TC74HC4049AFT,TC74HC4050AFT
CMOS Digital Integrated Circuits
Silicon Monolithic
TC74HC4049AFT,TC74HC4050AFT
1. Functional Description
• Hex Buffer
TC74HC4049AFT: HEX BUFFER/CONVERTER (INVERTING)
TC74HC4050AFT: HEX BUFFER/CONVERTER
2. General
The TC74HC4049AFT and TC74HC4050AFT are high speed CMOS HEX BUFFERs fabricated with silicon gate
C2MOS technology.
They achieve the high speed operation similar to equivalent LSTTL while maintaining the CMOS low power
dissipation.
The TC74HC4049AFT is an inverting buffer, while the TC74HC4050AFT is a non-inverting buffer. The internal
circuits are composed of 3-stages (TC74HC4049AFT) or 2-stages (TC74HC4050AFT) of inverter, 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 VCC side thus providing of logic-level conversion from high-level voltages 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 VCC.
3. Features
(1)
Wide operating temperature range: Topr = -40 to 125 � (Note 1)
(2)
High speed: tpd = 9 ns (typ.) at VCC = 5.0 V
(3)
Low power dissipation: ICC = 1.0 µA (max) at Ta = 25 �
(4)
High noise immunity: VNIH = VNIL = 28 % VCC (min)
(5)
Symmetrical Output impedance: |IOH| = IOL = 6 mA (min)
(6)
Balanced propagation delays: tPLH ≈ tPHL
(7)
Wide operating voltage range: VCC(opr) = 2.0 V to 6.0 V
(8) Power-down protection is provided on all inputs.
Note 1: Operating Range spec of Topr = -40 � to 125 � is applicable only for the products which manufactured after
July 2020.
4. Packaging
TSSOP16
Start of commercial production
2020-07
©2020-2021
Toshiba Electronic Devices & Storage Corporation
1
2021-01-07
Rev.2.0
TC74HC4049AFT,TC74HC4050AFT
5. Pin Assignment
TC74HC4049AFT
TC74HC4050AFT
6. Marking
TC74HC4049AFT
TC74HC4050AFT
7. IEC Logic Symbol
TC74HC4049AFT
TC74HC4050AFT
8. Truth Table
Input A
Output Y
(TC74HC4049AFT)
L
H
L
H
L
H
©2020-2021
Toshiba Electronic Devices & Storage Corporation
Output Y
(TC74HC4050AFT)
2
2021-01-07
Rev.2.0
TC74HC4049AFT,TC74HC4050AFT
9. Internal Equivalent Circuit
TC74HC4049AFT
TC74HC4050AFT
10. Absolute Maximum Ratings (Note)
Characteristics
Symbol
Supply voltage
VCC
Input voltage
VIN
Output voltage
Note
Rating
Unit
-0.5 to 7.0
V
(Note 1)
-0.5 to 18.0
V
VOUT
-0.5 to VCC + 0.5
V
IIK
-20
mA
Output diode current
IOK
±20
mA
Output current
IOUT
±35
mA
VCC/ground current
ICC
Power dissipation
PD
Storage temperature
Tstg
Input diode current
(Note 2)
±75
mA
180
mW
-65 to 150
�
Note:
Exceeding any of the absolute maximum ratings, even briefly, lead to deterioration in IC performance or even
destruction.
Using continuously under heavy loads (e.g. the application of high temperature/current/voltage and the
significant change in temperature, etc.) may cause this product to decrease in the reliability significantly even
if the operating conditions (i.e. operating temperature/current/voltage, etc.) are within the absolute maximum
ratings and the operating ranges.
Please design the appropriate reliability upon reviewing the Toshiba Semiconductor Reliability Handbook
(“Handling Precautions”/“Derating Concept and Methods”) and individual reliability data (i.e. reliability test report
and estimated failure rate, etc).
Note 1: DC input voltage (VIN) specified is measured to GND and is not related to VCC.
The operating range is 0 V to 15 V and it is possible to convert logic-levels from 15 V to 5 V or 5 V to 2 V.
Note 2: 180 mW in the range of Ta = -40 to 85 �. From Ta = 85 to 125 � a derating factor of -3.25 mW/� shall be
applied until 50 mW.
©2020-2021
Toshiba Electronic Devices & Storage Corporation
3
2021-01-07
Rev.2.0
TC74HC4049AFT,TC74HC4050AFT
11. Operating Ranges (Note)
Characteristics
Symbol
Note
Test Condition
Rating
Unit
Supply voltage
VCC
2.0 to 6.0
V
Input voltage
VIN
0 to 15.0
V
Output voltage
VOUT
Operating temperature
Topr
Input rise and fall times
tr,tf
0 to VCC
V
-40 to 125
�
VCC = 2.0 V
0 to 1000
ns
VCC = 4.5 V
0 to 500
VCC = 6.0 V
0 to 400
(Note 1)
Note:
The operating ranges must be maintained to ensure the normal operation of the device.
Unused inputs must be tied to either VCC or GND.
Note 1: Operating Range spec of Topr = -40 � to 125 � is applicable only for the products which manufactured after
July 2020.
12. Electrical Characteristics
12.1. DC Characteristics (Unless otherwise specified, T a = 25 �)
Characteristics
High-level input voltage
Low-level input voltage
High-level output voltage
Low-level output voltage
Symbol
Test Condition
VCC (V)
Min
Typ.
Max
Unit
VIH
�
2.0
1.50
�
�
V
4.5
3.15
�
�
6.0
4.20
�
�
2.0
�
�
0.50
4.5
�
�
1.35
VIL
VOH
VOL
Input leakage current
IIN
Quiescent supply current
ICC
�
VIN = VIH or VIL
VIN = VIH or VIL
6.0
�
�
1.80
2.0
1.9
2.0
�
4.5
4.4
4.5
�
6.0
5.9
6.0
�
IOH = -6 mA
4.5
4.18
4.31
�
IOH = -7.8 mA
6.0
5.68
5.80
�
IOL = 20 µA
2.0
�
0.0
0.1
4.5
�
0.0
0.1
IOH = -20 µA
6.0
�
0.0
0.1
IOL = 6 mA
4.5
�
0.17
0.26
IOL = 7.8 mA
V
V
V
6.0
�
0.18
0.26
VIN = VCC or GND
6.0
�
�
±0.1
µA
VIN = 15 V
6.0
�
�
±0.5
µA
VIN = VCC or GND
6.0
�
�
1.0
µA
©2020-2021
Toshiba Electronic Devices & Storage Corporation
4
2021-01-07
Rev.2.0
TC74HC4049AFT,TC74HC4050AFT
12.2. DC Characteristics (Unless otherwise specified, T a = -40 to 85 �)
Characteristics
High-level input voltage
Low-level input voltage
High-level output voltage
Low-level output voltage
Input leakage current
Quiescent supply current
Symbol
Test Condition
VCC (V)
Min
Max
Unit
VIH
�
2.0
1.50
�
V
4.5
3.15
�
6.0
4.20
�
2.0
�
0.50
4.5
�
1.35
6.0
�
1.80
2.0
1.9
�
4.5
4.4
�
VIL
VOH
VOL
IIN
ICC
�
VIN = VIH or VIL
IOH = -20 µA
V
V
6.0
5.9
�
IOH = -6 mA
4.5
4.13
�
IOH = -7.8 mA
6.0
5.63
�
IOL = 20 µA
2.0
�
0.1
4.5
�
0.1
6.0
�
0.1
IOL = 6 mA
4.5
�
0.33
IOL = 7.8 mA
6.0
�
0.33
VIN = VCC or GND
6.0
�
±1.0
µA
VIN = 15 V
6.0
�
±5.0
µA
VIN = VCC or GND
6.0
�
10.0
µA
VIN = VIH or VIL
V
12.3. DC Characteristics (Note) (Unless otherwise specified, T a = -40 to 125 �)
Characteristics
High-level input voltage
Low-level input voltage
High-level output voltage
Low-level output voltage
Symbol
VIH
VOH
VOL
IIN
Quiescent supply current
ICC
VCC (V)
Min
Max
Unit
2.0
1.50
�
V
4.5
3.15
�
6.0
4.20
�
2.0
�
0.50
4.5
�
1.35
6.0
�
1.80
2.0
1.9
�
4.5
4.4
�
6.0
5.9
�
IOH = -6 mA
4.5
3.7
�
IOH = -7.8 mA
6.0
5.2
�
IOL = 20 µA
2.0
�
0.1
4.5
�
0.1
�
VIL
Input leakage current
Note:
Test Condition
�
VIN = VIH or VIL
VIN = VIH or VIL
IOH = -20 µA
6.0
�
0.1
IOL = 6 mA
4.5
�
0.4
IOL = 7.8 mA
V
V
V
6.0
�
0.4
VIN = VCC or GND
6.0
�
±1.0
µA
VIN = 15 V
6.0
�
±5.0
µA
VIN = VCC or GND
6.0
�
20.0
µA
Operating Range spec of Topr = -40 � to 125 � is applicable only for the products which manufactured after
July 2020.
©2020-2021
Toshiba Electronic Devices & Storage Corporation
5
2021-01-07
Rev.2.0
TC74HC4049AFT,TC74HC4050AFT
12.4. AC Characteristics (Unless otherwise specified, T a = 25 �, Input: t r = t f = 6 ns)
Characteristics
Output transition time
Propagation delay time
Symbol
Note
Test
Condition
CL (pF)
VCC (V)
Min
Typ.
Max
Unit
�
50
2.0
�
25
60
ns
4.5
�
6
12
6.0
�
5
10
2.0
�
30
75
4.5
�
9
15
6.0
�
8
13
2.0
�
45
100
4.5
�
14
20
6.0
tTLH,tTHL
tPLH,tPHL
�
50
150
Input capacitance
CIN
Power dissipation
capacitance
CPD
(Note 1)
ns
�
12
17
�
�
5
10
pF
�
�
26
�
pF
Note 1: CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating current
consumption without load. Average operating current can be obtained by the equation.
ICC(opr) = CPD × VCC × fIN + ICC/6 (per gate)
12.5. AC Characteristics
(Unless otherwise specified, T a = -40 to 85 �, Input: t r = t f = 6 ns)
Characteristics
Output transition time
Propagation delay time
Symbol
Test Condition
CL (pF)
VCC (V)
Min
Max
Unit
tTLH,tTHL
�
50
2.0
�
75
ns
4.5
�
15
6.0
�
13
2.0
�
95
4.5
�
19
6.0
�
16
2.0
�
145
4.5
�
29
6.0
�
25
�
10
pF
tPLH,tPHL
�
50
150
Input capacitance
CIN
�
ns
12.6. AC Characteristics (Note)
(Unless otherwise specified, T a = -40 to 125 �, Input: t r = t f = 6 ns)
Characteristics
Output transition time
Propagation delay time
Symbol
Test Condition
CL (pF)
VCC (V)
Min
Max
Unit
tTLH,tTHL
�
50
2.0
�
85
ns
4.5
�
17
6.0
�
15
2.0
�
110
4.5
�
22
6.0
�
18
2.0
�
175
4.5
�
35
6.0
�
31
�
10
tPLH,tPHL
�
50
150
Input capacitance
Note:
CIN
�
ns
pF
Operating Range spec of Topr = -40 � to 125 � is applicable only for the products which manufactured after
July 2020.
©2020-2021
Toshiba Electronic Devices & Storage Corporation
6
2021-01-07
Rev.2.0
TC74HC4049AFT,TC74HC4050AFT
Package Dimensions
Unit: mm
Weight: 0.06 g (typ.)
Package Name(s)
Nickname: TSSOP16
©2020-2021
Toshiba Electronic Devices & Storage Corporation
7
2021-01-07
Rev.2.0
TC74HC4049AFT,TC74HC4050AFT
RESTRICTIONS ON PRODUCT USE
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©2020-2021
Toshiba Electronic Devices & Storage Corporation
8
2021-01-07
Rev.2.0