参数资料
型号: SN74ACT240N
厂商: Texas Instruments
文件页数: 14/20页
文件大小: 0K
描述: IC INVERTER DUAL 4-INPUT 20DIP
标准包装: 20
系列: 74ACT
逻辑类型: 逆变器,缓冲器
电路数: 2
输入数: 4
特点: 三态
电源电压: 4.5 V ~ 5.5 V
电流 - 静态(最大值): 4µA
输出电流高,低: 24mA,24mA
逻辑电平 - 低: 0.8V
逻辑电平 - 高: 2V
额定电压和最大 CL 时的最大传播延迟: 8.5ns @ 5V,50pF
工作温度: -40°C ~ 85°C
安装类型: 通孔
供应商设备封装: 20-PDIP
封装/外壳: 20-DIP(0.300",7.62mm)
包装: 管件
产品目录页面: 930 (CN2011-ZH PDF)
其它名称: 296-4379-5
SN54ACT240, SN74ACT240
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCAS515C JUNE 1995 REVISED OCTOBER 2002
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
recommended operating conditions (see Note 3)
SN54ACT240
SN74ACT240
UNIT
MIN
MAX
MIN
MAX
UNIT
VCC
Supply voltage
4.5
5.5
4.5
5.5
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
V
VI
Input voltage
0
VCC
0
VCC
V
VO
Output voltage
0
VCC
0
VCC
V
IOH
High-level output current
24
mA
IOL
Low-level output current
24
mA
Δt/Δv
Input transition rise or fall rate
8
ns/V
TA
Operating free-air temperature
55
125
40
85
°C
NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
V
TA = 25°C
SN54ACT240
SN74ACT240
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
I
50 A
4.5 V
4.4
4.49
4.4
IOH = 50 μA
5.5 V
5.4
5.49
5.4
V
I
24 mA
4.5 V
3.86
3.7
3.76
V
VOH
IOH = 24 mA
5.5 V
4.86
4.7
4.76
V
IOH = 50 mA
5.5 V
3.85
IOH = 75 mA
5.5 V
3.85
I
50 A
4.5 V
0.001
0.1
IOL = 50 μA
5.5 V
0.001
0.1
V
I
24 mA
4.5 V
0.36
0.5
0.44
V
VOL
IOL = 24 mA
5.5 V
0.36
0.5
0.44
V
IOL = 50 mA
5.5 V
1.65
IOL = 75 mA
5.5 V
1.65
IOZ
VO = VCC or GND
5.5 V
±0.25
±5
±2.5
μA
II
VI = VCC or GND
5.5 V
±0.1
±1
μA
ICC
VI = VCC or GND,
IO = 0
5.5 V
4
80
40
μA
ΔICC
One input at 3.4 V,
Other inputs at GND or VCC
5.5 V
0.6
1.6
1.5
mA
Ci
VI = VCC or GND
5 V
2.5
pF
Co
VI = VCC or GND
5 V
8
pF
Not more than one output should be tested at a time, and the duration of the test should not exceed 2 ms.
This is the increase in supply current for each input that is at one of the specified TTL voltage levels, rather than 0 V or VCC.
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