参数资料
型号: 74LVT2244WMX
厂商: Fairchild Semiconductor
文件页数: 5/9页
文件大小: 0K
描述: IC BUFF/DVR TRI-ST DUAL 20SOIC
标准包装: 1,000
系列: 74LVT
逻辑类型: 缓冲器/线路驱动器,非反相
元件数: 2
每个元件的位元数: 4
输出电流高,低: 12mA,12mA
电源电压: 2.7 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 20-SOIC(0.295",7.50mm 宽)
供应商设备封装: 20-SOIC
包装: 带卷 (TR)
1999 Fairchild Semiconductor Corporation
www.fairchildsemi.com
74LVT2244, 74LVTH2244 Rev. 1.5.0
5
74L
VT2244,
74L
VTH2244
Lo
w
V
olta
g
e
Octal
Buffer/Line
Driver
with
3-ST
A
TE
Outputs
and
25
Series
Resistor
s
in
the
Outputs
Dynamic Switching Characteristics(7)
Notes:
7. Characterized in SOIC package. Guaranteed parameter, but not tested.
8. Max number of outputs defined as (n). n–1 data inputs are driven 0V to 3V. Output under test held LOW.
AC Electrical Characteristics
Notes:
9. All typical values are at VCC = 3.3V, TA = 25°C.
10. Skew is defined as the absolute value of the difference between the actual propagation delay for any two
separate outputs of the same device. The specification applies to any outputs switching in the same direction,
either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH).
Capacitance(11)
Note:
11. Capacitance is measured at frequency f
= 1MHz, per MIL-STD-883B, Method 3012.
Symbol
Parameter
VCC (V)
Conditions
TA = 25°C
Units
CL = 50pF, RL = 500
Min.
Typ.
Max.
VOLP
Quiet Output Maximum
Dynamic VOL
3.3
(8)
0.8
V
VOLV
Quiet Output Minimum
Dynamic VOL
3.3
(8)
–0.8
V
Symbol
Parameter
TA = –40°C to +85°C,
CL = 50pF, RL = 500
Units
VCC = 3.3V ± 0.3V
VCC = 2.7V
Min.
Typ.(9)
Max.
Min.
Max.
tPLH
Propagation Delay Data to Output
1.0
4.4
1.0
5.3
ns
tPHL
1.0
4.1
1.0
4.4
tPZH
Output Enable Time
1.0
5.9
1.0
7.7
ns
tPZL
1.1
5.5
1.1
6.2
tPHZ
Output Disable Time
1.9
6.1
1.9
6.8
ns
tPLZ
1.8
4.5
1.8
4.5
tOSHL, tOSLH Output to Output Skew
(10)
1.0
ns
Symbol
Parameter
Conditions
Typical
Units
CIN
Input Capacitance
VCC = 0V, VI = 0V or VCC
3pF
COUT
Output Capacitance
VCC = 3.0V, VO = 0V or VCC
6pF
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