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参数资料
| 型号： | SN74CBTR3245DWR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | CBT/FST/QS/5C/B SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| 封装： | PLASTIC, SO-20 |
| 文件页数： | 1/4页 |
| 文件大小： | 58K |
| 代理商： | SN74CBTR3245DWR |
SN74CBTR3245
OCTAL FET BUS SWITCH
SCDS080A – JULY 1998 – REVISED MAY 2000
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Functionally Equivalent to QS3245
D Standard ’245-Type Pinout
D 25- Switch Connection Between Two
Ports
D TTL-Compatible Input Levels
D Package Options Include Plastic
Small-Outline (DW), Shrink Small-Outline
(DB, DBQ), Thin Very Small-Outline (DGV),
and Thin Shrink Small-Outline (PW)
Packages
description
The SN74CBTR3245 provides eight bits of
high-speed TTL-compatible bus switching in 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 output enable (OE) is low, the switch is on, and port A is
connected to port B. When OE is high, the switch is open, and a high-impedance state exists between the two
ports.
The device has equivalent 25-
series resistors to reduce signal-reflection noise. This eliminates the need for
external terminating resistors.
The SN74CBTR3245 is characterized for operation from –40
°C to 85°C.
FUNCTION TABLE
INPUT
OE
FUNCTION
L
A port = B port
H
Disconnect
logic diagram (positive logic)
OE
A1
A8
B1
B8
2
9
19
18
11
PRODUCT
PREVIEW
PRODUCT PREVIEW information concerns products in the formative or
design phase of development. Characteristic data and other
specifications are design goals. Texas Instruments reserves the right to
change or discontinue these products without notice.
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
Copyright
2000, 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.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| SN74CBTS16211DGGR | 功能描述:数字总线开关 IC 24bit w/Schotky Clmp RoHS:否 制造商:Texas Instruments 开关数量:24 传播延迟时间:0.25 ns 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:TSSOP-56 封装:Reel |
| SN74CBTS16211DGVR | 功能描述:数字总线开关 IC 16-Bit Buffer/Driver With 3-State Outputs RoHS:否 制造商:Texas Instruments 开关数量:24 传播延迟时间:0.25 ns 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:TSSOP-56 封装:Reel |
| SN74CBTS16211DL | 功能描述:数字总线开关 IC 24bit w/Schotky Clmp RoHS:否 制造商:Texas Instruments 开关数量:24 传播延迟时间:0.25 ns 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:TSSOP-56 封装:Reel |
| SN74CBTS16211DLG4 | 功能描述:数字总线开关 IC 16-Bit Buffer/Driver With 3-State Outputs RoHS:否 制造商:Texas Instruments 开关数量:24 传播延迟时间:0.25 ns 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:TSSOP-56 封装:Reel |
| SN74CBTS16211DLR | 功能描述:数字总线开关 IC 24-Bit FET Bus Switch RoHS:否 制造商:Texas Instruments 开关数量:24 传播延迟时间:0.25 ns 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:TSSOP-56 封装:Reel |
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