HITACHI HD74LVCZ245A

HD74LVCZ245A
Octal Bidirectional Transceivers with 3–state Outputs
ADE-205-228A (Z)
2nd. Edition
February 1999
Description
The HD74LVCZ245A has eight buffers with three state outputs in a 20 pin package. When (T / R) is high,
data flows from the A inputs to the B outputs, and when (T / R) 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.
When V CC is between 0 and 1.5 V, the device is in the high impedance state during power up or power
down.
Low voltage and high speed operation is suitable at battery drive product (note type personal computer) and
low power consumption extends the life of a battery for long time operation.
Features
• VCC = 2.7 to 5.5 V
• All inputs VIH (Max) = 5.5 V (@VCC = 0 to 5.5 V)
• All inputs / outputs V I / O (Max) = 5.5 V (@V CC = 0 V or output off state)
• Typical VOL ground bounce < 0.8 V (@VCC = 3.3 V, Ta = 25°C)
• Typical VOH undershoot > 2.0 V (@VCC = 3.3 V, Ta = 25°C)
• High impedance state during power up and power down
• Power off disables outputs, permitting live insertion
• High output current ±24 mA (@V CC = 3.0 to 5.5 V)
HD74LVCZ245A
Function Table
Inputs
Operation
OE
T/R
L
L
B data to A bus
L
H
A data to B bus
H
X
Z
H : High level
L : Low level
X : Immaterial
Z : High impedance
Pin Arrangement
T/R
1
20 VCC
A0
2
19 OE
A1
3
18 B0
A2 4
17 B1
A3
5
16 B2
A4
6
15 B3
A5
7
14 B4
A6
8
13 B5
A7
9
12 B6
GND 10
11 B7
(Top view)
2
HD74LVCZ245A
Absolute Maximum Ratings
Item
Symbol
Ratings
Unit
Supply voltage
VCC
–0.5 to 7.0
V
Input voltage
VI
–0.5 to 7.0
V
Input / output voltage
VI/O
–0.5 to 7.0
V
–0.5 to VCC+0.5
Conditions
Output “Z” or VCC : OFF
Output “H” or “L”
Input diode current
I IK
–50
mA
VI < 0
Output diode current
I OK
–50
mA
VO < 0
Output current
IO
±50
mA
VCC, GND current
I CC or IGND
±100
mA
Storage temperature
Tstg
–65 to 150
°C
Note: 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.
Recommended Operating Conditions
Item
Symbol
Ratings
Unit
Conditions
Supply voltage
VCC
2.7 to 5.5
V
At operation
Input voltage
VI
0 to 5.5
V
Input / output voltage
VI/O
0 to 5.5
V
0 to V CC
Output current
I OH
–12
–24
I OL
Output “H” or “L”
mA
*1
VCC = 2.7 V
*1
VCC = 3.0 to 5.5 V
Input rise / fall time
t r, t f
0 to 6
ns / V
Operating temperature
Ta
–40 to +85
°C
Note:
VCC = 2.7 V
VCC = 3.0 to 5.5 V
12
24
Output “Z” or VCC : OFF
1. Duty cycle ≤ 50%
3
HD74LVCZ245A
Logic Diagram
T/R
1
19
A0
2
18
To seven other channels
4
OE
B0
HD74LVCZ245A
Electrical Characteristics (Ta = –40 to 85°C)
Item
Symbol VCC (V)
Input voltage
VIH
VIL
Output voltage
VOH
Min
Typ
Max
Unit Test Conditions
—
—
V
4.5 to 5.5 VCC×0.7 —
—
2.7 to 3.6 —
—
0.8
4.5 to 5.5 —
—
VCC×0.3
2.7 to 3.6 2.0
—
2.7
2.2
—
—
3.0
2.4
—
—
3.0
2.2
—
—
4.5
3.8
—
—
2.7 to 5.5 —
—
0.2
I OL = 100 µA
2.7
—
—
0.4
I OL = 12 mA
3.0
—
—
0.55
I OL = 24 mA
4.5
—
—
0.55
0 to 5.5
—
—
±5
µA
VIN = 0 to 5.5 V
2.7 to 5.5 —
—
±5
µA
VOUT = 0 to 5.5 V
I OZPU
0 to 1.5
—
—
±5
VOUT = 0.5 to 5.5 V,
I OZPD
1.5 to 0
—
—
±5
Output enable = don’t care
Output leak current
I OFF
0
—
—
±5
µA
VIN or VO = 5.5 V
Quiescent supply
I CC
2.7 to 3.6 —
—
225
µA
VIN = 3.6 to 5.5 V *1 , I O = 0
2.7 to 5.5 —
—
350
VIN = VCC or GND
∆I CC
2.7 to 3.6 —
—
500
VIN = one input at (VCC–0.6) V,
other inputs at V CC or GND
Input capacitance
CIN
3.3
—
3.4
—
pF
VIN = VCC or GND
Input / output
capacitance
CI/O
3.3
—
8.5
—
pF
VOUT = VCC or GND
VOL
Input current
I IN
Off state output current I OZ
current
Note:
V
I OH = –100 µA
2.7 to 5.5 VCC–0.2 —
I OH = –12 mA
I OH = –24 mA
1. This applies in the disabled state only.
5
HD74LVCZ245A
Switching Characteristics (Ta = –40 to 85°C)
Item
Symbol VCC (V)
Min
Typ
Max
Unit
FROM
(Input)
TO
(Output)
Propagation delay time
t PLH
2.7
—
—
7.3
ns
A or B
B or A
t PHL
3.3±0.3 1.5
—
6.3
5.0±0.5 —
—
4.8
t ZH
2.7
—
9.5
ns
OE
A or B
t ZL
3.3±0.3 1.5
—
8.5
5.0±0.5 —
—
7.0
t HZ
2.7
—
8.5
ns
OE
A or B
t LZ
3.3±0.3 1.7
—
7.5
5.0±0.5 —
—
6.5
t OSLH
2.7
—
—
—
t OSHL
3.3±0.3 —
—
1.0
5.0±0.5 —
—
1.0
Output enable time
Output disable time
Between output pin skew
*1
—
—
ns
Note : 1. This parameter is characterized but not tested.
t OSLH = |tPLHm–t PLHn |, tOSHL = |tPHLm–t PHLn |
Test Circuit
VCC
VCC
Pulse generator
Zout = 50 Ω
See Function Table
OE
Input
Output
A0
S1
500 Ω
B0
CL =
50 pF
T/R
450 Ω
6
OPEN
See
under table
*1
GND
50 Ω Scope
Symbol
Note: 1. C L includes probe and jig capacitance.
S2
S2
Vcc=2.7V,
3.3±0.3V
Vcc=5.0±0.5V
t PLH / t PHL
OPEN
OPEN
t ZH/ t HZ
t ZL / t LZ
GND
6V
GND
2×VCC
HD74LVCZ245A
• Waveforms – 1
tr
tf
90 %
Input
VIH
90 %
Vref
Vref
10 %
10 %
GND
t PHL
t PLH
VOH
In phase output
Vref
Vref
VOL
• Waveforms – 2
tf
OE
tr
90 %
Vref
VIH
90 %
Vref
10 %
t ZL
10 %
GND
t LZ
≈VOH1
Waveform – A
Vref
t ZH
Waveform – B
Vref
VOL + 0.3 V
VOL
t HZ
VOH
VOH – 0.3 V
≈VOL1
TEST
VIH
Vcc=2.7V
3.3±0.3V
Vcc=5.0±0.5V
2.7 V
1.5 V
VOH1
3V
VCC
50%VCC
VCC
VOL1
GND
GND
Vref
Notes: 1. Input waveform : PRR = 10 MHz, duty cycle 50%, t r = 2.5 ns, t f = 2.5 ns
2. Waveform – A shows input conditions such that the output is “L” level
when enabled by the output control.
3. Waveform – B shows input conditions such that the output is “H” level
when enabled by the output control.
7
HD74LVCZ245A
Power up / down Characteristics
4.0
Ta = 25°C
Output enable = “L”
VOUT (V)
3.0
2.0
Disable area
Enable area
1.0
0
0
1.0
2.0
VCC (V)
8
3.0
4.0
HD74LVCZ245A
Package Dimensions
Unit : mm
12.6
13 Max
11
1
10
1.27
0.42 ± 0.08
0.40 ± 0.06
0.10 ± 0.10
0.80 Max
0.22 ± 0.05
0.20 ± 0.04
2.20 Max
5.5
20
0.20
7.80 +– 0.30
1.15
0° – 8°
0.70 ± 0.20
0.15
0.12 M
Dimension including the plating thickness
Base material dimension
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
FP-20DA
—
Conforms
0.31 g
9
HD74LVCZ245A
6.50
6.80 Max
11
1
10
4.40
20
0.65
0.22 +0.08
–0.07
0.20 ± 0.06
1.0
0.13 M
6.40 ± 0.20
Dimension including the plating thickness
Base material dimension
10
0.07 +0.03
–0.04
0.10
0.17 ± 0.05
0.15 ± 0.04
1.10 Max
0.65 Max
0° – 8°
0.50 ± 0.10
Hitachi Code
JEDEC
EIAJ
Weight (reference value)
TTP-20DA
—
—
0.07 g
Cautions
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.
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