7493 데이터 시트보기 (PDF) - NTE Electronics
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7493 Datasheet PDF : 4 Pages
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Electrical Characteristics: (Note 3, Note 4)
Parameter
Symbol
Test Conditions
High−Level Input Voltage
Low−Level Input Voltage
Input Clamp Voltage
High Level Output Voltage
Low Level Output Voltage
Input Current
High Level Input Current
VIH
VIL
VIK VCC = MIN, II = −12mA
VOH VCC = MIN, VIH = 2V, VIL = MAX, IOH = -400A
VOL VCC = MIN, VIH = 2V, VIL = 0.8V,
IOL = 16mA, Note 5
II
VCC = MAX, VI = 5.5V
IIH VCC = MAX, VI = 2.4V
Any Reset
CKA
CKB
Low Level Input Current
IIL VCC = MAX, VI = 0.4V
Any Reset
CKA
CKB
Short−Circuit Output Current IOS VCC = MAX, Note 6
Supply Current
ICC VCC = MAX, Note 7
Min Typ Max Unit
2
−
−
V
−
− 0.8 V
−
− −1.5 V
2.7 3.4 −
V
− 0.2 0.4 V
−
− 0.1 mA
−
− 40 A
−
− 80 A
−
− 80 A
−
− −1.6 mA
−
− −3.2 mA
−
− −3.2 mA
−18 − −57 mA
− 26 39 mA
Note 3. .For conditions shown as MIN or MAX, use the appropriate value specified under “Recommended
Operation Conditions”.
Note 4. All typical values are at VCC = 5V, TA = +25C.
Note 5. QA outputs are tested at IOL = 16mA plus the limit value of IIL for the CKB input. This permits
driving the CKB input while maintaining full fan−out capability.
Note 6. Not more than one output should be shorted at a time.
Note 7. ICC is measured with all outputs open, both RO inputs grounded following momentary con-
nection to 4.5V, and all other inputs grounded.
Switching Characteristics: (VCC = 5V, TA = +25C unless otherwise specified)
Parameter
Symbol
Test Conditions
Min Typ Max Unit
Maximum Count Frequency
(From CKA Input to QA Output)
(From CKB Input to QB Output)
Propagation Delay Time
(From CKA Input to QA Output)
Propagation Delay Time
(From CKA Input to QD Output)
Propagation Delay Time
(From CKB Input to QB Output)
Propagation Delay Time
(From CKB Input to QC Output)
Propagation Delay Time
(From CKB Input to QD Output)
Propagation Delay Time
(From Set−to−0 Input to Any Output)
fmax RL = 400k, CL = 15pF
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPLH
tPHL
tPHL
32 42 − MHz
16 −
− MHz
− 10 16 ns
− 12 18 ns
− 46 70 ns
− 46 70 ns
− 10 16 ns
− 14 21 ns
− 21 32 ns
− 23 35 ns
− 34 51 ns
− 34 51 ns
− 26 40 ns
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