參數(shù)資料
型號(hào): ISL81387IAZ-T
廠商: Intersil
文件頁數(shù): 4/27頁
文件大?。?/td> 0K
描述: TXRX ESD RS-485/422 2PORT 20SSOP
產(chǎn)品培訓(xùn)模塊: Solutions for Industrial Control Applications
標(biāo)準(zhǔn)包裝: 1
類型: 收發(fā)器
驅(qū)動(dòng)器/接收器數(shù): 2/2
規(guī)程: RS232,RS422,RS485
電源電壓: 4.5 V ~ 5.5 V
安裝類型: 表面貼裝
封裝/外殼: 20-SSOP(0.209",5.30mm 寬)
供應(yīng)商設(shè)備封裝: 20-SSOP
包裝: 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁面: 1241 (CN2011-ZH PDF)
其它名稱: ISL81387IAZ-TDKR
12
FN6201.3
November 21, 2007
FIGURE 4A. TEST CIRCUIT
FIGURE 4B. MEASUREMENT POINTS
FIGURE 4. RS-485 RECEIVER PROPAGATION DELAY
FIGURE 5A. TEST CIRCUIT
FIGURE 5B. MEASUREMENT POINTS
FIGURE 5. RS-485 RECEIVER ENABLE AND DISABLE TIMES
FIGURE 6A. TEST CIRCUIT
FIGURE 6B. MEASUREMENT POINTS
FIGURE 6. RS-232 DRIVER PROPAGATION DELAY
FIGURE 7A. TEST CIRCUIT
FIGURE 7B. MEASUREMENT POINTS
FIGURE 7. RS-232 RECEIVER PROPAGATION DELAY
Test Circuits and Waveforms (Continued)
SIGNAL
GENERATOR
R
RA
RXEN
B
A
0V
15pF
VCC
RA
+1.5V
-1.5V
tPLH
0V
VCC
0V
1.5V
tPHL
B
1k
Ω
VCC
GND
SW
FOR SHDN TESTS, SWITCH ON AND RXEN L- H SIMULTANEOUSLY
PARAMETER
DEN
B
SW
tHZ
X
+1.5V
GND
tLZ
X-1.5V
VCC
tZH
X
+1.5V
GND
tZL
X-1.5V
VCC
tZH(SHDN)
0
+1.5V
GND
tZL(SHDN)
0-1.5V
VCC
SIGNAL
GENERATOR
R
RA
RXEN
B
A
15pF
RA
3V
0V
1.5V
VOH
0V
1.5V
VOH - 0.5V
tHZ
RA
VCC
VOL
1.5V
VOL + 0.5V
tLZ
RXEN
OUTPUT HIGH
OUTPUT LOW
tZL
tZH
tZL(SHDN)
tZH(SHDN)
ENABLED
D
DEN
DY, Z
VCC
SIGNAL
GENERATOR
RL
Y, Z
CL
OUT (Y, Z)
3V
0V
tDPHL
1.5V
VO+
VO-
0V
tDPLH
DY,Z
SKEW = |tDPHL - tDPLH|
R
RXEN
A, B
VCC
SIGNAL
GENERATOR
RA, RB
CL = 15pF
RA, RB
3V
0V
tRPHL
1.7V
1.3V
VOH
VOL
0.8V
2.4V
tRPLH
A, B
SKEW = |tRPHL - tRPLH|
ISL81387, ISL41387
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