AM79C940 datasheet(11/144 Pages) AMD

Part #	AM79C940

Description	Media Access Controller for Ethernet (MACE??

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Manufacturer	AMD [Advanced Micro Devices]

Direct Link	http://www.amd.com

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Am79C940

11

PIN/PACKAGE SUMMARY (PLCC)

PLCC Pin #

Pin Name

Pin Function

1

DXCVR

Disable Transceiver

2

EDSEL

Edge Select

3DVSS

Digital Ground

4

TXDAT+

Transmit Data +

5TXDAT–

Transmit Data –

6DVSS

Digital Ground

7

STDCLK

Serial Transmit Data Clock

8

TXEN/TXEN

Transmit Enable

9

CLSN

Collision

10

RXDAT

Receive Data

11

RXCRS

Receive Carrier Sense

12

SRDCLK

Serial Receive Data Clock

13

EAM/R

External Address Match/Reject

14

SRD

Serial Receive Data

15

SF/BD

Start Frame/Byte Delimiter

16

RESET

Reset

17

SLEEP

Sleep Mode

18

DVDD

Digital Power

19

INTR

Interrupt

20

TC

Timing Control

21

DBUS0

Data Bus0

22

DVSS

Digital Ground

23

DBUS1

Data Bus1

24

DBUS2

Data Bus2

25

DBUS3

Data Bus3

26

DBUS4

Data Bus4

27

DVSS

Digital Ground

28

DBUS5

Data Bus5

29

DBUS6

Data Bus6

30

DBUS7

Data Bus7

31

DBUS8

Data Bus8

32

DBUS9

Data Bus9

33

DBUS10

Data Bus10

34

DBUS11

Data Bus11

35

DBUS12

Data Bus12

36

DBUS13

Data Bus13

37

DVDD

Digital Power

38

DBUS14

Data Bus14

39

DBUS15

Data Bus15

40

DVSS

Digital Ground

41

EOF

End Of Frame

42

DTV

Data Transfer Valid

43

FDS

FIFO Data Strobe

44

BE0

Byte Enable0

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Similar Description - AM79C940

Manufacturer	Part #	Datasheet	Description
Advanced Micro Devices	AM79C940	914Kb / 122P	Media Access Controller for Ethernet (MACE)
Rochester Electronics	79C940	630Kb / 13P	Media Access Controller for Ethernet (MACE) 84-pin PLCC and 100-pin PQFP Packages
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