CD4538 National Semiconductor, CD4538 Datasheet
CD4538
Available stocks
Related parts for CD4538
CD4538 Summary of contents
Page 1
... CD4538BM CD4538BC Dual Precision Monostable General Description The CD4538B is a dual precision monostable multivibrator with independent trigger and reset controls The device is retriggerable and resettable and the control inputs are inter- nally latched Two trigger inputs are provided to allow either rising or falling edge triggering The reset inputs are active ...
Page 2
... Conditions DC Supply Voltage (V Input Voltage ( Operating Temperature Range ( CD4538BM 150 C a CD4538BC 700 mW 500 mW 260 C CD4538BM (Note Min Max Min ...
Page 3
... The tables of ‘‘Recommended Operating Conditions’’ and ‘‘Electrical Characteristics’’ provide conditions for acutal device operation Note unless otherwise specified e SS Note 3 I and I are tested one output at a time OH OL CD4538BC (Note Min Max Min ...
Page 4
... 100 10V 15V leakage of the CD4538B and leakage due to board layout surface X FIGURE 1 4 Typ Max Units 100 200 ns 50 100 300 600 ns 150 300 ns 100 220 ns ...
Page 5
... Theory of Operation Trigger Operation The block diagram of the CD4538B is shown in Figure 1 with circuit operation following As shown in Figures 1 and 2 before an input trigger occurs the monostable is in the quiescent state with the Q output low and the timing capacitor C completely charged When the trigger input A goes from V ...
Page 6
Typical Applications FIGURE 3 Retriggerable Monostables Circuitry FIGURE 5 Connection of Unused Sections TL F 6000– 6000–7 FIGURE 4 Non-Retriggerable Monostables Circuitry TL F 6000 – 6000– 6000– 8 ...
Page 7
Typical Applications (Continued) FIGURE 6 Switching Test Waveforms Input Connections Characteristics PLH PHL TLH THL V PG1 OUT PLH PHL TLH THL V V ...
Page 8
Typical Applications (Continued) FIGURE 9 Typical Normalized Distribution of Units for Output Pulse Width FIGURE 10 Typical Pulse Width Variation as a Function of Supply Voltage V FIGURE 11 Typical Total Supply Current Versus Output Duty Cycle R 100 k ...
Page 9
... Physical Dimensions inches (millimeters) Order Number CD4538BMJ or CD4538BCJ Ceramic Dual-In-Line Package (J) NS Package Number J16A 9 ...
Page 10
... Physical Dimensions inches (millimeters) (Continued) Order Number CD4538BMN or CD4538BCN LIFE SUPPORT POLICY NATIONAL’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF NATIONAL SEMICONDUCTOR CORPORATION As used herein 1 Life support devices or systems are devices or ...