Philips Semiconductors
Quad 2-input multiplexer; 3-state
Product specification
74AHC257;
74AHCT257
TSSOP16: plastic thin shrink small outline package; 16 leads; body width 4.4 mm
SOT403-1
D
c
y
Z
16
9
E
A
X
HE
vM A
pin 1 index
1
e
8
wM
bp
A2
A1
Q
(A 3)
A
θ
Lp
L
detail X
0
2.5
5 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A
max.
A1
A2
A3
bp
c
D (1) E (2)
e
HE
mm
1.10
0.15
0.05
0.95
0.80
0.25
0.30
0.19
0.2
0.1
5.1
4.9
4.5
4.3
0.65
6.6
6.2
Notes
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.
2. Plastic interlead protrusions of 0.25 mm maximum per side are not included.
OUTLINE
VERSION
IEC
REFERENCES
JEDEC
EIAJ
SOT403-1
MO-153
L
Lp
Q
1.0
0.75
0.50
0.4
0.3
v
w
y
Z (1) θ
0.2 0.13 0.1
0.40
0.06
8o
0o
EUROPEAN
PROJECTION
ISSUE DATE
95-04-04
99-12-27
2000 Apr 03
13