TI SN74AVCH4T245DGVR

SN74AVCH4T245
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES577B – JUNE 2004 – REVISED FEBRUARY 2006
FEATURES
D, DGV, OR PW PACKAGE
(TOP VIEW)
VCCA
1DIR
2DIR
1A1
1A2
2A1
2A2
GND
1
16
2
15
3
14
4
13
5
12
6
11
7
10
8
9
VCCB
1OE
2OE
1B1
1B2
2B1
2B2
GND
RGY PACKAGE
(TOP VIEW)
1DIR
2DIR
1A1
1A2
2A1
2A2
VCCB
•
•
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)
1
16
15 1OE
14 2OE
2
3
13 1B1
12 1B2
11 2B1
4
5
6
10 2B2
7
8
9
GND
•
•
•
VCCA
•
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
GND
•
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.
The SN74AVCH4T245 is designed for asynchronous communication between data buses. The device transmits
data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the
direction-control (DIR) input. The output-enable (OE) input can be used to disable the outputs so the buses are
effectively isolated.
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.
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 © 2004–2006, Texas Instruments Incorporated
SN74AVCH4T245
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES577B – JUNE 2004 – REVISED FEBRUARY 2006
ORDERING INFORMATION
PACKAGE (1)
TA
QFN – RGY
SOIC – D
–40°C to 85°C
TSSOP – PW
TVSOP – DGV
(1)
ORDERABLE PART NUMBER
Tape and reel
SN74AVCH4T245RGYR
Tube
SN74AVCH4T245D
Tape and reel
SN74AVCH4T245DR
Tube
SN74AVCH4T245PW
Tape and reel
SN74AVCH4T245PWR
Tape and reel
SN74AVCH4T245DGVR
TOP-SIDE MARKING
WS245
AVCH4T245
WS245
WS245
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
FUNCTION TABLE
(EACH 4-BIT SECTION)
INPUTS
OE
DIR
OPERATION
L
L
B data to A bus
L
H
A data to B bus
H
X
All output Hi-Z
LOGIC DIAGRAM (POSITIVE LOGIC)
1DIR
2
2DIR
3
15
14
1OE
1A1
4
2A1
13
1A2
6
11
1B1
5
2A2
12
2
2OE
2B1
7
1B2
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10
2B2
SN74AVCH4T245
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES577B – JUNE 2004 – REVISED FEBRUARY 2006
Absolute Maximum Ratings
(1)
over operating free-air temperature range (unless otherwise noted)
VCCA
VCCB
Supply voltage range
VI
Input voltage range (2)
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
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
±100
mA
Continuous current through VCCA, VCCB, or GND
D package (4)
θJA
Package thermal impedance
120
package (4)
108
RGY package (5)
Tstg
(1)
(2)
(3)
(4)
(5)
Storage temperature range
V
73
DGV package (4)
PW
V
°C/W
39
–65
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.
The package thermal impedance is calculated in accordance with JESD 51-7.
The package thermal impedance is calculated in accordance with JESD 51-5.
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SN74AVCH4T245
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES577B – JUNE 2004 – REVISED FEBRUARY 2006
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
VO
Output voltage
IOH
Data inputs (4)
Data
inputs (4)
DIR
(referenced to VCCA) (5)
DIR
(referenced to VCCA) (5)
2
V
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
1.2 V to 1.95 V
VCCA × 0.35
1.95 V to 2.7 V
0.7
2.7 V to 3.6 V
3-state
0
3.6
Operating free-air temperature
V
0.8
3.6
Low-level output current
V
V
VCCO
TA
4
1.6
2.7 V to 3.6 V
0
Input transition rise or fall rate
(4)
(5)
1.95 V to 2.7 V
Active state
∆t/∆v
(1)
(2)
(3)
VCCI × 0.65
0
High-level output current
IOL
1.2 V to 1.95 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
–40
V
V
mA
mA
5
ns/V
85
°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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SN74AVCH4T245
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES577B – JUNE 2004 – REVISED FEBRUARY 2006
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)
–40°C to 85°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 V
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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SN74AVCH4T245
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES577B – JUNE 2004 – REVISED FEBRUARY 2006
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
±5
0 V to 3.6 V
0V
±0.1
±1
±5
3.6 V
3.6 V
±0.5
±2.5
±5
0V
3.6 V
±5
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
–40°C to 85°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
SN74AVCH4T245
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES577B – JUNE 2004 – REVISED FEBRUARY 2006
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
6.3
0.3
5.2
0.4
4.2
0.4
4.2
3.2
0.3
6.3
0.3
5.2
0.4
4.2
0.4
4.2
3.3
0.7
6.3
0.5
6
0.4
5.7
0.3
5.6
3.3
0.7
6.3
0.5
6
0.4
5.7
0.3
5.6
4.9
1.4
9.6
1.1
9.5
0.7
9.4
0.4
9.4
4.9
1.4
9.6
1.1
9.5
0.7
9.4
0.4
9.4
4.5
1.4
9.6
1.1
7.7
0.9
5.8
0.9
5.6
4.5
1.4
9.6
1.1
7.7
0.9
5.8
0.9
5.6
5.6
1.8
10.2
1.5
10.2
1.3
10.2
1.6
10.2
5.6
1.8
10.2
1.5
10.2
1.3
10.2
1.6
10.2
5.2
1.9
10.3
1.9
9.1
1.4
7.4
1.2
7.6
5.2
1.9
10.3
1.9
9.1
1.4
7.4
1.2
7.6
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
6
0.1
4.9
0.1
3.9
0.3
3.9
2.9
0.1
6
0.1
4.9
0.1
3.9
0.3
3.9
3
0.6
5.3
0.5
4.9
0.3
4.6
0.3
4.5
3
0.6
5.3
0.5
4.9
0.3
4.6
0.3
4.5
4.4
1
7.4
1
7.3
0.6
7.3
0.4
7.2
4.4
1
7.4
1
7.3
0.6
7.3
0.4
7.2
4.1
1.2
9.2
1
7.4
0.8
5.3
0.8
4.6
4.1
1.2
9.2
1
7.4
0.8
5.3
0.8
4.6
5.4
1.6
8.6
1.8
8.7
1.3
8.7
1.6
8.7
5.4
1.6
8.6
1.8
8.7
1.3
8.7
1.6
8.7
5
1.7
9.9
1.6
8.7
1.2
6.9
1
6.9
5
1.7
9.9
1.6
8.7
1.2
6.9
1
6.9
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UNIT
ns
ns
ns
ns
ns
ns
7
SN74AVCH4T245
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES577B – JUNE 2004 – REVISED FEBRUARY 2006
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
5.7
0.1
4.6
0.2
3.5
0.1
3.6
2.8
0.1
5.7
0.1
4.6
0.2
3.5
0.1
3.6
2.7
0.6
4.2
0.4
3.9
0.2
3.4
0.2
3.3
2.7
0.6
4.2
0.4
3.9
0.2
3.4
0.2
3.3
4
0.7
6.5
0.7
5.2
0.6
4.8
0.4
4.8
4
0.7
6.5
0.7
5.2
0.6
4.8
0.4
4.8
3.8
0.9
8.8
0.8
7
0.6
4.8
0.6
4
3.8
0.9
8.8
0.8
7
0.6
4.8
0.6
4
4.7
1
8.4
1
8.4
1
6.2
1
6.6
4.7
1
8.4
1
8.4
1
6.2
1
6.6
4.5
1.5
9.4
1.3
8.2
1.1
6.2
0.9
5.2
4.5
1.5
8.8
1.3
8.2
1.1
6.2
0.9
5.2
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
5.6
0.1
4.5
0.1
3.3
0.1
2.9
2.9
0.1
5.6
0.1
4.5
0.1
3.3
0.1
2.9
2.6
0.6
4.2
0.4
3.4
0.2
3
0.1
2.8
2.6
0.6
4.2
0.4
3.4
0.2
3
0.1
2.8
3.8
0.6
8.7
0.6
5.2
0.6
3.8
0.4
3.8
3.8
0.6
8.7
0.6
5.2
0.6
3.8
0.4
3.8
3.7
0.8
8.7
0.6
6.8
0.5
4.7
0.5
3.8
3.7
0.8
8.7
0.6
6.8
0.5
4.7
0.5
3.8
4.8
0.7
9.3
0.7
8.3
0.7
5.6
0.7
6.6
4.8
0.7
9.3
0.7
8.3
0.7
5.6
0.7
6.6
5.3
1.4
9.3
1.2
8.1
1
6.4
0.8
6.2
5.3
1.4
9.3
1.2
8.1
1
6.4
0.8
6.2
Submit Documentation Feedback
UNIT
ns
ns
ns
ns
ns
ns
SN74AVCH4T245
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES577B – JUNE 2004 – REVISED FEBRUARY 2006
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
CL = 0,
f = 10 MHz,
tr = tf = 1 ns
Outputs
disabled
UNIT
pF
pF
Power dissipation capacitance per transceiver
Submit Documentation Feedback
9
SN74AVCH4T245
4-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES577B – JUNE 2004 – REVISED FEBRUARY 2006
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
tPLZ
VCCO
Output
Waveform 1
S1 at 2 × VCCO
(see Note B)
VCCO/2
VOL + VTP
VOL
tPZH
Output
Waveform 2
S1 at GND
(see Note B)
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
tPHZ
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: PRR10 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
Submit Documentation Feedback
PACKAGE OPTION ADDENDUM
www.ti.com
6-Dec-2006
PACKAGING INFORMATION
Orderable Device
Status (1)
Package
Type
Package
Drawing
Pins Package Eco Plan (2)
Qty
74AVCH4T245DGVRE4
ACTIVE
TVSOP
DGV
16
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
74AVCH4T245PWRE4
ACTIVE
TSSOP
PW
16
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
74AVCH4T245PWTE4
ACTIVE
TSSOP
PW
16
250
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
74AVCH4T245RGYRG4
ACTIVE
QFN
RGY
16
1000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-2-260C-1YEAR
SN74AVCH4T245D
ACTIVE
SOIC
D
16
40
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AVCH4T245DE4
ACTIVE
SOIC
D
16
40
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AVCH4T245DGVR
ACTIVE
TVSOP
DGV
16
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AVCH4T245DR
ACTIVE
SOIC
D
16
2500 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AVCH4T245DRE4
ACTIVE
SOIC
D
16
2500 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AVCH4T245DT
ACTIVE
SOIC
D
16
250
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AVCH4T245DTE4
ACTIVE
SOIC
D
16
250
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AVCH4T245PW
ACTIVE
TSSOP
PW
16
90
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AVCH4T245PWE4
ACTIVE
TSSOP
PW
16
90
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AVCH4T245PWR
ACTIVE
TSSOP
PW
16
2000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AVCH4T245PWT
ACTIVE
TSSOP
PW
16
250
Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-1-260C-UNLIM
SN74AVCH4T245RGYR
ACTIVE
QFN
RGY
16
1000 Green (RoHS &
no Sb/Br)
CU NIPDAU
Level-2-260C-1YEAR
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)
Addendum-Page 1
PACKAGE OPTION ADDENDUM
www.ti.com
6-Dec-2006
(3)
MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
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
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
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
to Customer on an annual basis.
Addendum-Page 2
MECHANICAL DATA
MPDS006C – FEBRUARY 1996 – REVISED AUGUST 2000
DGV (R-PDSO-G**)
PLASTIC SMALL-OUTLINE
24 PINS SHOWN
0,40
0,23
0,13
24
13
0,07 M
0,16 NOM
4,50
4,30
6,60
6,20
Gage Plane
0,25
0°–8°
1
0,75
0,50
12
A
Seating Plane
0,15
0,05
1,20 MAX
PINS **
0,08
14
16
20
24
38
48
56
A MAX
3,70
3,70
5,10
5,10
7,90
9,80
11,40
A MIN
3,50
3,50
4,90
4,90
7,70
9,60
11,20
DIM
4073251/E 08/00
NOTES: A.
B.
C.
D.
All linear dimensions are in millimeters.
This drawing is subject to change without notice.
Body dimensions do not include mold flash or protrusion, not to exceed 0,15 per side.
Falls within JEDEC: 24/48 Pins – MO-153
14/16/20/56 Pins – MO-194
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
MECHANICAL DATA
MTSS001C – JANUARY 1995 – REVISED FEBRUARY 1999
PW (R-PDSO-G**)
PLASTIC SMALL-OUTLINE PACKAGE
14 PINS SHOWN
0,30
0,19
0,65
14
0,10 M
8
0,15 NOM
4,50
4,30
6,60
6,20
Gage Plane
0,25
1
7
0°– 8°
A
0,75
0,50
Seating Plane
0,15
0,05
1,20 MAX
PINS **
0,10
8
14
16
20
24
28
A MAX
3,10
5,10
5,10
6,60
7,90
9,80
A MIN
2,90
4,90
4,90
6,40
7,70
9,60
DIM
4040064/F 01/97
NOTES: A.
B.
C.
D.
All linear dimensions are in millimeters.
This drawing is subject to change without notice.
Body dimensions do not include mold flash or protrusion not to exceed 0,15.
Falls within JEDEC MO-153
POST OFFICE BOX 655303
• DALLAS, TEXAS 75265
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