HD74LVC16245A
16-bit Bus Transceivers with 3-state Outputs
REJ03D0365–0400Z
(Previous ADE-205-120B(Z))
Rev.4.00
Jul. 29, 2004
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 low, 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 VOUT (Max.) = 5.5 V (@VCC = 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 output current ±24 mA (@VCC = 3.0 V to 5.5 V)
Ordering Information
Part Name
Package Type
Package Code
Package
Abbreviation
Taping Abbreviation
(Quantity)
HD74LVC16245ATEL
TSSOP–48 pin
TTP–48DBV
T
EL (1,000 pcs/reel)
Function Table
Inputs
G
DIR
Operation
L
L
H
L
H
X
B data to A bus
A data to B bus
Z
H:
L:
X:
Z:
High level
Low level
Immaterial
High impedance
Rev.4.00 Jul. 29, 2004 page 1 of 7
HD74LVC16245A
Absolute Maximum Ratings
Item
Symbol
Ratings
Unit
Supply voltage
VCC
Input diode current
Input voltage
Output diode current
IIK
VI
IOK
V
mA
V
mA
Input / Output voltage
VI/O
Output current
VCC, GND current / pin
Storage temperature
IO
ICC or IGND
Tstg
–0.5 to 6.0
–50
–0.5 to 6.0
–50
50
–0.5 to VCC +0.5
–0.5 to 6.0
±50
100
–65 to +150
V
Conditions
VI = –0.5 V
G, DIR
VO = –0.5 V
VO = VCC+0.5 V
Output "H" or "L"
Output "Z" or VCC:OFF
mA
mA
°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
Supply voltage
VCC
Input / output voltage
VI
VI/O
Operating temperature
Output current
Ta
IOH
IOL
Input rise / fall time *1
tr, tf
Ratings
Unit
Conditions
1.5 to 5.5
V
Data retention
V
V
At operation
G, DIR
Output "H" or "L"
Output "Z" or VCC:OFF
2.0 to 5.5
0 to 5.5
0 to VCC
0 to 5.5
–40 to 85
–12
–24*2
12
24*2
10
°C
mA
mA
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%
Rev.4.00 Jul. 29, 2004 page 3 of 7
VCC = 2.7 V
VCC = 3.0 V to 5.5 V
VCC = 2.7 V
VCC = 3.0 V to 5.5 V