SN74LVC16T245 Datasheet, PDF (1/17 Pages) Texas Instruments – 16 BIT DUAL SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3 STATE OUTPUTS

SN74LVC16T245
16ĆBIT DUALĆSUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3ĆSTATE OUTPUTS
SCES585 − JULY 2004
D Control Inputs V_IH/V_IL Levels are
Referenced to V_CCA Voltage
D V_CC Isolation Feature − If Either V_CC Input
Is at GND, Both Ports Are in the
High-Impedance State
D Overvoltage-Tolerant Inputs/Outputs Allow
Mixed-Voltage-Mode Data Communications
D Fully Configurable Dual-Rail Design Allows
Each Port to Operate Over the Full 1.65-V to
5.5-V Power-Supply Range
D I_off Supports Partial-Power-Down Mode
Operation
description/ordering information
This 16-bit noninverting bus transceiver uses two
separate configurable power-supply rails. The
A port is designed to track V_CCA. V_CCA accepts
any supply voltage from 1.65 V to 5.5 V. The B port
is designed to track V_CCB. V_CCB accepts any
supply voltage from 1.65 V to 5.5 V. This allows for
universal low-voltage bidirectional translation
between any of the 1.8-V, 2.5-V, 3.3-V, and 5-V
voltage nodes.
The SN74LVC16T245 is designed for
asynchronous communication between data
buses. The device transmits data from the A bus
to the B bus or from the B bus to the A bus,
depending on the logic level at the
direction-control (DIR) input. The output-enable
(OE) input can be used to disable the outputs so
the buses are effectively isolated.
DGG OR DGV PACKAGE
(TOP VIEW)
1DIR 1
1B1 2
1B2 3
GND 4
1B3 5
1B4 6
V_CCB 7
1B5 8
1B6 9
GND 10
1B7 11
1B8 12
2B1 13
2B2 14
GND 15
2B3 16
2B4 17
V_CCB 18
2B5 19
2B6 20
GND 21
2B7 22
2B8 23
2DIR 24
48 1OE
47 1A1
46 1A2
45 GND
44 1A3
43 1A4
42 V_CCA
41 1A5
40 1A6
39 GND
38 1A7
37 1A8
36 2A1
35 2A2
34 GND
33 2A3
32 2A4
31 V_CCA
30 2A5
29 2A6
28 GND
27 2A7
26 2A8
25 2OE
The SN74LVC16T245 is designed so that the
control pins (1DIR, 2DIR, 1OE, and 2OE) are
supplied by V_CCA.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
−40°C to 85°C
TSSOP − DGG Tape and reel SN74LVC16T245DGGR
TVSOP − DGV Tape and reel SN74LVC16T245DGVR
VFBGA − GQL Tape and reel SN74LVC16T245GQLR
† _{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.
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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Copyright  2004, Texas Instruments Incorporated
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