MC74HC4538A_05 Datasheet, PDF (3/16 Pages) ON Semiconductor – Dual Precision Monostable Multivibrator (Retriggerable,Resettable)

MC74HC4538A
MAXIMUM RATINGS
Symbol
Parameter
Value
Unit
V_CC DC Supply Voltage
V_I
DC Input Voltage
V_O
DC Output Voltage
I_IK
DC Input Diode Current
I_OK
I_O
I_CC
I_GND
T_STG
T_L
T_J
q_JA
DC Output Diode Current
DC Output Sink Current
DC Supply Current per Supply Pin
DC Ground Current per Ground Pin
Storage Temperature Range
Lead temperature, 1 mm from Case for 10 Seconds
Junction temperature under Bias
Thermal resistance
(Note 1)
A, B, Reset
C_X, R_X
PDIP
SOIC
TSSOP
*0.5 to )7.0
*0.5 v V_I v V_CC )0.5
*0.5 v V_O v V_CC )0.5
$20
$30
$25
$25
$100
$100
*65 to )150
260
)150
78
112
148
V
V
V
mA
mA
mA
mA
mA
_C
_C
_C
_C/W
P_D
Power Dissipation in Still Air at 85_C
PDIP
750
mW
SOIC
500
TSSOP
450
MSL Moisture Sensitivity
Level 1
F_R
V_ESD
Flammability Rating
ESD Withstand Voltage
Oxygen Index: 30% − 35% UL−94−VO (0.125 in)
Human Body Model (Note 2)
>2000
V
Machine Model (Note 3)
>100
Charged Device Model (Note 4)
>500
I_Latchup Latchup Performance
Above V_CC and Below GND at 85_C (Note 5)
$300
mA
Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit
values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied,
damage may occur and reliability may be affected.
1. I_O absolute maximum rating must be observed.
2. Tested to EIA/JESD22−A114−A.
3. Tested to EIA/JESD22−A115−A.
4. Tested to JESD22−C101−A.
5. Tested to EIA/JESD78.
6. For high frequency or heavy load considerations, see the ON Semiconductor High−Speed CMOS Data Book (DL129/D).
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min
Max
Unit
V_CC
V_in, V_out
T_A
t_r, t_f
DC Supply Voltage (Referenced to GND)
DC Input Voltage, Output Voltage (Referenced to GND)
Operating Temperature, All Package Types
Input Rise and Fall Time
(Figure 7)
A or B (Figure 5)
V_CC = 2.0 V
V_CC = 4.5 V
V_CC = 6.0 V
3.0*
6.0
V
0
V_CC
V
–55
+125
_C
0
1000
ns
0
500
0
400
−
No Limit
R_x
External Timing Resistor
V_CC < 4.5 V
V_CC ≥ 4.5 V
1.0
†
kW
2.0
†
C_x
External Timing Capacitor
0
†
mF
*The HC4538A will function at 2.0 V but for optimum pulse−width stability, V_CC should be above 3.0 V.
†The maximum allowable values of R_x and C_x are a function of the leakage of capacitor C_x, the leakage of the HC4538A, and leakage due to board layout
and surface resistance. For most applications, C_x/R_x should be limited to a maximum value of 10 mF/1.0 MW. Values of C_x > 1.0 mF may cause a
problem during power down (see Power Down Considerations). Susceptibility to externally induced noise signals may occur for R_x > 1.0 MW.
7. Unused inputs may not be left open. All inputs must be tied to a high−logic voltage level or a low−logic input voltage level.
8. Information on typical parametric values can be found in the ON Semiconductor High−Speed CMOS Data Book (DL129/D).
http://onsemi.com
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