SN74ALVC164245
16-BIT 2.5-V TO 3.3-V/3.3-V TO 5-V LEVEL-SHIFTING TRANSCEIVER
WITH 3-STATE OUTPUTS
www.ti.com
SCAS416P – MARCH 1994 – REVISED NOVEMBER 2005
FEATURES
•
•
•
•
•
Member of the Texas Instruments Widebus™
Family
Max t
pd
of 5.8 ns at 3.3 V
±24-mA
Output Drive at 3.3 V
Control Inputs V
IH
/V
IL
Levels Are Referenced
to V
CCA
Voltage
Latch-Up Performance Exceeds 250 mA Per
JESD 17
NOTE: New and improved versions of the SN74ALVC164245
are available. The new part numbers are SN74LVC16T245 and
SN74LVCH16T245 and should be considered for new designs.
DGG OR DL PACKAGE
(TOP VIEW)
DESCRIPTION/ORDERING INFORMATION
This 16-bit (dual-octal) noninverting bus transceiver
contains two separate supply rails. B port has V
CCB
,
which is set to operate at 3.3 V and 5 V. A port has
V
CCA
, which is set to operate at 2.5 V and 3.3 V. This
allows for translation from a 2.5-V to a 3.3-V
environment, and vice versa, or from a 3.3-V to a 5-V
environment, and vice versa.
The SN74ALVC164245 is designed for asynchronous
communication between data buses. The control
circuitry (1DIR, 2DIR, 1OE, and 2OE) is powered by
V
CCA
.
To ensure the high-impedance state during power up
or power down, the output-enable (OE) input should
be tied to V
CC
through a pullup resistor; the minimum
value of the resistor is determined by the
current-sinking capability of the driver.
1DIR
1B1
1B2
GND
1B3
1B4
(3.3 V, 5 V) V
CCB
1B5
1B6
GND
1B7
1B8
2B1
2B2
GND
2B3
2B4
(3.3 V, 5 V) V
CCB
2B5
2B6
GND
2B7
2B8
2DIR
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1OE
1A1
1A2
GND
1A3
1A4
V
CCA
(2.5 V, 3.3 V)
1A5
1A6
GND
1A7
1A8
2A1
2A2
GND
2A3
2A4
V
CCA
(2.5 V, 3.3 V)
2A5
2A6
GND
2A7
2A8
2OE
ORDERING INFORMATION
T
A
FBGA – GRD
FBGA – ZRD (Pb-free)
SSOP – DL
–40°C to 85°C
TSSOP – DGG
Reel of 250
VFBGA – GQL
VFBGA – ZQL (Pb-free)
(1)
Reel of 1000
PACKAGE
(1)
Tape and reel
Tube of 25
Reel of 1000
Reel of 2000
ORDERABLE PART NUMBER
74ALVC164245GRDR
74ALVC164245ZRDR
SN74ALVC164245DL
SN74ALVC164245DLR
74ALVC164245DLRG4
SN74ALVC164245DGGR
74ALVC164245DGGRG4
SN74ALVC164245DGGT
74ALVC164245DGGTE4
SN74ALVC164245KR
74ALVC164245ZQLR
VC4245
ALVC164245
ALVC164245
TOP-SIDE MARKING
VC4245
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Widebus is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1994–2005, Texas Instruments Incorporated
TI [ TEXAS INSTRUMENTS ]
