZ
DZH(SHDN), DZH
DHZ
DE
Figure 10. Driver Enable and Disable Times
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