SN74LVCH16543A
16-BIT REGISTERED TRANSCEIVER
WITH 3-STATE OUTPUTS
www.ti.com
SCAS317M–NOVEMBER 1993–REVISED MARCH 2005
FEATURES
DGG, DGV, OR DL PACKAGE
(TOP VIEW)
•
Member of the Texas Instruments Widebus™
Family
1
56
55
54
1OEAB
1LEAB
1CEAB
GND
1OEBA
1LEBA
1CEBA
•
•
•
•
Operates From 1.65 V to 3.6 V
Inputs Accept Voltages to 5.5 V
Max tpd of 5.4 ns at 3.3 V
2
3
4
53 GND
Typical VOLP (Output Ground Bounce) < 0.8 V
at VCC = 3.3 V, TA = 25°C
5
52
51
50
49
48
47
1A1
1A2
1B1
1B2
6
•
•
•
Typical VOHV (Output VOH Undershoot) > 2 V
at VCC = 3.3 V, TA = 25°C
7
V
CC
V
CC
8
1A3
1A4
1A5
GND
1A6
1A7
1A8
2A1
2A2
2A3
GND
2A4
2A5
2A6
1B3
1B4
1B5
9
Ioff Supports Partial-Power-Down Mode
Operation
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
46 GND
45 1B6
44 1B7
43 1B8
42 2B1
41 2B2
40 2B3
Supports Mixed-Mode Signal Operation on All
Ports (5-V Input/Output Voltage With
3.3-V VCC
)
•
•
•
Bus Hold on Data Inputs Eliminates the Need
for External Pullup/Pulldown Resistors
Latch-Up Performance Exceeds 250 mA Per
JESD 17
GND
2B4
2B5
2B6
39
38
37
36
35
ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
V
CC
V
CC
– 1000-V Charged-Device Model (C101)
2A7
2A8
GND
2CEAB
2LEAB
2OEAB
34 2B7
33 2B8
DESCRIPTION/ORDERING INFORMATION
GND
32
31
30
29
This 16-bit registered transceiver is designed for
1.65-V to 3.6-V VCC operation.
2CEBA
2LEBA
2OEBA
The SN74LVCH16543A can be used as two 8-bit
transceivers or one 16-bit transceiver. Separate
latch-enable (LEAB or LEBA) and output-enable
(OEAB or OEBA) inputs are provided for each
register, to permit independent control in either
direction of data flow.
ORDERING INFORMATION
TA
PACKAGE(1)
ORDERABLE PART NUMBER
SN74LVCH16543ADL
TOP-SIDE MARKING
Tube
SSOP – DL
LVCH16543A
Tape and reel
Tape and reel
Tape and reel
SN74LVCH16543ADLR
SN74LVCH16543ADGGR
SN74LVCH16543ADGVR
SN74LVCH16543AGQLR
SN74LVCH16543AZQLR
TSSOP – DGG
TVSOP – DGV
VFBGA – GQL
LVCH16543A
LDH543A
–40°C to 85°C
Tape and reel
LDH543A
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.
Widebus is a trademark of Texas Instruments.
PRODUCTION DATA information is current as of publication date.
Copyright © 1993–2005, 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.