HD74LVC138
Recommended Operating Conditions
Item
Symbol Ratings
Unit
Supply voltage
VCC
1.5 to 5.5
V
2.0 to 5.5
Input / output voltage
VI
0 to 5.5
V
VO
0 to VCC
V
Operating temperature
Ta
–40 to 85
°C
Output current
IOH
–12
mA
–24*2
Input rise / fall time *1
IOL
12
24*2
tr, tf
10
mA
ns/V
Notes: 1. This item guarantees maximum limit when one input switches.
Waveform: Refer to test circuit of switching characteristics.
2. Duty cycle ≤ 50%
Conditions
Data retention
At operation
G, A, B, C
Y0 to Y7
VCC = 2.7 V
VCC = 3.0 V to 5.5 V
VCC = 2.7 V
VCC = 3.0 V to 5.5 V
Electrical Characteristics
Item
Input voltage
Output voltage
Input current
Quiescent supply current
Symbol
VIH
VIL
VOH
VOL
IIN
ICC
∆ICC
VCC (V)
2.7 to 3.6
4.5 to 5.5
2.7 to 3.6
4.5 to 5.5
2.7 to 5.5
2.7
3.0
3.0
4.5
2.7 to 5.5
2.7
3.0
4.5
0 to 5.5
5.5
3.0 to 3.6
Ta = –40 to 85°C
Min
Max
2.0
—
VCC×0.7 —
—
0.8
—
VCC×0.3
VCC –0.2 —
2.2
—
2.4
—
2.0
—
3.8
—
—
0.2
—
0.4
—
0.55
—
0.55
—
±5.0
—
20
—
500
Unit
V
V
V
V
µA
µA
µA
Switching Characteristics
Item
Propagation delay time
Input capacitance
Output capacitance
Symbol
tPLH
tPHL
CIN
CO
VCC (V)
2.7
3.3±0.3
5.0±0.5
2.7
2.7
Ta = –40 to 85°C
Min
Typ
Max
—
7.0
10.0
1.5
5.0
9.0
—
3.5
7.5
—
3.0
—
—
15.0
—
Test Conditions
IOH = –100 µA
IOH = –12 mA
IOH = –24 mA
IOL = 100 µA
IOL = 12 mA
IOL = 24 mA
VIN = 5.5 V or GND
VIN = VCC or GND
VIN = one input at(VCC –0.6)V,
other inputs at VCC or GND
Unit
ns
From
(Input)
To
(Output)
G, A, B, C Y0 to Y7
pF
pF
Rev.3.00 Jul. 23, 2004 page 3 of 5