
MC14028B
http://onsemi.com
3
ELECTRICAL CHARACTERISTICS (Voltages Referenced to VSS)
VDD
– 55
_C
25
_C
125
_C
Characteristic
Symbol
VDD
Vdc
Min
Max
Min
Typ (4.)
Max
Min
Max
Unit
Output Voltage
“0” Level
Vin = VDD or 0
VOL
5.0
10
15
—
0.05
—
0
0.05
—
0.05
Vdc
“1” Level
Vin = 0 or VDD
VOH
5.0
10
15
4.95
9.95
14.95
—
4.95
9.95
14.95
5.0
10
15
—
4.95
9.95
14.95
—
Vdc
Input Voltage
“0” Level
(VO = 4.5 or 0.5 Vdc)
(VO = 9.0 or 1.0 Vdc)
(VO = 13.5 or 1.5 Vdc)
VIL
5.0
10
15
—
1.5
3.0
4.0
—
2.25
4.50
6.75
1.5
3.0
4.0
—
1.5
3.0
4.0
Vdc
“1” Level
(VO = 0.5 or 4.5 Vdc)
(VO = 1.0 or 9.0 Vdc)
(VO = 1.5 or 13.5 Vdc)
VIH
5.0
10
15
3.5
7.0
11
—
3.5
7.0
11
2.75
5.50
8.25
—
3.5
7.0
11
—
Vdc
Output Drive Current
(VOH = 2.5 Vdc)
Source
(VOH = 4.6 Vdc)
(VOH = 9.5 Vdc)
(VOH = 13.5 Vdc)
IOH
5.0
10
15
– 3.0
– 0.64
– 1.6
– 4.2
—
– 2.4
– 0.51
– 1.3
– 3.4
– 4.2
– 0.88
– 2.25
– 8.8
—
– 1.7
– 0.36
– 0.9
– 2.4
—
mAdc
(VOL = 0.4 Vdc)
Sink
(VOL = 0.5 Vdc)
(VOL = 1.5 Vdc)
IOL
5.0
10
15
0.64
1.6
4.2
—
0.51
1.3
3.4
0.88
2.25
8.8
—
0.36
0.9
2.4
—
mAdc
Input Current
Iin
15
—
± 0.1
—
±0.00001
± 0.1
—
± 1.0
Adc
Input Capacitance
(Vin = 0)
Cin
—
—
—
—
5.0
7.5
—
—
pF
Quiescent Current
(Per Package)
IDD
5.0
10
15
—
5.0
10
20
—
0.005
0.010
0.015
5.0
10
20
—
150
300
600
Adc
Total Supply Current (5.) (6.)
(Dynamic plus Quiescent,
Per Package)
(CL = 50 pF on all outputs, all
buffers switching)
IT
5.0
10
15
IT = (0.3 A/kHz) f + IDD
IT = (0.6 A/kHz) f + IDD
IT = (0.9 A/kHz) f + IDD
Adc
4. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.
5. The formulas given are for the typical characteristics only at 25
_C.
6. To calculate total supply current at loads other than 50 pF:
IT(CL) = IT(50 pF) + (CL – 50) Vfk
where: IT is in A (per package), CL in pF, V = (VDD – VSS) in volts, f in kHz is input frequency, and k = 0.001.
SWITCHING CHARACTERISTICS (7.) (CL = 50 pF, TA = 25_C)
Characteristic
Symbol
VDD
Min
Typ (8.)
Max
Unit
Output Rise and Fall Time
tTLH, tTHL = (1.5 ns/pF) CL + 25 ns
tTLH, tTHL = (0.75 ns/pF) CL + 12.5 ns
tTLH, tTHL = (0.55 ns/pF) CL + 9.5 ns
tTLH,
tTHL
5.0
10
15
—
100
50
40
200
100
80
ns
Propagation Delay Time
tPLH, tPHL = (1.7 ns/pF) CL + 215 ns
tPLH, tPHL = (0.66 ns/pF) CL + 97 ns
tPLH, tPHL = (0.5 ns/pF) CL + 65 ns
tPLH,
tPHL
5.0
10
15
—
300
130
90
600
260
180
ns
7. The formulas given are for the typical characteristics only at 25
_C.
8. Data labelled “Typ” is not to be used for design purposes but is intended as an indication of the IC’s potential performance.