Bose FREESPACE 4400, Service Manual

Page: 94 / 107

94
Integrated Circuit Diagrams
74ACT573M, Octal D-Type Latch
PINOUT DIAGRAM PIN DESCRIPTION
TRUTH TABLE
X : Don’t care
Z : High Impedance
NOTE: Outputs are latched at the time when the input is taken LOW logic level
LOGIC DIAGRAM
PIN No SYMBOL NAME AND FUNCTION
1 OE 3 State Output Enable
Input (Active LOW)
2, 3, 4, 5, 6,
7, 8, 9
D0 to D7 Data Inputs
12, 13, 14,
15, 16, 17,
18, 19
Q0 to Q7 3-State Latch Outputs
11 LE Latch Enable Input
10 GND Ground (0V)
20 V
CC
Positive Supply Voltage
T U P T U O
S T U P N I
OE
Q D
E L
Z X X H
E G N A H C O N
X L L
L
L H L
H H
H L
IEC LOGIC SYMBOLS
74VHC132, Quad 2-Input Schmitt
NAND Gate
PINOUT DIAGRAM
IEC LOGIC SYMBOLS
Pin Description
Truth Table
PIN N° SYMBOL NAME AND FUNCTION
1, 4, 9, 12 1A to 4A Data Inputs
2, 5, 10, 13 1B to 4B Data Inputs
3, 6, 8, 11 1Y to 4Y Data Outputs
7 GND Ground (0V)
14
V
CC
Positive Supply Voltage
A B Y
L L H
L H H
H L H
H H L
BLOCK DIAGRAM
ADG409
1-OF-4
DECODER
S1A
S4B
DA
A0 A1 EN
DB
S4A
S1B
PINOUT DIAGRAM
TOP VIEW
(Not to Scale)
16
15
14
13
12
11
10
9
1
2
3
4
5
6
7
8
A0
EN
V
SS
S1A
S2A
S3A
S4A
DA
A1
GND
V
DD
S1B
S2B
S3B
S4B
DB
ADG409
ADG409 Truth Table
ON SWITCH
Al A0 EN
X X 0 NONE
0 0 1 1
0 1 1 2
1 0 1 3
1 1 1 4
PAIR
ADG409, Analog Multiplexer
ADG452BRZ, SPST Switch
BLOCK DIAGRAM
IN1
S1
D1
IN2
S2
D2
IN3
S3
D3
IN4
S4
D4
ADG452
SWITCHES SHOWN FOR A LOGIC 1 INPUT
IN1
1
D1
2
S1
3
V
SS
4
IN2
16
D2
15
S2
14
V
DD
13
GND 5 V
L
12
S4
6
S3
11
D4
7
D3
10
IN4
8
IN3
9
ADG452
TOP VIEW
Pin Function Descriptions
Pin No. Mnemonic Description
1 IN1 Logic Control Input.
2 D1 Drain Terminal. Can be an input or an output.
3 S1 Source Terminal. Can be an input or an output.
4 V
SS
Most Negative Power Supply Potential in Dual Supplies.
In single-supply applications, it can be connected to GND.
5 GND Ground (0 V) Reference.
6 S4 Source Terminal. Can be an input or an output.
7 D4 Drain Terminal. Can be an input or an output.
8 IN4 Logic Control Input.
9 IN3 Logic Control Input.
10 D3 Drain Terminal. Can be an input or an output.
11 S3 Source Terminal. Can be an input or an output.
12 V
L
Logic Power Supply (5 V).
13 V
DD
Most Positive Power Supply Potential.
14 S2 Source Terminal. Can be an input or an output.
15 D2 Drain Terminal. Can be an input or an output.
16 IN2 Logic Control Input.
Truth Table - ADG452
ADG452 In Switch Condition
1 On
0 Off
PINOUT DIAGRAM