參數(shù)資料
型號(hào): ISL3331IRZ-T
廠商: INTERSIL CORP
元件分類: Buffer和線驅(qū)動(dòng)
英文描述: 3.3V, ±15kV ESD Protected, Dual Protocol (RS-232/RS-485) Transceivers; Temperature Range: -40°C to 85°C; Package: 40-QFN T&R
中文描述: DUAL LINE TRANSCEIVER, PQCC40
封裝: 6 X 6 MM, ROHS COMPLIANT, PLASTIC, QFN-40
文件頁數(shù): 4/25頁
文件大?。?/td> 945K
代理商: ISL3331IRZ-T
12
FN6361.0
May 20, 2008
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 (V)
SW
tHZ
X+1.5
GND
tLZ
X-1.5
VCC
tZH
X+1.5
GND
tZL
X-1.5
VCC
tZH(SHDN)
0+1.5
GND
tZL(SHDN)
0-1.5
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
50%
VOH
VOL
50%
tRPLH
A, B
SKEW = |tRPHL - tRPLH|
ISL3330, ISL3331
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