KK74HC393A 반도체 회로 부품 판매점
Dual 4-Stage Binary Ripple Counter
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 KODENSHI KOREA |
TECHNICAL DATA
Dual 4-Stage Binary Ripple Counter
High-Performance Silicon-Gate CMOS
KK74HC393A
The KK74HC393A is identical in pinout to the LS/ALS393. The
device inputs are compatible with standard CMOS outputs; with pullup
resistors, they are compatible with LS/ALSTTL outputs.
This device consists of two independent 4-bit binary ripple counters
with parallel outputs from each counter stage. A÷256 counter can be
obtained by cascading the two binary counters.
Internal flip-flops are triggered by high-to-low transitions of the clock
input. Reset for the counters is asynchronous and active-high. State
changes of the Q outputs do not occur simultaneously because of internal
ripple delays. Therefore, decoded output signals are subject to decoding
spikes and should not be used as clocks or as strobes except when gated
with the Clock of the KK74HC393A.
• Outputs Directly Interface to CMOS, NMOS, and TTL
• Operating Voltage Range: 2.0 to 6.0 V
• Low Input Current: 1.0 µA
• High Noise Immunity Characteristic of CMOS Devices
ORDERING INFORMATION
KK74HC393AN Plastic
KK74HC393AD SOIC
TA = -55° to 125° C for all packages
PIN ASSIGNMENT
LOGIC DIAGRAM
PIN 14 =VCC
PIN 7 = GND
FUNCTION TABLE
Inputs
Clock Reset
XH
HL
LL
L
L
X = don’t care
Outputs
L
No Change
No Change
No Change
Advance to
Next State
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1
KK74HC393A
MAXIMUM RATINGS*
Symbol
Parameter
Value
VCC
VIN
VOUT
IIN
IOUT
ICC
PD
DC Supply Voltage (Referenced to GND)
DC Input Voltage (Referenced to GND)
DC Output Voltage (Referenced to GND)
DC Input Current, per Pin
DC Output Current, per Pin
DC Supply Current, VCC and GND Pins
Power Dissipation in Still Air, Plastic DIP+
SOIC Package+
-0.5 to +7.0
-1.5 to VCC +1.5
-0.5 to VCC +0.5
±20
±25
±50
750
500
Tstg Storage Temperature
-65 to +150
TL Lead Temperature, 1 mm from Case for 10 Seconds
(Plastic DIP or SOIC Package)
260
*Maximum Ratings are those values beyond which damage to the device may occur.
Functional operation should be restricted to the Recommended Operating Conditions.
+Derating - Plastic DIP: - 10 mW/°C from 65° to 125°C
SOIC Package: : - 7 mW/°C from 65° to 125°C
Unit
V
V
V
mA
mA
mA
mW
°C
°C
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
VCC
VIN, VOUT
DC Supply Voltage (Referenced to GND)
DC Input Voltage, Output Voltage (Referenced to GND)
TA Operating Temperature, All Package Types
tr, tf Input Rise and Fall Time (Figure 1)
VCC =2.0 V
VCC =4.5 V
VCC =6.0 V
Min Max Unit
2.0 6.0
V
0 VCC V
-55 +125 °C
0 1000 ns
0 500
0 400
This device contains protection circuitry to guard against damage due to high static voltages or electric fields.
However, precautions must be taken to avoid applications of any voltage higher than maximum rated voltages to this
high-impedance circuit. For proper operation, VIN and VOUT should be constrained to the range GND≤(VIN or
VOUT)≤VCC.
Unused inputs must always be tied to an appropriate logic voltage level (e.g., either GND or VCC). Unused
outputs must be left open.
2
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( kodenshi )
KK74HC393A data
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국내 전력반도체 판매점
상호 : 아이지 인터내셔날
전화번호 : 051-319-2877
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