CD4043BMS, CD4044BMS
Typical Performance Characteristics (Continued)
106
105
AMBIENT TEMPERATURE (TA) = +25oC
SUPPLY VOLTAGE (VDD) = 15V
104
103
10V
102
10
1
10V
5V
CL =15pF
CL = 50pF
103
104
105
106
107
INPUT FREQUENCY (fI) (kHz)
FIGURE 7. TYPICAL POWER DISSIPATION vs FREQUENCY
VDD
1MΩ
1MΩ
VDD
S
Q
OUTPUT
S
Q
OUTPUT
LATCH
LATCH
R
R
1MΩ
1MΩ
VDD
CD4044BMS
CD4043BMS
FIGURE 8. SWITCH BOUNCE ELIMINATOR
TEST
IN
IN
A
VDD
tPHZ VDD VSS VSS
tPLZ VSS VDD VDD
tPZH VDD VSS VSS
tPZL VSS VDD VDD
Z = HIGH IMPEDANCE
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
VDD
50%
50%
ENABLE
POINT A
VSS
≈ 2/3 VDD
90%
tPZH
ENABLE
IN
tPHZ
10%
≈ 1/3 VDD
(IN = VDD, IN = VSS)
IN
POINT A
≈ 2/3 VDD
≈ 1/3 VDD
1KΩ
90%
10%
(IN = VSS, IN = VDD)
A
tPZL
tPLZ
CL = 50pF
VSS
FIGURE 9. ENABLE PROPAGATION DELAY TIME TEST CIRCUIT AND WAVEFORM
7-883
INTERSIL [ Intersil ]
