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IN74ACT193 Datasheet(PDF) 1 Page - Integral Corp.

Part No. IN74ACT193
Description  PRESETTABLE 4-BIT BINARY UP/DOWN COUNTER High-Speed Silicon-Gate CMOS
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Maker  INTEGRAL [Integral Corp.]
Homepage  http://www.iksemi.com/
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IN74ACT193 Datasheet(HTML) 1 Page - Integral Corp.

   
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IN74ACT193
1
PRESETTABLE 4-BIT BINARY UP/DOWN COUNTER
High-Speed Silicon-Gate CMOS
The IN74ACT193 is identical in pinout to the LS/ALS192,
HC/HCT192. The IN74ACT193 may be used as a level converter
for interfacing TTL or NMOS outputs to High Speed CMOS inputs.
The counter has two separate clock inputs, a Count Up Clock
and Count Down Clock inputs. The direction of counting is
determined by which input is clocked. The outputs change state
synchronous with the LOW-to-HIGH transitions on the clock
inputs. This counter may be preset by entering the desired data on
the P0, P1, P2, P3 input. When the Parallel Load input is taken
low the data is loaded independently of either clock input. This
feature allows the counters to be used as devide-by-n by
modifying the count lenght with the preset inputs. In addition the
counter can also be cleared. This is accomplished by inputting a
high on the Master Reset input. All 4 internal stages are set to low
independently of either clock input.Both a Terminal Count Down
(TCD) and Terminal Count Up (TCU) Outputs are provided to
enable cascading of both up and down counting functions. The
TCD output produces a negative going pulse when the counter
underflows and TCU outputs a pulse when the counter
overflows. The counter can be cascaded by connecting the
TCU and TCD outputs of one device to the Count Up Clock and
Count Down Clock inputs, respectively, of the next device.
• TTL/NMOS Compatible Input Levels
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 4.5 to 5.5 V
• Low Input Current: 1.0 µA; 0.1 µA @ 25°C
• Outputs Source/Sink 24 mA
ORDERING INFORMATION
IN74ACT193N Plastic
IN74ACT193D SOIC
TA = -40° to 85° C for all
packages
PIN ASSIGNMENT
LOGIC DIAGRAM
PIN 16 =VCC
PIN 8 = GND


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