SN74LS375D データシートの表示（PDF） - Motorola => Freescale
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SN74LS375D Datasheet PDF : 5 Pages
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SN54 / 74LS375
LOGIC DIAGRAM
DATA
ENABLE
TO OTHER LATCH
Q (SN54LS/74LS375 ONLY)
Q
GUARANTEED OPERATING RANGES
Symbol
Parameter
VCC
Supply Voltage
TA
Operating Ambient Temperature Range
IOH
Output Current — High
IOL
Output Current — Low
AC SETUP REQUIREMENTS (TA = 25°C, VCC = 5.0 V)
Symbol
Parameter
Min
tW
Enable Pulse Width
20
ts
Setup Time
20
th
Hold Time
0
Min
Typ
Max
Unit
54
4.5
5.0
5.5
V
74
4.75
5.0
5.25
54
– 55
25
125
°C
74
0
25
70
54, 74
– 0.4
mA
54
4.0
mA
74
8.0
Limits
Typ
Max
Unit
ns
ns
ns
Test Conditions
VCC = 5.0 V
AC WAVEFORMS
D
1.3 V
1.3 V
ts
th
E
1.3 V
1.3 V
1.3 V
tPLH
Q
tPLH
1.3 V
tPHL
1.3 V
tPHL
Q
tPHL
1.3 V
tPLH
1.3 V
tPHL
tPLH
DEFINITION OF TERMS
SETUP TIME (ts) — is defined as the minimum time required
for the correct logic level to be present at the logic input prior to
the clock transition from LOW-to-HIGH in order to be recog-
nized and transferred to the outputs.
HOLD TIME (th) — is defined as the minimum time following
the clock transition from LOW-to-HIGH that the logic level
must be maintained at the input in order to ensure continued
recognition. A negative HOLD TIME indicates that the correct
logic level may be released prior to the clock transition from
LOW-to-HIGH and still be recognized.
FAST AND LS TTL DATA
5-530
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