Datasheet

74HC_HCT157 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet Rev. 7 — 21 January 2015 3 of 19
NXP Semiconductors
74HC157; 74HCT157
Quad 2-input multiplexer
5. Pinning information
5.1 Pinning
Fig 3. Logic symbol Fig 4. IEC logic symbol
PQD
08/7,3/(;(5
2873876
6(/(&725
<
<
<
<




6









(
,
,
,
,
,
,
,
,
PQD




*

(1

08;










(1) This is not a supply pin. The substrate is attached to this
pad using conductive die attach material. There is no
electrical or mechanical requirement to solder this pad.
However, if it is soldered, the solder land should remain
floating or be connected to GND.
Fig 5. Pin configuration DIP16, SO16, (T)SSOP16 Fig 6. Pin configuration DHVQFN16
+&
+&7
69
&&
, (
, ,
< ,
, <
, ,
< ,
*1' <
DDQ
















DDQ
< ,
, ,
, <
*1'

< ,
, ,
, (
*1'
<
6 9
&&
7UDQVSDUHQWWRSYLHZ
 
 
 
 
 
 
 


WHUPLQDO
LQGH[DUHD
+&
+&7