
CD74HC4049,
[ /Title
(CD74H
C4049,
CD74H
C4050)
Sub-
ect
(High
Speed
CMOS
Logic
Hex
Data sheet acquired from Harris Semiconductor
SCHS205A
February 1998 - Revised June 1999
Features
• Typical Propagation Delay: 6ns at VCC = 5V,
C
= 15pF, TA = 25oC
L
• High-to-Low Voltage Level Converter for up to V
• Fanout (Over Temperature Range)
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
• Wide Operating Temperature Range . . .–55
• Balanced Propagation Delay and Transition Times
• Significant Power Reduction Compared to LSTTL
Logic ICs
• HC Types
- 2V to 6V Operation
- High Noise Immunity: N
V
= 5V
CC
= 30%, NIH= 30%of VCCat
IL
o
= 16V
l
C to 125oC
CD74HC4050
High-Speed CMOS Logic
Hex Buffers, Inverting and Non-Inverting
Description
The CD74HC4049 and CD74HC4050 are fabricated with
high-speed silicon gate technology. They have a modified
input protection structure that enables these parts to be
used as logic level translators which convert high-level logic
to a low-level logic while operating off the low-level logic
supply. For example, 15-V input pulse levels can be downconverted to 0-V to 5-V logic levels. The modified input
protection structure protects the input from negative
electrostatic discharge. These parts also can be used as
simple buffers or inverters without level translation. The
CD74HC4049 and CD74HC4050 are enhanced versions of
equivalent CMOS types.
Ordering Information
TEMP. RANGE
PART NUMBER
CD74HC4049E –55 to 125 16 Ld PDIP E16.3
(oC) PACKAGE
PKG.
NO.
Pinout
CD74HC4050E –55 to 125 16 Ld PDIP E16.3
CD74HC4049M –55 to 125 16 Ld SOIC M16.15
CD74HC4050M –55 to 125 16 Ld SOIC M16.15
CD74HC4050PW –55 to 125 16 Ld TSSOP
NOTES:
1. When ordering, use the entire partnumber. Add the suffix 96 to
the M suffix or the R suffix to the PW package to obtain the
variant in the tape and reel.
2. Wafer and die is available which meets all electrical
specifications. Please contact your local sales office or
customer service for ordering information.
CD74HC4049, CD74HC4050
(PDIP, SOIC, TSSOP)
TOP VIEW
4049 4050 4050 4049
NC
6Y
6A
NC
5Y
5A
4Y
4A
NC
6Y
6A
NC
5Y
5A
4Y
4A
V
CC
1Y
1A
2Y
2A
3Y
3A
GND
V
CC
1Y
1A
2Y
2A
3Y
3A
GND
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
Copyright
© 1999 Texas Instruments Incorporated
1

CD74HC4049, CD74HC4050
Absolute Maximum Ratings Thermal Information
DC Supply Voltage, VCC. . . . . . . . . . . . . . . . . . . . . . . . –0.5V to 7V
DC Input Diode Current, I
IK
For VI < –0.5V or VI > VCC + 0.5V . . . . . . . . . . . . . . . . . . . . .±20mA
DC Output Diode Current, I
OK
For VO < –0.5V or VO > VCC + 0.5V. . . . . . . . . . . . . . . . . . . .±20mA
DC Output Source or Sink Current per Output Pin, I
O
For VO > –0.5V or VO < VCC + 0.5V. . . . . . . . . . . . . . . . . . . .±25mA
DC VCC or Ground Current, I
CC orIGND
. . . . . . . . . . . . . . . . . .±50mA
Operating Conditions
Temperature Range (TA) . . . . . . . . . . . . . . . . . . . . .–55oC to 125oC
Supply Voltage Range, V
HC Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2V to 6V
HCT Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4.5V to 5.5V
DC Input or Output Voltage, VI, VO . . . . . . . . . . . . . . . . . 0V to V
Input Rise and Fall Time
2V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1000ns (Max)
4.5V. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 500ns (Max)
6V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 400ns (Max)
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
3. θJA is measured with the component mounted on an evaluation PC board in free air.
CC
Thermal Resistance (Typical, Note 3) θJA (oC/W)
PDIP Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
SOIC Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
TSSOP Package . . . . . . . . . . . . . . . . . . . . . . . . . . . 149
Maximum Junction Temperature (Hermetic Pac kage or Die) . . .175oC
Maximum Junction Temperature (Plastic Package) . . . . . . . . 150oC
Maximum Storage Temperature Range . . . . . . . . . –65oC to 150oC
Maximum Lead Temperature (Soldering 10s). . . . . . . . . . . . .300oC
(SOIC - Lead Tips Only)
V
CC
VOLTAGE
CC
RELATIONSHIPS
MAXIMUM LIMITS
V
l
+16V
+7V
DC Electrical Specifications
TEST
CONDITIONS
PARAMETER SYMBOL
HC TYPES
High Level Input
Voltage
Low Level Input
Voltage
High Level Output
Voltage
V
IH
V
IL
V
OH
CMOS Loads
High Level Output
Voltage
TTL Loads
Low Level Output
V
OL
Voltage
CMOS Loads
Low Level Output
Voltage
TTL Loads
Input Leakage
Current
Quiescent Device
I
I
CC
I
Current
NOTE: For dual-supply systems theorectical worst case (V
(V) IO(mA) MIN TYP MAX MIN MAX MIN MAX
I
- - 2 1.5 - - 1.5 - 1.5 - V
- - 2 - - 0.5 - 0.5 - 0.5 V
VIHor VIL–0.02 2 1.9 - - 1.9 - 1.9 - V
–0.02 4.5 4.4 - - 4.4 - 4.4 - V
–0.02 6 5.9 - - 5.9 - 5.9 - V
–4 4.5 3.98 - - 3.84 - 3.7 - V
–5.2 6 5.48 - - 5.34 - 5.2 - V
VIHor VIL0.02 2 - - 0.1 - 0.1 - 0.1 V
0.02 4.5 - - 0.1 - 0.1 - 0.1 V
0.02 6 - - 0.1 - 0.1 - 0.1 V
4 4.5 - - 0.26 - 0.33 - 0.4 V
5.2 6 - - 0.26 - 0.33 - 0.4 V
VCC or
-6--±0.1 - ±1-±1µA
GND
15 - 6 - - ±0.5 - ±5-±5
VCC or
0 6 - - 2 - 20 - 40 µA
GND
o
25
V
CC
C –40oC TO 85oC
–55oC TO
125oC
(V)
4.5 3.15 - - 3.15 - 3.15 - V
6 4.2 - - 4.2 - 4.2 - V
4.5 - - 1.35 - 1.35 - 1.35 V
6 - - 1.8 - 1.8 - 1.8 V
= 2.4V, VCC = 5.5V) specification is 1.8mA.
I
UNITSV
3

CD74HC4049, CD74HC4050
Switching Specifications Input t
PARAMETER SYMBOL
HC TYPES
Propagation Delay,
t
PLH,tPHL
nA to nY HC4049
nA to nY HC4050
Transition Times (Figure 1) t
Input Capacitance C
Power Dissipation Capacitance
(Notes 4, 5)
TLH
, t
I
C
PD
NOTES:
4. C
is used to determine the dynamic power consumption, per gate.
PD
5. PD = V
2
fi(CPD + CL) where fi = Input Frequency, CL = Output Load Capacitance, VCC = Supply Voltage.
CC
Test Circuit and Waveform
, tf = 6ns
r
TEST
25
o
C
–40oC TO
85oC
–55oC TO
CONDITIONS VCC(V)
CL= 50pF 2 - - 85 - 105 - 130 ns
4.5 - - 17 - 21 - 26 ns
6 - - 14 - 18 - 22 ns
C
= 15pF 5 - 6 - - - - - ns
L
CL= 50pF 2 - - 75 - 95 - 110 ns
THL
4.5 - - 15 - 19 - 22 ns
6 - - 13 - 16 - 19 ns
- - - - 10 - 10 - 10 pF
-5-35-----pF
125oC
UNITSMIN TYP MAX MIN MAX MIN MAX
tr = 6ns tf = 6ns
V
t
TLH
CC
GND
INPUT
t
INVERTING
OUTPUT
THL
t
PHL
90%
50%
10%
t
90%
50%
10%
PLH
FIGURE 1. HC AND HCU TRANSITION TIMES AND PROPAGATION DELAY TIMES, COMBINATION LOGIC
4

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