參數(shù)資料
型號(hào): 74VHCT245AMTCX
廠商: Fairchild Semiconductor
文件頁(yè)數(shù): 5/9頁(yè)
文件大?。?/td> 0K
描述: IC BUFF/DVR TRI-ST 8BIT 20TSSOP
標(biāo)準(zhǔn)包裝: 1
系列: 74VHCT
邏輯類(lèi)型: 緩沖器/線路驅(qū)動(dòng)器,非反相
元件數(shù): 1
每個(gè)元件的位元數(shù): 8
輸出電流高,低: 8mA,8mA
電源電壓: 4.5 V ~ 5.5 V
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 20-TSSOP(0.173",4.40mm 寬)
供應(yīng)商設(shè)備封裝: 20-TSSOP
包裝: 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁(yè)面: 1213 (CN2011-ZH PDF)
其它名稱(chēng): 74VHCT245AMTCXDKR
74VHCT245A
Octal
Buff
er/Line
Driver
with
3-ST
A
TE
Outputs
1997 Fairchild Semiconductor Corporation
www.fairchildsemi.com
74VHCT245A 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
4.9
7.7
1.0
8.5
ns
CL = 50pF
5.4
8.7
1.0
9.5
tPZL, tPZH
3-STATE Output
Enable Time
5.0 ± 0.5
RL = 1k CL = 15pF
9.4
13.8
1.0
15.0
ns
CL = 50pF
9.9
14.8
1.0
16.0
tPLZ, tPHZ
3-STATE Output
Disable Time
5.0 ± 0.5
RL = 1k CL = 50pF
10.1
15.4
1.0
16.5
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
13
pF
CPD
Power Dissipation
Capacitance
(8)
16
pF
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