87946AYI-01 datasheet, PDF - EEWORLD Datasheet

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87946AYI-01: DescriptionLow Skew Clock Driver, 87946 Series, 10 True Output(s), 0 Inverted Output(s), PQFP32, 7 X 7 MM, 1.40 MM HEIGHT, MS-026, LQFP-32; Categorylogic logic; File Size232KB，15 Pages; ManufacturerIDT (Integrated Device Technology)

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87946AYI-01 Overview

Low Skew Clock Driver, 87946 Series, 10 True Output(s), 0 Inverted Output(s), PQFP32, 7 X 7 MM, 1.40 MM HEIGHT, MS-026, LQFP-32

87946AYI-01 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
Is Samacsys	N
series	87946
Input adjustment	DIFFERENTIAL
JESD-30 code	S-PQFP-G32
JESD-609 code	e0
length	7 mm
Logic integrated circuit type	LOW SKEW CLOCK DRIVER
Maximum Frequency@Nom-Sup	250000000 Hz
Humidity sensitivity level	3
Number of functions	1
Number of inverted outputs
Number of terminals	32
Actual output times	10
Maximum operating temperature	85 °C
Minimum operating temperature	-40 °C
Output characteristics	3-STATE
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
Maximum supply current (ICC)	55 mA
propagation delay (tpd)	3.8 ns
Certification status	Not Qualified
Same Edge Skew-Max（tskwd）	0.13 ns
Maximum seat height	1.6 mm
Maximum supply voltage (Vsup)	3.465 V
Minimum supply voltage (Vsup)	3.135 V
Nominal supply voltage (Vsup)	3.3 V
surface mount	YES
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
Base Number Matches	1

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1-to-10 Low Skew,

1, 2

LVCMOS/LVTTL

2.5V, 3.3V Fanout Buffer

87946I-01

Datasheet

PRODUCT DISCONTINUATION NOTICE - LAST TIME BUY EXPIRES MAY 6, 2017

General Description

The 87946I-01 is a low skew, ÷1, ÷2 Fanout Buffer. The 87946I-01

has one LVPECL clock input pair. The PCLK/nPCLK pair can accept

LVPECL, CML, or SSTL input levels. The low impedance

LVCMOS/LVTTL outputs are designed to drive 50 series or parallel

terminated transmission lines. The effective fanout can be increased

from 10 to 20 by utilizing the ability of the outputs to drive two series

terminated lines.

The divide select inputs, DIV_SELx, control the output frequency of

each bank. The outputs can be utilized in the ÷1, ÷2 or a combination

of ÷1 and ÷2 modes. The master reset input, MR/nOE, resets the

internal frequency dividers and also controls the active and high

impedance states of all outputs.

The 87946I-01 is characterized at 3.3V core/3.3V output and 3.3V

core/2.5V output. Guaranteed bank, output and part-to-part skew

characteristics make the 87946I-01 ideal for those clock distribution

applications demanding well defined performance and repeatability.

Features

•

Ten single ended LVCMOS/LVTTL outputs,

7 typical output impedance

LVPECL clock input pair

PCLK/nPCLK supports the following input levels:

LVPECL, CML, SSTL

Maximum input frequency: 250MHz

Output skew: 120ps (maximum)

Part-to-part skew: 700ps (maximum)

Multiple frequency skew: 320ps (maximum)

Additive phase jitter, RMS: 0.19ps (typical)

3.3V core, 3.3V or 2.5V output supply modes-40°C to 85°C

ambient operating temperature

Available in lead-free (RoHS 6) package

For functional replacement use 87946i-147

Pin Assignment

MR/nOE

GND

DDA

QA0

QA1

QA2

Block Diagram

PCLK

Pulldown

nPCLK

Pullup

÷1

÷2

DIV_SELA

Pulldown

DIV_SELB

Pulldown

DIV_SELC

Pulldown

MR/nOE

Pulldown

32 31 30 29 28 27 26 25

DDC

10 11 12 13 14 15 16

QC2

GND

QC0

QC1

DDC

QC3

GND

QB0

DDB

QB1

GND

QB2

DDB

DDC

QA0:QA2

PCLK

nPCLK

DIV_SELA

DIV_SELB

QB0:QB2

DIV_SELC

GND

QC0:QC3

87946I-01

32-Lead LQFP

7mm x 7mm x 1.45mm package body

Y Package

Top View

Revision C, September 20, 2016

87946AYI-01 Related Products

	87946AYI-01	87946AYI-01T
Description	Low Skew Clock Driver, 87946 Series, 10 True Output(s), 0 Inverted Output(s), PQFP32, 7 X 7 MM, 1.40 MM HEIGHT, MS-026, LQFP-32	Low Skew Clock Driver, 87946 Series, 10 True Output(s), 0 Inverted Output(s), 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
Is Samacsys	N	N
series	87946	87946
Input adjustment	DIFFERENTIAL	DIFFERENTIAL
JESD-30 code	S-PQFP-G32	S-PQFP-G32
JESD-609 code	e0	e0
length	7 mm	7 mm
Logic integrated circuit type	LOW SKEW CLOCK DRIVER	LOW SKEW CLOCK DRIVER
Maximum Frequency@Nom-Sup	250000000 Hz	250000000 Hz
Humidity sensitivity level	3	3
Number of functions	1	1
Number of terminals	32	32
Actual output times	10	10
Maximum operating temperature	85 °C	85 °C
Minimum operating temperature	-40 °C	-40 °C
Output characteristics	3-STATE	3-STATE
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
Maximum supply current (ICC)	55 mA	55 mA
propagation delay (tpd)	3.8 ns	3.8 ns
Certification status	Not Qualified	Not Qualified
Same Edge Skew-Max（tskwd）	0.13 ns	0.13 ns
Maximum seat height	1.6 mm	1.6 mm
Maximum supply voltage (Vsup)	3.465 V	3.465 V
Minimum supply voltage (Vsup)	3.135 V	3.135 V
Nominal supply voltage (Vsup)	3.3 V	3.3 V
surface mount	YES	YES
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
Base Number Matches	1	1

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