HD74HC147 Datasheet, PDF (3/6 Pages) Hitachi Semiconductor – 10-to-4-line Priority Encoder

HD74HC147
Electrical Characteristics
Item
Input voltage
Output voltage
Input current
Quiescent supply
current
Symbol
VIH
VIL
VOH
VOL
Iin
ICC
VCC (V)
2.0
4.5
6.0
2.0
4.5
6.0
2.0
4.5
6.0
4.5
6.0
2.0
4.5
6.0
4.5
6.0
6.0
6.0
Ta = 25°C
Min Typ Max
1.5 — —
3.15 — —
4.2 — —
— — 0.5
— — 1.35
— — 1.8
1.9 2.0 —
4.4 4.5 —
5.9 6.0 —
4.18 — —
5.68 — —
— 0.0 0.1
— 0.0 0.1
— 0.0 0.1
— — 0.26
— — 0.26
— — ±0.1
— — 4.0
Ta = –40 to+85°C
Min Max Unit
Test Conditions
1.5
—
V
3.15
—
4.2
—
—
0.5 V
—
1.35
—
1.8
1.9
—
V Vin = VIH or VIL IOH = –20 µA
4.4
—
5.9
—
4.13
5.63
—
—
—
IOH = –4 mA
—
IOH = –5.2 mA
0.1
V Vin = VIH or VIL IOL = 20 µA
0.1
—
0.1
—
0.33
IOL = 4 mA
—
0.33
IOL = 5.2 mA
—
±1.0 µA Vin = VCC or GND
—
40 µA Vin = VCC or GND, Iout = 0 µA
Switching Characteristics (C_L = 50 pF, Input t_r = t_f = 6 ns)
Item
Propagation delay
time
Output rise/fall
time
Input capacitance
Symbol VCC (V)
tPHL
2.0
4.5
6.0
tPLH
2.0
4.5
6.0
tTLH, tTHL 2.0
4.5
6.0
Cin
—
Ta = 25°C
Ta = –40 to +85°C
Min Typ Max Min Max Unit
Test Conditions
— — 220 —
275 ns Select to any Y (4 levels)
— 15 44
—
55
— — 37
—
47
— — 220 —
275 ns
— 14 44
—
55
— — 37
—
47
— — 75
—
95 ns
— 5 15
—
19
— — 13
—
16
— 5 10
—
10 pF
Test Circuit
Measurement point
C_L*
Note: C_L includes the probe and fig capacitance.
Rev.2.00, Oct 11, 2005 page 3 of 5