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参数资料
| 型号： | SN74CB3Q3244ZQNR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 总线收发器 |
| 英文描述： | CB3Q/3VH/3C/2B SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PBGA20 |
| 封装： | GREEN, PLASTIC, VFBGA-20 |
| 文件页数： | 12/23页 |
| 文件大小： | 880K |
| 代理商： | SN74CB3Q3244ZQNR |
SN74CB3Q3244
8BIT FET BUS SWITCH
2.5V/3.3V LOW VOLTAGE HIGHBANDWIDTH BUS SWITCH
SCDS154B OCTOBER 2003 REVISED DECEMBER 2004
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description/ordering information (continued)
The SN74CB3Q3244 is organized as two 4-bit bus switches with separate output-enable (1OE, 2OE) inputs.
It can be used as two 4-bit bus switches or as one 8-bit bus switch. When OE is low, the associated 4-bit bus
switch is ON, and the A port is connected to the B port, allowing bidirectional data flow between ports. When
OE is high, the associated 4-bit bus switch is OFF, and the high-impedance state exists between the A and B
ports.
This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry prevents damaging
current backflow through the device when it is powered down. The device has isolation during power off.
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.
ORDERING INFORMATION
TA
PACKAGE
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
QFN RGY
Tape and reel
SN74CB3Q3244RGYR
BU244
SOIC DW
Tube
SN74CB3Q3244DW
CB3Q3244
SOIC DW
Tape and reel
SN74CB3Q3244DWR
CB3Q3244
SSOP DB
Tape and reel
SN74CB3Q3244DBR
BU244
40
°C to 85°C
SSOP (QSOP) DBQ
Tape and reel
SN74CB3Q3244DBQR
CB3Q3244
40 C to 85 C
TSSOP PW
Tube
SN74CB3Q3244PW
BU244
TSSOP PW
Tape and reel
SN74CB3Q3244PWR
BU244
TVSOP DGV
Tape and reel
SN74CB3Q3244DGVR
BU244
VFBGA GQN
Tape and reel
SN74CB3Q3244GQNR
BU244
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
terminal assignments
1234
A
1A1
1OE
VCC
2OE
B
1A2
2A4
2B4
1B1
C
1A3
2B3
2A3
1B2
D
1A4
2A2
2B2
1B3
E
GND
2B1
2A1
1B4
FUNCTION TABLE
(each 4-bit bus switch)
INPUT
INPUT/OUTPUT
FUNCTION
INPUT
OE
INPUT/OUTPUT
A
FUNCTION
L
B
A port = B port
H
Z
Disconnect
GQN PACKAGE
(TOP VIEW)
1
234
A
B
C
D
E
相关PDF资料 |
PDF描述 |
|---|---|
| SN74CB3Q3245PWG4 | CB3Q/3VH/3C/2B SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| SN74CB3Q3245DBQR | CB3Q/3VH/3C/2B SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20 |
| SN74CB3Q3251DGVR | CB3Q/3VH/3C/2B SERIES, 1 LINE TO 8 LINE MULTIPLEXER AND DEMUX/DECODER, TRUE OUTPUT, PDSO16 |
| SN74CB3Q3257RGYR | CB3Q/3VH/3C/2B SERIES, QUAD 1 LINE TO 2 LINE MULTIPLEXER AND DEMUX/DECODER, TRUE OUTPUT, PQCC16 |
| SN74CB3Q3345PWR | CB3Q/3VH/3C/2B SERIES, 8-BIT DRIVER, TRUE OUTPUT, PDSO20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SN74CB3Q3245DBQR | 功能描述:数字总线开关 IC 8-Bit 2.5/3.3-V Lo-V 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 |
| SN74CB3Q3245DGVR | 功能描述:数字总线开关 IC 8-Bit 2.5/3.3-V Lo-V 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 |
| SN74CB3Q3245GQNR | 功能描述:数字总线开关 IC 8-Bit 2.5/3.3-V Lo-V 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 |
| SN74CB3Q3245PW | 功能描述:数字总线开关 IC 8-Bit 2.5/3.3-V Lo-V 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 |
| SN74CB3Q3245PWE4 | 功能描述:数字总线开关 IC 8-Bit 2.5/3.3-V Lo-V 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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