Physio Control LIFEPAK 9 - Page 183

Component Reference Diagrams 6
|
TYPE
IC
NUMBER
LOCATION
Rer.
Des.
Buffer
À
74HCT244
Main
(Al)
Uli,
U12,
U15
CONNECTION
DIAGRAM
FUNCTIONAL
DIAGRAM
FUNCTION
TABLE
_
(ASTA
vee
2A4
ova
Τὸ
А
17
26
2A
№
πι
243
w
L
L
LOL.
LOL
19
[26
2A2
2Y2
L
H
H
L
H
H
1A1
em
2
H
L
Z
H
L
Z
2A1
2Y1
H
H
7
H
H
7
18
1Y1
56%
PE
gs
4M
1Y4
H
=
High
Level
17
İm
24
L
=
LowLevel
1A2
alla
|
1A3
1v3
Z
=
High
Impedance
output
state
16
hum
12
1A2
1Y2
2Y3
ls
propos
:
15
no
2A3
1A3
am
6
4
14
1Y3
o—Do—
—
2Y2
«ый
7
—
м
Mm
13262
1
12
1Y
-
ws
ini
2Y1
amo
mr
CoD
Figure
6-1
Buffer
U
um
2A1
(©
GND
ao
TYPE
IC
NUMBER
LOCATION
REF.
DES.
Smartwatch
RAM
DS1235Y
Main
(Al)
U28A,
U28B
PIN CONFIGURATION
AST
0
©
VNO
n
à
wah
一
GND
NOTE:
ALL
PINS
PASS
THROUGH
EXCEPT
PINS
20
AND
28
Figure
6-2
Smartwatch
RAM
©
August
1993
Physio-Control
All
Rights
Reserved
6-3