Philips Semiconductors
Single D-type flip-flop; positive-edge trigger
Product specification
74AHC1G79;
74AHCT1G79
RECOMMENDED OPERATING CONDITIONS
SYMBOL
PARAMETER
CONDITIONS
VCC
VI
VO
Tamb
tr, tf (∆t/∆f)
DC supply voltage
input voltage
output voltage
operating ambient
temperature range
input rise and fall times
except for
Schmitt-trigger inputs
see DC and AC
characteristics per
device
VCC = 3.3 V ±0.3 V
VCC = 5 V ±0.5 V
74AHC1G
74AHCT1G
MIN. TYP. MAX. MIN. TYP. MAX.
2.0 5.0 5.5 4.5 5.0 5.5
0
−
5.5 0
−
5.5
0
−
VCC 0
−
VCC
−40 +25 +85 −40 +25 +85
UNIT
V
V
V
°C
−
−
100 −
−
−
−
−
20 −
−
20
ns/V
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134); voltages are referenced to GND (ground = 0 V).
SYMBOL
PARAMETER
VCC
DC supply voltage
VI
input voltage range
IIK
DC input diode current
IOK
DC output diode current
IO
DC output source or sink current
ICC
DC VCC or GND current
Tstg
storage temperature
PD
power dissipation per package
CONDITIONS
VI < −0.5
VO < −0.5 or VO > VCC + 0.5 V; note 1
−0.5 V < VO < VCC + 0.5 V
temperature range: −40 to +85 °C;
note 2
MIN.
−0.5
−0.5
−
−
−
−
−65
−
MAX.
+7.0
+7.0
−20
±20
±25
±75
+150
200
UNIT
V
V
mA
mA
mA
mA
°C
mW
Notes
1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. Above 55 °C the value of PD derates linearly with 2.5 mW/K.
1999 May 18
4