ADM1490EBRMZ Analog Devices Inc, ADM1490EBRMZ Datasheet - Page 6

• Manufacturer Part Number: ADM1490EBRMZ
• Description: 5V Full Duplex RS-485 Tranceiver I.C.
• Manufacturer: Analog Devices Inc
• Type: Transceiverr

Specifications of ADM1490EBRMZ

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADM1490E/ADM1491E
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
Table 5. Pin Function Descriptions
8-Lead SOIC,
8-Lead MSOP
N/A
2
N/A
N/A
3
4
N/A
N/A
5
6
7
8
1
N/A
1
N/A indicates not applicable.
Figure 7. 8-Lead MSOP and 8-Lead SOIC
GND
1
1
1
1
1
1
V
RO
CC
DI
1
2
3
4
Pin Configuration
ADM1490E
(Not to Scale)
TOP VIEW
14-Lead SOIC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Pin No.
8
7
6
5
A
B
Z
Y
10-Lead MSOP
N/A
1
2
3
4
5
N/A
N/A
6
7
8
9
10
N/A
1
1
1
1
1
B
Mnemonic
NC
RO
RE
DE
DI
GND
GND
NC
Y
Z
A
V
V
CC
CC
Figure 8. 14-Lead, Narrow Body SOIC
GND
GND
NC
RO
RE
DE
DI
Rev. C | Page 6 of 16
1
2
3
4
5
6
7
NC = NO CONNECT
Pin Configuration
ADM1491E
(Not to Scale)
TOP VIEW
Description
No Connect. This pin is available on the 14-lead SOIC only.
Receiver Output.
Receiver Output Enable. A low level enables the receiver output, whereas
a high level places the receiver output in a high impedance state.
Driver Output Enable. A logic high enables the differential driver outputs,
A and B, whereas a logic low places the differential driver outputs in a
high impedance state.
Driver Input. When the driver is enabled, a logic low on DI forces Pin A low
and Pin B high, whereas a logic high on DI forces Pin A high and Pin B low.
Ground.
Ground. This pin is available on the 14-lead SOIC only.
No Connect. This pin is available on the 14-lead SOIC only.
Noninverting Driver Output Y.
Inverting Driver Output Z.
Inverting Receiver Input B.
Noninverting Receiver Input A.
Power Supply (5 V ± 5%).
Power Supply (5 V ± 5%). This pin is available on the 14-lead SOIC only.
14
13
12
11
10
9
8
V
V
A
B
Z
Y
NC
CC
CC
GND
RO
RE
DE
DI
Figure 9. 10-Lead MSOP
1
2
3
4
5
Pin Configuration
ADM1491E
(Not to Scale)
TOP VIEW
10
9
8
7
6
V
A
B
Z
Y
CC