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74AHC573 Datasheet PDF : 19 Pages
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NXP Semiconductors
74AHC573; 74AHCT573
Octal D-type transparant latch; 3-state
Table 7. Dynamic characteristics …continued
Voltages are referenced to GND (ground = 0 V); for test circuit see Figure 11.
Symbol Parameter Conditions
25 C
40 C to +85 C 40 C to +125 C Unit
Min Typ[1] Max Min
Max
Min
Max
th
hold time Dn to LE; see Figure 10
VCC = 3.0 V to 3.6 V
1.5 -
- 1.5
-
1.5
-
ns
VCC = 4.5 V to 5.5 V
1.5 -
- 1.5
-
1.5
-
ns
CPD
power
fi = 1 MHz;
dissipation VI = GND to VCC
capacitance
[5] -
12 -
-
-
-
-
pF
74AHCT573; VCC = 4.5 V to 5.5 V
tpd
propagation Dn to Qn; see Figure 7
[2]
delay
CL = 15 pF
- 3.5 5.5 1
6.5
1
7.0 ns
CL = 50 pF
- 4.9 7.5 1
8.5
1
9.5 ns
LE to Qn; see Figure 8
[2]
CL = 15 pF
- 3.9 6.0 1
7.0
1
7.5 ns
CL = 50 pF
- 5.5 8.5 1
9.5
1
11.0 ns
ten
enable time OE to Qn; see Figure 9
[3]
CL = 15 pF
- 4.1 6.5 1
7.5
1
8.5 ns
CL = 50 pF
- 5.9 8.5 1
10.0
1
11.0 ns
tdis
disable time OE to Qn; see Figure 9
[4]
CL = 15 pF
- 4.5 6.5 1
7.5
1
8.5 ns
CL = 50 pF
- 6.4 9.0 1
10.0
1
11.5 ns
tW
pulse width LE HIGH; see Figure 8
5.0 -
- 5.0
-
5.0
-
ns
tsu
set-up time Dn to LE; see Figure 10
3.5 -
- 3.5
-
3.5
-
ns
th
hold time Dn to LE; see Figure 10
1.5 -
- 1.5
-
1.5
-
ns
CPD
power
fi = 1 MHz;
dissipation VI = GND to VCC
capacitance
[5] -
18 -
-
-
-
-
pF
[1] Typical values are measured at nominal supply voltage (VCC = 3.3 V and VCC = 5.0 V).
[2] tpd is the same as tPHL and tPLH.
[3] ten is the same as tPZH and tPZL.
[4] tdis is the same as tPHZ and tPLZ.
[5] CPD is used to determine the dynamic power dissipation (PD in W).
PD = CPD VCC2 fi N + (CL VCC2 fo) where:
fi = input frequency in MHz;
fo = output frequency in MHz;
CL = output load capacitance in pF;
VCC = supply voltage in V;
N = number of inputs switching;
(CL VCC2 fo) = sum of the outputs.
74AHC_AHCT573
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 6 — 25 November 2010
© NXP B.V. 2010. All rights reserved.
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