| PartNumber | HCF4541BEY | HCF4538M013TR | HCF4538BEY |
| Description | Timers & Support Products Programmable Timer | Monostable Multivibrator Dual Mono Multivibtr | Monostable Multivibrator Dual Mono Multivibtr |
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Category | Timers & Support Products | Monostable Multivibrator | Monostable Multivibrator |
| RoHS | Y | Y | Y |
| Series | HCF4541 | HCF4538 | HCF4538 |
| Type | Programmable | - | - |
| Number of Internal Timers | 1 Timer | - | - |
| Supply Voltage Max | 20 V | 20 V | 20 V |
| Supply Voltage Min | 3 V | 3 V | 3 V |
| Minimum Operating Temperature | - 55 C | - 55 C | - 55 C |
| Maximum Operating Temperature | + 125 C | + 125 C | + 125 C |
| Mounting Style | Through Hole | SMD/SMT | Through Hole |
| Package / Case | PDIP-14 | SOP-16 | PDIP-16 |
| Packaging | Tube | Reel | Tube |
| Height | 4.59 mm | 1.65 mm | 4.59 mm |
| Length | 20 mm | 10 mm | 20 mm |
| Width | 7.1 mm | 4 mm | 7.1 mm |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Propagation Delay Max | 18000 ns, 10000 ns, 7500 ns | - | - |
| High Level Output Current | 8.4 mA | - 2.8 mA | - 2.8 mA |
| Low Level Output Current | - 8.4 mA | 2.8 mA | 2.8 mA |
| Pd Power Dissipation | 200 mW | 100 mW | - |
| Product Type | Timers & Support Products | Monostable Multivibrator | Monostable Multivibrator |
| Factory Pack Quantity | 25 | 2500 | 25 |
| Subcategory | Clock & Timer ICs | Logic ICs | Logic ICs |
| Unit Weight | 0.057144 oz | 0.008536 oz | 0.057419 oz |
| Elements per Chip | - | 2 | 2 |
| Logic Family | - | 4000B | 4000B |
| Logic Type | - | Monostable Multivibrator | Monostable Multivibrator |
| Supply Current Max | - | 0.1 mA | 0.1 mA |
| Propagation Delay Time | - | 600 ns, 300 ns, 200 ns | 600 ns, 300 ns, 200 ns |
| Operating Supply Voltage | - | 3.3 V, 5 V, 9 V, 12 V | 3.3 V, 5 V, 9 V, 12 V |