MC74HCT259A Datasheet, PDF (5/9 Pages) ON Semiconductor – High−Performance Silicon−Gate CMOS

MC74HCT259A
SWITCHING WAVEFORMS
3.0V
DATA IN
GND
t_r
DATA IN
t_PLH
OUTPUT Q
90%
1.3 V
10%
90%
1.3 V
10%
50%
t_TLH
t_f
3.0 V
GND
t_PHL
t_THL
ADDRESS
SELECT
OUTPUT Q
1.3 V
1.3 V
t_PHL
50%
3.0V
GND
3.0V
GND
t_PLH
Figure 2.
Figure 3.
3.0 V
3.0V
DATA IN
GND
DATA IN
t_w
t_w
GND
V_CC
t_w
3.0V
ENABLE
1.3 V
1.3 V 1.3 V
RESET
1.3 V
GND
t_PHL
t_PLH
t_PHL
GND
OUTPUT Q
50%
OUTPUT Q
50%
Figure 4.
Figure 5.
DATA IN
OR _{1.3 V}
ADDRESS
SELECT
ENABLE
t_h(H)
t_su
1.3 V
Figure 6.
TEST POINT
3.0V
GND
t_h(L)
t_su
3.0V
OUTPUT
DEVICE
UNDER
TEST
C_L*
GND
*Includes all probe and jig capacitance
Figure 7. Test Circuit
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