SN74AUC125
QUADRUPLE BUS BUFFER GATE
WITH 3-STATE OUTPUTS
www.ti.com
SCES508A – NOVEMBER 2003 – REVISED MARCH 2005
FEATURES
•
VCC
1
14
13 4OE
12 4A
2
3
4
11 4Y
5
6
10 3OE
9 3A
7
8
3Y
•
•
•
•
•
1A
1Y
2OE
2A
2Y
1OE
•
RGY PACKAGE
(TOP VIEW)
Optimized for 1.8-V Operation and Is 3.6-V I/O
Tolerant to Support Mixed-Mode Signal
Operation
Ioff Supports Partial-Power-Down Mode
Operation
Sub-1-V Operable
Max tpd of 2.1 ns at 1.8 V
Low Power Consumption, 10-µA Max ICC
±8-mA Output Drive at 1.8 V
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1500-V Charged-Device Model (C101)
GND
•
DESCRIPTION/ORDERING INFORMATION
This quadruple bus buffer gate is designed for 0.8-V to 2.7-V VCC operation, but is designed specifically for 1.6-V
to 1.95-V VCC operation.
The SN74AUC125 contains four independent line drivers with 3-state outputs. Each output is disabled when the
associated output-enable (OE) input is high.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs,
preventing damaging current backflow through the device when it is powered down.
ORDERING INFORMATION
PACKAGE (1)
TA
–40°C to 85°C
(1)
QFN – RGY
ORDERABLE PART NUMBER
Tape and reel
SN74AUC125RGYR
TOP-SIDE MARKING
MS125
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
FUNCTION TABLE
INPUTS
OE
A
OUTPUT
Y
L
H
H
L
L
L
H
X
Z
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2003–2005, Texas Instruments Incorporated
SN74AUC125
QUADRUPLE BUS BUFFER GATE
WITH 3-STATE OUTPUTS
www.ti.com
SCES508A – NOVEMBER 2003 – REVISED MARCH 2005
LOGIC DIAGRAM (POSITIVE LOGIC)
1OE
1A
2OE
2A
1
3OE
2
3
1Y
3A
4
4OE
5
6
2Y
4A
10
9
8
3Y
13
12
11
4Y
Absolute Maximum Ratings (1)
over operating free-air temperature range (unless otherwise noted)
VCC
MIN
MAX
Supply voltage range
–0.5
3.6
UNIT
V
range (2)
VI
Input voltage
–0.5
3.6
V
VO
Voltage range applied to any output in the high-impedance or power-off state (2)
–0.5
3.6
V
VO
Output voltage range (2)
–0.5
VCC + 0.5
IIK
Input clamp current
VI < 0
–50
mA
IOK
Output clamp current
VO < 0
–50
mA
IO
Continuous output current
±20
mA
±100
mA
Continuous current through VCC or GND
θJA
Package thermal
Tstg
Storage temperature range
(1)
(2)
(3)
2
impedance (3)
–65
V
47
°C/W
150
°C
Stresses beyond those listed under "absolute maximum ratings" may cause permanent damage to the device. These are stress ratings
only, and functional operation of the device at these or any other conditions beyond those indicated under "recommended operating
conditions" is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
The input negative-voltage and output voltage ratings may be exceeded if the input and output current ratings are observed.
The package thermal impedance is calculated in accordance with JESD 51-5.
SN74AUC125
QUADRUPLE BUS BUFFER GATE
WITH 3-STATE OUTPUTS
www.ti.com
Recommended Operating Conditions
VCC
SCES508A – NOVEMBER 2003 – REVISED MARCH 2005
(1)
Supply voltage
VCC = 0.8 V
VIH
High-level input voltage
VCC = 1.1 V to 1.95 V
VCC = 2.3 V to 2.7 V
MIN
MAX
0.8
2.7
Low-level input voltage
VI
Input voltage
0.65 × VCC
Output voltage
IOH
High-level output current
IOL
Low-level output current
∆t/∆v
Input transition rise or fall rate
TA
Operating free-air temperature
(1)
V
1.7
0
VCC = 1.1 V to 1.95 V
0.35 × VCC
VCC = 2.3 V to 2.7 V
VO
V
VCC
VCC = 0.8 V
VIL
UNIT
V
0.7
0
3.6
Active state
0
VCC
3-state
0
3.6
VCC = 0.8 V
–0.7
VCC = 1.1 V
–3
VCC = 1.4 V
–5
VCC = 1.65 V
–8
VCC = 2.3 V
–9
VCC = 0.8 V
0.7
VCC = 1.1 V
3
VCC = 1.4 V
5
VCC = 1.65 V
8
VCC = 2.3 V
9
–40
V
V
mA
mA
20
ns/V
85
°C
All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
3
SN74AUC125
QUADRUPLE BUS BUFFER GATE
WITH 3-STATE OUTPUTS
www.ti.com
SCES508A – NOVEMBER 2003 – REVISED MARCH 2005
Electrical Characteristics
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
VOH
VOL
(1)
VCC
MIN
TYP (1) MAX
IOH = –100 µA
0.8 V to 2.7 V
IOH = –0.7 mA
0.8 V
IOH = –3 mA
1.1 V
0.8
IOH = –5 mA
1.4 V
1
IOH = –8 mA
1.65 V
1.2
IOH = –9 mA
2.3 V
1.8
IOL = 100 µA
0.8 V to 2.7 V
IOL = 0.7 mA
0.8 V
IOL = 3 mA
1.1 V
0.3
IOL = 5 mA
1.4 V
0.4
IOL = 8 mA
1.65 V
0.45
IOL = 9 mA
2.3 V
0.6
UNIT
VCC – 0.1
0.55
V
0.2
0.25
V
II
VI = VCC or GND
0 to 2.7 V
±5
µA
Ioff
VI or VO = 2.7 V
0
±10
µA
IOZ
VO = VCC or GND
2.7 V
±10
µA
ICC
VI = VCC or GND,
10
µA
Ci
VI = VCC or GND
2.5 V
2.5
pF
Co
VO = VCC or GND
2.5 V
5
pF
IO = 0
0.8 V to 2.7 V
All typical values are at TA = 25°C.
Switching Characteristics
over recommended operating free-air temperature range, CL = 15 pF (unless otherwise noted) (see Figure 1)
VCC = 1.2 V
± 0.1 V
VCC = 1.5 V
± 0.1 V
FROM
(INPUT)
TO
(OUTPUT)
VCC = 0.8 V
TYP
MIN
MAX
tpd
A
Y
5.8
0.7
3.7
0.6
ten
OE
Y
7.5
0.9
4.1
tdis
OE
Y
6.4
1.6
5.1
PARAMETER
MIN MAX
VCC = 1.8 V
± 0.15 V
VCC = 2.5 V
± 0.2 V
UNIT
MIN
TYP
MAX
MIN
MAX
2.6
0.5
1
2.1
0.5
1.3
ns
0.7
2.9
0.6
1
2.2
0.6
1.4
ns
1.5
3.6
1.4
2.4
3.5
1
2.6
ns
Switching Characteristics
over recommended operating free-air temperature range, CL = 30 pF (unless otherwise noted) (see Figure 1)
FROM
(INPUT)
TO
(OUTPUT)
tpd
A
ten
OE
tdis
OE
PARAMETER
4
VCC = 1.8 V
± 0.15 V
VCC = 2.5 V
± 0.2 V
UNIT
MIN
TYP
MAX
MIN
MAX
Y
0.5
1.8
2.6
0.5
2.1
ns
Y
0.6
1.6
2.8
0.6
2.3
ns
Y
1.2
2.4
3.4
0.8
2.3
ns
SN74AUC125
QUADRUPLE BUS BUFFER GATE
WITH 3-STATE OUTPUTS
www.ti.com
SCES508A – NOVEMBER 2003 – REVISED MARCH 2005
Operating Characteristics
TA = 25°C
TEST
CONDITIONS
PARAMETER
Cpd
Power
dissipation
capacitance
Outputs
enabled
Outputs
disabled
VCC = 0.8 V
VCC = 1.2 V
VCC = 1.5 V
VCC = 1.8 V
VCC = 2.5 V
TYP
TYP
TYP
TYP
TYP
15
15
15
16
17
2
2
2
3
4
f = 10 MHz
UNIT
pF
5
SN74AUC125
QUADRUPLE BUS BUFFER GATE
WITH 3-STATE OUTPUTS
www.ti.com
SCES508A – NOVEMBER 2003 – REVISED MARCH 2005
PARAMETER MEASUREMENT INFORMATION
2 × VCC
S1
RL
From Output
Under Test
Open
GND
CL
(see Note A)
TEST
S1
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open
2 × VCC
GND
RL
LOAD CIRCUIT
VCC
CL
RL
V∆
0.8 V
1.2 V ± 0.1 V
1.5 V ± 0.1 V
1.8 V ± 0.15 V
2.5 V ± 0.2 V
1.8 V ± 0.15 V
2.5 V ± 0.2 V
15 pF
15 pF
15 pF
15 pF
15 pF
30 pF
30 pF
2 kΩ
2 kΩ
2 kΩ
2 kΩ
2 kΩ
1 kΩ
500 Ω
0.1 V
0.1 V
0.1 V
0.15 V
0.15 V
0.15 V
0.15 V
VCC
Timing Input
VCC/2
0V
tw
tsu
th
VCC
VCC/2
Input
VCC/2
VCC
VCC/2
Data Input
VCC/2
0V
0V
VOLTAGE WAVEFORMS
PULSE DURATION
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
VCC
VCC/2
Input
VCC/2
0V
tPHL
tPLH
VOH
VCC/2
Output
VCC/2
VOL
tPHL
VCC/2
VOL
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
VCC/2
VCC/2
0V
tPZL
tPLZ
VCC
VCC/2
tPZH
VOH
Output
Output
Waveform 1
S1 at 2 × VCC
(see Note B)
tPLH
VCC/2
VCC
Output
Control
Output
Waveform 2
S1 at GND
(see Note B)
VOL + V∆
VOL
tPHZ
VCC/2
VOH − V∆
VOH
≈0 V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low, except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high, except when disabled by the output control.
C. All input pulses are supplied by generators having the following characteristics: PRR ≤ 10 MHz, ZO = 50 Ω, slew rate ≥ 1 V/ns.
D. The outputs are measured one at a time, with one transition per measurement.
E. tPLZ and tPHZ are the same as tdis.
F. tPZL and tPZH are the same as ten.
G. tPLH and tPHL are the same as tpd.
H. All parameters and waveforms are not applicable to all devices.
Figure 1. Load Circuit and Voltage Waveforms
6
PACKAGE OPTION ADDENDUM
www.ti.com
14-Oct-2022
PACKAGING INFORMATION
Orderable Device
Status
(1)
Package Type Package Pins Package
Drawing
Qty
Eco Plan
(2)
Lead finish/
Ball material
MSL Peak Temp
Op Temp (°C)
Device Marking
(3)
Samples
(4/5)
(6)
SN74AUC125RGYR
ACTIVE
VQFN
RGY
14
3000
RoHS & Green
NIPDAU
Level-2-260C-1 YEAR
-40 to 85
MS125
(1)
The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2)
RoHS: TI defines "RoHS" to mean semiconductor products that are compliant with the current EU RoHS requirements for all 10 RoHS substances, including the requirement that RoHS substance
do not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered at high temperatures, "RoHS" products are suitable for use in specified lead-free processes. TI may
reference these types of products as "Pb-Free".
RoHS Exempt: TI defines "RoHS Exempt" to mean products that contain lead but are compliant with EU RoHS pursuant to a specific EU RoHS exemption.
Green: TI defines "Green" to mean the content of Chlorine (Cl) and Bromine (Br) based flame retardants meet JS709B low halogen requirements of
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