參數(shù)資料
型號: 74VHCT240ASJX
廠商: Fairchild Semiconductor
文件頁數(shù): 5/9頁
文件大?。?/td> 0K
描述: IC INVERTER DUAL 4-INPUT 20SOP
標(biāo)準(zhǔn)包裝: 2,000
系列: 74VHCT
邏輯類型: 逆變器,緩沖器
電路數(shù): 2
輸入數(shù): 4
特點: 三態(tài)
電源電壓: 4.5 V ~ 5.5 V
電流 - 靜態(tài)(最大值): 4µA
輸出電流高,低: 8mA,8mA
邏輯電平 - 低: 0.8V
邏輯電平 - 高: 2V
額定電壓和最大 CL 時的最大傳播延遲: 8.8ns @ 5V,50pF
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
供應(yīng)商設(shè)備封裝: 20-SOP
封裝/外殼: 20-SOIC(0.209",5.30mm 寬)
包裝: 帶卷 (TR)
74VHCT240A
Octal
Buff
er/Line
Driver
with
3-ST
A
TE
Outputs
1997 Fairchild Semiconductor Corporation
www.fairchildsemi.com
74VHCT240A Rev. 1.3
5
AC Electrical Characteristics
Notes:
7. Parameter guaranteed by design. tOSLH = |tPLH max – tPLH min|; tOSHL = |tPHL max – tPHL min|
8. CPD is defined as the value of the internal equivalent capacitance which is calculated from the operating
current consumption without load. Average operating current can be obtained by the equation:
ICC (Opr.) = CPD VCC fIN + ICC / 8 (per F/F). The total CPD when n pcs. of the Octal D Flip-Flop operates
can be calculated by the equation: CPD (total) = 20 + 12n
Symbol
Parameter
VCC (V)
Conditions
TA = 25°C
TA = –40°C
to +85°C
Units
Min.
Typ.
Max.
Min.
Max.
tPLH, tPHL
Propagation Delay
Time
5.0 ± 0.5
CL = 15pF
5.6
7.8
1.0
9.0
ns
CL = 50pF
6.1
8.8
1.0
10.0
tPZL, tPZH
3-STATE Output
Enable Time
5.0 ± 0.5 RL = 1k CL = 15pF
6.5
10.4
1.0
12.5
ns
CL = 50pF
7.3
11.4
1.0
13.5
tPLZ, tPHZ
3-STATE Output
Disable Time
5.0 ± 0.5 RL = 1k CL = 50pF
7.0
11.4
1.0
13.0
ns
tOSLH, tOSHL Output to Output
Skew
5.0 ± 0.5 (7)
1.0
ns
CIN
Input Capacitance
VCC = Open
4
10
pF
COUT
Output Capacitance
VCC = 5.0V
9
pF
CPD
Power Dissipation
Capacitance
(8)
19
pF
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