74F269 Ver la hoja de datos (PDF) - NXP Semiconductors.
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74F269 Datasheet PDF : 19 Pages
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NXP Semiconductors
Table 7. Dynamic characteristics …continued
GND = 0 V; for test circuit, see Figure 13.
Symbol Parameter
Conditions
tsu(H)
tsu(L)
th(H)
th(L)
tWH
tWL
fmax
set-up time HIGH
set-up time LOW
hold time HIGH
hold time LOW
pulse width HIGH
pulse width LOW
maximum
frequency
Dn to CP; see Figure 10
PE to CP; see Figure 10
CEP or CET to CP; see Figure 11
U/D to CP; see Figure 12
Dn to CP; see Figure 10
PE to CP; see Figure 10
CEP or CET to CP; see Figure 11
U/D to CP; see Figure 12
Dn to CP; see Figure 10
PE to CP; see Figure 10
CEP or CET to CP; see Figure 11
U/D to CP; see Figure 12
Dn to CP; see Figure 10
PE to CP; see Figure 10
CEP or CET to CP; see Figure 11
U/D to CP; see Figure 12
CP; see Figure 7
CP; see Figure 7
see Figure 7
11. Waveforms
74F269
8-bit bidirectional binary counter
25 °C; VCC = 5.0 V 0 °C to 70 °C; Unit
VCC = 5.0 V ± 0.5 V
Min Typ Max Min
Max
3.5 -
-
2.5
- ns
5.5 -
-
5.5
- ns
6.0 -
-
5.0
- ns
8.0 -
-
6.5
- ns
3.5 -
-
2.5
- ns
6.5 -
-
6.5
- ns
8.0 -
-
6.5
- ns
6.5 -
-
6.5
- ns
1.0 -
-
0
- ns
0
-
-
0
- ns
0
-
-
0
- ns
0
-
-
0
- ns
1.0 -
-
1.0
- ns
0
-
-
0
- ns
0
-
-
0
- ns
0
-
-
0
- ns
4.0 -
-
4.0
- ns
4.5 -
-
5.0
- ns
100 115 -
85
- MHz
VI
CP input
GND
VOH
Qn, TC output
VOL
1/fmax
VM
tWH
tWL
tPHL
VM
tPLH
001aal292
Fig 7.
Measurement points are given in Table 8.
VM = 1.5 V
VOL and VOH are the typical output voltage levels that occur with the output load.
Clock (CP) to outputs (Qn, TC) propagation delay, the clock pulse width
74F269_5
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 05 — 25 March 2010
© NXP B.V. 2010. All rights reserved.
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