PvtSQUELCHTM CTCSS Encoder/Decoder
9
MX375
(A) Explanation of Load/Latch function in Serial and Parallel Modes
Load Configuration
Result
Load/Latch
Parallel
Parallel
1
1 - 0
0
Transparent, the data acts directly
Latches present data in
Parallel
No further changes except to allow serial mode selection
No change while serial data train is loaded
Loaded serial data is latched
Serial (data loading)
Serial (data loaded)
0
0 - 1 - 0
(B) Explanation of Control Input
Load Configuration
Control
Load/Latch
RX/ TX ,Private Enable
Latched
Parallel
Parallel
Parallel
Serial
0
0
0
1
0
1
1
Transparent
X
0 - 1 - 0
X
Transparent
Serial Load
Serial
Transparent
Table 5: Load/Latch and Control Input Function
Notes:
1. “0 - 1 - 0” is a strobe pulse as shown in Figure 4 and Figure 5.
2. “X” denotes any logical state.
6. Performance Specification
6.1 Electrical Performance
Absolute Maximum Ratings
Exceeding these maximum ratings can result in damage to the device.
General
Min.
-0.3
-0.3
Typ.
Max.
Units
Supply Voltage
Input Voltage at any pin
7.0
V
V
(V + 0.3)
DD
Current
V
-30
-30
-20
30
30
20
mA
mA
mA
DD
SS
V
Any other pin
J / P / LH / LH8 Packages
Total Device Dissipation at T
25°C
800
mW
AMB
Derating above 25°C
Operating Temperature
Storage Temperature
10
85°
mW/°C above 25°C
-40°
-55°
C
C
125°
Table 6: Absolute Maximum Ratings
© 1997 MX•COM Inc.
www.mxcom.com Tele: 800 638-5577 910 744-5050 Fax: 910 744-5054
Doc. # 20480026.007
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