Datasheet HD74LVC16245A Datasheet (HIT)

HD74LVC16245A

16-bit Bus Transceivers with 3-state Outputs

ADE-205-120B(Z)

3rd Edition

December 1996

Description

The HD74LVC16245A has sixteen two direction buffers, for the fittest at two direction bus lines with three
state outputs. A direction control input, DIR. When DIR is high, data flows from the A inputs to the B
outputs. When DIR is high, data flows from the B inputs to the A outputs. When enable inputs (G) is high,
disables both A and B ports by placing then in a high impedance. 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

• VCC = 2.0 V to 5.5 V

• All inputs VIH (Max.) = 5.5 V (@VCC = 0 V to 5.5 V)

• All outputs V

• 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 output current ±24 mA (@VCC = 3.0 V to 5.5 V)

(Max.) = 5.5 V (@VCC = 0 V or output off state)

OUT

Function Table

Inputs

G DIR Operation

L L B data to A bus
L H A data to B bus
HXZ

H: High level
L: Low level
X: Immaterial
Z: High impedance

HD74LVC16245A

Pin Arrangement

1DIR

1B1
1B2

GND

1B3
1B4

V

CC

1B5
1B6

GND

1B7
1B8

2B1
2B2

GND

2B3
2B4
V

CC

2B5
2B6

GND

2B7
2B8

2DIR

10
11

12
13
14
15
16
17
18

19

20
21
22
23
24

1G

1
2

3
4
5

6
7

8

9

48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25

1A1
1A2
GND
1A3
1A4

V

CC

1A5
1A6

GND
1A7

1A8
2A1

2A2
GND
2A3

2A4
V

CC

2A5
2A6

GND
2A7

2A8
2G

(Top view)

2

HD74LVC16245A

Absolute Maximum Ratings

Item Symbol Ratings Unit Conditions

Supply voltage V
Input diode current I
Input voltage V
Output diode current I

Input / Output voltage V

Output current I
VCC, GND current / pin ICC or I

CC

IK

I

OK

I/O

O

GND

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

–0.5 to 6.0 V
–50 mA VI = –0.5 V
–0.5 to 6.0 V G, DIR
–50 mA VO = –0.5 V
50 mA VO = VCC+0.5 V
–0.5 to VCC +0.5 V Output "H" or "L"
–0.5 to 6.0 V Output "Z" or VCC:OFF
±50 mA
100 mA

Item Symbol Ratings Unit Conditions

Supply voltage V

CC

1.5 to 5.5 V Data retention

2.0 to 5.5 V At operation

Input / output voltage V

I

V

I/O

0 to 5.5 V G, DIR
0 to V

CC

V Output "H" or "L"

0 to 5.5 V Output "Z" or VCC:OFF
Operating temperature Ta –40 to 85 °C
Output current I

Input rise / fall time

*1

OH

I

OL

tr, t

f

–12 mA VCC = 2.7 V

*2

–24

mA VCC = 3.0 V to 5.5 V

12 mA VCC = 2.7 V

*2

24

mA VCC = 3.0 V to 5.5 V

10 ns/V
Notes: 1. This item guarantees maximum limit when one input switches.

Waveform : Refer to test circuit of switching characteristics.

2. duty cycle ≤ 50%

3

HD74LVC16245A

Electrical Characteristics

Item Symbol V

Input voltage V

Output voltage V

Input current I
Off state output current I

Output leak current I
Quiescent supply current I

V

V

∆I

IH

IL

OH

OL

IN

OZ

OFF

CC

CC

Ta = –40 to 85°C

(V) Min Max Unit Test Conditions

CC

2.7 to 3.6 2.0 — V

4.5 to 5.5 VCC×0.7 — V

2.7 to 3.6 — 0.8 V

4.5 to 5.5 — VCC×0.3 V

2.7 to 5.5 VCC–0.2 — V IOH = –100 µA

2.7 2.2 — V IOH = –12 mA

3.0 2.4 — V

3.0 2.2 — V IOH = –24 mA

4.5 3.8 — V

2.7 to 5.5 — 0.2 V IOL = 100 µA

2.7 — 0.4 V IOL = 12 mA

3.0 — 0.55 V IOL = 24 mA

4.5 — 0.55 V
0 to 5.5 — ±5.0 µAVIN = 5.5 V or GND

2.7 to 5.5 — ±5.0 µAVIN = VCC, GND
V

= 5.5 V or GND

OUT

0—20µAVIN / V

2.7 to 3.6 — ±20 µAVIN / V

= 5.5 V

OUT

= 3.6 to 5.5 V

OUT

2.7 to 5.5 — 20 µAVIN = VCC or GND

3.0 to 3.6 — 500 µAVIN = one input at(VCC–0.6)V,
other inputs at V

or GND

CC

4

Switching Characteristics

Ta = –40 to 85°C

Item Symbol V

Propagation delay time t

Output enable time t

Output disable time t

Between output pins skew *1t

Input capacitance C
Output capacitance C

t

t

t

t

PLH

PHL

ZH

ZL

HZ

LZ

OSLH

OSHL

IN

O

Note: 1. This parameter is characterized but not tested.

tos

LH

= | t

PLHm

– t

|, tosHL = | t

PLHn

(V) Min Typ Max Unit From (Input) To (Output)

CC

2.7 — — 5.8 ns A or B B or A

3.3±0.3 1.5 — 5.2 ns

5.0±0.5 — — 4.5 ns

2.7 — — 8.0 ns G B or A

3.3±0.3 1.5 — 7.2 ns

5.0±0.5 — — 6.0 ns

2.7 — — 8.0 ns G B or A

3.3±0.3 1.5 — 7.2 ns

5.0±0.5 — — 6.0 ns

2.7 — — — ns

3.3±0.3 — — 1.0 ns

5.0±0.5 — — 1.0 ns

2.7 — 3.0 — pF

2.7 — 15.0 — pF

– t

PHLn

|

PHLm

HD74LVC16245A

5

HD74LVC16245A

Test Circuit

V

CC

V

CC

G

Input

A1

Pulse generator

Z = 50

out

Ω

B1

See Function Table

DIR

Notes: 1. CL includes probe and jig capacitance.

2. A2-B2 to A8-B8 are identical to above load circuit.

3. S1 : Input-Output change switch.

S1

Output

C =

L

50 pF

50
Scope

Symbol

t / t

PLH PHL

t / t

ZH HZ

t / t

ZL LZ

500

450

Ω

Ω

S2

Ω

Vcc=2.7V,

3.3±0.3V

OPEN

GND

6 V

OPEN

*1 See under table

GND

S2

Vcc=5.0±0.5V

OPEN

GND

2×Vcc

Waveforms – 1

Input

Output

Notes: 1. tr = 2.5 ns, tf = 2.5 ns

2. Input waveform : PRR = 10 MHz, duty cycle 50%

10 %

t

r

V

t

PLH

90 %

ref

V

ref

90 %

t

f

V

ref

10 %

t

PHL

V

ref

V

IH

GND

V

OH

V

OL

6

Waveforms – 2

HD74LVC16245A

t

f

G

90 %

V

ref

10 %

Waveform - A

Waveform - B

Notes: 1. tr = 2.5 ns, tf = 2.5 ns

2. Input waveform : PRR = 10 MHz, duty cycle 50%

3. Waveform – A shows input conditions such that the output is "L" level when enable by the
output control.

4. Waveform – B shows input conditions such that the output is "H" level when enable by the
output control.

t

r

V

GND

≈V

V
V

≈V

50%Vcc

Vcc

GND

IH

OH1

OL

OH

OL1

90 %

V

ref

10 %

t

ZL

V

ref

t

ZH

V

ref

t

t

HZ

LZ

TEST

V

IH

V

ref

V

OH1

V

OL1

V + 0.3 V

OL

V – 0.3 V

OH

Vcc=2.7V,

3.3±0.3V

2.7 V Vcc

1.5 V
3 V

GND

Vcc=5.0±0.5V

7

12.5

12.7 Max

Unit: mm

2548

6.10

*0.21

0.19

124

+0.04
–0.05

+0.03
–0.05

0.50

0.08

M

0.65 Max

0.10

1.20 Max

*Dimension including the plating thickness

Base material dimension

0.15 ± 0.04

*0.17 ± 0.05

8.10 ± 0.20

0.13 ± 0.05

Hitachi Code
JEDEC
EIAJ
Weight

0° – 8°

0.50 ± 0.1

(reference value)

1.0

TTP-48DB
—
—

0.20 g

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of bodily injury, such as aerospace, aeronautics, nuclear power, combustion control, transportation,
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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.

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