ADM2582E/ADM2587E

Rev. 0 | Page 7 of 20

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

20

19

A

18

B

17

16

Z

15

14

Y

13

12

11

NOTES

1. PIN 12 AND PIN 19 MUST BE

CONNECTED EXTERNALLY.

ADM2582E

ADM2587E

TOP VIEW

(Not to Scale)

Figure 2. Pin Configuration

Table 10. Pin Function Description

Pin No.

Mnemonic

Description

1

Ground, Logic Side.

2

Logic Side Power Supply. It is recommended that a 0.1 μF and a 10 μF decoupling capacitor be fitted between

Pin 2 and Pin 1.

3

Ground, Logic Side.

4

RxD

Receiver Output Data. This output is high when (A − B) > 200 mV and low when (A − B) < –200 mV.

The output is tristated when the receiver is disabled, that is, when RE is driven high.

5

RE

Receiver Enable Input. This is an active-low input. Driving this input low enables the receiver; driving it

high disables the receiver.

6

DE

Driver Enable Input. Driving this input high enables the driver; driving it low disables the driver.

7

TxD

Driver Input. Data to be transmitted by the driver is applied to this input.

8

Logic Side Power Supply. It is recommended that a 0.1 μF and a 0.01 μF decoupling capacitor be fitted between

Pin 8 and Pin 7.

9

Ground, Logic Side.

10

Ground, Logic Side.

11

Ground, Bus Side.

12

capacitor of 10 μF and a decoupling capacitor of 0.1 μF be fitted between Pin 12 and Pin 11.

13

Y

Driver Noninverting Output

14

Ground, Bus Side.

15

Z

Driver Inverting Output

16

Ground, Bus Side.

17

B

Receiver Inverting Input.

18

A

Receiver Noninverting Input.

19

0.1 μF and a 0.01 μF decoupling capacitor be fitted between Pin 19 and Pin 20.

20

Ground, Bus Side.