參數(shù)資料
型號(hào): MAX1485EUB+T
廠商: Maxim Integrated Products
文件頁(yè)數(shù): 3/16頁(yè)
文件大?。?/td> 0K
描述: IC TXRX RS485/RS422 10-UMAX
產(chǎn)品培訓(xùn)模塊: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
標(biāo)準(zhǔn)包裝: 2,500
類(lèi)型: 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù): 1/1
規(guī)程: RS422,RS485
電源電壓: 4.75 V ~ 5.25 V
安裝類(lèi)型: 表面貼裝
封裝/外殼: 10-TFSOP,10-MSOP(0.118",3.00mm 寬)
供應(yīng)商設(shè)備封裝: 10-µMAX
包裝: 帶卷 (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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