AM26LS32AC, AM26LS32AI, AM26LS33AC,

AM26LS32AM, AM26LS33AM

QUADRUPLE DIFFERENTIAL LINE RECEIVERS

SLLS115D – OCTOBER 1980 – REVISED MARCH 2002

D AM26LS32A Devices Meet or Exceed the

Requirements of ANSI TIA/EIA-422-B,

TIA/EIA-423-B, and ITU Recommendations

V.10 and V.11

D AM26LS32A Devices Have ±7-V

Common-Mode Range With

±200-mV

Sensitivity

D AM26LS33A Devices Have ±15-V

Common-Mode Range With

±500-mV

Sensitivity

D Input Hysteresis . . . 50 mV Typical

D Operate From a Single 5-V Supply

D Low-Power Schottky Circuitry

D 3-State Outputs

D Complementary Output-Enable Inputs

D Input Impedance . . . 12 kΩ Min

D Designed to Be Interchangeable With

Advanced Micro Devices AM26LS32

 and

AM26LS33



description

The AM26LS32A and AM26LS33A devices are

quadruple differential line receivers for balanced

and unbalanced digital data transmission. The

enable function is common to all four receivers

and offers a choice of active-high or active-low

input. The 3-state outputs permit connection

directly to a bus-organized system. Fail-safe

design ensures that, if the inputs are open, the

outputs always are high.

Compared to the AM26LS32 and the AM26LS33, the AM26LS32A and AM26LS33A incorporate an additional

stage of amplification to improve sensitivity. The input impedance has been increased, resulting in less loading

of the bus line. The additional stage has increased propagation delay; however, this does not affect

interchangeability in most applications.

The AM26LS32AC and AM26LS33AC are characterized for operation from 0

°C to 70°C. The AM26LS32AI is

characterized for operation from –40

°C to 85°C. The AM26LS32AM and AM26LS33AM are characterized for

operation over the full military temperature range of –55

°C to 125°C.

1

2

3

4

5

6

7

8

16

15

14

13

12

11

10

9

1B

1A

1Y

G

2Y

2A

2B

GND

VCC

4B

4A

4Y

G

3Y

3A

3B

AM26LS32AC . . . D, N, OR NS PACKAGE

AM26LS32AI, AM26LS33AC ...D OR N PACKAGE

AM26LS32AM, AM26LS33AM ...J PACKAGE

(TOP VIEW)

32 1 20 19

910 11 12 13

4

5

6

7

8

18

17

16

15

14

4A

4Y

NC

G

3Y

1Y

G

NC

2Y

2A

AM26LS32AM, AM26LS33AM . . . FK PACKAGE

(TOP VIEW)

NC – No internal connection