74HC259BQ View Datasheet(PDF) - NXP Semiconductors.
Part Name
Description
Manufacturer
74HC259BQ Datasheet PDF : 21 Pages
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NXP Semiconductors
74HC259; 74HCT259
8-bit addressable latch
Table 8. Dynamic characteristics …continued
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
tsu
set-up time D, An to LE; see Figure 10
and Figure 11
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
th
hold time
D to LE; see Figure 10
and Figure 11
80 19 - 100
-
120
- ns
16 7
-
20
-
24
- ns
14 6
-
17
-
20
- ns
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
An to LE; see Figure 10
and Figure 11
0 −19 -
0
-
0
- ns
0 −6 -
0
-
0
- ns
0 −5 -
0
-
0
- ns
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
CPD
power
fi = 1 MHz;
dissipation
VI = GND to VCC
capacitance
2 −11 -
2
-
2
- ns
2 −4 -
2
-
2
- ns
2 −3 -
2
-
2
- ns
[4] -
19 -
-
-
-
- pF
74HCT259
tpd
propagation D to Qn; see Figure 6
[2]
delay
VCC = 4.5 V
- 23 39
-
49
-
59 ns
VCC = 5.0 V; CL = 15 pF
- 20 -
-
-
-
- ns
An to Qn; see Figure 7 [2]
VCC = 4.5 V
- 25 41
51
62 ns
VCC = 5.0 V; CL = 15 pF
- 20 -
-
-
-
- ns
LE to Qn; see Figure 8 [2]
VCC = 4.5 V
- 22 38
-
48
-
57 ns
VCC = 5.0 V; CL = 15 pF
- 20 -
-
-
-
- ns
tPHL
HIGH to LOW MR to Qn; see Figure 9
propagation
delay
VCC = 4.5 V
- 23 39
-
49
-
59 ns
VCC = 5.0 V; CL = 15 pF
- 20 -
-
-
-
- ns
tt
transition time see Figure 8
[3]
VCC = 4.5 V
-
7 15
-
19
-
22 ns
tW
pulse width LE HIGH or LOW;
see Figure 8
VCC = 4.5 V
MR LOW; see Figure 9
19 11 -
24
-
29
- ns
VCC = 4.5 V
18 10 -
23
-
27
- ns
tsu
set-up time D, An to LE; see Figure 10
and Figure 11
VCC = 4.5 V
17 10 -
21
-
26
- ns
74HC_HCT259_4
Product data sheet
Rev. 04 — 25 February 2009
© NXP B.V. 2009. All rights reserved.
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