Philips Semiconductors Linear Products
Product specification
Addressable relay driver
NE/SA5090
DESCRIPTION
The NE/SA5090 addressable relay driver is a high-current latched
driver, similar in function to the 9934 address decoder. The device
has 8 open-collector Darlington power outputs, each capable of
150mA load current. The outputs are turned on or off by respectively
loading a logic 鈥?鈥?or logic 鈥?鈥?into the device data input. The
required output is defined by a 3-bit address. The device must be
enabled by a CE input line which also serves the function of further
address decoding. A common clear input, CLR, turns all outputs off
when a logic 鈥?鈥?is applied. The device is packaged in a 16-pin
plastic or Cerdip package.
PIN CONFIGURATION
D
1
, N Packages
A
0
1
A
1
2
A
2
3
Q
0
4
Q
1
5
Q
2
6
Q
3
7
16
15
14
13
12
11
10
9
V
CC
CLR
CE
D
Q
7
Q
6
Q
5
Q
4
FEATURES
GND 8
鈥?/div>
8 high-current outputs
鈥?/div>
Low-loading bus-compatible inputs
鈥?/div>
Power-on clear ensures safe operation
鈥?/div>
Will operate in addressable or demultiplex mode
鈥?/div>
Allows random (addressed) data entry
鈥?/div>
Easily expandable
鈥?/div>
Pin-compatible with 9334 (Siliconix or Fairchild)
TOP VIEW
NOTE:
1. SOL - Released in Large SO package only.
APPLICATIONS
鈥?/div>
Relay driver
鈥?/div>
Indicator lamp driver
鈥?/div>
Triac trigger
鈥?/div>
LED display digit driver
鈥?/div>
Stepper motor driver
BLOCK DIAGRAM
CLR
LATCH
LATCH
LATCH
LATCH
A
1
1鈥揙F鈥?
DECODER
CONTROL
GATE
LATCH
LATCH
LATCH
LATCH
Q
0
Q
1
Q
2
Q
3
Q
4
Q
5
Q
6
Q
7
CE
A
0
A
2
D
INPUT STAGE
V
CC
OUTPUT STAGE
August 31, 1994
512
853-0892 13721
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