HD74AC Datasheet, PDF (20/52 Pages) Hitachi Semiconductor – HD74AC Series Common Information

Definition of Specifications
2. Ratings and Specifications
Table 1 Absolute Maximum Ratings^*1
Parameter
Symbol
Limit
Unit
Condition
Supply voltage
V_CC
DC input Diode current I_IK
or DC input voltage
–0.5 to 7.0
V
–20
mA
V_I = –0.5
V_I
DC output Diode
I _OK
current or DC output
voltage
20
mA
–0.5 to V_CC +0.5 V
–50
mA
V_I = V_CC +0.5
V_O = –0.5
V_O
DC output source or I_O
sink current
50
mA
–0.5 to V_CC +0.5 V
±50
mA
V_O = V_CC +0.5
DC V_CC or ground
I_CC or I_GND
±50
mA
current per output pin
Storage temperature T_STG
–65 to 150
°C
Note: 1. Absolute maximum ratings are those values beyond which damage to the device may occur.
Obviously the databook specifications should be met, without exception to ensure that the
system design is reliable over its power supply, temperature, output/input loading variables.
Hitachi does not recommend operation of FACT circuits outside databook specifications.
Table 2 Recommended Operating Conditions
Parameter
Symbol
Limit
Unit
Condition
Supply Voltage (unless
otherwise specified)
AC devices V_CC
2.0 to 6.0 V
ACT devices
4.5 to 5.5
Input voltage
V_I
0 to V_CC
V
Output voltage
V_O
0 to V_CC
V
Operating temperature
T_A
–40 to +85 °C
Input rise and Fall time*¹ (typical)
tr, tf
150
ns/V
V_CC @ 3.0V
(except Schmitt inputs) ’AC devices V_IN from
40
ns/V
V_CC @ 4.5V
30% to 70% of V_CC
25
ns/V
V_CC @ 5.5V
Input rise and Fall time*¹ (typical)
tr, tf
10
ns/V
V_CC @ 4.5V
(except schmitt inputs) ’ACT devices V_IN from
8
ns/V
V_CC @ 5.5V
0.8 to 2.0 V, V_meas from 0.8 to 2.0V
Note: 1. See individual data sheets for those devices which differ from the typical input rise and fall times
noted here.
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