SN54LVC646A_16 Datasheet, PDF (1/20 Pages) Texas Instruments – OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS

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FEATURES
• Operate From 1.65 V to 3.6 V
• Inputs Accept Voltages to 5.5 V
• Max t_pd of 7.4 ns at 3.3 V
• Typical V_OLP (Output Ground Bounce)
<0.8 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
• Support Mixed-Mode Signal Operation on All
Ports (5-V Input/Output Voltage With
3.3-V V_CC)
SN54LVC646A . . . JT OR W PACKAGE
SN74LVC646A . . . DB, DW, NS, OR PW PACKAGE
(TOP VIEW)
CLKAB 1
SAB 2
DIR 3
A1 4
A2 5
A3 6
A4 7
A5 8
A6 9
A7 10
A8 11
GND 12
24 V_CC
23 CLKBA
22 SBA
21 OE
20 B1
19 B2
18 B3
17 B4
16 B5
15 B6
14 B7
13 B8
SN54LVC646A, SN74LVC646A
OCTAL BUS TRANSCEIVERS AND REGISTERS
WITH 3-STATE OUTPUTS
SCAS302J – JANUARY 1993 – REVISED AUGUST 2005
• I_off Supports Partial-Power-Down Mode
Operation
• 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)
xxxx
SN54LVC646A . . . FK PACKAGE
(TOP VIEW)
4 3 2 1 28 27 26
A1 ₅
25 ^OE
A2 ₆
24 B1
A3 7
23 B2
NC 8
22 NC
A4 9
21 B3
A5 10
20 B4
A6 1112 _{13 14 15 16 17 1819} B5
NC - No internal connection
DESCRIPTION/ORDERING INFORMATION
The SN54LVC646A octal bus transceiver and register is designed for 2.7-V to 3.6-V V_CC operation, and the
SN74LVC646A octal bus transceiver and register is designed for 1.65-V to 3.6-V V_CC operation.
T_A
–40°C to 85°C
–55°C to 125°C
SOIC – DW
SOP – NS
SSOP – DB
TSSOP – PW
CDIP – JT
CFP – W
LCCC – FK
ORDERING INFORMATION
PACKAGE ⁽¹⁾
ORDERABLE PART NUMBER
TOP-SIDE MARKING
Tube of 25
Reel of 2000
SN74LVC646ADW
SN74LVC646ADWR
LVC646A
Reel of 2000
SN74LVC646ANSR
LVC646A
Reel of 2000
SN74LVC646ADBR
LC646A
Tube of 60
SN74LVC646APW
Reel of 2000
SN74LVC646APWR
LC646A
Reel of 250
SN74LVC646APWT
Tube of 15
SNJ54LVC646AJT
SNJ54LVC646AJT
Tube of 85
SNJ54LVC646AW
SNJ54LVC646AW
Tube of 42
SNJ54LVC646AFK
SNJ54LVC646AFK
(1) Package drawings, standard packing quantities, thermal data, symboliztion, 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 © 1993–2005, Texas Instruments Incorporated
On products compliant to MIL-PRF-38535, all parameters are
tested unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.