參數(shù)資料
型號: SN74CBT3245ADBQ
廠商: Texas Instruments, Inc.
英文描述: OCTAL FET BUS SWITCH
中文描述: 八路FET總線開關(guān)
文件頁數(shù): 1/15頁
文件大小: 519K
代理商: SN74CBT3245ADBQ
SN74CBT3245A
OCTAL FET BUS SWITCH
SCDS002Q NOVEMBER 1992 REVISED DECEMBER 2004
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Standard ’245-Type Pinout
D 5- Switch Connection Between Two Ports
D TTL-Compatible Input Levels
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
NC
A1
A2
A3
A4
A5
A6
A7
A8
GND
VCC
OE
B1
B2
B3
B4
B5
B6
B7
B8
DB, DBQ, DGV, DW, OR PW PACKAGE
(TOP VIEW)
NC No internal connection
RGY PACKAGE
(TOP VIEW)
120
10
11
2
3
4
5
6
7
8
9
19
18
17
16
15
14
13
12
OE
B1
B2
B3
B4
B5
B6
B7
A1
A2
A3
A4
A5
A6
A7
A8
B8
V
GND
CC
NC
NC No internal connection
terminal assignments
1234
A
A1
NC
VCC
OE
B
A3
B2
A2
B1
C
A5
A4
B4
B3
D
A7
B6
A6
B5
E
GND
A8
B8
B7
NC No internal connection
description/ordering information
The SN74CBT3245A provides eight bits of high-speed TTL-compatible bus switching. The SOIC, SSOP,
TSSOP, and TVSOP packages provide a standard ’245 device pinout. The low on-state resistance of the switch
allows connections to be made with minimal propagation delay.
The device is organized as one 8-bit switch. When the output-enable (OE) input is low, the switch is on, and
port A is connected to port B. When OE is high, the switch is open, and the high-impedance state exists between
the two ports.
To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup
resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
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
2004, Texas Instruments Incorporated
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.
GQN OR ZQN PACKAGE
(TOP VIEW)
1
234
A
B
C
D
E
相關(guān)PDF資料
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