74F257ASCSCX NSC [National Semiconductor], 74F257ASCSCX Datasheet - Page 5

• Manufacturer Part Number: 74F257ASCSCX
• Description: Quad 2-Input Multiplexer with TRI-STATE Outputs
• Manufacturer: NSC [National Semiconductor]

Ordering Information
The device number is used to form part of a simplified purchasing code where the package type and temperature range are
defined as follows
Physical Dimensions
Temperature Range Family
Device Type
Package Code
74F
54F
P
D
F
L
S
SJ
e
e
e
e
e
e
e
e
Plastic DIP
Ceramic DIP
Flatpak
Leadless Ceramic Chip Carrier (LCC)
Small Outline SOIC JEDEC
Small Outline SOIC EIAJ
Commercial
Military
inches (millimeters)
20-Lead Ceramic Leadless Chip Carrier (L)
NS Package Number E20A
74F
257A
5
S
C
X
Special Variations
Temperature Range
C
M
QB
e
X
e
e
e
Commercial (0 C to
Military (
Devices shipped in 13 reels
Military grade with
environmental and burn-in
processing shipped in tubes
b
55 C to
a
a
125 C)
70 C)