SN74AVCH8T245
8-BIT DUAL-SUPPLY BUS TRANSCEIVER
WITH CONFIGURABLE VOLTAGE TRANSLATION AND 3-STATE OUTPUTS
www.ti.com
SCES565G – APRIL 2004 – REVISED MARCH 2007
FEATURES
•
•
•
•
•
•
•
Max Data Rates:
– 320 Mbps (VCCA ≥ 1.8 V and VCCB ≥ 1.8 V)
– 170 Mbps (VCCA ≤ 1.8 V or VCCB ≤ 1.8 V)
Bus Hold on Data Inputs Eliminates the Need
for External Pullup/Pulldown Resistors
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)
– 1000-V Charged-Device Model (C101)
DGV OR PW PACKAGE
(TOP VIEW)
24
2
23
3
22
4
21
5
20
6
19
7
18
8
17
9
16
10
15
11
14
12
13
VCCB
VCCB
OE
B1
B2
B3
B4
B5
B6
B7
B8
GND
VCCA
1
1
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
24
3
4
23 VCCB
22 OE
21 B1
5
6
20 B2
19 B3
7
8
18 B4
17 B5
9
10
16 B6
15 B7
2
14 B8
11
12
13
GND
VCCA
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
GND
RHL PACKAGE
(TOP VIEW)
VCCB
•
Control Inputs VIH/VIL Levels Are Referenced
to VCCA Voltage
VCC Isolation Feature – If Either VCC Input Is at
GND, All I/O Ports Are in the High-Impedance
State
Ioff Supports Partial-Power-Down Mode
Operation
Fully Configurable Dual-Rail Design Allows
Each Port to Operate Over the Full 1.2-V to
3.6-V Power-Supply Range
I/Os Are 4.6-V Tolerant
GND
•
DESCRIPTION/ORDERING INFORMATION
This 8-bit noninverting bus transceiver uses two separate configurable power-supply rails. The
SN74AVCH8T245 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.
ORDERING INFORMATION
PACKAGE (1)
TA
QFN – RHL
–40°C to 85°C
TSSOP – PW
TVSOP – DGV
(1)
ORDERABLE PART NUMBER
Reel of 1000
SN74AVCH8T245RHLR
Tube of 60
SN74AVCH8T245PW
Reel of 2000
SN74AVCH8T245PWR
Reel of 2000
SN74AVCH8T245DGVR
TOP-SIDE MARKING
WP245
WP245
WP245
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 the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2004–2007, Texas Instruments Incorporated
