ETC HD74LVCC3245ATEL

HD74LVCC3245A
Octal Bus Transceiver with adjustable output voltage
and 3-state Outputs
ADE-205-684 (Z)
Rev.0
Apr. 2002
Description
The HD74LVCC3245A 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. This 8-bit noninverting bus transceiver contains two separate power-supply rails.
And this product has two terminals (VCCA, VCCB), VCCA is connected with control input and A bus side, VCCB is
connected with B bus side. VCCA and VCCB are isolated.
The B port is designed to track VCCB, which accepts voltage from 3 V to 5.5 V, and the A port is designed to
track VCCA, which operates at 2.3 V to 3.6 V. This allows for translation from a 3.3 V to a 5 V system
environment and vice versa, or from a 2.5 V to a 3.3 V system 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.
HD74LVCC3245A
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 = 2.3 V to 3.6 V, VCCB = 3.0 V to 5.5 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) = 5.5 V
(@VCCB = 0 V or output off state)
• High output current
A bus side: ±8 mA (@VCCA = 2.3 V)
±12 mA (@VCCA = 2.7 V)
±24 mA (@VCCA = 3.0 V)
B bus side: ±24 mA (@VCCB = 3.0 V)
• Package type
Product code example: HD74LVCC3245ATEL
Package type
Package code
Package suffix
Taping code
TSSOP-24pin
TTP-24DBV
T
EL (1,000pcs / Reel)
Rev.0, Apr. 2002, page 2 of 15
HD74LVCC3245A
Function Table
Inputs
OE
DIR
Operation
L
L
B data to A bus
L
H
A data to B bus
H
X
Z
H:
L:
X:
Z:
High level
Low level
Immaterial
High impedance
Pin Arrangement
24 VCCB
VCCA 1
DIR 2
23 NC
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.0, Apr. 2002, page 3 of 15
HD74LVCC3245A
Absolute Maximum Ratings
Item
Supply voltage
Input voltage
*1
Input / output voltage
Symbol
Ratings
Unit
Conditions
VCCA, VCCB
–0.5 to 6.0
V
VI
–0.5 to 6.0
V
DIR, OE
VI/O
–0.5 to VCCA+0.5
V
A port output “H” or “L”
–0.5 to 6.0
A port output “Z” or VCCA : OFF
–0.5 to VCCB+0.5
B port output “H” or “L”
–0.5 to 6.0
B port output “Z” or VCCB : OFF
Input diode current
IIK
–50
mA
VI < 0
Output diode current
IOK
–50
mA
VO < 0
50
VO > VCC+0.5
Output current
IO
±50
mA
VCCA, VCCB, GND current
ICCA, ICCB, IGND
100
mA
Maximum power
dissipation
*2
at Ta = 25°C (in still air)
PT
862
mW
Storage temperature
Tstg
–65 to 150
°C
Notes:
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.0, Apr. 2002, page 4 of 15
HD74LVCC3245A
Recommended Operating Conditions
Item
Symbol
Ratings
Unit
Supply voltage
VCCA
2.3 to 3.6
V
VCCB
3.0 to 5.5
VI
0 to 5.5
VI/O
0 to VCCA
A port output “H” or “L”
0 to 5.5
A port output “Z” or VCCA : OFF
0 to VCCB
B port output “H” or “L”
Input / output voltage
Conditions
DIR, OE
V
0 to 5.5
Output current
IOHA
–8
B port output “Z” or VCCB : OFF
VCCA = 2.3 V
mA
–12
VCCA = 2.7 V
–24
VCCA = 3.3 V
IOHB
–24
VCCB = 3.0 V
IOLA
8
VCCA = 2.3 V
12
VCCA = 2.7 V
24
VCCA = 3.3 V
IOLB
24
VCCB = 3.0 V
Input transition rise or fall ∆t / ∆v
time
10
ns / V
Operating temperature
–40 to 85
°C
Ta
Note: Unused or floating inputs must be held high or low.
Block Diagram
DIR
2
22
A1
OE
3
21
B1
To seven other channels
Rev.0, Apr. 2002, page 5 of 15
HD74LVCC3245A
Electrical Characteristics
(Ta = –40 to 85°C)
Item
Symbol VCCA (V)
VCCB (V)
Min
Max
Unit Test Conditions
Input voltage
VIHA
3.0
1.7

V
VIHB
2.3
2.7 to 3.6 3.0 to 5.5 2

2.3 to 3.6 2.7 to 3.6 2

A port
B port
2.3 to 3.6 4.5 to 5.5 VCCB×0.7 
VIH
2.3
3.0
1.7
2.7 to 3.6 3.0 to 5.5 2
VILA
VILB
VIL
Output voltage
VOHA
VOHB
VOLA
VOLB
Rev.0, Apr. 2002, page 6 of 15


0.7
2.7 to 3.6 3.0 to 5.5 
0.8
2.3 to 3.6 2.7 to 3.6 
0.8
2.3 to 3.6 4.5 to 5.5 
VCCB×0.3
2.3
3.0
Control input

A port
B port

0.7
2.7 to 3.6 3.0 to 5.5 
0.8
3.0
3.0
2.9

2.3
3.0
2.0

IOH = –8 mA
2.7
3.0
2.2

IOH = –12 mA
3.0
3.0
2.4

3.0
3.0
2.2

2.7
4.5
2.0

3.0
3.0
2.9

IOH = –100 µA
2.3
3.0
2.4

IOH = –12 mA
2.7
3.0
2.4

3.0
3.0
2.2

2.7
4.5
3.2

3.0
3.0

0.1
IOL = 100 µA
2.3
3.0

0.6
IOL = 8 mA
2.7
3.0

0.5
IOL = 12 mA
3.0
3.0

0.5
IOL = 24 mA
2.7
4.5

0.5
3.0
3.0

0.1
IOL = 100 µA
2.3
3.0

0.4
IOL = 12 mA
3.0
3.0

0.5
IOL = 24 mA
3.0
4.5

0.5
2.3
3.0
Control input
V
IOH = –100 µA
IOH = –24 mA
IOH = –24 mA
HD74LVCC3245A
Electrical Characteristics (cont)
(Ta = –40 to 85°C)
Item
Symbol VCCA (V)
VCCB (V)
Min
Max
Unit Test Conditions
Input current
IIN
3.6

±1
µA
Control input
VI = VCCA or GND

±5
µA
VI(CONT) = VIH or VIL
VO = VCCA, VCCB or GND
3.6
5.5
Off state
output current
IOZ
Output leak current
IOFF
0
0

20
µA
A port, VI/O = 5.5 V
B port, VI/O = 3.6 V
Quiescent
supply current
ICCA
3.6
OPEN

50
µA
An = VCCA or GND,
Control input = VCCA
3.6
3.6

50
5.5

50
3.6
3.6

50
5.5

80
5.5
ICCB
Increase in ICC
*1
per input
3.6
3.6
∆ICCA
3.6
3.6

0.5
∆ICCB
3.6
3.6

0.5
B to A,
Control input =VCCA or GND
Bn = VCCB or GND,
IO(A port) = 0
A to B,
Control input =VCCA or GND
An = VCCA or GND,
IO(B port) = 0
mA
A port or Control input
One input at VCCA–0.6V,
Other input at VCCA at GND
B port ,
One input at VCCB–0.6 V
Other input at VCCB or GND
Control input at GND
Notes: 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.0, Apr. 2002, page 7 of 15
HD74LVCC3245A
Capacitance
(Ta = 25°C)
Item
Symbol VCCA (V)
VCCB (V)
Min
Typ
Max
Unit Test Conditions
Control Input
capacitance
CIN
5
3.3

5

pF
VI = VCCA or GND
Input / output
capacitance
CI/O
5
3.3

11

pF
A port, VI = VCCA or GND,
B port, VI = VCCB or GND
Switching Characteristics
(Ta = –40 to 85°C)
• VCCA = 2.5±0.2 V, VCCB = 3.3±0.3 V
Item
Symbol Min
Typ
Max
Unit
Test conditions
From(Input) To(Output)
Propagation delay
time
tPLH
1

9.1
ns
CL = 50 pF
A
B
tPHL
1

9.4
tPLH
1

9.9
B
A
tPHL
1

11.2
tZH
1

12.9
OE
A
tZL
1

14.5
tZH
1

12.8
OE
B
tZL
1

13
Output disable time tHZ
1

6.9
OE
A
tLZ
1

7.1
tHZ
1

8.9
OE
B
tLZ
1

8.8
Output enable time
Rev.0, Apr. 2002, page 8 of 15
RL = 500 Ω
ns
CL = 50 pF
RL = 500 Ω
ns
CL = 50 pF
RL = 500 Ω
HD74LVCC3245A
Switching Characteristics (cont)
(Ta = –40 to 85°C)
• VCCA = 2.7 to 3.6 V, VCCB = 3.3±0.3 V
Item
Symbol Min
Typ
Max
Unit
Test conditions
From(Input) To(Output)
Propagation delay
time
tPLH
1

7.2
ns
CL = 50 pF
A
B
tPHL
1

7.1
B
A
OE
A
OE
B
OE
A
OE
B
tPLH
1

7.6
tPHL
1

6.4
tZH
1

9.5
tZL
1

9.7
tZH
1

9.9
tZL
1

9.2
Output disable time tHZ
1

6.9
tLZ
1

6.6
tHZ
1

7.9
tLZ
1

7.5
Output enable time
RL = 500 Ω
ns
CL = 50 pF
RL = 500 Ω
ns
CL = 50 pF
RL = 500 Ω
• VCCA = 2.7 to 3.6 V, VCCB = 5.0±0.5 V
Item
Symbol Min
Typ
Max
Unit
Test conditions
From(Input) To(Output)
Propagation delay
time
tPLH
1

5.3
ns
CL = 50 pF
A
B
tPHL
1

6
tPLH
1

7
B
A
tPHL
1

5.8
tZH
1

9.5
OE
A
tZL
1

9.2
tZH
1

8.4
OE
B
OE
A
OE
B
Output enable time
tZL
1

8.1
Output disable time tHZ
1

7.8
tLZ
1

7
tHZ
1

7
tLZ
1

7.3
RL = 500 Ω
ns
CL = 50 pF
RL = 500 Ω
ns
CL = 50 pF
RL = 500 Ω
Rev.0, Apr. 2002, page 9 of 15
HD74LVCC3245A
Operating Characteristics
Item
Symbol VCCA (V)
Power dissipation
capacitance
CPD
5.0
VCCB (V)
Min
Typ
Max
Unit Test Conditions
3.0

38

pF
f = 10 MHz
CL = 0
Power-up considerations
Level-translation devices offer an opportunity for successful mixed-voltage signal design.A proper powerup 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.0, Apr. 2002, page 10 of 15
HD74LVCC3245A
Test Circuit
See under table
S1
500 Ω
OPEN
GND
*1
CL = 50 pF
500 Ω
Load circuit for outputs
S1
Symbol
VCCA = 2.5±0.2 V
VCCB = 3.3±0.3 V
A/OE to B
VCCA = 2.7 to 3.6 V
VCCB = 3.3±0.3 V
B/OE to A A/OE to B
VCCA = 2.7 to 3.6 V
VCCB = 5±0.5 V
B/OE to A A/OE to B
B/OE to A
t PLH / tPHL
OPEN
OPEN
OPEN
OPEN
OPEN
OPEN
t ZH / t HZ
GND
GND
GND
GND
GND
GND
t ZL / t LZ
6V
2 × VCCA
6V
6V
2 × VCCB
6V
Note: 1. CL includes probe and jig capacitance.
Rev.0, Apr. 2002, page 11 of 15
HD74LVCC3245A
Waveforms – 1
tr
tf
90 %
Vref1
Vref1
Input
VIH
90 %
10 %
10 %
GND
t PHL
t PLH
V OH
Vref2
Output
Vref2
V OL
VCCA = 2.5±0.2 V
VCCB = 3.3±0.3 V
VCCA = 2.7 to 3.6 V
VCCB = 3.3±0.3 V
VCCA = 2.7 to 3.6 V
VCCB = 5±0.5 V
A to B
B to A
A to B
B to A
A to B
B to A
VIH
VCCA
2.7 V
2.7 V
2.7 V
2.7 V
VCCB
Vref1
1/2 VCCA
1.5 V
1.5 V
1.5 V
1.5 V
1/2 VCCB
Vref2
1.5 V
1/2 VCCA
1.5 V
1.5 V
1/2 VCCB
1.5 V
Symbol
Rev.0, Apr. 2002, page 12 of 15
HD74LVCC3245A
Waveforms – 2
tf
tr
90 %
Vref1
Output
Control
VIH
90 %
Vref1
10 %
10 %
t ZL
GND
t LZ
VOH
Waveform - A
Vref2
VrefL
t ZH
V OL
t HZ
V OH
VrefH
Waveform - B
Vref2
GND
Symbol
VCCA = 2.5±0.2 V
VCCB = 3.3±0.3 V
VCCA = 2.7 to 3.6 V
VCCB = 3.3±0.3 V
VCCA = 2.7 to 3.6 V
VCCB = 5±0.5 V
OE to B
OE to A
OE to B
OE to A
OE to B
OE to A
VIH
VCCA
VCCA
2.7 V
2.7 V
2.7 V
2.7 V
Vref1
1/2 VCCA
1/2 VCCA
1.5 V
1.5 V
1.5 V
1.5 V
Vref2
1.5 V
1/2 VCCA
1.5 V
1.5 V
1/2 VCCB
1.5 V
VrefH
VOH–0.3 V VOH–0.15 V VOH–0.3 V VOH–0.3 V VOH–0.3 V VOH–0.3 V
VrefL
VOL+0.3 V VOL+0.15 V VOL+0.3 V VOL+0.3 V VOL+0.3 V VOL+0.3 V
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.0, Apr. 2002, page 13 of 15
HD74LVCC3245A
Package Dimensions
As of January, 2002
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.0, Apr. 2002, page 14 of 15
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
Hitachi Code
JEDEC
JEITA
Mass (reference value)
TTP-24DBV
—
—
0.08 g
HD74LVCC3245A
Disclaimer
1. Hitachi neither warrants nor grants licenses of any rights of Hitachi’s or any third party’s patent,
copyright, trademark, or other intellectual property rights for information contained in this document.
Hitachi bears no responsibility for problems that may arise with third party’s rights, including
intellectual property rights, in connection with use of the information contained in this document.
2. Products and product specifications may be subject to change without notice. Confirm that you have
received the latest product standards or specifications before final design, purchase or use.
3. Hitachi makes every attempt to ensure that its products are of high quality and reliability. However,
contact Hitachi’s sales office before using the product in an application that demands especially high
quality and reliability or where its failure or malfunction may directly threaten human life or cause risk
of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,
traffic, safety equipment or medical equipment for life support.
4. Design your application so that the product is used within the ranges guaranteed by Hitachi particularly
for maximum rating, operating supply voltage range, heat radiation characteristics, installation
conditions and other characteristics. Hitachi bears no responsibility for failure or damage when used
beyond the guaranteed ranges. Even within the guaranteed ranges, consider normally foreseeable
failure rates or failure modes in semiconductor devices and employ systemic measures such as failsafes, so that the equipment incorporating Hitachi product does not cause bodily injury, fire or other
consequential damage due to operation of the Hitachi product.
5. This product is not designed to be radiation resistant.
6. No one is permitted to reproduce or duplicate, in any form, the whole or part of this document without
written approval from Hitachi.
7. Contact Hitachi’s sales office for any questions regarding this document or Hitachi semiconductor
products.
Sales Offices
Hitachi, Ltd.
Semiconductor & Integrated Circuits
Nippon Bldg., 2-6-2, Ohte-machi, Chiyoda-ku, Tokyo 100-0004, Japan
Tel: (03) 3270-2111 Fax: (03) 3270-5109
URL
http://www.hitachisemiconductor.com/
For further information write to:
Hitachi Semiconductor
(America) Inc.
179 East Tasman Drive
San Jose,CA 95134
Tel: <1> (408) 433-1990
Fax: <1>(408) 433-0223
Hitachi Europe Ltd.
Electronic Components Group
Whitebrook Park
Lower Cookham Road
Maidenhead
Berkshire SL6 8YA, United Kingdom
Tel: <44> (1628) 585000
Fax: <44> (1628) 585200
Hitachi Asia Ltd.
Hitachi Tower
16 Collyer Quay #20-00
Singapore 049318
Tel : <65>-6538-6533/6538-8577
Fax : <65>-6538-6933/6538-3877
URL : http://semiconductor.hitachi.com.sg
Hitachi Europe GmbH
Electronic Components Group
Dornacher Straße 3
D-85622 Feldkirchen
Postfach 201, D-85619 Feldkirchen
Germany
Tel: <49> (89) 9 9180-0
Fax: <49> (89) 9 29 30 00
Hitachi Asia Ltd.
(Taipei Branch Office)
4/F, No. 167, Tun Hwa North Road
Hung-Kuo Building
Taipei (105), Taiwan
Tel : <886>-(2)-2718-3666
Fax : <886>-(2)-2718-8180
Telex : 23222 HAS-TP
URL : http://www.hitachi.com.tw
Hitachi Asia (Hong Kong) Ltd.
Group III (Electronic Components)
7/F., North Tower
World Finance Centre,
Harbour City, Canton Road
Tsim Sha Tsui, Kowloon Hong Kong
Tel : <852>-2735-9218
Fax : <852>-2730-0281
URL : http://semiconductor.hitachi.com.hk
Copyright © Hitachi, Ltd., 2002. All rights reserved. Printed in Japan.
Colophon 6.0
Rev.0, Apr. 2002, page 15 of 15