MAX1490EBCPG+ Maxim Integrated Products, MAX1490EBCPG+ Datasheet - Page 13

• Manufacturer Part Number: MAX1490EBCPG+
• Description: IC RS485/RS422 DATA INTRFC 24DIP
• Manufacturer: Maxim Integrated Products
• Type: Transceiverr

Specifications of MAX1490EBCPG+

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Through Hole
• Package / Case: 24-DIP (0.600", 15.24mm)
• Data Rate: 250 Kbps
• Operating Supply Voltage: 5 V
• Supply Current: 130 mA
• Operating Temperature Range: 0 C to + 70 C
• Maximum Power Dissipation: 696 mW
• Mounting Style: Through Hole
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 7. Driver Propagation Delays and Transition Times
Figure 9. Times to/from Shutdown
____________________________________________________Test Circuits (continued)
V
SD
DI
V
CC_
2.4V
0.8V
A, B
´
DIFF
A, B
V
OL
0
- 0.4V
±15kV ESD-Protected, Isolated RS-485/RS-422
-V
V
0
B
A
O
0
O
V
V
1.6V
1/2 V
O
CC_
t
R
10%
2
- 0.4V
O
______________________________________________________________________________________
2.3V
2.3V
t
t
ZL(SHDN)
ZH(SHDN)
90%
t
OUTPUT NORMALLY HIGH
PLH
OUTPUT NORMALLY LOW
V
t
SKEW =
DIFF
= V (A) - V (B)
t
PLH
- t
t
t
PHL
SHDN
SHDN
Figure 6. Driver Timing Test Load
t
PHL

t
F
90%
UNDER TEST
OUTPUT
V
1.6V
CC_
V
V
OL
OH
2
- 0.4V
10%
+ 0.5V
- 0.5V
1/2 V
O
C
L
500Ω
Figure 8. Driver Enable and Disable Times
Figure 10. Receiver Propagation Delays
V
DE
V
CC_
A
´
RO
- V
RO V
A, B
A, B
-0.4V
V
B
OL
0
0
V
-V
V
V
V
OH
OH
OL
OL
ID
ID
V
CC_
S1
S2
2
- 0.4V
0
Data Interfaces
ISO V
2.3V
Switching Waveforms
2.3V
CC
t
1.5V
1.5V
t
ZH
ZL
_
OUTPUT NORMALLY HIGH
OUTPUT NORMALLY LOW
t
t
PHL
PLH
MAX1490EA/MAX1490EB
MAX1480EA/MAX1480EC
INPUT
OUTPUT
OUTPUT
t
SKEW
t
= t
t
HZ
LZ
PLH -
t
V
1.5V
1.5V
PHL
CC_
0

V
V
2
- 0.4V
OL
OH
+ 0.5V
- 0.5V
t
t
PHL
PLH
13