TC74HC4049,4050AP/AF/AFT
2014-03-01
1
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC74HC4049AP, TC74HC4049AF, TC74HC4049AFT
TC74HC4050AP, TC74HC4050AF, TC74HC4050AFT
TC74HC4049AP/AF/AFT Hex
Buffer/Converter
(inverting)
TC74HC4050AP/AF/AFT Hex
Buffer/Converter
The TC74HC4049A and TC74HC4050A are high speed CMOS
HEX BUFFERs fabricated with silicon gate C
2
MOS technology.
They achieve the high speed operation similar to equivalent
LSTTL while maintaining the CMOS low power dissipation.
The TC74HC4049A is an inverting buffer, while the
TC74HC4050A is a non-inverting buffer. The internal circuits are
composed of 3-stages (HC4049A) or 2-stages (HC4050A) of
invertaers, which provided high noise immunity and stable
output.
Input protection circuits are different from those of other high
speed CMOS IC’s. They eliminate the diodes on the V
CC
side
thus providing of logic-level conversion from high-level volages
up to 15 V to low-level voltages.
They are useful for battery back up circuits, because input
voltage can be applied on IC’s which are not biased by V
CC
.
Features
• High speed: t
pd
= 9 ns (typ.) at V
CC
= 5 V
• Low power dissipation: I
CC
= 1 μA (max) at Ta = 25°C
• High noise immunity: V
NIH
= V
NIL
= 28% V
CC
(min)
• Output Drive Capability: 15 LSTTL loads
• Symmetrical output impedance: |I
OH
| = I
OL
= 6 mA (min)
• Balanced propagation delays: t
pLH
∼
−
t
pHL
• Wide operating voltage range: V
CC (opr)
= 2 V to 6 V
• Pin and function compatible with 4049B/4050B
TC74HC4049AP, TC74HC4050AP
TC74HC4049AF, TC74HC4050AF
TC74HC4049AFT, TC74HC4050AFT
Weight
DIP16-P-300-2.54A : 1.00 g (typ.)
SOP16-P-300-1.27A : 0.18 g (typ.)
TSSOP16-P-0044-0.65A : 0.06 g (typ.)
Start of commercial production
1986-05
