参数资料
型号: 74LCX16240MTDX
厂商: Fairchild Semiconductor
文件页数: 2/8页
文件大小: 0K
描述: IC INVERTER DUAL 8-INPUT 48TSSOP
标准包装: 1,000
系列: 74LCX
逻辑类型: 逆变器,缓冲器
电路数: 4
输入数: 4
特点: 三态
电源电压: 2 V ~ 3.6 V
电流 - 静态(最大值): 20µA
输出电流高,低: 24mA,24mA
逻辑电平 - 低: 0.7 V ~ 0.8 V
逻辑电平 - 高: 1.7 V ~ 2 V
额定电压和最大 CL 时的最大传播延迟: 4.5ns @ 3.3V,50pF
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
供应商设备封装: 48-TSSOP
封装/外壳: 48-TFSOP(0.240",6.10mm 宽)
包装: 带卷 (TR)
www.fairchildsemi.com
2
74LCX16240
Truth Tables
H
HIGH Voltage Level
L
LOW Voltage Level
X
Immaterial
Z
High Impedance
Functional Description
The LCX16240 contains sixteen inverting buffers with
3-STATE standard outputs. The device is nibble (4 bits)
controlled with each nibble functioning identically, but inde-
pendent of the other. The control pins may be shorted
together to obtain full 16-bit operation. The 3-STATE out-
puts are controlled by an Output Enable (OEn) input for
each nibble. When OEn is LOW, the outputs are in 2-state
mode. When OEn is HIGH, the outputs are in the high
impedance mode, but this does not interfere with entering
new data into the inputs.
Logic Diagram
Inputs
Outputs
Inputs
Outputs
OE1
I0–I3
O0–O3
OE3
I8–I11
O8–O11
LL
H
L
H
LH
L
H
L
HX
Z
H
Z
Inputs
Outputs
Inputs
Outputs
OE2
I4–I7
O4–O7
OE4
I12–I15
O12–O15
LL
H
L
H
LH
L
H
L
HX
Z
H
Z
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