Anyone have pinout of 74118 TTL chip?

[Matt J. McCullar]

Our old Texas Instruments just hop right over the number SN74118, yet we
have this chip right in front of us. A web search indicates it's some sort
of RS latch, but we cannot find the pinout for testing purposes. Any help
would be greatly appreciated.

Thanks!

Matt J. McCullar
Arlington, TX

 

[Rich.Andrews]

Our old Texas Instruments just hop right over the number SN74118, yet we
have this chip right in front of us. A web search indicates it's some
sort of RS latch, but we cannot find the pinout for testing purposes.
Any help would be greatly appreciated.

Thanks!

Matt J. McCullar
Arlington, TX

Matt,

I think this may give you a clue.

part 74118 : default dil16 {
newattr "$comment" = "Hex Set-Reset Latch" ;
pin (res,s1,q1,s2,q2,s3,q3,s4,q4,s5,q5,s6,q6) ;
net "vss" : (8) ;
net "vcc" : (16) ;
xlat (res,s1,q1,s2,q2,s3,q3,s4,q4,s5,q5,s6,q6)
to ( 9, 1, 2, 4, 3, 6, 5,10,11,12,13,15,14) ;
swap ( [ 9,
( 1, 2),
( 4, 3),
( 6, 5),
(10,11),
(12,13),
(15,14) ] ) ;
}


r

 

[Matt J. McCullar]

Thanks! Problem is, I'm not certain what all of that means, particulary the
"swap" command. Does that mean I have to re-arrange the pinout definitions
in the previous line, or something? I'm not a programmer, unfortunately.

 

[El Meda]

Thanks! Problem is, I'm not certain what all of that means, particulary the
"swap" command. Does that mean I have to re-arrange the pinout definitions
in the previous line, or something? I'm not a programmer, unfortunately.

q6 s5 s4
s6 q5 q4
Vcc res
| | | | | | | |
o_o_o_o o_o_o_o
| 74118 |
| _ _ _ _ _ _ |
o o o o o o o o
| | | | | | | |
Vss
s1 q2 q3
q1 s2 s3

.-----------.
| |
S ----- |
| --- Q
| |
| |
Res ----- |
| |
(Common to all 6) '-----------'

Created by Andy´s ASCII-Circuit v1.24.140803 Beta www.tech-chat.de

 

[WDino]

For any pinouts of those type of ICs, try:

www.qsl.net/yo5ofh/data_sheets/data_sheets_page.htm