74AHC377PW 데이터 시트보기 (PDF) - NXP Semiconductors.
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74AHC377PW Datasheet PDF : 16 Pages
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NXP Semiconductors
74AHC377; 74AHCT377
Octal D-type flip-flop with data enable; positive-edge trigger
6. Functional description
Table 3. Function table[1]
Operating mode
Load 1
Load 0
Hold (do nothing)
Control
E
CP
l
↑
l
↑
h
↑
H
X
[1] H = HIGH voltage level;
h = HIGH voltage level one set-up time prior to the LOW-to-HIGH CP transition;
L = LOW voltage level;
l = LOW voltage level one set-up time prior to the LOW-to-HIGH CP transition;
↑ = LOW-to-HIGH CP transition;
X = don’t care.
7. Limiting values
Input
Dn
h
l
X
X
Output
Qn
H
L
no change
no change
Table 4. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
Min
Max
Unit
VCC
VI
IIK
IOK
IO
ICC
IGND
Tstg
Ptot
supply voltage
input voltage
input clamping current
output clamping current
output current
supply current
ground current
storage temperature
total power dissipation
VI < −0.5 V
VO < −0.5 V or VO > VCC + 0.5 V
VO = −0.5 V to (VCC + 0.5 V)
Tamb = −40 °C to +125 °C
−0.5
−0.5
[1] −20
[1] −20
−25
-
−75
−65
[2] -
+7.0
V
+7.0
V
-
mA
+20
mA
+25
mA
+75
mA
-
mA
+150
°C
500
mW
[1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
[2] For SO20 packages: above 70 °C the value of Ptot derates linearly at 8 mW/K.
For TSSOP20 packages: above 60 °C the value of Ptot derates linearly at 5.5 mW/K.
74AHC_AHCT377_2
Product data sheet
Rev. 02 — 12 June 2008
© NXP B.V. 2008. All rights reserved.
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