ADM3491-1
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
V
CC 1
NC
2
3
4
5
6
7
8
16
15
Data Sheet
NC
A
B
NC
Z
Y
NC
05234-003
NC
1
RO
2
RE
3
DE
4
DI
5
GND
6
GND
7
14
13
V
CC
V
CC
A
B
Z
Y
05234-002
RO
RE
DE
DI
NC
GND
ADM3491-1
TOP VIEW
(Not to Scale)
14
13
12
11
10
9
ADM3491-1
TOP VIEW
(Not to Scale)
12
11
10
9
8
NC
NC
NC = NO CONNECT
NC = NO CONNECT
Figure 2. 14-Lead PDIP and 14-Lead SOIC Pin Configuration
Figure 3. 16-Lead TSSOP Pin Configuration
Table 5. Pin Function Descriptions
Pin Number
PDIP/SOIC
TSSOP
1, 8
2, 7, 9, 10, 13, 16
2
3
4
5
6, 7
9
10
11
12
13, 14
3
4
5
6
8
11
12
14
15
1
Mnemonic
NC
RO
RE
DE
DI
GND
Y
Z
B
A
V
CC
Description
No Connect.
Receiver Output. High when A > B by 200 mV; low when A < B by 200 mV.
Receiver Output Enable. When RE is low, the receiver output RO is enabled. When RE is high, the
output is high impedance. If RE is high and DE is low, the
enters a shutdown state.
Driver Output Enable. A high level enables the driver differential outputs, Y and Z. A low level
places the part in a high impedance state.
Driver Input. When the driver is enabled, a logic low on DI forces Y low and Z high; a logic high
on DI forces Y high and Z low.
Ground Connection, 0 V.
Noninverting Driver Output Y.
Inverting Driver Output Z.
Inverting Receiver Input B.
Noninverting Receiver Input A.
Power Supply, 3.3 V ± 0.3 V.
Rev. C | Page 6 of 16
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