參數(shù)資料
型號(hào)： ABT646A
廠商： Texas Instruments, Inc.
英文描述： OCTAL BUS TRANSCEIVERS AND REGISTERS WITH 3-STATE OUTPUTS
中文描述： 八路總線收發(fā)器和寄存器具有三態(tài)輸出
文件頁(yè)數(shù)： 1/24頁(yè)
文件大?。?/td> 488K
代理商： ABT646A
SCBS069H JULY 1991 REVISED MAY 2004
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Typical V
OLP
(Output Ground Bounce)
<1 V at V
CC
= 5 V, T
A
= 25
°
C
High-Drive Outputs (32-mA I
OH
, 64-mA I
OL
)
I
off
Supports Partial-Power-Down Mode
Operation
Latch-Up Performance Exceeds 500 mA Per
JEDEC Standard JESD-17
ESD Protection Exceeds JESD 22
2000-V Human-Body Model (A114-A)
200-V Machine Model (A115-A)
SN54ABT646A . . . JT OR W PACKAGE
SN74ABT646A . . . DB, DGV, DW, NS, NT, OR PW PACKAGE
(TOP VIEW)
5
6
7
8
9
10
11
25
24
23
22
21
20
19
4
3
2 1 28
12 13 14 15 16
OE
B1
B2
NC
B3
B4
B5
A1
A2
A3
NC
A4
A5
A6
SN54ABT646A . . . FK PACKAGE
(TOP VIEW)
C
N
D
S
B
B
A
G
N
C
S
V
A
B
17 18
27 26
C
CLKAB
SAB
DIR
A1
A2
A3
A4
A5
A6
A7
A8
GND
V
CC
CLKBA
SBA
OE
B1
B2
B3
B4
B5
B6
B7
B8
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
NC No internal connection
description/ordering information
These devices consist 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. Data on the A or B bus is clocked
into the registers on the low-to-high transition of the appropriate clock (CLKAB or CLKBA) input. Figure 1
illustrates the four fundamental bus-management functions that can be performed with the ’ABT646A devices.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP NT
Tube
SN74ABT646ANT
SN74ABT646ANT
SOIC DW
Tube
SN74ABT646ADW
ABT646A
Tape and reel
SN74ABT646ADWR
40
°
C to 85
°
C
SOP NS
Tape and reel
SN74ABT646ANSR
ABT646A
SSOP DB
Tape and reel
SN74ABT646ADBR
AB646A
TSSOP PW
Tube
SN74ABT646APW
AB646A
Tape and reel
SN74ABT646APWR
TVSOP DGV
Tape and reel
SN74ABT646ADGVR
AB646A
CDIP JT
Tube
SNJ54ABT646AJT
SNJ54ABT646AJT
55 C to 125 C
CFP W
LCCC FK
Tube
Tube
SNJ54ABT646AW
SNJ54ABT646AFK
SNJ54ABT646AW
SNJ54ABT646AFK
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are
available at www.ti.com/sc/package.
Copyright
2004, Texas Instruments Incorporated
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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.
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