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參數(shù)資料
| 型號： | CY54FCT191ATDM |
| 元件分類： | 通用總線功能 |
| 英文描述： | Synchronous Up/Down Counter |
| 中文描述： | 同步加/減計(jì)數(shù)器 |
| 文件頁數(shù)： | 4/7頁 |
| 文件大?。?/td> | 101K |
| 代理商： | CY54FCT191ATDM |
CY54FCT540T, CY74FCT540T
8-BIT BUFFERS/LINE DRIVERS
WITH 3-STATE OUTPUTS
SCCS029A
–
MAY 1994
–
REVISED OCTOBER 2001
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted) (continued)
PARAMETER
TEST CONDITIONS
CY54FCT540T
MIN
TYP
CY74FCT540T
MIN
TYP
UNIT
MAX
MAX
VCC = 5.5 V,
Outputs open
Out uts o en,
OEA = OEB
GND or
OEA = GND and
OEB = VCC
One bit switching
at f1 = 10 MHz
at 50% duty cycle
VIN
≤
0.2 V or
VIN
≥
VCC
–
0.2 V
VIN = 3.4 V or GND
VIN
≤
0.2 V or
VIN
≥
VCC
–
0.2 V
VIN = 3.4 V or GND
VIN
≤
0.2 V or
VIN
≥
VCC
–
0.2 V
VIN = 3.4 V or GND
VIN
≤
0.2 V or
VIN
≥
VCC
–
0.2 V
VIN = 3.4 V or GND
0.7
1.4
1
2.4
Eight bits switching
at f1 = 2.5 MHz
at 50% duty cycle
1.3
2.6||
3.3
10.6||
mA
IC#
VCC = 5.25 V,
Outputs open
Out uts o en,
OEA = OEB
GND or
OEA = GND and
OEB = VCC
One bit switching
at f1 = 10 MHz
at 50% duty cycle
0.7
1.4
1
2.4
Eight bits switching
at f1 = 2.5 MHz
at 50% duty cycle
1.3
2.6||
3.3
10.6||
Ci
Co
5
10
pF
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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| CY54FCT191ATLM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Synchronous Up/Down Counter |
| CY54FCT191CTDM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Synchronous Up/Down Counter |
| CY54FCT191CTLM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Synchronous Up/Down Counter |
| CY54FCT191TDM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Synchronous Up/Down Counter |
| CY54FCT191TLM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Synchronous Up/Down Counter |
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