CD74HCT4538MT
ActiveHIGH SPEED CMOS LOGIC DUAL RETRIGGERABLE PRECISION MONOSTABLE MULTIVIBRATORS
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CD74HCT4538MT
ActiveHIGH SPEED CMOS LOGIC DUAL RETRIGGERABLE PRECISION MONOSTABLE MULTIVIBRATORS
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Technical Specifications
Parameters and characteristics commom to parts in this series
| Specification | CD74HCT4538MT | CD74HCT4538 Series |
|---|---|---|
| Current - Output High, Low | 4 mA, 4 mA | 4 mA |
| Independent Circuits | 2 | 2 |
| Logic Type | Monostable | Monostable |
| Mounting Type | Surface Mount | Surface Mount, Through Hole |
| Operating Temperature [Max] | 125 °C | 125 °C |
| Operating Temperature [Min] | -55 °C | -55 °C |
| Package / Case | 16-SOIC | 16-SOIC, 16-DIP |
| Package / Case | 3.9 mm Width, 0.154 in | 0.154 - 7.62 mm Width |
| Propagation Delay | 23 ns | 23 ns |
| Schmitt Trigger Input | True | True |
| Supplier Device Package | 16-SOIC | 16-SOIC, 16-PDIP |
| Voltage - Supply [Max] | 5.5 V | 5.5 V |
| Voltage - Supply [Min] | 4.5 V | 4.5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Digikey | Cut Tape (CT) | 1 | $ 2.23 | |
| 10 | $ 1.43 | |||
| 25 | $ 1.22 | |||
| 100 | $ 0.98 | |||
| Digi-Reel® | 1 | $ 1.54 | ||
| 10 | $ 1.38 | |||
| 25 | $ 1.31 | |||
| 100 | $ 1.07 | |||
| Tape & Reel (TR) | 250 | $ 1.00 | ||
| 500 | $ 0.89 | |||
| 1250 | $ 0.70 | |||
| 2500 | $ 0.65 | |||
| 6250 | $ 0.62 | |||
| 12500 | $ 0.60 | |||
| Texas Instruments | SMALL T&R | 1 | $ 1.14 | |
| 100 | $ 0.88 | |||
| 250 | $ 0.65 | |||
| 1000 | $ 0.46 | |||
CD74HCT4538 Series
High Speed CMOS Logic Dual Retriggerable Precision Monostable Multivibrators
| Part | Operating Temperature [Min] | Operating Temperature [Max] | Supplier Device Package | Independent Circuits | Current - Output High, Low | Voltage - Supply [Max] | Voltage - Supply [Min] | Propagation Delay | Mounting Type | Package / Case | Package / Case | Schmitt Trigger Input | Logic Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Texas Instruments CD74HCT4538MT | -55 °C | 125 °C | 16-SOIC | 2 | 4 mA, 4 mA | 5.5 V | 4.5 V | 23 ns | Surface Mount | 16-SOIC | 0.154 in, 3.9 mm Width | Monostable | |
Texas Instruments CD74HCT4538M | -55 °C | 125 °C | 16-SOIC | 2 | 4 mA, 4 mA | 5.5 V | 4.5 V | 23 ns | Surface Mount | 16-SOIC | 0.154 in, 3.9 mm Width | Monostable | |
Texas Instruments CD74HCT4538E | -55 °C | 125 °C | 16-PDIP | 2 | 4 mA, 4 mA | 5.5 V | 4.5 V | 23 ns | Through Hole | 16-DIP | 0.3 in, 7.62 mm | Monostable |
Description
General part information
CD74HCT4538 Series
The ’HC4538 and ’HCT4538 are dual retriggerable/resettable monostable precision multivibrators for fixed voltage timing applications. An external resistor (RX) and an external capacitor (CX) control the timing and the accuracy for the circuit. Adjustment of RXand CXprovides a wide range of output pulse widths from the Q and Q\ terminals. The propagation delay from trigger input-to-output transition and the propagation delay from reset input-to-output transition are independent of RXand CX.
Leading-edge triggering (A) and trailing edge triggering (B)\ inputs are provided for triggering from either edge of the input pulse. An unused "A" input should be tied to GND and an unused B\ should be tied to VCC. On power up the IC is reset. Unused resets and sections must be terminated. In normal operation the circuit retriggers on the application of each new trigger pulse. To operate in the non-triggerable mode Q\ is connected to B\ when leading edge triggering (A) is used or Q is connected to A when trailing edge triggering (B)\ is used. The period (. CMINis 0pF.
The ’HC4538 and ’HCT4538 are dual retriggerable/resettable monostable precision multivibrators for fixed voltage timing applications. An external resistor (RX) and an external capacitor (CX) control the timing and the accuracy for the circuit. Adjustment of RXand CXprovides a wide range of output pulse widths from the Q and Q\ terminals. The propagation delay from trigger input-to-output transition and the propagation delay from reset input-to-output transition are independent of RXand CX.
Documents
Technical documentation and resources