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Octal buffer/line driver; inverting; 3-state
The 74AHCT240-Q100 is an 8-bit inverting buffer/line drivers with 3-state outputs. This device can be used as two 4-bit buffers or one 8-bit buffer. It 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 are over voltage tolerant. This feature allows the use of these devices as translators in mixed voltage environments.
This prouct has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 1) and is suitable for use in automotive applications.
Automotive product qualification in accordance with AEC-Q100 (Grade 1)
Specified from -40 °C to +85 °C and from -40 °C to +125 °C
Balanced propagation delays
All inputs have a Schmitt-trigger action
Inputs accept voltages higher than VCC
74AHCT240-Q100 operates with TTL input levels
ESD protection:
MIL-STD-883, method 3015 exceeds 2000 V
HBM JESD22-A114F exceeds 2000 V
Multiple package options
DHVQFN package with Side-Wettable Flanks enabling Automatic Optical Inspection (AOI) of solder joints
| Type number | Product status | VCC (V) | Logic switching levels | Output drive capability (mA) | fmax (MHz) | Nr of bits | Power dissipation considerations | Tamb (°C) | Rth(j-a) (K/W) | Ψth(j-top) (K/W) | Rth(j-c) (K/W) | Package name |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 74AHCT240BQ-Q100 | Production | 4.5 - 5.5 | TTL | ± 8 | 60 | 8 | low | -40~125 | 78 | 9.1 | 50 | DHVQFN20 |
| 74AHCT240D-Q100 | Production | 4.5 - 5.5 | TTL | ± 8 | 60 | 8 | low | -40~125 | 85 | 27.2 | 61 | SO20 |
| 74AHCT240PW-Q100 | Production | 4.5 - 5.5 | TTL | ± 8 | 60 | 8 | low | -40~125 | 100 | 4.6 | 44.6 | TSSOP20 |
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