MAX3490ESA Maxim Integrated Products, MAX3490ESA Datasheet - Page 6

• Manufacturer Part Number: MAX3490ESA
• Description: RS-422/RS-485 Interface IC
• Manufacturer: Maxim Integrated Products

Specifications of MAX3490ESA

• Lead Free Status / Rohs Status: No

3.3V-Powered, 10Mbps and Slew-Rate-Limited
True RS-485/RS-422 Transceivers
6
_____________________________Typical Operating Characteristics (continued)
______________________________________________________________Pin Description
MAX3483/
MAX3485/
MAX3486
_______________________________________________________________________________________
—
—
—
—
—
1
2
3
4
5
6
7
8
1.2
1.1
1.0
0.9
0.8
0.7
MAX3488/
MAX3490
-40
PIN
—
—
—
—
—
2
3
4
5
6
8
7
1
-20
DE = 0, RE = 0
vs. TEMPERATURE
SUPPLY CURRENT
0
TEMPERATURE (°C)
MAX3491
20
13, 14
6, 7
1, 8
10
12
11
—
—
2
3
4
5
9
40
DE = V
X = DON’T CARE
60
CC
, RE = X
NAME
NAME
GND
80
N.C.
V
RO
–
RE
DE
DI
A
A
B
B
Y
Z
CC
100
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 RE is low; RO is high imped-
ance when RE is high. If RE is high and DE is low, the device will enter a
low-power shutdown mode.
Driver Output Enable. The driver outputs are enabled by bringing DE high.
They are high impedance when DE is low. If RE is high and DE is low, the
device will enter a low-power shutdown mode. If the driver outputs are
enabled, the parts function as line drivers. While they are high impedance,
they function as line receivers if RE is low.
Driver Input. A low on DI forces output Y low and output 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: 3.0V ≤ V
No Connect—not internally connected
100
90
80
70
60
50
40
30
20
10
0
-40
CC
-20
≤ 3.6V
SHUTDOWN CURRENT
FUNCTION
FUNCTION
vs. TEMPERATURE
0
TEMPERATURE (°C)
20
40
60
80
100