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參數(shù)資料
| 型號： | CY54FCT240TDMB |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 8-BIT BUFFERS/LINE DRIVERS WITH 3-STATE OUTPUTS |
| 中文描述： | 8位緩沖器/線路驅(qū)動器，三態(tài)輸出 |
| 文件頁數(shù)： | 6/11頁 |
| 文件大?。?/td> | 150K |
| 代理商： | CY54FCT240TDMB |
CY54FCT240T, CY74FCT240T
8-BIT BUFFERS/LINE DRIVERS
WITH 3-STATE OUTPUTS
SCCS017A
–
MAY 1994
–
REVISED OCTOBER 2001
6
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted) (continued)
PARAMETER
TEST CONDITIONS
CY54FCT240T
MIN
TYP
CY74FCT240T
MIN
TYP
UNIT
MAX
MAX
One bit switching
at f1 = 10 MHz
at 50% duty cycleVIN = 3.4 V or GND
Eight bits
switching
at f1= 2 5 MHz
at f1 = 2.5 MHz
at 50% duty cycle VIN = 3.4 V or GND
VIN
≤
0.2 V or
VIN
≥
VCC
–
0.2 V
at 50% duty cycleVIN = 3.4 V or GND
Eight bits
switching
at f1= 2 5 MHz
at f1 = 2.5 MHz
at 50% duty cycle VIN = 3.4 V or GND
VIN
≤
0.2 V or
VIN
≥
VCC
–
0.2 V
0.7
1.4
VCC = 5.5 V,
Outputs open,
OEA = OEB = GND
1
2.4
VIN = 0.2 V or
VIN
≥
VCC
–
0.2 V
1.3
2.6||
3.3
10.6||
mA
IC#
One bit switching
at f1 = 10 MHz
0.7
1.4
VCC = 5.25 V,
Outputs open,
OEA = OEB = GND
1
2.4
VIN = 0.2 V or
VIN
≥
VCC
–
0.2 V
1.3
2.6||
3.3
10.6||
Ci
Co
5
10
5
10
pF
9
12
9
12
pF
Typical values are at VCC = 5 V, TA = 25
°
C.
#IC
= ICC +
ICC
×
DH
×
NT + ICCD (f0/2 + f1
×
N1)
Where:
IC
= Total supply current
ICC
= Power-supply current with CMOS input levels
ICC= Power-supply current for a TTL high input (VIN = 3.4 V)
DH
= Duty cycle for TTL inputs high
NT
= Number of TTL inputs at DH
ICCD= Dynamic current caused by an input transition pair (HLH or LHL)
f0
= Clock frequency for registered devices, otherwise zero
f1
= Input signal frequency
N1
= Number of inputs changing at f1
All currents are in milliamperes and all frequencies are in megahertz.
||Values for these conditions are examples of the ICC formula.
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相關代理商/技術參數(shù) |
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