NXP Semiconductors
74HC257; 74HCT257
Quad 2-input multiplexer; 3-state
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
1.1
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
JEITA
SOT403-1
MO-153
L
Lp
Q
v
w
y
Z (1) θ
1
0.75 0.4
0.50 0.3
0.2
0.13
0.1
0.40
0.06
8o
0o
EUROPEAN
PROJECTION
ISSUE DATE
99-12-27
03-02-18
Fig 12. Package outline SOT403-1 (TSSOP16)
74HC_HCT257_5
Product data sheet
Rev. 05 — 13 January 2010
© NXP B.V. 2010. All rights reserved.
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