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參數(shù)資料
| 型號： | CY2291 |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | Three-PLL General Purpose EPROM Programmable Clock Generator |
| 中文描述： | 三鎖相環(huán)通用EPROM的可編程時鐘發(fā)生器 |
| 文件頁數(shù)： | 4/13頁 |
| 文件大?。?/td> | 121K |
| 代理商： | CY2291 |
CY2291
4
Maximum Ratings
(Above which the useful life may be impaired. For user guide-
lines, not tested.)
Supply Voltage...............................................
–
0.5V to +7.0V
DC Input Voltage............................................
–
0.5V to +7.0V
Storage Temperature .................................
–
65
°
C to +150
°
C
Operating Conditions
[5]
Max. Soldering Temperature (10 sec) ..........................260
°
C
Junction Temperature...................................................150
°
C
Static Discharge Voltage.............................................>2000V
(per MIL-STD-883, Method 3015)
Parameter
V
DD
V
DD
V
BATT
T
A
Description
Part Numbers
Min.
4.5
Max.
5.5
Unit
V
Supply Voltage, 5.0V operation
All
Supply Voltage, 3.3V operation
All
3.0
3.6
V
Battery Backup Voltage
All
2.0
5.5
V
°
C
°
C
pF
Commercial Operating Temperature, Ambient
CY2291/CY2291F
0
+70
Industrial Operating Temperature, Ambient
CY2291I/CY2291FI
40
+85
C
LOAD
C
LOAD
f
REF
Max. Load Capacitance 5.0V Operation
All
25
Max. Load Capacitance 3.3V Operation
All
15
pF
External Reference Crystal
External Reference Clock
[6, 7, 8]
All
10.0
25.0
MHz
All
1
30
MHz
Electrical Characteristics, Commercial 5.0V
Parameter
V
OH
V
OL
V
OH
–
32
Description
Conditions
Min.
2.4
Typ.
Max.
Unit
V
HIGH-Level Output Voltage
I
OH
= 4.0 mA
I
OL
= 4.0 mA
I
OH
= 0.5 mA
LOW-Level Output Voltage
0.4
V
32.768-kHz HIGH-Level
Output Voltage
V
BATT
0.5
V
V
OL
–
32
32.768-kHz LOW-Level
Output Voltage
HIGH-Level Input Voltage
[9]
LOW-Level Input Voltage
[9]
I
OL
= 0.5 mA
0.4
V
V
IH
V
IL
I
IH
I
IL
I
OZ
I
DD
Except crystal pins
2.0
V
Except crystal pins
0.8
V
μ
A
μ
A
μ
A
mA
Input HIGH Current
V
IN
= V
DD
–
0.5V
V
IN
= +0.5V
Three-state outputs
<1
10
Input LOW Current
<1
10
Output Leakage Current
V
DD
Supply Current
[10]
Commercial
250
V
DD
= V
DD
Max., 5V operation
75
100
I
DDS
V
DD
Power Supply Current
in Shutdown Mode
[10]
Shutdown active,
excluding V
BATT
V
BATT
= 3.0V
CY2291/CY2291F
10
50
μ
A
I
BATT
V
BATT
Power Supply
Current
5
15
μ
A
Notes:
5.
6.
7.
8.
Electrical parameters are guaranteed by design with these operating conditions, unless otherwise noted.
External input reference clock must have a duty cycle between 40% and 60%, measured at V
/2.
Please refer to application note
“
Crystal Oscillator Topics
”
for information on AC-coupling the external input reference clock.
The oscillator circuit is optimized for a crystal reference and for external reference clocks up to 20 MHz. For external reference clocks above 20 MHz, it is
recommended that a 150
pull-up resistor to V
DD
be connected to the Xout pin.
Xtal inputs have CMOS thresholds.
9.
= 0V or V
, Typical (
–
104) configuration, CPUCLK = 66 MHz. Other configurations will vary. Power can be approximated by the following
formula (multiply by 0.65 for 3V operation): I
DD
=10+0.06
(F
CPLL
+F
UPLL
+2
F
SPLL
)+0.27
(F
CLKA
+F
CLKB
+F
CLKC
+F
CLKD
+F
CPUCLK
+F
CLKF
+F
XBUF
).
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CY2291_02 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Three-PLL General Purpose EPROM Programmable Clock Generator |
| CY2291_08 | 制造商:CYPRESS 制造商全稱:Cypress Semiconductor 功能描述:Three-PLL General Purpose EPROM Programmable Clock Generator |
| CY2291EFX | 制造商:Cypress Semiconductor 功能描述: |
| CY2291F | 功能描述:IC 3PLL EPROM CLOCK GEN 20-SOIC RoHS:否 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:- 產(chǎn)品變化通告:Product Discontinuation 04/May/2011 標準包裝:96 系列:- 類型:時鐘倍頻器，零延遲緩沖器 PLL:帶旁路 輸入:LVTTL 輸出:LVTTL 電路數(shù):1 比率 - 輸入:輸出:1:8 差分 - 輸入:輸出:無/無 頻率 - 最大:133.3MHz 除法器/乘法器:是/無 電源電壓:3 V ~ 3.6 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:16-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:管件 其它名稱:23S08-5HPGG |
| CY2291FI | 功能描述:IC 3PLL EPROM CLOCK GEN 20-SOIC RoHS:是 類別:集成電路 (IC) >> 時鐘/計時 - 時鐘發(fā)生器，PLL，頻率合成器 系列:- 標準包裝:39 系列:- 類型:* PLL:帶旁路 輸入:時鐘 輸出:時鐘 電路數(shù):1 比率 - 輸入:輸出:1:10 差分 - 輸入:輸出:是/是 頻率 - 最大:170MHz 除法器/乘法器:無/無 電源電壓:2.375 V ~ 3.465 V 工作溫度:0°C ~ 70°C 安裝類型:* 封裝/外殼:* 供應(yīng)商設(shè)備封裝:* 包裝:* |
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