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参数资料
| 型号： | SN74CB3T3384PWR |
| 厂商： | Texas Instruments |
| 文件页数： | 12/19页 |
| 文件大小： | 0K |
| 描述： | IC SWITCH BUS 10BIT FET 24-TSSOP |
| 标准包装： | 1 |
| 系列： | 74CB |
| 类型： | FET 总线开关 |
| 电路： | 5 x 1:1 |
| 独立电路： | 2 |
| 输出电流高，低： | 32mA，64mA |
| 电压电源： | 单电源 |
| 电源电压： | 2.3 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-TSSOP（0.173"，4.40mm 宽） |
| 供应商设备封装： | 24-TSSOP |
| 包装： | 标准包装 |
| 产品目录页面： | 952 (CN2011-ZH PDF) |
| 其它名称： | 296-19163-6 |
SN74CB3T3384
10BIT FET BUS SWITCH
2.5V/3.3V LOW VOLTAGE BUS SWITCH WITH 5V TOLERANT LEVEL SHIFTER
SCDS159B OCTOBER 2003 REVISED MARCH 2004
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description/ordering information (continued)
The SN74CB3T3384 is a high-speed TTL-compatible FET bus switch with low ON-state resistance (ron),
allowing for minimal propagation delay. The device fully supports mixed-mode signal operation on all data I/O
ports by providing voltage translation that tracks VCC. The SN74CB3T3384 supports systems using 5-V TTL,
3.3-V LVTTL, and 2.5-V CMOS switching standards, as well as user-defined switching levels (see Figure 1).
VCC
≈VCC
5.5 V
0 V
NOTE A: If the input high voltage (VIH) level is greater than or equal to VCC 1 V, and less than or equal to 5.5 V, the output high
voltage (VOH) level will be equal to approximately the VCC voltage level.
Input Voltages
Output Voltages
0 V
≈VCC 1 V
VCC
IN
OUT
CB3T
Figure 1. Typical DC-Voltage-Translation Characteristics
The SN74CB3T3384 is organized as two 5-bit bus switches with separate ouput-enable (1OE, 2OE) inputs. It
can be used as two 5-bit bus switches or as one 10-bit bus switch. When OE is low, the associated 5-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 5-bit bus switch is OFF, and a high-impedance state exists between the A and B ports.
This device is fully specified for partial-power-down applications using Ioff. The Ioff feature ensures that
damaging current will not 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.
FUNCTION TABLE
(each 5-bit bus switch)
INPUT
INPUT/OUTPUT
FUNCTION
INPUT
OE
INPUT/OUTPUT
A
FUNCTION
L
B
A port = B port
H
Z
Disconnect
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| SN74CB3T3384PWRE4 | 功能描述:数字总线开关 IC 3.3-V ABT Octal Bus Trncvr W/3-St Otpt 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 |
| SN74CB3T3384PWRG4 | 功能描述:数字总线开关 IC 10B FETBus Switch 2.5 V 3.3 V LO VLTG 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 |
| SN74CBT16209ADGGR | 功能描述:多路器开关 IC 18bit FET BusEx Sw RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| SN74CBT16209ADGVR | 功能描述:多路器开关 IC 18bit FET BusEx Sw RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
| SN74CBT16209ADL | 功能描述:多路器开关 IC 18bit FET BusEx Sw RoHS:否 制造商:Texas Instruments 通道数量:1 开关数量:4 开启电阻（最大值）:7 Ohms 开启时间（最大值）: 关闭时间（最大值）: 传播延迟时间:0.25 ns 工作电源电压:2.3 V to 3.6 V 工作电源电流: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:UQFN-16 |
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