The 74AHC244; 74AHCT244 is an 8-bit 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 are overvoltage tolerant. This feature a.
• Wide supply voltage range from 2.0 V to 5.5 V
• Balanced propagation delays
• All inputs have Schmitt-trigger action
• Overvoltage tolerant inputs to 5.5 V
• High noise immunity
• CMOS low power dissipation
• Input levels:
• For 74AHC244: CMOS level
• For 74AHCT244: TTL level
• ESD protection:
• HBM JESD22-A114F exceeds 2000 V
• MM JESD22-A115-A exceeds 200 V
• CDM JESD22-C101E exceeds 1000 V
• Latch-up performance exceeds 100 mA per JESD 78 Class II Level A
• Multiple package options
• Specified from -40 °C to +85 °C and from -40 °C to +125 °C
3. Ordering information
Table 1. Ordering inf.
No. | Partie # | Fabricant | Description | Fiche Technique |
---|---|---|---|---|
1 | 74AHC244 |
NXP |
Octal buffer/line driver | |
2 | 74AHC244 |
nexperia |
Octal buffer/line driver | |
3 | 74AHC244-Q100 |
NXP |
Octal buffer/line driver | |
4 | 74AHC244-Q100 |
nexperia |
Octal buffer/line driver | |
5 | 74AHC244D |
nexperia |
Octal buffer/line driver | |
6 | 74AHC245 |
nexperia |
Octal bus transceiver | |
7 | 74AHC245 |
NXP |
Octal bus transceiver | |
8 | 74AHC245-Q100 |
nexperia |
Octal bus transceiver | |
9 | 74AHC245BQ |
nexperia |
Octal bus transceiver | |
10 | 74AHC245D |
nexperia |
Octal bus transceiver | |
11 | 74AHC245PW |
nexperia |
Octal bus transceiver | |
12 | 74AHC257 |
NXP |
Quad 2-input multiplexer |