CD4508BMS Datasheet, PDF (8/9 Pages) Intersil Corporation – CMOS Dual 4-Bit Latch

CD4508BMS
Typical Performance Characteristics (Continued)
10⁵
8
6
4
2
10⁴
8
6
4
2
10³
8
6
4
2
10²
8
6
4
AMBIENT TEMPERATURE
(T_A) = +25^oC, tr, tf = 20ns
RL = 200kΩ
SUPPLY VOLTAGE
(VDD) = 15V
10V
10V
5V
CL = 50pF
2
CL = 15pF
10
10
2 4 68 2
10¹
4 68
2 4 68
2
10²
10³
4 68
10⁴
INPUT FREQUENCY (fIN) (kHz)
FIGURE 8. TYPICAL POWER DISSIPATION AS A FUNCTION OF FREQUENCY
Waveforms and Test Circuits
STROBE
INPUT
tSU
tW(st)
tH
Dn
INPUT
tW(R)
RESET
OUTPUT
DISABLE
tPLH
Qn OUTPUT
tTLH
tPHL ^tPHL
tTHL
FIIGURE 9. TEST WAVEFORMS
tPLH
PULSE
GEN
D
VDD
STROBE _Q0
DISABLE
D0
Q1
D1
D2
Q2
D3
RESET ^Q3
TEST ANY
OUTPUT ^1kΩ
Q
50pF
VSS
50%
OUTPUT DISABLE
tPLZ
Q OUTPUT
Q OUTPUT
10%
90%
50%
tPLZ
90%
10%
tPHZ
CHAR.
tPHZ
tPLZ
tPZL
tPZH
tPZH
TEST VOLT.
AT D
AT Q
VDD
VSS
VSS
VDD
VSS
VDD
VDD
VSS
FIGURE 10. OUTPUT DISABLE TEST CIRCUIT AND WAVEFORMS
VDD
VSS
VDD
VOL
VOH
VSS
7-1155