74hc4049db NXP Semiconductors, 74hc4049db Datasheet - Page 2

• Manufacturer Part Number: 74hc4049db
• Description: 74hc4049 Hex Inverting High-to-low Level Shifter
• Manufacturer: NXP Semiconductors

Philips Semiconductors
FEATURES
GENERAL DESCRIPTION
The 74HC4049 is a high-speed Si-gate CMOS device and
is pin compatible with the “4049” of the “4000B” series. It
is specified in compliance with JEDEC standard no. 7A.
The 74HC4049 provides six inverting buffers with a
modified input protection structure, which has no diode
connected to V
therefore be used.
QUICK REFERENCE DATA
GND = 0 V; T
Note
1. C
ORDERING INFORMATION
See
December 1990
t
C
C
PHL
Output capability: standard
I
Hex inverting high-to-low level shifter
I
PD
CC
f
f
C
V
SYMBOL
i
o
“74HC/HCT/HCU/HCMOS Logic Package Information”
/t
CC
PD
= input frequency in MHz
L
category: SSI
PLH
= output frequency in MHz
(C
= output load capacitance in pF
P
= supply voltage in V
is used to determine the dynamic power dissipation (P
L
D
= C
V
amb
CC
PD
CC
2
. Input voltages of up to 15 V may
= 25 C; t
V
f
propagation delay nA to nY
input capacitance
power dissipation capacitance per buffer note 1
o
CC
) = sum of outputs
2
f
r
i
= t
+
f
= 6 ns
(C
PARAMETER
L
V
CC
2
f
o
) where:
2
.
This feature enables the inverting buffers to be used as
logic level translators, which will convert high level logic to
low level logic, while operating from a low voltage power
supply. For example 15 V logic (“4000B series”) can be
converted down to 2 V logic.
The actual input switch level remains related to the V
and is the same as mentioned in the family characteristics.
At the same time each part can be used as a simple
inverter without level translation.
APPLICATIONS
C
D
Converting 15 V logic (“4000B” series) down to 2 V logic.
L
in W):
= 15 pF; V
CONDITIONS
CC
= 5 V
8
3.5
14
TYPICAL
HC
Product specification
74HC4049
ns
pF
pF
UNIT
CC