FEATURES
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.
DESCRIPTION/ORDERING INFORMATION
DGG OR DL PACKAGE
(TOP VIEW)
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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
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
SN74ALVC164245
16-BIT 2.5-V TO 3.3-V/3.3-V TO 5-V LEVEL-SHIFTING TRANSCEIVER
WITH 3-STATE OUTPUTS
SCAS416P – MARCH 1994 – REVISED NOVEMBER 2005
• 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
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, 1 OE, and 2 OE) 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.
ORDERING INFORMATION
T
A
PACKAGE
(1)
ORDERABLE PART NUMBER TOP-SIDE MARKING
FBGA – GRD 74ALVC164245GRDR
Tape and reel VC4245
FBGA – ZRD (Pb-free) 74ALVC164245ZRDR
Tube of 25 SN74ALVC164245DL
SSOP – DL SN74ALVC164245DLR ALVC164245
Reel of 1000
74ALVC164245DLRG4
–40 ° C to 85 ° C SN74ALVC164245DGGR
Reel of 2000
74ALVC164245DGGRG4
TSSOP – DGG ALVC164245
SN74ALVC164245DGGT
Reel of 250
74ALVC164245DGGTE4
VFBGA – GQL SN74ALVC164245KR
Reel of 1000 VC4245
VFBGA – ZQL (Pb-free) 74ALVC164245ZQLR
(1) 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.
Copyright © 1994–2005, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
