ICS9LPRS477C datasheet(1/25 Pages) RENESAS

부품명	ICS9LPRS477C

상세설명	Programmable System Clock Chip for ATI RD790 - K8TM Based Systems

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9LPRS477C

IDT®

Programmable System Clock Chip for ATI RD790-K8TM Based Systems

1393—01/28/14

Programmable System Clock Chip for ATI RD790 - K8TM

Based Systems

1

DATASHEET

Pin Configuration

Recommended Application:

ATI RS780/RS790/RD790/RS880 systems using AMD

K8 processors

Output Features:

•

2 - Greyhound compatible K8 CPU pair

•

6 - low-power differential SRC pairs

•

2 - low-power differential SouthBridge SRC pairs

•

4 - low-power differential ATIG pairs

•

1 - Selectable low-power differential 100MHz non-

spread SATA/ SRC output

•

1 - Selectable 100MHz low-power differential/ 66 MHz

single-ended HTT clock

•

2 - 48MHz USB clock

•

3 - 14.318MHz Reference clock

Key Specifications:

•

CPU outputs cycle-to-cycle jitter < 85ps

•

SRC outputs cycle-to-cycle jitter < 125ps

•

ATIG outputs cycle-to-cycle jitter < 125ps

•

+/- 300ppm frequency accuracy on CPU, SRC & ATIG

clocks

Features/Benefits:

•

CPU, ATIG, SB_SRC and SRC outputs are

independently programmable for frequency

•

Spread Spectrum for EMI reduction

•

Outputs may be disabled via SMBus

•

External crystal load capacitors for maximum

frequency accuracy

•

Meets PCIEX Gen2 specifications

64 63 62 61 60 59 58 57 56 55 54 53 52 51 50 49

**SEL_DOC/48MHz_1 1

48 VDDCPU

**SEL_CPU1#/48MHz_0 2

47 GNDCPU

GND48 3

46 CPUKG1T_LPRS/SRC7T_LPRS

SMBCLK 4

45 CPUKG1C_LPRS/SRC7C_LPRS

SMBDAT 5

44 VDDA

**DOC_0/SRC5C_LPRS 6

43 GNDA

**DOC_1/SRC5T_LPRS 7

42 GNDSATA

SRC4C_LPRS 8

41 SRC6T/SATAT_LPRS

SRC4T_LPRS 9

40 SRC6C/SATAC_LPRS

GNDSRC 10

39 VDDSATA

VDDSRC 11

38 ATIG0T_LPRS

SRC3C_LPRS 12

37 ATIG0C_LPRS

SRC3T_LPRS 13

36 ATIG1T_LPRS

SRC2C_LPRS 14

35 ATIG1C_LPRS

SRC2T_LPRS 15

34 VDDATIG

VDDSRC 16

33 GNDATIG

17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

** Internal Pull-Down Resistor

ICS9LPRS477C

64-Pin VFQFPN

* Internal Pull-Up Resistor

유사한 부품 번호 - ICS9LPRS477C

제조업체	부품명	데이터시트	상세설명
Renesas Technology Corp	ICS9LPRS477D	548Kb / 27P	PROGRAMMABLE SYSTEM CLOCK CHIP FOR ATI RD790-K8TM BASED SYSTEMS REV C 010715

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