MAX487ECSA-T Maxim Integrated, MAX487ECSA-T Datasheet - Page 7

• Manufacturer Part Number: MAX487ECSA-T
• Description: RS-422/RS-485 Interface IC
• Manufacturer: Maxim Integrated

Specifications of MAX487ECSA-T

• Data Rate: 250 Kbps
• Operating Supply Voltage: 4.75 V to 5.25 V
• Supply Current: 0.4 mA
• Operating Temperature Range: 0 C to + 70 C
• Mounting Style: SMD/SMT
• Input Voltage: 4.75 V to 5.25 V
• Maximum Power Dissipation: 727 mW
• Output Voltage: - 8 V to + 12.5 V
• Product: RS-422/RS-485 Combination
• Propagation Delay Time Ns: 250 ns

Maxim Integrated
______________________________________________________________Pin Description
MAX481E/MAX483E
MAX485E/MAX487E
MAX1487E
—
—
—
—
—
1
2
3
4
5
6
7
8
±15kV ESD-Protected, Slew-Rate-Limited,
Low-Power, RS-485/RS-422 Transceivers
PIN
MAX488E
MAX490E
—
—
—
—
—
2
3
4
5
6
8
7
1
MAX489E
MAX491E
1, 8, 13
MAX487E–MAX491E/MAX1487E
6, 7
10
12
11
14
—
—
2
3
4
5
9
NAME
GND
N.C.
V
RO
DE
–
R
—
DI
A
A
B
B
CC
Y
Z
E
–
Receiver Output: If A > B by 200mV, RO will be high;
If A < B by 200mV, RO will be low.
Receiver Output Enable. RO is enabled when
low; RO is high impedance when
Driver Output Enable. The driver outputs, Y and Z, are
enabled by bringing DE high. They are high imped-
ance when DE is low. If the driver outputs are enabled,
the parts function as line drivers. While they are high
impedance, they function as line receivers if
Driver Input. A low on DI forces output Y low and out-
put Z high. Similarly, a high on DI forces output Y high
and output Z low.
Ground
Noninverting Driver Output
Inverting Driver Output
Noninverting Receiver Input and Noninverting Driver
Output
Noninverting Receiver Input
Inverting Receiver Input and Inverting Driver Output
Inverting Receiver Input
Positive Supply: 4.75V ≤ V
No Connect—not internally connected
FUNCTION
CC
≤ 5.25V
–
R
—
E
–
is high.
–
R
—
E
–
–
R
—
is low.
E
–
is
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