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參數(shù)資料
| 型號(hào)： | CY2278A |
| 廠商： | Cypress Semiconductor Corp. |
| 英文描述： | PentiumII Clock Synthesizer/Driver for Mobile PCs with Intel 82430TX and No SDRAM(帶英特爾82430TX和2個(gè)DIMM 或3個(gè)SO-DIMM 的應(yīng)用于移動(dòng)PC機(jī)的奔騰II6x86, K6 時(shí)鐘合成器/驅(qū)動(dòng)器) |
| 中文描述： | PentiumII時(shí)鐘合成器/與英特爾82430TX和無內(nèi)存（帶英特爾82430TX內(nèi)存和2個(gè)或3個(gè)SO - DIMM插槽的應(yīng)用于移動(dòng)電腦機(jī)的奔騰II6x86，K6時(shí)鐘合成器便攜式電腦驅(qū)動(dòng)器/驅(qū)動(dòng)器） |
| 文件頁數(shù)： | 4/11頁 |
| 文件大?。?/td> | 153K |
| 代理商： | CY2278A |
CY2278A
4
Maximum Ratings
(Above which the useful life may be impaired. For user guide-
lines, not tested.)
Supply Voltage..................................................
–
0.5 to +7.0V
Input Voltage..............................................
–
0.5V to V
DD
+0.5
Storage Temperature (Non-Condensing) ...
–
65
°
C to +150
°
C
Max. Soldering Temperature (10 sec) ...................... +260
°
C
Junction Temperature............................................... +150
°
C
Package Power Dissipation .............................................. 1W
Static Discharge Voltage ...........................................>2000V
(per MIL-STD-883, Method 3015, like V
DD
pins tied together)
Actual Clock Frequency Values
Clock Output
Target Frequency
(MHz)
75.0 MHz
Actual Frequency
(MHz)
PPM
CPUCLK(0,0,0)
75.0
0
CPUCLK(0,0,1)
20.0 MHz
19.979
–
1057
CPUCLK(0,1,0)
25 MHz
24.974
–
1057
CPUCLK(0,1,1)
33.33 MHz
33.298
–
1107
CPUCLK(1,0,0)
50.0 MHz
49.947
–
1057
CPUCLK(1,0,1)
60.0 MHz
60.0
0
CPUCLK(1,1,0)
66.67 MHz
66.654
–
171
CPUCLK(1,1,1)
USBCLK
[4]
40.0 MHz
39.992
–
196
48.0
48.008
167
CLK8MHz
8.0
8.001
167
Operating Conditions
[5]
Parameter
AV
DD
, V
DDQ3
V
DDCPU,
V
DDQ2
T
A
C
L
Description
Min.
3.135
2.375
0
Max.
3.465
2.625
70
Unit
V
V
°
C
pF
Analog and Digital Supply Voltage
CPU and IOAPIC Supply Voltage
Operating Temperature, Ambient
Max. Capacitive Load on
XCPUCLK, CPUCLK, USBCLK/IRCLK, CLK8MHZ, REF1,
IOAPIC
PCICLK
REF0
Reference Frequency, Oscillator Nominal Value
20
20
30
45
f
(REF)
Notes:
4.
5.
14.318
14.318
MHz
Meets Intel USB clock requirements.
Electrical parameters are guaranteed with these operating conditions.
Electrical Characteristics
Parameter
V
IH
V
IL
V
OH
Description
Test Conditions
Min. Max. Unit
2.0
High-level Input Voltage
Except Crystal Inputs
[6]
Except Crystal Inputs
[6]
V
Low-level Input Voltage
0.8
V
High-level Output Voltage V
DDCPU
, V
DDQ2
= 2.375V
I
OH
= 9 mA
I
OH
= 13 mA IOAPIC
I
OL
= 13 mA
I
OL
= 18 mA
XCPUCLK
2.0
V
V
OL
Low-level Output Voltage V
DDCPU
, V
DDQ2
= 2.375V
XCPUCLK
0.4
V
IOAPIC
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|---|---|
| CY22800-082A | Universal Programmable Clock Generator (UPCG) |
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| CY2278APAC-1L | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CPU System Clock Generator |
| CY2278APC-1L | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CPU System Clock Generator |
| CY2278APC-2L | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CPU System Clock Generator |
| CY2278APC-3L | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CPU System Clock Generator |
| CY2278APC-4L | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CPU System Clock Generator |
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