NTE8374
Integrated Circuit
Seven鈥揝egment Latch/Decoder/Driver for Common Anode LED鈥檚
Description:
The NTE 8374 is a 7鈥搒egment decoder driver in a 16鈥揕ead DIP type package incorporating input
latches and output circuits to directly drive common anode LED displays.
Features:
D
High speed input latches for data storage
D
15mA constant current sink capability to directly drive common anode led displays
D
Increases incandescent display life
D
Active low latch enable for easy interface with MSI circuits
D
Data input loading essentially zero when latch disabled
D
Automatic ripple blanking for suppression of leading and/or trailing鈥揺dge zeroes.
Input Loading/Fan鈥揙ut:
Description
Address (Data) Inputs,
Latch Enable Input (Active LOW)
Ripple Blanking Input (Active LOW)
Ripple Blanking as Output (Active LOW)
Ripple Blanking as Input (Active LOW)
Constant Current Outputs (Active LOW)
Pin Name
A
0
鈥?A
3
L
E
RBI
RBO
RBO
a鈥揼
High
1.0
0.5
0.5
1.0
鈥?/div>
Open Collector
Low
0.25 (Note 1)
0.25
0.25
0.5
0.75
15mA
Note 1. Except Loading is 10碌A(chǔ) @ 0.4V when L
E
is HIGH.
Absolute Maximum Ratings:
Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?.5V to +5.5V
Input Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?0mA to +5.0mA
Voltage Applied to Outputs in HIGH State:
Standard TTL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?.5V to V
CC
value
Open Collector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?.5V to +7.0V
V
CC
Pin Potential to GND Pin . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?.5V to +7.0V
Current Applied to Output in LOW State (Max) . . . . . . . . . . . . . . . . . . . . . . . . . . . . twice the rated I
OL
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +150擄C
Ambient Temperature Range Under Bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +125擄C
Junction Temperature Range Under Bias . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 鈥?5擄 to +175擄C
Recommended Operating Conditions:
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +4.75V to +5.25V
Free Air Ambient Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0擄C to +70擄C
1
2
3
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