SN74AVC20T245_08 Datasheet, PDF (1/21 Pages) Texas Instruments – 20 BIT DUAL SUPPLY BUS TRANSCEIVER WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS

SN74AVC20T245
20ĆBIT DUALĆSUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3ĆSTATE OUTPUTS
SCES566F − MAY 2004 − REVISED APRIL 2005
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 1.2-V to
3.6-V Power-Supply Range
D I_off Supports Partial-Power-Down Mode
Operation
D I/Os Are 4.6-V Tolerant
D Max Data Rates
− 380 Mbps (1.8-V to 3.3-V Translation)
− 260 Mbps (< 1.8-V to 3.3-V Translation)
− 260 Mbps (Translate to 2.5 V)
− 210 Mbps (Translate to 1.8 V)
− 120 Mbps (Translate to 1.5 V)
− 100 Mbps (Translate to 1.2 V)
D Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
D ESD Protection Exceeds JESD 22
− 8000-V Human-Body Model (A114-A)
− 200-V Machine Model (A115-A)
− 1000-V Charged-Device Model (C101)
description/ordering information
This 20-bit noninverting bus transceiver uses two
separate configurable power-supply rails.
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
1B7 10
GND 11
1B8 12
1B9 13
1B10 14
2B1 15
2B2 16
2B3 17
GND 18
2B4 19
2B5 20
2B6 21
V_CCB 22
2B7 23
2B8 24
GND 25
2B9 26
2B10 27
2DIR 28
56 1OE
55 1A1
54 1A2
53 GND
52 1A3
51 1A4
50 V_CCA
49 1A5
48 1A6
47 1A7
46 GND
45 1A8
44 1A9
43 1A10
42 2A1
41 2A2
40 2A3
39 GND
38 2A4
37 2A5
36 2A6
35 V_CCA
34 2A7
33 2A8
32 GND
31 2A9
30 2A10
29 2OE
The SN74AVC20T245 is optimized to operate with V_CCA/V_CCB set at 1.4 V to 3.6 V. It is operational with
V_CCA/V_CCB as low as 1.2 V. The A port is designed to track V_CCA. V_CCA accepts any supply voltage from
1.2 V to 3.6 V. The B port is designed to track V_CCB. V_CCB 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.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
TSSOP − DGG
Tape and reel SN74AVC20T245DGGR AVC20T245
−40°C to 85°C
TVSOP − DGV
VFBGA − GQL
VFBGA − ZQL (Pb-free)
Tape and reel
Tape and reel
SN74AVC20T245DGVR
SN74AVC20T245GQLR
SN74AVC20T245ZQLR
WG245
WG245
† _{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.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
• POST OFFICE BOX 655303 DALLAS, TEXAS 75265
Copyright  2005, Texas Instruments Incorporated
1