CD54HC354_07 Datasheet, PDF (9/15 Pages) Texas Instruments – 8-Line to 1-Line Data Selector/Multiplexer/Register With 3-State Outputs

CD54HC354, CD74HC354, CD74HCT354
Switching Specifications Input t_r, t_f = 6ns (Continued)
PARAMETER
Propagation Delay,
Sn → Y, Y
Propagation Delay,
LE → Y, Y
Output Disabling Time,
OEn to Y, Y
Output Disabling Time,
OE3 to Y, Y
Output Enabling Time,
OEn to Y, Y
Output Enabling Time,
OE3 to Y, Y
Output Transition Time
Input Capacitance
Three-State Capacitance
Power Dissipation
Capacitance
(Notes 4, 5)
SYMBOL
t_PLH, t_PHL
t_PLH, t_PHL
t_PLZ, t_PHZ
t_PLZ, t_PHZ
t_PZL, t_PZH
t_PZL, t_PZH
t_TLH, t_THL
C_IN
C_O
C_PD
TEST
CONDITIONS
C_L = 50pF
C_L = 15pF
C_L = 50pF
C_L = 15pF
C_L = 50pF
C_L = 15pF
C_L = 50pF
C_L = 15pF
C_L = 50pF
C_L = 15pF
C_L = 50pF
C_L = 15pF
C_L = 50pF
-
-
-
V_CC (V)
4.5
5
4.5
5
4.5
5
4.5
5
4.5
5
4.5
5
4.5
-
-
5
25^oC
TYP MAX
-
59
25
-
-
63
25
-
-
33
13, 16
-
-
39
13, 16
-
-
34
14
-
-
34
14
-
-
12
-
10
-
20
92
-
-40^oC TO 85^oC
MAX
74
-
79
-
41
-
49
-
43
-
43
-
15
10
20
-
NOTES:
4. C_PD is used to determine the dynamic power consumption, per device.
5. P_D = V_CC2 (C_PD + C_L) where f_i = Input Frequency, C_L = Output Load Capacitance, V_CC = Supply Voltage.
-55^oC TO
125^oC
MAX
89
-
94
-
50
-
59
-
51
-
51
-
18
10
20
-
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
pF
pF
pF
Test Circuits and Waveforms
t_rC_L
CLOCK
90%
10%
t_fC_L
50%
10%
t_WL
t_WL
+
t_WH
=
I
fC_L
50%
50%
t_WH
V_CC
GND
t_rC_L = 6ns
CLOCK
2.7V
0.3V
t_fC_L = 6ns
t_WL
+
t_WH
=
I
fC_L
3V
1.3V
0.3V
1.3V
1.3V
GND
t_WL
t_WH
NOTE: Outputs should be switching from 10% V_CC to 90% V_CC in
accordance with device truth table. For f_MAX, input duty cycle = 50%.
FIGURE 2. HC CLOCK PULSE RISE AND FALL TIMES AND
PULSE WIDTH
NOTE: Outputs should be switching from 10% V_CC to 90% V_CC in
accordance with device truth table. For f_MAX, input duty cycle = 50%.
FIGURE 3. HCT CLOCK PULSE RISE AND FALL TIMES AND
PULSE WIDTH
9