MAX14780EESA+T Maxim Integrated, MAX14780EESA+T Datasheet - Page 6

• Manufacturer Part Number: MAX14780EESA+T
• Description: RS-422/RS-485 Interface IC PROFIBUS RS-485 Transceiver
• Manufacturer: Maxim Integrated

Specifications of MAX14780EESA+T

• Data Rate: 500 Kbps
• Operating Supply Voltage: 5 V
• Supply Current: 1.8 mA
• Operating Temperature Range: - 40 C to + 85 C
• Mounting Style: SMD/SMT
• Number Of Drivers: 1
• Number Of Receivers: 1
• Product: RS-422/RS-485 Combination

Figure 6. Receiver Propagation Delay Test Circuit
Figure 8. Receiver Enable and Disable Times
+5.0V, ±30kV ESD-Protected, Fail-Safe,
Hot-Swap, RS-485/RS-422 Transceiver
6
______________________________________________________________________________________
RO
RE
RO
RE
50%
0.25V
ATE
V
t
10%
RHZ
CC
/2
S2 CLOSED
V
V
S1 OPEN
S3
V
S2 CLOSED
ID
+1.5V
S1 OPEN
S3
-1.5V
= +1.5V
= +1.5V
B
A
S3
GENERATOR
R
t
RZH
RECEIVER
, t
OUTPUT
RZH(SHDN)
V
ID
V
OH
/ 2
Test Circuits and Waveforms (continued)
V
0
V
0
50Ω
CC
OH
V
0
V
0
CC
OH
Figure 7. Receiver Propagation Delays
C
15pF
RO
L
RO
A
B
RE
1kΩ
RO
RE
THE RISE TIME AND FALL TIME OF INPUTS A AND B < 4ns
V
V
OH
OL
50%
10%
t
RLZ
V
CC
/2
S1 CLOSED
V
S1
S2
S2 OPEN
S3
V
= -1.5V
S1 CLOSED
CC
V
0.25V
S2 OPEN
S3
t
RPLH
/2
= -1.5V
t
RZL
, t
V
RZL(SHDN)
CC
V
CC
(V
/2
OL
+ V
CC
)/2
V
0
V
V
CC
CC
OL
t
RPHL
V
0
V
V
CC
CC
OL
+1V
-1V