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74LS670 Datasheet(PDF) 4 Page - Motorola, Inc

Part # 74LS670
Description  4 x 4 REGISTER FILE WITH 3-STATE OUTPUTS
PDF  6 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  MOTOROLA [Motorola, Inc]
Direct Link  http://www.freescale.com
Logo MOTOROLA - Motorola, Inc

74LS670 Datasheet(HTML) 4 Page - Motorola, Inc

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FAST AND LS TTL DATA
SN54/74LS670
AC CHARACTERISTICS (TA = 25°C)
Symbol
Parameter
Limits
Unit
Test Conditions
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
tPLH
tPHL
Propagation Delay, RA or RB
to Output
23
25
40
45
ns
VCC = 5.0 V,
CL = 45 pF
tPLH
tPHL
Propagation Delay, EW to
Output
26
28
45
50
ns
VCC = 5.0 V,
CL = 45 pF
tPLH
tPHL
Propagation Delay, Data
to Output
25
23
45
40
ns
VCC = 5.0 V,
CL = 45 pF
tPZH
tPZL
Output Enable Time
15
22
35
40
ns
tPLZ
tPHZ
Output Disable Time
16
30
35
50
ns
CL = 5.0 pF
AC SETUP REQUIREMENTS (TA = 25°C)
Symbol
Parameter
Limits
Unit
Test Conditions
Symbol
Parameter
Min
Typ
Max
Unit
Test Conditions
tW
Pulse Width
25
ns
VCC = 5.0 V
ts
Setup Time, (D)
10
ns
VCC = 5.0 V
ts
Setup Time, (W)
15
ns
VCC = 5.0 V
th
Hold Time, (D)
15
ns
VCC = 5.0 V
th
Hold Time, (W)
5.0
ns
trec
Recovery Time
25
ns
AC WAVEFORMS
Figure 1
Figure 2
Figure 3
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
1.3 V
RA, RB
Q
Q
D, EW
WA, WB
D
EW
ts
th
th
ts
tW
tPHL
tPLH
tPHL
tPLH



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