74HCT240BQ: Octal buffer/line driver; 3-state; inverting
The 74HC240; 74HCT240 is an 8-bit inverting buffer/line driver with 3-state outputs. The device can be used as two 4-bit buffers or one 8-bit buffer. The device features two output enables (1OE and 2OE), each controlling four of the 3-state outputs. A HIGH on nOE causes the outputs to assume a high-impedance OFF-state. Inputs include clamp diodes. This enables the use of current limiting resistors to interface inputs to voltages in excess of VCC.
74HCT240BQ: Product Block Diagram
Outline 3d SOT764-1
SPICE model
- hc Spice model (REV 1.0) ZIP HC 5/7/2013
Ordering Information
| Product | Status | Family | Function | VCC (V) | Description | Logic switching levels | Package version | Output drive capability (mA) | fmax (MHz) | No of bits | tpd (ns) | Power dissipation considerations | Tamb (Cel) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name | No of pins |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74HCT240BQ | Active | HC(T) | Buffers/inverters/drivers | 4.5 - 5.5 | TTL enabled (3-state) | TTL | SOT764-1 | +/- 6 | 36 | 8 | 9 | low | -40~125 | 78 | 9.2 | 50 | DHVQFN20 | 20 |
Package Information
| Product ID | Package Description | Outline Version | Reflow/Wave Soldering | Packing | Product Status | Part NumberOrdering code(12NC) | Marking | Chemical Content | RoHS / Pb Free / RHF | LeadFree Conversion Date | EFR | IFR(FIT) | MTBF(hour) | MSL | MSL LF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74HCT240BQ | | SOT764-1 | Reel 7" Q1/T1 | Active | 74HCT240BQ,115 (9352 836 84115) | HCT240 | 74HCT240BQ |    | Always Pb-free | 84.9 | 6.62 | 1.51E8 | 1 | 1 |
- Octal buffer/line driver; 3-state; inverting 74HCT240PW
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- 74HC_T_240
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