87608AYIT datasheet, PDF - EEWORLD Datasheet

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87608AYIT: DescriptionProcessor Specific Clock Generator, 166.67MHz, PQFP32, 7 X 7 MM, 1.40 MM HEIGHT, MS-026, LQFP-32; CategoryThe embedded processor and controller Microcontrollers and processors; File Size159KB，15 Pages; ManufacturerIDT (Integrated Device Technology)

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87608AYIT Overview

Processor Specific Clock Generator, 166.67MHz, PQFP32, 7 X 7 MM, 1.40 MM HEIGHT, MS-026, LQFP-32

87608AYIT Parametric

Parameter Name	Attribute value
Is it lead-free?	Contains lead
Is it Rohs certified?	incompatible
Maker	IDT (Integrated Device Technology)
Parts packaging code	QFP
package instruction	7 X 7 MM, 1.40 MM HEIGHT, MS-026, LQFP-32
Contacts	32
Reach Compliance Code	not_compliant
ECCN code	EAR99
JESD-30 code	S-PQFP-G32
JESD-609 code	e0
length	7 mm
Humidity sensitivity level	3
Number of terminals	32
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Maximum output clock frequency	166.67 MHz
Package body material	PLASTIC/EPOXY
encapsulated code	LQFP
Encapsulate equivalent code	QFP32,.35SQ,32
Package shape	SQUARE
Package form	FLATPACK, LOW PROFILE
Peak Reflow Temperature (Celsius)	240
power supply	2.5/3.3,3.3 V
Master clock/crystal nominal frequency	41.67 MHz
Certification status	Not Qualified
Maximum seat height	1.6 mm
Maximum supply voltage	3.465 V
Minimum supply voltage	3.135 V
Nominal supply voltage	3.3 V
surface mount	YES
technology	CMOS
Temperature level	INDUSTRIAL
Terminal surface	Tin/Lead (Sn85Pb15)
Terminal form	GULL WING
Terminal pitch	0.8 mm
Terminal location	QUAD
Maximum time at peak reflow temperature	20
width	7 mm
uPs/uCs/peripheral integrated circuit type	CLOCK GENERATOR, PROCESSOR SPECIFIC
Base Number Matches	1

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Low Voltage/Low Skew, 1:8 PCI/PCI-X

Zero Delay clock Generator

Data Sheet

87608I

ENERAL

ESCRIPTION

The 87608I has a selectable REF_CLK or crystal input. The

REF_CLK input accepts LVCMOS or LVTTL input levels.

The 87608I has a fully integrated PLL along with frequency

conﬁgurable clock and feedback outputs for multiplying and

regenerating clocks with “zero delay”.

The 87608I is a 1:8 PCI/PCI-X Clock Generator. The 87608I

has a selectable REF_CLK or crystal input. The REF_CLK input

accepts LVCMOS or LVTTL input levels. The 87608I has a fully

integrated PLL along with frequency conﬁgurable clock and

feedback outputs for multiplying and regenerating clocks with

“zero delay”. The PLL’s VCO has an operating range of 250MHz-

500MHz, allowing this device to be used in a variety of general

purpose clocking applications. For PCI/PCI-X applications in

particular, the VCO frequency should be set to 400MHz. This

can be accomplished by supplying 33.33MHz, 25MHz, 20MHz,

or 16.66MHz on the reference clock or crystal input and by

selecting ÷12, ÷16, ÷20, or ÷24, respectively as the feedback

divide value. The dividers on each of the two output banks can

then be independently conﬁgured to generate 33.33MHz (÷12),

66.66MHz (÷6), 100MHz (÷4), or 133.33MHz (÷3).

The 87608I is characterized to operate with its core supply

at 3.3V and each bank supply at 3.3V or 2.5V. The 87608I is

packaged in a small 7x7mm body LQFP, making it ideal for use

in space-constrained applications.

EATURES

•

Fully integrated PLL

•

Eight LVCMOS/LVTTL outputs, 15Ω typical output impedance

•

Selectable crystal oscillator interface or

LVCMOS/LVTTL REF_IN clock input

•

Maximum output frequency: 166.67MHz

•

Maximum crystal input frequency: 38MHz

•

Maximum REF_IN input frequency: 41.67MHz

•

Individual banks with selectable output dividers for

generating 33.333MHz, 66.66MHz, 100MHz and

133.333MHz

•

Separate feedback control for generating PCI / PCI-X

frequencies from a 16.66MHz or 20MHz crystal, or 25MHz

or 33.33MHz reference frequency

•

VCO range: 200MHz to 500MHz

•

Cycle-to-cycle jitter: 120ps (maximum), @ 3.3V

•

Period jitter, RMS: 20ps (maximum)

•

Output skew: 250ps (maximum)

•

Bank skew: 60ps (maximum)

•

Static phase offset: 160ps ± 160ps

•

Voltage Supply Modes:

(core/inputs), V

DDA

(analog supply for PLL),

DDOA

(output bank A),

DDOB

(output bank B, REF_OUT, FB_OUT)

DDA

DDOA

DDOB

3.3/3.3/3.3/3.3

3.3/3.3/2.5/3.3

3.3/3.3/3.3/2.5

3.3/3.3/2.5/2.5

•

-40°C to 85°C ambient operating temperature

DDOB

SSIGNMENT

XTAL_SEL

PLL_SEL

REF_IN

DDOA

XTAL2

XTAL1

DDA

•

Available in lead-free RoHS compliant package

32 31 30 29 28 27 26 25

QA0

QA1

GND

QA2

QA3

DDOA

DIV_SELA0

9 10 11 12 13 14 15 16

DIV_SELA1

DIV_SELB0

DIV_SELB1

FBDIV_SEL0

FBDIV_SEL1

FB_IN

GND

QB0

QB1

GND

QB2

QB3

DDOB

REF_OUT

FB_OUT

ICS87608I

32-Lead LQFP

7mm x 7mm x 1.4mm

package body

Y package

Top View

Revision C January 25, 2016

87608AYIT Related Products

	87608AYIT	87608AYI
Description	Processor Specific Clock Generator, 166.67MHz, PQFP32, 7 X 7 MM, 1.40 MM HEIGHT, MS-026, LQFP-32	Processor Specific Clock Generator, 166.67MHz, PQFP32, 7 X 7 MM, 1.40 MM HEIGHT, MS-026, LQFP-32
Is it lead-free?	Contains lead	Contains lead
Is it Rohs certified?	incompatible	incompatible
Maker	IDT (Integrated Device Technology)	IDT (Integrated Device Technology)
Parts packaging code	QFP	QFP
package instruction	7 X 7 MM, 1.40 MM HEIGHT, MS-026, LQFP-32	7 X 7 MM, 1.40 MM HEIGHT, MS-026, LQFP-32
Contacts	32	32
Reach Compliance Code	not_compliant	not_compliant
ECCN code	EAR99	EAR99
JESD-30 code	S-PQFP-G32	S-PQFP-G32
JESD-609 code	e0	e0
length	7 mm	7 mm
Humidity sensitivity level	3	3
Number of terminals	32	32
Maximum operating temperature	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C
Maximum output clock frequency	166.67 MHz	166.67 MHz
Package body material	PLASTIC/EPOXY	PLASTIC/EPOXY
encapsulated code	LQFP	LQFP
Encapsulate equivalent code	QFP32,.35SQ,32	QFP32,.35SQ,32
Package shape	SQUARE	SQUARE
Package form	FLATPACK, LOW PROFILE	FLATPACK, LOW PROFILE
Peak Reflow Temperature (Celsius)	240	240
power supply	2.5/3.3,3.3 V	2.5/3.3,3.3 V
Master clock/crystal nominal frequency	41.67 MHz	41.67 MHz
Certification status	Not Qualified	Not Qualified
Maximum seat height	1.6 mm	1.6 mm
Maximum supply voltage	3.465 V	3.465 V
Minimum supply voltage	3.135 V	3.135 V
Nominal supply voltage	3.3 V	3.3 V
surface mount	YES	YES
technology	CMOS	CMOS
Temperature level	INDUSTRIAL	INDUSTRIAL
Terminal surface	Tin/Lead (Sn85Pb15)	Tin/Lead (Sn85Pb15)
Terminal form	GULL WING	GULL WING
Terminal pitch	0.8 mm	0.8 mm
Terminal location	QUAD	QUAD
Maximum time at peak reflow temperature	20	20
width	7 mm	7 mm
uPs/uCs/peripheral integrated circuit type	CLOCK GENERATOR, PROCESSOR SPECIFIC	CLOCK GENERATOR, PROCESSOR SPECIFIC
Base Number Matches	1	1

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