SN74LVCH16646A_08 Datasheet, PDF (1/15 Pages) Texas Instruments – 16-BIT BUS TRANSCEIVER AND REGISTER

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FEATURES
• Member of the Texas Instruments Widebus™
Family
• Operates From 1.65 V to 3.6 V
• Inputs Accept Voltages to 5.5 V
• Max t_pd of 5.7 ns at 3.3 V
• Typical V_OLP (Output Ground Bounce)
<0.8 V at V_CC = 3.3 V, T_A = 25°C
• Typical V_OHV (Output V_OH Undershoot)
>2 V at V_CC = 3.3 V, T_A = 25°C
• Supports Mixed-Mode Signal Operation on All
Ports (5-V Input/Output Voltage
With 3.3-V V_CC)
• I_off Supports Partial-Power-Down Mode
Operation
• Bus Hold on Data Inputs Eliminates the Need
for External Pullup/Pulldown Resistors
• Latch-Up Performance Exceeds 250 mA Per
JESD 17
• ESD Protection Exceeds JESD 22
– 2000-V Human-Body Model (A114-A)
– 200-V Machine Model (A115-A)
– 1000-V Charged-Device Model (C101)
DESCRIPTION/ORDERING INFORMATION
This 16-bit bus transceiver and register is designed
for 1.65-V to 3.6-V V_CC operation.
The SN74LVCH16646A can be used as two 8-bit
transceivers or one 16-bit transceiver. The device
consists of bus transceiver circuits, D-type flip-flops,
and control circuitry arranged for multiplexed
transmission of data directly from the input bus or
from the internal registers.
SN74LVCH16646A
16-BIT BUS TRANSCEIVER AND REGISTER
WITH 3-STATE OUTPUTS
SCAS318K – NOVEMBER 1993 – REVISED MARCH 2005
DGG, DGV, OR DL PACKAGE
(TOP VIEW)
1DIR 1
1CLKAB 2
1SAB 3
GND 4
1A1 5
1A2 6
V_CC 7
1A3 8
1A4 9
1A5 10
GND 11
1A6 12
1A7 13
1A8 14
2A1 15
2A2 16
2A3 17
GND 18
2A4 19
2A5 20
2A6 21
V_CC 22
2A7 23
2A8 24
GND 25
2SAB 26
2CLKAB 27
2DIR 28
56 1OE
55 1CLKBA
54 1SBA
53 GND
52 1B1
51 1B2
50 V_CC
49 1B3
48 1B4
47 1B5
46 GND
45 1B6
44 1B7
43 1B8
42 2B1
41 2B2
40 2B3
39 GND
38 2B4
37 2B5
36 2B6
35 V_CC
34 2B7
33 2B8
32 GND
31 2SBA
30 2CLKBA
29 2OE
T_A
–40°C to 85°C
ORDERING INFORMATION
PACKAGE ⁽¹⁾
ORDERABLE PART NUMBER
SSOP – DL
Tube
Tape and reel
SN74LVCH16646ADL
SN74LVCH16646ADLR
TSSOP – DGG Tape and reel
SN74LVCH16646ADGGR
TVSOP – DGV Tape and reel
SN74LVCH16646ADGVR
TOP-SIDE MARKING
LVCH16646A
LVCH16646A
LDH646A
(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.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 1993–2005, Texas Instruments Incorporated