Renesas HD74LVC4245ATEL Octal bus transceiver and 3.3 v to 5 v shifters with 3-state output Datasheet

HD74LVC4245A
Octal Bus Transceiver and 3.3 V to 5 V shifters
with 3-state Outputs
REJ03D0378–0100
(Previous ADE-205-683 (Z))
Rev.1.00
Aug. 20, 2004
Description
The HD74LVC4245A has eight bus transceivers with three state outputs in a 24 pin package. When (DIR) is high, data
flows from the A inputs to the B outputs, and when (DIR) is low, data flows from the B inputs to the A outputs. A and
B bus are separated by making enable input (OE) high level. And this product has two terminals (VCCA, VCCB), VCCA
(5V) is connected with control input and A bus side, VCCB (3.3V) connected with B bus side. VCCA and VCCB are
isolated. This allows for translation from a 3.3 V to a 5 V environment, and vice versa. Low voltage and high-speed
operation is suitable at the battery drive product (note type personal computer) and low power consumption extends the
life of a battery for long time operation.
Features
• This product function as level shift transceiver that change VCCA input level to VCCB output level, VCCB input level to
VCCA output level by providing different supply voltage to VCCA and VCCB.
• This product is able to the power management: Turn on and off the supply on VCCB side with providing the supply
of VCCA. (Enable input (OE): High level )
• VCCA = 4.5 V to 5.5 V, VCCB = 2.7 V to 3.6 V
• All control input VI (max) = 5.5 V (@VCCA = 0 V to 5.5 V)
• All A bus side input outputs VI/O (max) = 5.5 V
(@VCCA = 0 V or output off state)
• All B bus side input outputs VI/O (max) = 3.6 V
(@VCCB = 0 V or output off state)
• High output current
A bus side : ±24 mA (@VCCA = 4.5 V to 5.5 V)
B bus side : ±12 mA (@VCCB = 2.7 V)
±24 mA (@VCCB = 3.0 V to 3.6 V)
• Ordering Information
Part Name
Package Type
Package Code
Package
Abbreviation
Taping Abbreviation
(Quantity)
HD74LVC4245ATEL
TSSOP–24 pin
TTP–24DBV
T
EL (1,000 pcs/reel)
Rev.1.00 Aug. 20, 2004 page 1 of 10
HD74LVC4245A
Function Table
Inputs
OE
DIR
Operation
L
L
H
L
H
X
B data to A bus
A data to B bus
Z
H: High level
L: Low level
X: Immaterial
Z: High impedance
Pin Arrangement
VCCA 1
24 VCCB
DIR 2
23 VCCB
A1 3
22 OE
A2 4
21 B1
A3 5
A4 6
20 B2
A5 7
18 B4
A6 8
17 B5
A7 9
16 B6
A8 10
15 B7
GND 11
14 B8
GND 12
13 GND
19 B3
(Top view)
Rev.1.00 Aug. 20, 2004 page 2 of 10
HD74LVC4245A
Absolute Maximum Ratings
(1) For VCCA
Item
Symbol
Ratings
Unit
Supply voltage
Input voltage*1
Input / output voltage
VCCA
VI
VI/O
V
V
V
Input diode current
Output diode current
IIK
IOK
Output current
VCCA, GND current
IO
ICCA or IGND
PT
–0.5 to 6.0
–0.5 to 6.0
–0.5 to VCCA+0.5
–0.5 to 6.0
–50
–50
50
±50
100
862
mA
mA
mW
Tstg
–65 to 150
°C
Maximum power dissipation
*2
at Ta = 25°C (in still air)
Storage temperature
Notes:
mA
mA
Conditions
DIR, OE
A port output “H” or “L”
A port output “Z” or VCCA : OFF
VI < 0
VO < 0
VO > VCCA+0.5
TSSOP
The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two
of which may be realized at the same time.
1. The input and output voltage ratings may be exceeded even if the input and output clamp-current ratings are
observed.
2. The maximum package power dissipation was calculated using a junction temperature of 150°C.
(2) For VCCB
Item
Symbol
Ratings
Unit
Supply voltage
Input / output voltage*1
VCCB
VI/O
V
V
Input diode current
Output diode current
IIK
IOK
Output current
VCCB,GND current
IO
ICCB or IGND
PT
–0.5 to 4.6
–0.5 to VCCB+0.5
–0.5 to 4.6
–50
–50
50
±50
100
862
mA
mA
mW
Tstg
–65 to 150
°C
Maximum power dissipation
*2
at Ta = 25°C (in still air)
Storage temperature
Notes:
mA
mA
Conditions
B port output “H” or “L”
B port output “Z” or VCCB : OFF
VI < 0
VO < 0
VO > VCCB+0.5
TSSOP
The absolute maximum ratings are values, which must not individually be exceeded, and furthermore, no two
of which may be realized at the same time.
1. The input and output voltage ratings may be exceeded even if the input and output clamp-current ratings are
observed.
2. The maximum package power dissipation was calculated using a junction temperature of 150°C.
Rev.1.00 Aug. 20, 2004 page 3 of 10
HD74LVC4245A
Recommended Operating Conditions
(1) For VCCA
Item
Symbol
Ratings
Unit
Supply voltage
Input / output voltage
VCCA
VI
VI/O
V
V
Output current
IOH
IOL
∆t / ∆v
Ta
4.5 to 5.5
0 to 5.5
0 to VCCA
0 to 5.5
–24
24
10
–40 to 85
Input transition rise or fall time
Operating temperature
Conditions
DIR, OE
A port output “H” or “L”
A port output “Z” or VCCA : OFF
mA
ns / V
°C
Note: Unused or floating inputs must be held high or low.
(2) For VCCB
Item
Symbol
Ratings
Unit
Supply voltage
Input / output voltage
VCCB
VI/O
V
V
Output current
IOH
2.7 to 3.6
0 to VCCB
0 to 3.6
–12
–24
12
24
10
–40 to 85
IOL
Input transition rise or fall time
Operating temperature
∆t / ∆v
Ta
Conditions
B port output “H” or “L”
B port output “Z” or VCCB : OFF
VCCB = 2.7 V
VCCB = 3.0 to 3.6 V
VCCB = 2.7 V
VCCB = 3.0 to 3.6 V
mA
ns / V
°C
Note: Unused or floating inputs must be held high or low.
Block Diagram
DIR
2
22
A1
21
To seven other channels
Rev.1.00 Aug. 20, 2004 page 4 of 10
OE
3
B1
HD74LVC4245A
Electrical Characteristics
Item
Input voltage
Output voltage
Min
2

VCCA–0.2
3.7
4.7
VCCB–0.2
2.2
2.4
2










Max

0.8







0.2
0.55
0.55
0.2
0.4
0.55
±1
±5
±5
20
Unit
V
IIN
IOZA
IOZB
IOFF
VCCB (V)
2.7 to 3.6
2.7 to 3.6
2.7 to 3.6
2.7 to 3.6
2.7 to 3.6
2.7 to 3.6
2.7
3.0
3.0
2.7 to 3.6
2.7 to 3.6
2.7 to 3.6
2.7 to 3.6
2.7
3.0
2.7 to 3.6
2.7 to 3.6
3.6
0
ICCA
5.5
2.7 to 3.6

80
µA
B to A,
control input =VCCA or GND
Bn = VCCB or GND,
IO (A port) = 0
ICCB
4.5 to 5.5
3.6

50
µA
A to B,
control input =VCCA or GND
An = VCCA or GND,
IO (B port) = 0
∆ICCA
5.5
2.7 to 3.6

1.5
mA
∆ICCB
4.5 to 5.5
2.7 to 3.6

0.5
mA
A port or Control input,
One input at 3.4 V,
Other input at VCCA at GND
B port,
One input at VCCB–0.6V,
Other input at VCCB at GND
VOHB
VOLA
VOLB
Input current
Off state
output current
Output leak current
Quiescent
supply current
Increase in ICC
per input *1
Notes:
(Ta = –40 to 85°C)
Test Conditions
VCCA (V)
4.5 to 5.5
4.5 to 5.5
4.5 to 5.5
4.5
5.5
4.5 to 5.5
4.5 to 5.5
4.5 to 5.5
4.5 to 5.5
4.5 to 5.5
4.5
5.5
4.5 to 5.5
4.5 to 5.5
4.5 to 5.5
5.5
5.5
4.5 to 5.5
0
Symbol
VIH
VIL
VOHA
V
IOH = –100 µA
IOH = –24 mA
V
IOH = –100 µA
IOH = –12 mA
V
V
µA
µA
µA
IOH = –24 mA
IOL = 100 µA
IOL = 24 mA
IOL = 100 µA
IOL = 12 mA
IOL = 24 mA
Control input
A port, VO = VCCA or GND
B port, VO = VCCB or GND
A port, VI/O = 5.5 V
B port, VI/O = 3.6 V
For condition shown as Min or Max, use the appropriate values under recommended operating conditions.
1. This is the increase in supply current for each input that is at the specified TTL voltage level rather than VCC
or GND.
Rev.1.00 Aug. 20, 2004 page 5 of 10
HD74LVC4245A
Capacitance
(Ta = 25°C)
Item
Symbol
VCCA (V)
VCCB (V)
Min
Typ
Max
Unit
Test Conditions
Control Input capacitance
Input/output capacitance
CIN
CI/O
5
5
3.3
3.3


5
11


pF
pF
VI = VCCA or GND
A port, VI = VCCA or GND,
B port, VI = VCCB or GND
Switching Characteristics
(Ta = –40 to 85°C), VCCA = 5.0±0.5 V, VCCB = 2.7 V to 3.6 V
Item
Symbol
Min
Typ
Max
Unit
Test conditions
From(Input) To(Output)
Propagation delay
time
tPLH
tPHL
tPLH
tPHL
1
1
1
1
1
1
1
1
1
1
1
1












6.7
6.3
5
6.1
8.1
9
9.8
8.8
5.8
7
7.8
7.7
ns
CL = 50 pF
RL = 500 Ω
A
B
B
A
OE
A
OE
B
OE
A
OE
B
Output enable time
Output disable time
tZH
tZL
tZH
tZL
tHZ
tLZ
tHZ
tLZ
ns
ns
CL = 50 pF
RL = 500 Ω
CL = 50 pF
RL = 500 Ω
Operating Characteristics
Item
Symbol
VCCA (V)
VCCB (V)
Min
Typ
Max
Unit
Test Conditions
Power dissipation capacitance
CPD
5.0
3.0

39.5

pF
f = 10 MHz, CL = 0
Power-up considerations
Level-translation devices offer an opportunity for successful mixed-voltage signal design.
A proper power-up sequence always should be followed to avoid excessive supply current, bus contention, oscillations,
or other anomalies caused by improperly biased device pins.
Take these precautions to guard against such power-up problems.
1.
Connect ground before any supply voltage is applied.
2.
Next, power up the control side of the device.
(Power up of VCCA is first. Next power up is VCCB.)
3.
Tie OE to VCCA with a pullup resistor so that it ramps with VCCA.
4.
Depending on the direction of the data path, DIR can be high or low.
If DIR high is needed (A data to B bus), ramp it with VCCA. Overwise, keep DIR low.
Rev.1.00 Aug. 20, 2004 page 6 of 10
HD74LVC4245A
Test Circuit
See under table
S1
500 Ω
OPEN
GND
*1
CL = 50 pF
500 Ω
Load circuit for outputs
S1
Symbol
VCCA = 5±0.5 V
VCCB = 2.7 to 3.6 V
A/OE to B
B/OE to A
t PLH / tPHL
OPEN
OPEN
t ZH / t HZ
GND
GND
t ZL / t LZ
6V
2 × VCCA
Note: 1. CL includes probe and jig capacitance.
Rev.1.00 Aug. 20, 2004 page 7 of 10
HD74LVC4245A
Waveforms – 1
tf
tr
Vref1
Input
VIH
90 %
90 %
Vref1
10 %
10 %
GND
t PHL
t PLH
V OH
Output
Vref2
Vref2
V OL
Symbol
Rev.1.00 Aug. 20, 2004 page 8 of 10
VCCA = 5±0.5 V
VCCB = 2.7 to 3.6 V
A to B
B to A
VIH
3.0 V
2.7 V
Vref1
1.5 V
1.5 V
Vref2
1.5 V
1/2 VCCA
HD74LVC4245A
Waveforms – 2
tr
tf
Output
Control
VIH
90 %
90 %
Vref1
Vref1
10 %
10 %
t ZL
GND
t LZ
VOH
Waveform - A
Vref2
V OL + 0.3 V
t ZH
t HZ
V OH - 0.3 V
Waveform - B
V OL
V OH
Vref2
GND
Symbol
VCCA = 5±0.5 V
VCCB = 2.7 to 3.6 V
OE to B
OE to A
VIH
3.0 V
3.0 V
Vref1
1.5 V
1.5 V
Vref2
1.5 V
1/2 VCCA
Notes: 1. All input pulses are supplied by generators having the following characteristics :
PRR ≤ 10 MHz, ZO = 50 Ω, tr ≤ 2.5 ns, tf ≤ 2.5 ns.
2. Waveform - A is for an output with internal conditions such that the output is low except
when disabled by the output control.
3. Waveform - B is for an output with internal conditions such that the output is high except
when disabled by the output control.
4. The output are measured one at a time with one transition per measurement.
Rev.1.00 Aug. 20, 2004 page 9 of 10
HD74LVC4245A
Package Dimensions
As of July, 2001
Unit: mm
7.80
8.10 Max
13
1
12
4.40
24
0.65
1.0
0.13 M
6.40 ± 0.20
*Pd plating
Rev.1.00 Aug. 20, 2004 page 10 of 10
0.10
*0.15 ± 0.05
1.10 Max
0.65 Max
0˚ – 8˚
0.07 +0.03
–0.04
*0.20 ± 0.05
0.50 ± 0.10
Package Code
JEDEC
JEITA
Mass (reference value)
TTP–24DBV
—
—
0.08 g
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