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74HC259D Datasheet(PDF) 8 Page - NXP Semiconductors

Part No. 74HC259D
Description  8-bit addressable latch
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Maker  NXP [NXP Semiconductors]
Homepage  http://www.nxp.com
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74HC259D Datasheet(HTML) 8 Page - NXP Semiconductors

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74HC_HCT259
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 5 — 7 August 2012
8 of 22
NXP Semiconductors
74HC259; 74HCT259
8-bit addressable latch
10. Dynamic characteristics
Table 8.
Dynamic characteristics
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 12.
Symbol Parameter
Conditions
25
C
40 C to +85 C 40 C to +125 C Unit
Min
Typ[1] Max
Min
Max
Min
Max
74HC259
tpd
propagation
delay
D to Qn; see Figure 6
[2]
VCC = 2.0 V
-
58
185
-
230
-
280
ns
VCC = 4.5 V
-
21
37
-
46
-
56
ns
VCC = 5.0 V; CL =15pF
-
18
-
-
-
-
-
ns
VCC = 6.0 V
-
17
31
-
39
-
48
ns
An to Qn; see Figure 7
[2]
VCC = 2.0 V
-
58
185
-
230
-
280
ns
VCC = 4.5 V
-
21
37
-
46
-
56
ns
VCC = 5.0 V; CL =15pF
-
17
-
-
-
-
-
ns
VCC = 6.0 V
-
17
31
-
39
-
48
ns
LE to Qn; see Figure 8
[2]
VCC = 2.0 V
-
55
170
-
215
-
255
ns
VCC = 4.5 V
-
20
34
-
43
-
51
ns
VCC = 5.0 V; CL =15pF
-
17
-
-
-
-
-
ns
VCC = 6.0 V
-
16
29
-
37
-
43
ns
tPHL
HIGH to LOW
propagation
delay
MR to Qn; see Figure 9
VCC = 2.0 V
-
50
155
-
195
-
235
ns
VCC = 4.5 V
-
18
31
-
39
-
47
ns
VCC = 5.0 V; CL =15pF
-
15
-
-
-
-
-
ns
VCC = 6.0 V
-
14
26
-
33
-
40
ns
tt
transition time
see Figure 8
[3]
VCC = 2.0 V
-
19
75
-
95
-
119
ns
VCC = 4.5 V
-
7
15
-
19
-
22
ns
VCC = 6.0 V
-
6
13
-
16
-
19
ns
tW
pulse width
LE HIGH or LOW;
see Figure 8
VCC = 2.0 V
70
17
-
90
-
105
-
ns
VCC = 4.5 V
14
6
-
18
-
21
-
ns
VCC = 6.0 V
12
5
-
15
-
18
-
ns
MR LOW; see Figure 9
VCC = 2.0 V
70
17
-
90
-
105
-
ns
VCC = 4.5 V
14
6
-
18
-
21
-
ns
VCC = 6.0 V
12
5
-
15
-
18
-
ns


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