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74HC2G125; 74HCT2G125
Dual buffer/line driver; 3-state
Rev. 5 — 17 March 2014
Product data sheet
1. General description
The 74HC2G125; 74HC2G125 are dual buffer/line drivers with 3-state outputs controlled
by the output enable inputs (nOE). Inputs include clamp diodes which enable the use of
current limiting resistors to interface inputs to voltages in excess of VCC.
2. Features and benefits
Wide supply voltage range from 2.0 V to 6.0 V
Input levels:
For 74HC2G125: CMOS level
For 74HCT2G125: TTL level
Symmetrical output impedance
High noise immunity
Low power dissipation
Balanced propagation delays
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from 40 C to +85 C and 40 C to +125 C
3. Ordering information
Table 1. Ordering information
Type number
Package
Temperature range Name
74HC2G125DP 40 C to +125 C TSSOP8
74HCT2G125DP
74HC2G125DC 40 C to +125 C VSSOP8
74HCT2G125DC
74HC2G125GD 40 C to +125 C XSON8
74HCT2G125GD
Description
plastic thin shrink small outline package; 8 leads;
body width 3 mm; lead length 0.5 mm
Version
SOT505-2
plastic very thin shrink small outline package; 8 leads; SOT765-1
body width 2.3 mm
plastic extremely thin small outline package; no leads; SOT996-2
8 terminals; body 3 2 0.5 mm

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Nexperia
74HC2G125; 74HCT2G125
Dual buffer/line driver; 3-state
4. Marking
Table 2. Marking codes
Type number
74HC2G125DP
74HCT2G125DP
74HC2G125DC
74HCT2G125DC
74HC2G125GD
74HCT2G125GD
Marking code[1]
H25
T25
H25
T25
H25
T25
[1] The pin 1 indicator is located on the lower left corner of the device, below the marking code.
5. Functional diagram
2 1A
1Y 6
1 1OE
5 2A
2Y 3
7 2OE
mce185
Fig 1. Logic symbol
2
11
EN1
6
5
7
2
EN2
3
mce186
Fig 2. IEC logic symbol
6. Pinning information
6.1 Pinning
AY
OE
mna120
Fig 3. Logic diagram (one driver)
74HC2G125
74HCT2G125
1OE 1
1A 2
2Y 3
GND 4
8 VCC
7 2OE
6 1Y
5 2A
001aae074
Fig 4. Pin configuration SOT505-2 (TSSOP8) and
SOT765-1 (VSSOP8)
74HC2G125
74HCT2G125
1OE 1
1A 2
8 VCC
7 2OE
2Y 3
6 1Y
GND 4
5 2A
001aai333
Transparent top view
Fig 5. Pin configuration SOT996-2 (XSON8)
74HC_HCT2G125
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 17 March 2014
© Nexperia B.V. 2017. All rights reserved
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74HC2G125; 74HCT2G125
Dual buffer/line driver; 3-state
6.2 Pin description
Table 3. Pin description
Symbol
Pin
1OE, 2OE
1, 7
1A, 2A
2, 5
GND
4
1Y, 2Y
6, 3
VCC
8
7. Functional description
Description
output enable input (active LOW)
data input
ground (0 V)
data output
supply voltage
Table 4.
Control
nOE
L
L
H
Function table[1]
Input
nA
L
H
X
Output
nY
L
H
Z
[1] H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
8. Limiting values
Table 5. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
Min Max Unit
VCC
IIK
IOK
IO
ICC
IGND
Tstg
Ptot
supply voltage
input clamping current
output clamping current
output current
supply current
ground current
storage temperature
total power dissipation
VI < 0.5 V or VI > VCC + 0.5 V
VO < 0.5 V or VO > VCC + 0.5 V
VO = 0.5 V to (VCC + 0.5 V)
Tamb = 40 C to +125 C
0.5
[1] -
[1] -
[1] -
-
70
65
[2] -
+7.0
20
20
35
70
-
+150
300
V
mA
mA
mA
mA
mA
C
mW
[1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
[2] For TSSOP8 package: above 55 C the value of Ptot derates linearly with 2.5 mW/K.
For VSSOP8 package: above 110 C the value of Ptot derates linearly with 8 mW/K.
For XSON8 package: above 45 C the value of Ptot derates linearly with 2.4 mW/K.
74HC_HCT2G125
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 17 March 2014
© Nexperia B.V. 2017. All rights reserved
3 of 15

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Nexperia
74HC2G125; 74HCT2G125
Dual buffer/line driver; 3-state
9. Recommended operating conditions
Table 6. Recommended operating conditions
Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
VCC
VI
VO
Tamb
t/V
supply voltage
input voltage
output voltage
ambient temperature
input transition rise and fall rate VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
10. Static characteristics
74HC2G125
Min Typ
2.0 5.0
0-
0-
40 +25
--
- 1.67
--
Max
6.0
VCC
VCC
+125
625
139
83
74HCT2G125
Min Typ
4.5 5.0
0-
0-
40 +25
--
- 1.67
--
Max
5.5
VCC
VCC
+125
-
139
-
Unit
V
V
V
C
ns/V
ns/V
ns/V
Table 7. Static characteristics
Voltages are referenced to GND (ground = 0 V). All typical values are measured at Tamb = 25 C.
Symbol Parameter
Conditions
Tamb = 40 C to +85 C Tamb = 40 C to +125 C Unit
Min Typ Max
Min
Max
74HC2G125
VIH HIGH-level input VCC = 2.0 V
voltage
VCC = 4.5 V
1.5 1.2
3.15 2.4
-
-
1.5
3.15
VCC = 6.0 V
4.2 3.2
-
4.2
VIL LOW-level input VCC = 2.0 V
voltage
VCC = 4.5 V
- 0.8 0.5
- 2.1 1.35
-
-
VCC = 6.0 V
- 2.8 1.8
-
VOH HIGH-level
VI = VIH or VIL
output voltage
IO = 20 A; VCC = 2.0 V
1.9 2.0
-
1.9
IO = 20 A; VCC = 4.5 V
4.4 4.5
-
4.4
IO = 20 A; VCC = 6.0 V
5.9 6.0
-
5.9
IO = 6.0 mA; VCC = 4.5 V
3.84 4.32
-
3.7
IO = 7.8 mA; VCC = 6.0 V
5.34 5.81
-
5.2
VOL LOW-level output VI = VIH or VIL
voltage
IO = 20 A; VCC = 2.0 V
- 0 0.1
-
IO = 20 A; VCC = 4.5 V
- 0 0.1
-
IO = 20 A; VCC = 6.0 V
- 0 0.1
-
IO = 6.0 mA; VCC = 4.5 V
- 0.15 0.33
-
IO = 7.8 mA; VCC = 6.0 V
- 0.16 0.33
-
II
input leakage
VI = VCC or GND; VCC = 6.0 V
-
- 1.0
-
current
-V
-V
-V
0.5 V
1.35 V
1.8 V
-V
-V
-V
-V
-V
0.1 V
0.1 V
0.1 V
0.4 V
0.4 V
1.0 A
IOZ OFF-state output VI = VIH or VIL;
- - 5.0
-
current
VO = VCC or GND; VCC = 6.0 V
10 A
74HC_HCT2G125
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 17 March 2014
© Nexperia B.V. 2017. All rights reserved
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74HC2G125; 74HCT2G125
Dual buffer/line driver; 3-state
Table 7. Static characteristics …continued
Voltages are referenced to GND (ground = 0 V). All typical values are measured at Tamb = 25 C.
Symbol Parameter
Conditions
Tamb = 40 C to +85 C Tamb = 40 C to +125 C Unit
Min Typ Max
Min
Max
ICC supply current VI = VCC or GND; IO = 0 A; - - 10
VCC = 6.0 V
CI input capacitance
- 1.0 -
CO output
capacitance
- 1.5 -
-
-
-
20 A
- pF
- pF
74HCT2G125
VIH HIGH-level input VCC = 4.5 V to 5.5 V
voltage
2.0 1.6
-
2.0
-V
VIL LOW-level input VCC = 4.5 V to 5.5 V
voltage
- 1.2 0.8
-
0.8 V
VOH HIGH-level
VI = VIH or VIL; VCC = 4.5 V
output voltage
IO = 20 A
4.4 4.5
-
4.4
IO = 6.0 mA
3.84 4.32
-
3.7
VOL LOW-level output VI = VIH or VIL; VCC = 4.5 V
voltage
IO = 20 A
- 0 0.1
-
IO = 6.0 mA
- 0.16 0.33
-
II
input leakage
VI = VCC or GND; VCC = 5.5 V
-
- 1.0
-
current
-V
-V
0.1 V
0.4 V
1.0 A
IOZ
ICC
ICC
CI
CO
OFF-state output VI = VIH or VIL;
current
VO = VCC or GND; VCC = 5.5 V
supply current
VI = VCC or GND; IO = 0 A;
VCC = 5.5 V
additional supply per input; VCC = 4.5 V to 5.5 V;
current
VI = VCC 2.1 V; IO = 0 A
input capacitance
output
capacitance
-
-
-
-
-
- 5.0
- 10
- 375
1.0 -
1.5 -
-
-
-
-
-
10 A
20 A
410 A
- pF
- pF
11. Dynamic characteristics
Table 8. Dynamic characteristics
Voltages are referenced to GND (ground = 0 V); CL = 50 pF unless otherwise specified; for test circuit see Figure 8.
Symbol Parameter Conditions
Tamb = 40 C to +85 C Tamb = 40 C to +125 C Unit
Min Typ[1] Max
Min
Max
74HC2G125
tpd propagation nA to nY; see Figure 6
delay
VCC = 2.0 V
[2]
-
35 115
-
135 ns
VCC = 4.5 V
- 11 23
-
27 ns
VCC = 5.0 V; CL = 15 pF
VCC = 6.0 V
- 10 -
- 8 20
-
-
- ns
23 ns
74HC_HCT2G125
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 17 March 2014
© Nexperia B.V. 2017. All rights reserved
5 of 15