Sam4s ER-5200 Service Manual page 42

6 Reference Information
6-1 Semiconductor Base Diagram
6-1-3 Logic ICs
DATA
INPUTS
OUTPUT ENABLE
6-1-4 Other ICs
6-6
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2 19
D0
3 18
D1
4 17
D2
5 16
D3
6 15
D4
7 14
D5
8 13
D6
9 12
D7
11
CLOCK
1
DS008759-1
Figure 6-11 Transceivers DS75176B Specification
Figure 6-12 Motor Driver LB1838 Specification
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Q0
Q1
Q2
NONINVERTING
Q3
OUTPUTS
Q4
Q5
Q6
Q7
PIN 20 = V
CC
PIN 10 = GND
Figure 6-10 74HC574
F unction T ables
DRIVER
INPUT ENABLE
D DE
H H
L H
X L
RECEIVER
DIFFERENTIAL I NPUTS
A±B
V ID >= 0.2 V
- 0.2 V < V ID < 0.2 V
V ID
<= - 0.2 V
X
O pen
T ruth T able
IN 1, 2 ENA 1, 2
L H
H H
L L
H L
FUNCTION TABLE
Inputs Output
OE Clock D Q
L H H
L L L
L L,H, X No Change
H X X Z
X = Don't Care
Z = High Impedance
OUTPUTS
A B
H L
L H
Z Z
ENABLE OUTPUT
RE R
L H
L ?
L L
H Z
L ?
OUT 1, 3 OUT 2, 4
H L
L H
OFF OFF
OFF OFF
SAM4S ER-5200 Series
M ode
F orward
R everse
S tandby
S tandby