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| TYPE | DESCRIPTION |
| Mounting Type | Surface Mount |
| Package / Case | 20-SSOP (0.209, 5.30mm Width) |
| Surface Mount | YES |
| Operating Temperature | -40°C~125°C TA |
| Packaging | Tube |
| Series | 74HCT |
| Published | 1997 |
| JESD-609 Code | e4 |
| Part Status | Obsolete |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Number of Terminations | 20 |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| Additional Feature | WITH DIRECTION CONTROL |
| Voltage - Supply | 4.5V~5.5V |
| Terminal Position | DUAL |
| Terminal Form | GULL WING |
| Peak Reflow Temperature (Cel) | 260 |
| Number of Functions | 1 |
| Supply Voltage | 5V |
| Terminal Pitch | 0.65mm |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Base Part Number | 74HCT640 |
| Pin Count | 20 |
| JESD-30 Code | R-PDSO-G20 |
| Qualification Status | Not Qualified |
| Output Type | 3-State |
| Number of Elements | 1 |
| Supply Voltage-Max (Vsup) | 5.5V |
| Power Supplies | 5V |
| Supply Voltage-Min (Vsup) | 4.5V |
| Load Capacitance | 50pF |
| Number of Ports | 2 |
| Family | HCT |
| Current - Output High, Low | 6mA 6mA |
| Logic Type | Transceiver, Inverting |
| Output Polarity | INVERTED |
| Max I(ol) | 0.004 A |
| Number of Bits per Element | 8 |
| Prop. Delay@Nom-Sup | 33 ns |
| Propagation Delay (tpd) | 33 ns |
| Control Type | COMMON CONTROL |
| Count Direction | BIDIRECTIONAL |
| Translation | N/A |
| Length | 7.2mm |
| Height Seated (Max) | 2mm |
| Width | 5.3mm |
| RoHS Status | ROHS3 Compliant |
