TI V62/09618-01XE

SN74AVCH4T245-EP
www.ti.com........................................................................................................................................................................................... SCES771 – DECEMBER 2008
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
FEATURES
1
•
•
•
•
•
•
•
Control Inputs VIH/VIL Levels Are Referenced to
VCCA Voltage
Fully Configurable Dual-Rail Design Allows
Each Port to Operate Over the Full 1.2-V to
3.6-V Power-Supply Range
I/Os Are 4.6-V Tolerant
Ioff Supports Partial Power-Down-Mode
Operation
Bus Hold on Data Inputs Eliminates the Need
for External Pullup/Pulldown Resistors
Max Data Rates
– 380 Mbps (1.8-V to 3.3-V Translation)
– 200 Mbps (<1.8-V to 3.3-V Translation)
– 200 Mbps (Translate to 2.5 V or 1.8 V)
– 150 Mbps (Translate to 1.5 V)
– 100 Mbps (Translate to 1.2 V)
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
ESD Protection Exceeds JESD 22
– 8000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
•
SUPPORTS DEFENSE, AEROSPACE,
AND MEDICAL APPLICATIONS
•
•
•
•
Controlled Baseline
One Assembly/Test Site
One Fabrication Site
Available in Military (–55°C/125°C)
Temperature Range (1)
Extended Product Life Cycle
Extended Product-Change Notification
Product Traceability
•
•
•
(1)
Additional temperature ranges are available – contact factory
2B1
1B1
1B2
2OE
RSV PACKAGE
(TOP VIEW)
16 15 14 13
GND
3
10
GND
1DIR
4
9
2A2
5
6
7
8
2A1
2B2
11
1A2
12
1A1
1
2
2DIR
1OE
VCCB
VCCA
DESCRIPTION/ORDERING INFORMATION
This 4-bit noninverting bus transceiver uses two separate configurable power-supply rails. The A port is designed
to track VCCA. VCCA accepts any supply voltage from 1.2 V to 3.6 V. The B port is designed to track VCCB. VCCB
accepts any supply voltage from 1.2 V to 3.6 V. The SN74AVCH4T245 is optimized to operate with VCCA/VCCB
set at 1.4 V to 3.6 V. It is operational with VCCA/VCCB as low as 1.2 V. This allows for universal low-voltage
bidirectional translation between any of the 1.2-V, 1.5-V, 1.8-V, 2.5-V, and 3.3-V voltage nodes.
1
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 © 2008, Texas Instruments Incorporated
SN74AVCH4T245-EP
SCES771 – DECEMBER 2008........................................................................................................................................................................................... www.ti.com
DESCRIPTION/ORDERING INFORMATION (CONTINUED)
The SN74AVCH4T245 is designed for asynchronous communication between two data buses. The logic levels of
the direction-control (DIR) input and the output-enable (OE) input activate either the B-port outputs or the A-port
outputs or place both output ports into the high-impedance mode. The device transmits data from the A bus to
the B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs are
activated. The input circuitry on both A and B ports is always active and must have a logic HIGH or LOW level
applied to prevent excess ICC and ICCZ.
The SN74AVCH4T245 is designed so that the control pins (1DIR, 2DIR, 1OE, and 2OE) are supplied by VCCA.
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.
The VCC isolation feature ensures that if either VCC input is at GND, then both ports are in the high-impedance
state. The bus-hold circuitry on the powered-up side always stays active.
Active bus-hold circuitry holds unused or undriven inputs at a valid logic state. Use of pullup or pulldown resistors
with the bus-hold circuitry is not recommended.
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.
ORDERING INFORMATION (1)
PACKAGE (2)
TA
–55°C to 125°C
(1)
(2)
QFN – RSV
ORDERABLE PART NUMBER
Tape and reel
CAVCH4T245MRSVREP
TOP-SIDE MARKING
SODM
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
website at www.ti.com.
FUNCTION TABLE (1)
(EACH 2-BIT SECTION)
CONTROL INPUTS
OE
(1)
OUTPUT CIRCUITS
B PORT
OPERATION
DIR
A PORT
L
L
Enabled
Hi-Z
B data to A bus
L
H
Hi-Z
Enabled
A data to B bus
H
X
Hi-Z
Hi-Z
Isolation
Input circuits of the data I/Os are always active.
LOGIC DIAGRAM (POSITIVE LOGIC) FOR 1/2 OF AVCH4T245
DIR
OE
A1
B1
A2
B2
2
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Absolute Maximum Ratings (1)
over operating free-air temperature range (unless otherwise noted)
VCCA
VCCB
VI
MIN
MAX
–0.5
4.6
I/O ports (A port)
–0.5
4.6
I/O ports (B port)
–0.5
4.6
Control inputs
–0.5
4.6
A port
–0.5
4.6
B port
–0.5
4.6
A port
–0.5 VCCA + 0.5
B port
–0.5 VCCB + 0.5
Supply voltage range
Input voltage range (2)
UNIT
V
V
VO
Voltage range applied to any output
in the high-impedance or power-off state (2)
VO
Voltage range applied to any output in the high or low state (2) (3)
IIK
Input clamp current
VI < 0
–50
mA
IOK
Output clamp current
VO < 0
–50
mA
IO
Continuous output current
±50
mA
Continuous current through VCCA, VCCB, or GND
θJA
Package thermal impedance
Tstg
Storage temperature range
(1)
(2)
(3)
–65
V
V
±100
mA
184
°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 voltage and output negative-voltage ratings may be exceeded if the input and output current ratings are observed.
The output positive-voltage rating may be exceeded up to 4.6 V maximum if the output current rating is observed.
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Recommended Operating Conditions (1) (2) (3) (4) (5)
VCCI
VCCO
MIN
MAX
UNIT
VCCA
Supply voltage
1.2
3.6
V
VCCB
Supply voltage
1.2
3.6
V
High-level
input voltage
VIH
Low-level
input voltage
VIL
High-level
input voltage
VIH
VIL
Low-level
input voltage
VI
Input voltage
Data inputs (4)
Data inputs
(4)
DIR
(referenced to VCCA) (5)
DIR
(referenced to VCCA) (5)
1.2 V to 1.95 V
VCCI × 0.65
1.95 V to 2.7 V
1.6
2.7 V to 3.6 V
2
1.2 V to 1.95 V
VCCI × 0.35
1.95 V to 2.7 V
0.7
2.7 V to 3.6 V
0.8
1.2 V to 1.95 V
VCCA × 0.65
1.95 V to 2.7 V
1.6
2.7 V to 3.6 V
2
Output voltage
IOH
VCCA × 0.35
1.95 V to 2.7 V
0.7
IOL
3.6
Active state
0
VCCO
3-state
0
3.6
Low-level output current
Δt/Δv
Input transition rise or fall rate
TA
Operating free-air temperature
(1)
(2)
(3)
(4)
(5)
4
V
0.8
0
High-level output current
V
V
1.2 V to 1.95 V
2.7 V to 3.6 V
VO
V
1.2 V
–3
1.4 V to 1.6 V
–6
1.65 V to 1.95 V
–8
2.3 V to 2.7 V
–9
3 V to 3.6 V
–12
1.2 V
3
1.4 V to 1.6 V
6
1.65 V to 1.95 V
8
2.3 V to 2.7 V
9
3 V to 3.6 V
12
5
–55
125
V
V
mA
mA
ns/V
°C
VCCI is the VCC associated with the input port.
VCCO is the VCC associated with the output port.
All unused data inputs of the device must be held at VCCI or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
For VCCI values not specified in the data sheet, VIH min = VCCI × 0.7 V, VIL max = VCCI × 0.3 V.
For VCCA values not specified in the data sheet, VIH min = VCCA × 0.7 V, VIL max = VCCA × 0.3 V.
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Electrical Characteristics (1) (2)
over recommended operating free-air temperature range (unless otherwise noted)
PARAMETER
TEST CONDITIONS
1.2 V to 3.6 V
1.2 V to 3.6 V
IOH = –3 mA
1.2 V
1.2 V
IOH = –6 mA
1.4 V
1.4 V
1.05
1.65 V
1.65 V
1.2
IOH = –9 mA
2.3 V
2.3 V
1.75
IOH = –12 mA
3V
3V
2.3
IOL = 100 µA
1.2 V to 3.6 V
1.2 V to 3.6 V
IOL = 3 mA
1.2 V
1.2 V
IOL = 6 mA
1.4 V
1.4 V
0.35
1.65 V
1.65 V
0.45
2.3 V
2.3 V
0.55
IOH = –8 mA
VOL
IOL = 8 mA
VI = VIH
VI = VIL
IOL = 9 mA
IOL = 12 mA
II
DIR input
VI = VCCA or GND
VI = 0.42 V
IBHL (3)
IBHH (4)
IBHLO (5)
IBHHO (6)
(1)
(2)
(3)
(4)
(5)
(6)
–55°C to 125°C
VCCB
IOH = –100 µA
VOH
TA = 25°C
VCCA
3V
3V
1.2 V to 3.6 V
1.2 V to 3.6 V
1.2 V
1.2 V
MIN
TYP
MAX
MIN MAX
VCCO – 0.2
0.95
0.15
V
0.7
±0.025
±0.25
±1
µA
25
1.4 V
1.4 V
15
VI = 0.58 V
1.65 V
1.65 V
25
VI = 0.7 V
2.3 V
2.3 V
45
VI = 0.8 V
3.3 V
3.3 V
VI = 0.78 V
1.2 V
1.2 V
µA
100
–25
VI = 0.91 V
1.4 V
1.4 V
–15
VI = 1.07 V
1.65 V
1.65 V
–25
VI = 1.6 V
2.3 V
2.3 V
–45
VI = 2 V
3.3 V
3.3 V
–100
1.2 V
1.2 V
VI = 0 to VCCI
V
0.2
VI = 0.49 V
VI = 0 to VCCI
UNIT
µA
50
1.6 V
1.6 V
125
1.95 V
1.95 V
200
2.7 V
2.7 V
300
3.6 V
3.6 V
1.2 V
1.2 V
µA
500
–50
1.6 V
1.6 V
–125
1.95 V
1.95 V
–200
2.7 V
2.7 V
–300
3.6 V
3.6 V
–500
µA
VCCO is the VCC associated with the output port.
VCCI is the VCC associated with the input port.
The bus-hold circuit can sink at least the minimum low sustaining current at VIL max. IBHL should be measured after lowering VIN to GND
and then raising it to VIL max.
The bus-hold circuit can source at least the minimum high sustaining current at VIH min. IBHH should be measured after raising VIN to
VCC and then lowering it to VIH min.
An external driver must source at least IBHLO to switch this node from low to high.
An external driver must sink at least IBHHO to switch this node from high to low.
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Electrical Characteristics (1) (2)
over recommended operating free-air temperature range (unless otherwise noted) (continued)
PARAMETER
A port
Ioff
B port
A or B port
IOZ
(3)
B port
A port
ICCA
ICCB
TEST CONDITIONS
OE = VIH
VO = VCCO or
GND,
VI = VCCI or GND
OE =
don't
care
VI = VCCI or GND,
IO = 0
VI = VCCI or GND,
ICCA + ICCB
VI = VCCI or GND,
0V
0 V to 3.6 V
±0.1
±1
±13
0 V to 3.6 V
0V
±0.1
±1
±13
3.6 V
3.6 V
±0.5
±2.5
±5
0V
3.6 V
±14
3.6 V
0V
±5
1.2 V to 3.6 V
1.2 V to 3.6 V
8
0V
3.6 V
–2
3.6 V
0V
8
1.2 V to 3.6 V
1.2 V to 3.6 V
8
0V
3.6 V
8
3.6 V
0V
–2
1.2 V to 3.6 V
1.2 V to 3.6 V
16
µA
IO = 0
IO = 0
–55°C to 125°C
VCCB
VI or VO = 0 to 3.6 V
VO = VCCO or
GND,
VI = VCCI or GND
TA = 25°C
VCCA
MIN
TYP MAX
MIN
MAX
UNIT
µA
µA
µA
µA
Ci
Control
inputs
VI = 3.3 V or GND
3.3 V
3.3 V
3.5
4.5
pF
Cio
A or B port
VO = 3.3 V or GND
3.3 V
3.3 V
6
7
pF
(1)
(2)
(3)
VCCO is the VCC associated with the output port.
VCCI is the VCC associated with the input port.
For I/O ports, the parameter IOZ includes the input leakage current.
Switching Characteristics
over recommended operating free-air temperature range, VCCA = 1.2 V (see Figure 1)
PARAMETER
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
6
FROM
(INPUT)
TO
(OUTPUT)
A
B
B
A
OE
A
OE
B
OE
A
OE
B
VCCB = 1.2 V
VCCB = 1.5 V
± 0.1 V
VCCB = 1.8 V
± 0.15 V
VCCB = 2.5 V
± 0.2 V
VCCB = 3.3 V
± 0.3 V
TYP
TYP
TYP
TYP
TYP
3.4
2.9
2.7
2.6
2.8
3.4
2.9
2.7
2.6
2.8
3.6
3.1
2.8
2.6
2.6
3.6
3.1
2.8
2.6
2.6
5.6
4.7
4.3
3.9
3.7
5.6
4.7
4.3
3.9
3.7
5
4.3
3.9
3.6
3.6
5
4.3
3.9
3.6
3.6
6.2
5.2
5.2
4.3
4.8
6.2
5.2
5.2
4.3
4.8
5.9
5.1
5
4.7
5.5
5.9
5.1
5
4.7
5.5
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UNIT
ns
ns
ns
ns
ns
ns
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Product Folder Link(s): SN74AVCH4T245-EP
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www.ti.com........................................................................................................................................................................................... SCES771 – DECEMBER 2008
Switching Characteristics
over recommended operating free-air temperature range, VCCA = 1.5 V ± 0.1 V (see Figure 1)
PARAMETER
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
FROM
(INPUT)
TO
(OUTPUT)
A
B
B
A
OE
A
OE
B
OE
A
OE
B
VCCB = 1.2 V
VCCB = 1.5 V
± 0.1 V
VCCB = 1.8 V
± 0.15 V
VCCB = 2.5 V
± 0.2 V
VCCB = 3.3 V
± 0.3 V
TYP
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
3.2
0.3
10.3
0.3
9.2
0.4
8.2
0.4
8.2
3.2
0.3
10.3
0.3
9.2
0.4
8.2
0.4
8.2
3.3
0.7
10.3
0.5
10
0.4
9.7
0.3
9.6
3.3
0.7
10.3
0.5
10
0.4
9.7
0.3
13.6
4.9
1.4
13.6
1.1
13.5
0.7
13.4
0.4
13.4
4.9
1.4
13.6
1.1
13.5
0.7
13.4
0.4
13.4
4.5
1.4
14.6
1.1
11.7
0.9
9.8
0.9
9.6
4.5
1.4
14.6
1.1
11.7
0.9
9.8
0.9
9.6
5.6
1.8
14.2
1.5
14.2
1.3
14.2
1.6
14.2
5.6
1.8
14.2
1.5
14.2
1.3
14.2
1.6
14.2
5.2
1.9
14.3
1.9
13.1
1.4
11.4
1.2
11.6
5.2
1.9
14.3
1.9
13.1
1.4
11.4
1.2
11.6
UNIT
ns
ns
ns
ns
ns
ns
Switching Characteristics
over recommended operating free-air temperature range, VCCA = 1.8 V ± 0.15 V (see Figure 1)
PARAMETER
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
FROM
(INPUT)
TO
(OUTPUT)
A
B
B
A
OE
A
OE
B
OE
A
OE
B
VCCB = 1.2 V
VCCB = 1.5 V
± 0.1 V
VCCB = 1.8 V
± 0.15 V
VCCB = 2.5 V
± 0.2 V
VCCB = 3.3 V
± 0.3 V
TYP
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
2.9
0.1
10
0.1
8.9
0.1
7.9
0.3
7.9
2.9
0.1
10
0.1
8.9
0.1
7.9
0.3
7.9
3
0.6
9.3
0.5
8.9
0.3
8.6
0.3
8.5
3
0.6
9.3
0.5
8.9
0.3
8.6
0.3
8.5
4.4
1
13.4
1
11.3
0.6
11.3
0.4
11.2
4.4
1
13.4
1
11.3
0.6
11.3
0.4
11.2
4.1
1.2
14.4
1
12.4
0.8
9.3
0.8
8.6
4.1
1.2
14.4
1
12.4
0.8
9.3
0.8
8.6
5.4
1.6
12.6
1.8
12.7
1.3
12.7
1.6
12.7
5.4
1.6
12.6
1.8
12.7
1.3
12.7
1.6
12.7
5
1.7
13.9
1.6
12.7
1.2
10.9
1
10.9
5
1.7
13.9
1.6
12.7
1.2
10.9
1
10.9
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UNIT
ns
ns
ns
ns
ns
ns
7
SN74AVCH4T245-EP
SCES771 – DECEMBER 2008........................................................................................................................................................................................... www.ti.com
Switching Characteristics
over recommended operating free-air temperature range, VCCA = 2.5 V ± 0.2 V (see Figure 1)
PARAMETER
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
FROM
(INPUT)
TO
(OUTPUT)
A
B
B
A
OE
A
OE
B
OE
A
OE
B
VCCB = 1.2 V
VCCB = 1.5 V
± 0.1 V
VCCB = 1.8 V
± 0.15 V
VCCB = 2.5 V
± 0.2 V
VCCB = 3.3 V
± 0.3 V
TYP
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
2.8
0.1
9.7
0.1
8.6
0.2
7.5
0.1
7.6
2.8
0.1
9.7
0.1
8.6
0.2
7.5
0.1
7.6
2.7
0.6
8.2
0.4
7.9
0.2
7.4
0.2
7.3
2.7
0.6
8.2
0.4
7.9
0.2
7.4
0.2
7.3
4
0.7
10.5
0.7
9.2
0.6
8.8
0.4
8.8
4
0.7
10.5
0.7
9.2
0.6
8.8
0.4
8.8
3.8
0.9
14.8
0.8
12
0.6
9.8
0.6
9
3.8
0.9
14.8
0.8
12
0.6
9.8
0.6
9
4.7
1
12.4
1
12.4
1
10.2
1
10.6
4.7
1
12.4
1
12.4
1
10.2
1
10.6
4.5
1.5
13.4
1.3
12.2
1.1
10.2
0.9
9.2
4.5
1.5
12.8
1.3
12.2
1.1
10.2
0.9
9.2
UNIT
ns
ns
ns
ns
ns
ns
Switching Characteristics
over recommended operating free-air temperature range, VCCA = 3.3 V ± 0.3 V (see Figure 1)
PARAMETER
tPLH
tPHL
tPLH
tPHL
tPZH
tPZL
tPZH
tPZL
tPHZ
tPLZ
tPHZ
tPLZ
8
FROM
(INPUT)
TO
(OUTPUT)
A
B
B
A
OE
A
OE
B
OE
A
OE
B
VCCB = 1.2 V
VCCB = 1.5 V
± 0.1 V
VCCB = 1.8 V
± 0.15 V
VCCB = 2.5 V
± 0.2 V
VCCB = 3.3 V
± 0.3 V
TYP
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
2.9
0.1
9.6
0.1
8.5
0.1
7.3
0.1
6.9
2.9
0.1
9.6
0.1
8.5
0.1
7.3
0.1
6.9
2.6
0.6
8.2
0.4
7.4
0.2
7
0.1
6.8
2.6
0.6
8.2
0.4
7.4
0.2
7
0.1
6.8
3.8
0.6
12.7
0.6
9.2
0.6
7.8
0.4
7.8
3.8
0.6
12.7
0.6
9.2
0.6
7.8
0.4
7.8
3.7
0.8
14.7
0.6
11.8
0.5
9.7
0.5
8.8
3.7
0.8
14.7
0.6
11.8
0.5
9.7
0.5
8.8
4.8
0.7
13.3
0.7
12.3
0.7
9.6
0.7
10.6
4.8
0.7
13.3
0.7
12.3
0.7
9.6
0.7
10.6
5.3
1.4
13.3
1.2
12.1
1
10.4
0.8
10.2
5.3
1.4
13.3
1.2
12.1
1
10.4
0.8
10.2
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UNIT
ns
ns
ns
ns
ns
ns
Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): SN74AVCH4T245-EP
SN74AVCH4T245-EP
www.ti.com........................................................................................................................................................................................... SCES771 – DECEMBER 2008
Operating Characteristics
TA = 25°C
VCCA =
VCCB = 1.2 V
VCCA =
VCCB = 1.5 V
VCCA =
VCCB = 1.8 V
VCCA =
VCCB = 2.5 V
VCCA =
VCCB = 3.3 V
TYP
TYP
TYP
TYP
TYP
1
1
1
1.5
2
1
1
1
1
1
12
12.5
13
14
15
Outputs
disabled
1
1
1
1
1
Outputs
enabled
12
12.5
13
14
15
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
PARAMETER
A to B
CpdA
(1)
B to A
A to B
CpdB (1)
B to A
(1)
TEST
CONDITIONS
Outputs
enabled
Outputs
disabled
Outputs
enabled
Outputs
disabled
Outputs
enabled
CL = 0,
f = 10 MHz,
tr = tf = 1 ns
UNIT
pF
CL = 0,
f = 10 MHz,
tr = tf = 1 ns
pF
Outputs
disabled
Power dissipation capacitance per transceiver
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Product Folder Link(s): SN74AVCH4T245-EP
9
SN74AVCH4T245-EP
SCES771 – DECEMBER 2008........................................................................................................................................................................................... www.ti.com
PARAMETER MEASUREMENT INFORMATION
2 × VCCO
S1
RL
From Output
Under Test
Open
GND
CL
(see Note A)
TEST
S1
tpd
tPLZ/tPZL
tPHZ/tPZH
Open
2 × VCCO
GND
RL
tw
LOAD CIRCUIT
VCCI
VCCI/2
Input
VCCO
CL
RL
VTP
1.2 V
1.5 V ± 0.1 V
1.8 V ± 0.15 V
2.5 V ± 0.2 V
3.3 V ± 0.3 V
15 pF
15 pF
15 pF
15 pF
15 pF
2 kΩ
2 kΩ
2 kΩ
2 kΩ
2 kΩ
0.1 V
0.1 V
0.15 V
0.15 V
0.3 V
VCCI/2
0V
VOLTAGE WAVEFORMS
PULSE DURATION
VCCA
Output
Control
(low-level
enabling)
VCCA/2
VCCA/2
0V
tPZL
VCCI
Input
VCCI/2
VCCI/2
0V
tPLH
Output
tPHL
VOH
VCCO/2
VOL
VCCO/2
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
tPLZ
VCCO
Output
Waveform 1
S1 at 2 × VCCO
(see Note B)
VCCO/2
VOL + VTP
VOL
tPZH
tPHZ
Output
Waveform 2
S1 at GND
(see Note B)
VCCO/2
VOH − VTP
VOH
0V
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
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: PRRv10 MHz, ZO = 50 Ω, dv/dt ≥ 1 V/ns,
dv/dt ≥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. VCCI is the VCC associated with the input port.
I. VCCO is the VCC associated with the output port.
Figure 1. Load Circuit and Voltage Waveforms
10
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Copyright © 2008, Texas Instruments Incorporated
Product Folder Link(s): SN74AVCH4T245-EP
PACKAGE OPTION ADDENDUM
www.ti.com
18-Dec-2008
PACKAGING INFORMATION
Orderable Device
Status (1)
Package
Type
Package
Drawing
Pins Package Eco Plan (2)
Qty
CAVCH4T245MRSVREP
ACTIVE
QFN
RSV
16
3000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
V62/09618-01XE
ACTIVE
QFN
RSV
16
3000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
Lead/Ball Finish
MSL Peak Temp (3)
(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)
Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
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provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
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incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
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In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
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• Catalog: SN74AVCH4T245
NOTE: Qualified Version Definitions:
• Catalog - TI's standard catalog product
Addendum-Page 1
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