SN74AVC16T245
16-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES551C–FEBRUARY 2004–REVISED AUGUST 2005
FEATURES
DGG OR DGV PACKAGE
•
Control Inputs VIH/VIL Levels Are Referenced
(TOP VIEW)
to VCCA Voltage
1
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
1DIR
1B1
1B2
GND
1B3
1B4
1OE
1A1
1A2
GND
1A3
1A4
•
VCC Isolation Feature – If Either VCC Input Is at
GND, Both Ports Are in the High-Impedance
State
2
3
4
•
•
Overvoltage-Tolerant Inputs/Outputs Allow
Mixed-Voltage-Mode Data Communications
5
6
Fully Configurable Dual-Rail Design Allows
Each Port to Operate Over the Full 1.2-V to
3.6-V Power-Supply Range
7
V
CCB
V
CCA
8
1B5
1B6
GND
1B7
1B8
2B1
2B2
GND
2B3
2B4
1A5
1A6
GND
1A7
1A8
2A1
2A2
GND
2A3
2A4
9
•
Ioff Supports Partial-Power-Down Mode
Operation
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
•
•
I/Os Are 4.6-V Tolerant
Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
•
ESD Protection Exceeds JESD 22
– 8000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
V
CCB
V
CCA
– 1000-V Charged-Device Model (C101)
2B5
2B6
GND
2B7
2B8
2DIR
2A5
2A6
GND
2A7
2A8
2OE
DESCRIPTION/ORDERING INFORMATION
This 16-bit noninverting bus transceiver uses two
separate configurable power-supply rails. The
SN74AVC16T245 is optimized to operate with
VCCA/VCCB set at 1.4 V to 3.6 V. It is operational with
VCCA/VCCB as low as 1.2 V. The A port is designed to
track VCCA. VCCA accepts any supply voltage from
1.2 V to 3.6 V. The B port is designed to track VCCB
.
VCCB accepts any supply voltage from 1.2 V to 3.6 V.
This allows for universal low-voltage bidirectional
translation between any of the 1.2-V, 1.5-V, 1.8-V,
2.5-V, and 3.3-V voltage nodes.
The SN74AVC16T245 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
effectively are isolated.
The SN74AVC16T245 is designed so that the control pins (1DIR, 2DIR, 1OE, and 2OE) are supplied by VCCA
.
ORDERING INFORMATION
TA
PACKAGE(1)
ORDERABLE PART NUMBER
SN74AVC16T245DGGR
TOP-SIDE MARKING
TSSOP – DGG
Tape and reel
AVC16T245
WF245
TVSOP – DGV
Tape and reel
Tape and reel
SN74AVC16T245DGVR
SN74AVC16T245GQLR
SN74AVC16T245ZQLR
–40°C to 85°C
VFBGA – GQL
WF245
VFBGA – ZQL (Pb-free)
(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.
PRODUCTION DATA information is current as of publication date.
Copyright © 2004–2005, 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.