54HCT240
54HCT240 is High-Speed CMOS Logic Octal Buffer/Line Drivers manufactured by Texas Instruments.
- Part of the 54HC240 comparator family.
- Part of the 54HC240 comparator family.
Features
- HC/HCT240 Inverting
- HC/HCT241 Non-inverting
- HC/HCT244 Non-inverting
- Typical propagation delay = 8ns at VCC = 5 V,
CL = 15 p F, TA = 25℃ for HC240
- Three-state outputs
- Buffered inputs
- High-current bus driver outputs
- Fanout (over temperature range)
- Standard outputs: 10 LSTTL loads
- Bus driver outputs: 15 LSTTL loads
- Wide operating temperature range:
- 55℃ to 125℃
- Balanced propagation delay and transition times
- Significant power reduction pared to LSTTL Logic ICs
- HC types:
- 2 V to 6 V operation
- High noise immunity: NIL = 30%, NIH = 30% of
VCC at VCC = 5 V
- HCT types:
- 4.5 V to 5.5 V operation
- Direct LSTTL input logic patibility,
VIL = 0.8 V (max), VIH = 2 V (min)
- CMOS input patibility, II ≤ 1μA at VOL, VOH
2 Description
The ’HC240 and ’HCT240 are inverting three-state buffers having two active-low output enables. The CD74HC241, ’HCT241, ’HC244 and ’HCT244 are non-inverting three-state buffers that differ only in that the 241 has one active-high and one active-low output enable, and the 244 has two active-low output enables. All three types have identical pinouts.
PART NUMBER CD74HC240 CD54HC240
CD74HCT240
CD54HCT240 CD74HC241
CD74HCT241 CD54HCT241 CD74HC244 CD54HC244 CD74HCT244 CD54HCT244
Package Information
PACKAGE(1)
BODY SIZE (NOM)
M (SOIC, 20)
12.80 mm × 7.50 mm
E (PDIP, 20)
25.40 mm × 6.35 mm
F (CDIP, 20)
26.92 mm × 6.92...
