MC74HCT259A Datasheet, PDF (4/9 Pages) ON Semiconductor – High−Performance Silicon−Gate CMOS

MC74HCT259A
AC ELECTRICAL CHARACTERISTICS (V_CC = 4.5 to 5.5 V, C_L = 50 pF, Input t_r = t_f = 6 ns)
Guaranteed Limit
Symbol
Parameter
−55 to
25°C
v 85°C v 125°C Unit
t_PLH,
t_PHL
t_PLH,
t_PHL
t_PLH,
t_PHL
t_PHL
Maximum Propagation Delay, Data to Output
(Figures 2 and 7)
Maximum Propagation Delay, Address Select to Output
(Figures 3 and 7)
Maximum Propagation Delay, Enable to Output
(Figures 4 and 7)
Maximum Propagation Delay, Reset to Output
(Figures 5 and 7)
32
32
42
ns
32
40
45
ns
32
40
45
ns
22
26
32
ns
t_TLH,
t_THL
C_in
Maximum Output Transition Time, Any Output
(Figures 2 and 7)
Maximum Input Capacitance
15
19
22
ns
10
10
10
pF
C_PD
Power Dissipation Capacitance (Per Package)
Typical @ 25°C, V_CC = 5.0 V
30
pF
TIMING REQUIREMENTS (V_CC = 4.5 to 5.5 V, Input t_r = t_f = 6 ns)
Symbol
t_su
t_h
t_w
Parameter
Minimum Setup Time, Address or Data to Enable
(Figure 6)
Minimum Hold Time, Enable to Address or Data
(Figure 6)
Minimum Pulse Width, Reset or Enable
(Figure 4 or 5)
Guaranteed Limit
−55 to
25°C
v 85°C v 125°C Unit
15
19
22
ns
1
1
1
ns
15
19
22
ns
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