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11995-212

更新时间: 2024-02-25 04:40:17
品牌 Logo 应用领域
AMI 时钟光电二极管外围集成电路晶体
页数 文件大小 规格书
14页 190K
描述
Processor Specific Clock Generator, 133.33MHz, CMOS, PDSO48, 0.300 INCH, SSOP-48

11995-212 技术参数

生命周期:Transferred包装说明:0.300 INCH, SSOP-48
Reach Compliance Code:unknown风险等级:5.77
JESD-30 代码:R-PDSO-G48长度:15.875 mm
端子数量:48最高工作温度:70 °C
最低工作温度:最大输出时钟频率:133.33 MHz
封装主体材料:PLASTIC/EPOXY封装代码:SSOP
封装形状:RECTANGULAR封装形式:SMALL OUTLINE, SHRINK PITCH
主时钟/晶体标称频率:14.318182 MHz认证状态:Not Qualified
座面最大高度:2.794 mm最大供电电压:3.465 V
最小供电电压:3.135 V标称供电电压:3.3 V
表面贴装:YES技术:CMOS
温度等级:COMMERCIAL端子形式:GULL WING
端子节距:0.635 mm端子位置:DUAL
宽度:7.5 mmuPs/uCs/外围集成电路类型:CLOCK GENERATOR, PROCESSOR SPECIFIC
Base Number Matches:1

11995-212 数据手册

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FS6233-01  
AMERICAN MICROSYSTEMS, INC.  
Motherboard Clock Generator IC  
September 2000  
Figure 1: Block Diagram  
1.0 Features  
XIN  
VDD_R  
REF_0:1  
VSS_R  
Generates all clocks required for single-processor  
Crystal  
platforms, including:  
Oscillator  
XOUT  
M
M
M
M
M
M
Two differential current-mode Host clock pairs  
Three 66.67MHz 3.3V CK66 clock outputs  
Ten 33.3MHz 3.3V PCI clock outputs  
Two 3.3V Memory Reference clock outputs  
Two 48MHz 3.3V CK48 clock outputs  
adjust  
ISEL_0:1  
IREF  
VDD_H  
HOST_P1:2  
÷1  
÷2  
PWR_DWN#  
SS_EN#  
HOST_N1:2  
VSS_H  
VDD_66  
CK66_0:2  
VSS_66  
SSCG  
PLL  
÷3  
÷4  
Two buffered copies of the crystal reference  
SEL133/100#  
SEL_A:B  
Control of current-mode Host clocks via IREF current  
Control  
programming pin and ISEL_0:1 current multiplier pins  
VDD_P  
PCI_0:7  
VSS_P  
delay  
÷2  
Host clock frequency selection via the SEL_A,  
SEL_B, and SEL133/100# pins  
Active-low PWR_DWN# signal allows one complete  
clock cycle on each clock outputs and then shuts  
down the crystal oscillator, PLLs, and outputs  
VDD_M  
MREF_P  
MREF_N  
VSS_M  
VDD_48  
CK48_0:1  
VSS_48  
÷4  
PLL  
Spread-spectrum modulation (-0.5% at 31.5kHz) of  
SSCG PLL clocks, enabled via SS_EN# input  
FS6233  
Supports test mode and tristate output control to fa-  
cilitate board testing  
Available in a 48-pin SSOP and TSSOP  
Figure 2: Pin Configuration  
REF_1 / ISEL_1  
VDD_R  
XIN  
1
2
3
4
5
6
7
8
9
48 REF_0 / ISEL_0  
47 VSS_R  
Table 1: Clock Parameters  
46 VDD_M  
45 MREF_P  
44 MREF_N  
43 VSS_M  
42 SS_EN#  
41 HOST_P1  
40 HOST_N1  
39 VDD_H  
38 HOST_P2  
37 HOST_N2  
36 VSS_H  
CLOCK  
#
SUPPLY  
SUPPLY FREQ.  
XOUT  
PHASE SKEW  
GROUP PINS VOLTAGE GROUP  
(MHz)  
VSS_P  
PCI_0  
HOST_P  
HOST_N  
2
2
0°  
150ps  
133.33  
100.00  
PCI_1  
3.3V  
3.3V  
VDD_H  
VDD_M  
Pair to  
180°  
VDD_P  
PCI_2  
Pair  
MREF_P  
MREF_N  
CK66  
PCI  
CK48  
1
1
3
10  
2
2
0°  
180°  
0°  
66.67  
50.00  
PCI_3 10  
VSS_P 11  
-
PCI_4 12  
3.3V  
3.3V  
3.3V  
3.3V  
VDD_66  
VDD_P  
VDD_48 48.008  
VDD_R 14.318  
66.67  
33.33  
250ps  
PCI_5 13  
0°  
300ps  
VDD_P 14  
35 IREF  
0°  
0°  
-
-
PCI_6 15  
34 VDD  
REF  
PCI_7 16  
33 VSS  
VSS_P 17  
32 PWR_DWN#  
31 VDD_66  
30 CK66_0  
29 CK66_1  
28 VSS_66  
27 CK66_2  
26 VDD_66  
25 VDD_48  
PCI_8 18  
Table 2: Clock Offsets  
PCI_9 19  
VDD_P 20  
RELATION  
PHASE  
MIN  
TYP  
MAX  
SEL133/100# 21  
VSS_48 22  
CK48_0 / SEL_A 23  
CK48_1 / SEL_B 24  
CK66 leads PCI  
0°  
1.5ns  
3.5ns  
Intel and Pentium are registered trademarks of Intel Corporation. Lexmark is a trademark of Lexmark International, Inc. Non-linear spread spectrum modulation profile is licensed under US Patent  
No. 5488627, Lexmark International, Inc. American Microsystems, Inc. reserves the right to change the detail specifications as may be required to permit improvements in the design of its products.  
9.18.00  
IntRGR  
ISO9001  

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