54F253
54F253 is Dual 4-Input Multiplexer manufactured by National Semiconductor.
Description
The ’F253 is a dual 4-input multiplexer with TRI-STATE outputs It can select two bits of data from four sources using mon select inputs The output may be individually switched to a high impedance state with a HIGH on the respective Output Enable (OE) inputs allowing the outputs to interface directly with bus oriented systems
Features
Y Multifunction capability Y Non-inverting TRI-STATE outputs Y Guaranteed 4000V minimum ESD protection mercial 74F253PC
74F253SC (Note 1) 74F253SJ (Note 1)
Military 54F253DM (Note 2)
54F253FM (Note 2) 54F253LL (Note 2)
Package Number N16E J16A M16A M16D W16A E20A
Package Description
16-Lead (0 300 Wide) Molded Dual-In-Line 16-Lead Ceramic Dual-In-Line 16-Lead (0 150 Wide) Molded Small Outline JEDEC 16-Lead (0 300 Wide) Molded Small Outline EIAJ 16-Lead Cerpack 20-Lead Ceramic Leadless Chip Carrier Type C
Note 1 Devices also available in 13 reel Use suffix e SCX and SJX Note 2 Military grade device with environmental and burn-in processing Use suffix e DMQB FMQB and LMQB
Logic Symbols
Connection Diagrams
Pin Assignment for DIP SOIC and Flatpak
Pin Assignment for LCC
IEEE IEC
TL F 9505- 3
TL F 9505
- 1
TL F 9505
- 2
TL F 9505- 5 TRI-STATE is a registered trademark of National Semiconductor Corporation
C1995 National Semiconductor Corporation TL F 9505
RRD-B30M75 Printed in U S A
Unit Loading Fan Out
Pin Names
I0a
- I3a I0b
- I3b S0
- S1 OEa OEb Za Zb
Description
Side A Data Inputs Side B Data Inputs mon Select Inputs Side A Output Enable Input (Active LOW) Side B Output Enable Input (Active LOW) TRI-STATE Outputs
54F 74F
UL HIGH LOW
10 10 10 10 10 10 10 10 10 10 150 40(33 3)
Input IIH IIL Output IOH IOL
20 m A b0 6 m A 20 m A b0 6 m A 20 m A b0 6 m A 20 m A b0 6 m A 20 m A b0 6 m A b3 m A 24 m A (20 m A)
Functional Description
This device contains two identical 4-input multiplexers with TRI-STATE outputs They select two bits from four sources selected by mon Select inputs (S0 S1) The 4-input multiplexers have...