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参数资料
| 型号： | SN74LVTH573RGYR |
| 厂商： | Texas Instruments |
| 文件页数： | 12/25页 |
| 文件大小： | 0K |
| 描述： | IC D-TYPE LATCH OCT 3-ST 20-VQFN |
| 标准包装： | 1 |
| 系列： | 74LVTH |
| 逻辑类型： | D 型透明锁存器 |
| 电路： | 8:8 |
| 输出类型： | 三态 |
| 电源电压： | 2.7 V ~ 3.6 V |
| 独立电路： | 1 |
| 延迟时间 - 传输： | 2.9ns |
| 输出电流高，低： | 32mA，64mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-VFQFN 裸露焊盘 |
| 供应商设备封装： | 20-VQFN-EP（3.5x4.5） |
| 包装： | 标准包装 |
| 产品目录页面： | 1001 (CN2011-ZH PDF) |
| 其它名称： | 296-13988-6 |
SN54LVTH573, SN74LVTH573
3.3-V ABT OCTAL TRANSPARENT D-TYPE LATCHES
WITH 3-STATE OUTPUTS
SCBS687H MAY 1997 REVISED SEPTEMBER 2003
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description/ordering information (continued)
These octal latches are designed specifically for low-voltage (3.3-V) VCC operation, but with the capability to
provide a TTL interface to a 5-V system environment.
The eight latches of the ’LVTH573 devices are transparent D-type latches. While the latch-enable (LE) input
is high, the Q outputs follow the data (D) inputs. When LE is taken low, the Q outputs are latched at the logic
levels set up at the D inputs.
A buffered output-enable (OE) input can be used to place the eight outputs in either a normal logic state (high
or low logic levels) or a high-impedance state. In the high-impedance state, the outputs neither load nor drive
the bus lines significantly. The high-impedance state and increased drive provide the capability to drive bus
lines without need for interface or pullup components.
OE does not affect the internal operations of the latches. Old data can be retained or new data can be entered
while the outputs are in the high-impedance state.
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.
Active bus-hold circuitry is provided to hold unused or floating data inputs at a valid logic level. Use of pullup
or pulldown resistors with the bus-hold circuitry is not recommended.
These devices are fully specified for hot-insertion applications using Ioff and power-up 3-state. The Ioff circuitry
disables the outputs, preventing damaging current backflow through the devices when they are powered down.
The power-up 3-state circuitry places the outputs in the high-impedance state during power up and power down,
which prevents driver conflict.
terminal assignments
1234
A
1D
OE
VCC
1Q
B
3D
3Q
2D
2Q
C
5D
4D
5Q
4Q
D
7D
7Q
6D
6Q
E
GND
8D
LE
8Q
FUNCTION TABLE
(each latch)
INPUTS
OUTPUT
OE
LE
D
OUTPUT
Q
L
H
L
HL
L
LX
Q0
H
X
Z
SN74LVTH573 . . . GQN OR ZQN PACKAGE
(TOP VIEW)
1
234
A
B
C
D
E
相关PDF资料 |
PDF描述 |
|---|---|
| SN74LVTH573DBR | IC OCTAL LATCH TRI-STATE 20-SSOP |
| 1546105-7 | TERM BLOCK PLUG 7POS VERT .200 |
| 284065-7 | TERM BLOCK HEADER 7POS DL 5.08MM |
| 284041-7 | TERM BLOCK PLUG 7POS VERT 5.08MM |
| 284040-7 | TERM BLOCK PLUG 7POS VERT 5MM |
相关代理商/技术参数 |
参数描述 |
|---|---|
| SN74LVTH573RGYRG4 | 功能描述:闭锁 3 St ABT Octal DType RoHS:否 制造商:Micrel 电路数量:1 逻辑类型:CMOS 逻辑系列:TTL 极性:Non-Inverting 输出线路数量:9 高电平输出电流: 低电平输出电流: 传播延迟时间: 电源电压-最大:12 V 电源电压-最小:5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-16 封装:Reel |
| SN74LVTH573ZQNR | 功能描述:闭锁 3.3V ABT Octal Transp DType 闭锁 RoHS:否 制造商:Micrel 电路数量:1 逻辑类型:CMOS 逻辑系列:TTL 极性:Non-Inverting 输出线路数量:9 高电平输出电流: 低电平输出电流: 传播延迟时间: 电源电压-最大:12 V 电源电压-最小:5 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:SOIC-16 封装:Reel |
| SN74LVTH574DB | 功能描述:触发器 3.3V ABT Octal Edge Trgerd DTyp FlipFlop RoHS:否 制造商:Texas Instruments 电路数量:2 逻辑系列:SN74 逻辑类型:D-Type Flip-Flop 极性:Inverting, Non-Inverting 输入类型:CMOS 输出类型: 传播延迟时间:4.4 ns 高电平输出电流:- 16 mA 低电平输出电流:16 mA 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:X2SON-8 封装:Reel |
| SN74LVTH574DBE4 | 功能描述:触发器 3.3V ABT Octal Edge Trgerd DTyp FlipFlop RoHS:否 制造商:Texas Instruments 电路数量:2 逻辑系列:SN74 逻辑类型:D-Type Flip-Flop 极性:Inverting, Non-Inverting 输入类型:CMOS 输出类型: 传播延迟时间:4.4 ns 高电平输出电流:- 16 mA 低电平输出电流:16 mA 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:X2SON-8 封装:Reel |
| SN74LVTH574DBG4 | 功能描述:触发器 3.3V ABT Octal Edge Trgerd DTyp FlipFlop RoHS:否 制造商:Texas Instruments 电路数量:2 逻辑系列:SN74 逻辑类型:D-Type Flip-Flop 极性:Inverting, Non-Inverting 输入类型:CMOS 输出类型: 传播延迟时间:4.4 ns 高电平输出电流:- 16 mA 低电平输出电流:16 mA 电源电压-最大:5.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:X2SON-8 封装:Reel |
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