SN74LVCZ16245A Datasheet, PDF (1/11 Pages) Texas Instruments – 16-BIT BUS TRANSCEIVER WITH 3-STATE OUTPUTS

SN74LVCZ16245A
16-BIT BUS TRANSCEIVER
WITH 3-STATE OUTPUTS
SCES278D – JUNE 1999 – REVISED AUGUST 2002
D Member of the Texas Instruments
Widebus  Family
D Operates From 2.7 V to 3.6 V
D Inputs Accept Voltages to 5.5 V
D Max t_pd of 3.7 ns at 3.3 V
D I_off and Power-Up 3-State Support Hot
Insertion
D Supports Mixed-Mode Signal Operation on
All Ports (5-V Input/Output Voltage With
3.3-V V_CC)
D Latch-Up Performance Exceeds 100 mA Per
JESD 78, Class II
D ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 1000-V Charged-Device Model (C101)
DGG, DGV, OR DL PACKAGE
(TOP VIEW)
1DIR 1
1B1 2
1B2 3
GND 4
1B3 5
1B4 6
V_CC 7
1B5 8
1B6 9
GND 10
1B7 11
1B8 12
2B1 13
2B2 14
48 1OE
47 1A1
46 1A2
45 GND
44 1A3
43 1A4
42 V_CC
41 1A5
40 1A6
39 GND
38 1A7
37 1A8
36 2A1
35 2A2
description/ordering information
GND 15
2B3 16
34 GND
33 2A3
This 16-bit (dual-octal) noninverting bus
transceiver is designed for 2.7-V to 3.6-V V_CC
operation.
The SN74LVCZ16245A is designed for
asynchronous communication between data
buses. The control-function implementation
minimizes external timing requirements.
2B4 17
V_CC 18
2B5 19
2B6 20
GND 21
2B7 22
2B8 23
2DIR 24
32 2A4
31 V_CC
30 2A5
29 2A6
28 GND
27 2A7
26 2A8
25 2OE
This device can be used as two 8-bit transceivers
or one 16-bit transceiver. It allows data
transmission 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 device so that the buses
are effectively isolated.
Inputs can be driven from either 3.3-V or 5-V devices. This feature allows the use of these devices as translators
in a mixed 3.3-V/5-V system environment.
When V_CC is between 0 and 1.5 V, the device is in the high-impedance state during power up or power down.
However, to ensure the high-impedance state above 1.5 V, OE 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
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
–40°C to 85°C
SSOP – DL
TSSOP – DGG
Tube
Tape and reel
Tape and reel
SN74LVCZ16245ADL
SN74LVCZ16245ADLR
SN74LVCZ16245ADGGR
LVCZ16245A
LVCZ16245A
TVSOP – DGV Tape and reel SN74LVCZ16245ADGVR CW245A
† _{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.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright  2002, Texas Instruments Incorporated
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