Datasheet

PCA9555_8 © NXP B.V. 2009. All rights reserved.
Product data sheet Rev. 08 — 22 October 2009 27 of 34
NXP Semiconductors
PCA9555
16-bit I
2
C-bus and SMBus I/O port with interrupt
Fig 31. Package outline SOT994-1 (HWQFN24)
REFERENCES
OUTLINE
VERSION
EUROPEAN
PROJECTION
ISSUE DATE
IEC JEDEC JEITA
SOT994-1 - - -
MO-220
- - -
SOT994-1
07-02-07
07-03-03
Note
1. Plastic or metal protrusions of 0.075 mm maximum per side are not included.
UNIT
A
(1)
max
mm 0.8
0.05
0.00
0.30
0.18
4.1
3.9
2.25
1.95
4.1
3.9
2.25
1.95
2.5 2.5 0.1
A
1
DIMENSIONS (mm are the original dimensions)
HWQFN24: plastic thermal enhanced very very thin quad flat package; no leads;
24 terminals; body 4 x 4 x 0.75 mm
0 2.5 5 mm
scale
b c
0.2
D
(1)
D
h
E
(1)
E
h
e
0.5
e
1
e
2
L
0.5
0.3
v w
0.05
y
0.05
y
1
0.1
B A
terminal 1
index area
E
D
detail X
A
A
1
c
b
e
2
e
1
e
e
1/2 e
1/2 e
AC
B
∅ v
M
C∅ w
M
terminal 1
index area
6
13
127
18
24 19
1
L
E
h
D
h
C
y
C
y
1
X