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MK1493-02A 데이터시트 PDF




Integrated Circuit System에서 제조한 전자 부품 MK1493-02A은 전자 산업 및 응용 분야에서
광범위하게 사용되는 반도체 소자입니다.


 

PDF 형식의 MK1493-02A 자료 제공

부품번호 MK1493-02A 기능
기능 Networking/pci Clock Generator
제조업체 Integrated Circuit System
로고 Integrated Circuit System 로고


MK1493-02A 데이터시트 를 다운로드하여 반도체의 전기적 특성과 매개변수에 대해 알아보세요.



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MK1493-02A 데이터시트, 핀배열, 회로
MK1493-02A
Networking/PCI Clock Generator
Description
The MK1493-02A is a general purpose clock generator
that provides an integrated clocking solution for
PCI/Networking applications. It provides two pairs of
differential CPU clocks, four PCI clocks, seven PCI_X
clocks, two reference clocks, additional clock selectable
from REF/50 MHz, and six pairs of SSTL2 DDR at
2.5 V. All complementary outputs operate only from
a 2.5 V power supply.
Input/Output Features
Packaged in 56-pin TSSOP package
2 - Pairs of differential CPU clocks (differential
current mode)
4 - PCI @ 3.3 V
7 - PCI_X @ 3.3 V
2 - REF @ 3.3 V, Fixed
6 - Pairs of differential SSTL2 DDR @ 2.5 V
1 - REF/50 MHz, selectable
Spread spectrum for EMI control
Supports SMBUS index read/write and blocks
read/write operations
Uses external 25 or 50 MHz crystal or clock
CPU output jitter <125 ps
PCI cycle to cycle output jitter <250 ps
DDR cycle to cycle output jitter <150 ps
Block Diagram
PLL2
50MHz/REF2
X1
External capacitor
required with crystal for
accurate timing of clock
XTAL
OSC
2 REF(0:1)
X2
PLL1
Spread
Spectrum
ww OE
w FREQSEL
FS (3:0)
.D SDATA
SCLK
a CLK_STOPB
ta PCI_STOPB
S SSEN
4
Control
Logic
Config.
Reg.
CPU
Divider
PCI
Divider
Stop
Stop
Delay
Delay
AGP
Divider
DDR
Divider
Stop
Stop
Delay
Delay
2
2
CPUCLKT (1:0)
CPUCLKC (1:0)
7 PCI_XCLK (6:0)
4 PCI (3:0)
6
6
DDRT (5:0)
DDRC (5:0)
IREF
heet4UMDS 1493-02A C
1
Revision 020204
.comIntegrated Circuit Systems, Inc. 525 Race Street, San Jose, CA 95126 tel (408) 297-1201 www.icst.com




MK1493-02A pdf, 반도체, 판매, 대치품
MK1493-02A
Networking/PCI Clock Generator
Pin Pin Pin
Name
Type
Pin Description
37
DDRT3
Output True clock output of DDRT3.
38
DDRC2
Output Complementary clock output of DDRT2.
39
DDRT2
Output True clock output of DDRT2.
40
VDDDR1
Power Power supply for DDR clocks 2.5 V only for complementary outputs.
(Can use 3.3 V supply for single ended outputs)
41
VSSDR1
Power Ground for DDR clocks.
42
DDRC1
Output Complementary clock output of DDRT1.
43
DDRT1
Output True clock output of DDRT1.
44
DDRC0
Output Complementary clock output of DDRT0.
45
DDRT0
Output True clock output of DDRT0.
46
VDDDR0
Power Power supply for DDR clocks 2.5 V only for complementary outputs).
(Can use 3.3 V supply for single ended outputs)
47
VSSDR0
Power Ground for DDR clocks.
48
CPUC1
Output Complementary CPU clock output.
49
CPUT1
Output True CPU clock output.
50
VDDCPU
Power Power supply for CPU Clocks 3.3 V.
51
VSSCPU
Power Ground for CPU clocks.
52
CPUC0
Output Complementary CPU clock output.
53
CPUT0
Output True CPU clock output.
54 OE Input Enables all outputs when high, tri-state outputs when low. Pull-up.
55
IREF
Output A precision resistor connected to ground establishes the external reference current.
56
VSSAND
Power Analog and digital ground power supply.
MDS 1493-02A C
4
Revision 020204
Integrated Circuit Systems, Inc. 525 Race Street, San Jose, CA 95126 tel (408) 297-1201 www.icst.com

4페이지










MK1493-02A 전자부품, 판매, 대치품
Byte 1: Output Enable Register
(1 = enable, 0 = tristate)
Bit Pin # PUP
Bit7 -
X
Bit6 49, 48
1
Bit5 53, 52
1
Bit4 25
X
Bit3 24
X
Bit2 23
X
Bit1 22
X
Bit0 21
X
RESERVED
CPUT/C1
CPUT/C0
SSEN Read back
FS3 Read back
FS2 Read back
FS1 Read back
FS0 Read back
Byte 2: Output Enable Register
(1 = enable, 0 = tristate)
Bit Pin # PUP
Bit7 -
X
Bit6 27
1
Bit5 26
1
Bit4 25
1
Bit3 24
1
Bit2 23
1
Bit1 22
1
Bit0 21
1
RESERVED
PCI_X6
PCI_X5
PCI_X4
PCI_X3
PCI_X2
PCI_X1
PCI_X0
Byte 3: Output Enable Register
(1 = enable, 0 = tristate)
Bit Pin # PUP
Bit7 42, 43, 44, 45
1
Bit6 36, 37, 38, 39
1
Bit5 30, 31, 32, 33
1
Bit4 -
-
Bit3 16
1
Bit2 15
1
Bit1 14
1
Bit0 13
1
DDRT/C (0:1)
DDRT/C (2:3)
DDRT/C (4:5)
RESERVED
PCI3
PCI2
PCI1
PCI0
MK1493-02A
Networking/PCI Clock Generator
Description
Description
Description
MDS 1493-02A C
7
Revision 020204
Integrated Circuit Systems, Inc. 525 Race Street, San Jose, CA 95126 tel (408) 297-1201 www.icst.com

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부품번호상세설명 및 기능제조사
MK1493-02A

Networking/pci Clock Generator

Integrated Circuit System
Integrated Circuit System

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