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參數(shù)資料
| 型號(hào)： | CY54FCT191TLM |
| 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)： | 3/7頁 |
| 文件大?。?/td> | 101K |
| 代理商： | CY54FCT191TLM |
CY54FCT540T, CY74FCT540T
8-BIT BUFFERS/LINE DRIVERS
WITH 3-STATE OUTPUTS
SCCS029A
–
MAY 1994
–
REVISED OCTOBER 2001
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
CY54FCT540T
MIN
TYP
CY74FCT540T
MIN
TYP
UNIT
MAX
–
1.2
MAX
VIK
VCC = 4.5, V
VCC = 4.75 V,
VCC =4.5 V,
IIN =
–
18 mA
IIN =
–
18 mA
IOH =
–
12 mA
IOH =
–
32 mA
IOH =
–
15 mA
IOL = 48 mA
IOL = 64 mA
–
0.7
V
–
0.7
–
1.2
2.4
3.3
VOH
VCC = 4.75 V
4 75 V
2
V
2.4
3.3
VOL
VCC = 4.5 V,
VCC = 4.75 V,
All inputs
0.3
0.55
V
0.3
0.55
Vhys
0.2
0.2
V
II
VCC = 5.5 V,
VCC = 5.25 V,
VCC = 5.5 V,
VCC = 5.25 V,
VCC = 5.5 V,
VCC = 5.25 V,
VCC = 5.5 V,
VCC = 5.25 V,
VCC = 5.5 V,
VCC = 5.25 V,
VCC = 5.5 V,
VCC = 5.25 V,
VCC = 0 V,
VCC = 5.5 V,
VCC = 5.25 V,
VCC = 5.5 V, VIN = 3.4 V
§
, f1 = 0, Outputs open
VCC = 5.25 V, VIN = 3.4 V
§
, f1 = 0, Outputs open
VCC = 5.5 V, 50% duty cycle, Outputs open,
One bit switching at f1 = 10 MHz,
OEA = OEB = GND or OEA = GND and OEB = VCC,
VIN
≤
0.2 V or VIN
≥
VCC
–
0.2 V
VCC = 5.25 V, 50% duty cycle, Outputs open,
One bit switching at f1 = 10 MHz,
OEA = OEB = GND or OEA = GND and OEB = VCC,
VIN
≤
0.2 V or VIN
≥
VCC
–
0.2 V
Typical values are at VCC = 5 V, TA = 25
°
C.
Not more than one output should be shorted at a time. Duration of short should not exceed one second. The use of high-speed test apparatus and/or
sample-and-hold techniques are preferable to minimize internal chip heating and more accurately reflect operational values. Otherwise, prolonged
shorting of a high output can raise the chip temperature well above normal and cause invalid readings in other parametric tests. In any sequence
of parameter tests, IOS tests should be performed last.
§
Per TTL-driven input (VIN = 3.4 V); all other inputs at VCC or GND
This parameter is derived for use in total power-supply calculations.
VIN = VCC
VIN = VCC
VIN = 2.7 V
VIN = 2.7 V
VIN = 0.5 V
VIN = 0.5 V
VOUT = 2.7 V
VOUT = 2.7 V
VOUT = 0.5 V
VOUT = 0.5 V
VOUT = 0 V
VOUT = 0 V
VOUT = 4.5 V
VIN
≤
0.2 V,
VIN
≤
0.2 V,
5
μ
A
5
IIH
±
1
μ
A
±
1
IIL
±
1
μ
A
±
1
IOZH
10
μ
A
10
IOZL
–
10
μ
A
–
10
–
60
–
120
–
225
mA
IOS
–
60
–
120
–
225
Ioff
±
1
0.2
±
1
μ
A
ICC
VIN
≥
VCC
–
0.2 V
VIN
≥
VCC
–
0.2 V
0.1
mA
0.1
0.2
ICC
0.5
2
mA
0.5
2
0.06
0.12
mA/
MHz
ICCD
0.06
0.12
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