PI6C487016FBE Pericom Semiconductor, PI6C487016FBE Datasheet

PI6C487016FBE

Manufacturer Part Number

PI6C487016FBE

Description

Clock Drivers & Distribution 1to16 LVCMOS/LVTTL Clock Drive

Manufacturer

Pericom Semiconductor

Type

Clock Dividerr

Datasheet

1.PI6C487016FBE.pdf (8 pages)

Specifications of PI6C487016FBE

Number Of Clock Inputs

Output Logic Level

LVCMOS/LVTTL

Output Frequency

250MHz

Operating Supply Voltage (min)

3.135V

Operating Supply Voltage (typ)

3.3V

Operating Supply Voltage (max)

3.465V

Package Type

LQFP

Operating Temp Range

-40C to 85C

Operating Temperature Classification

Industrial

Mounting

Surface Mount

Pin Count

Max Output Freq

250 MHz

Minimum Operating Temperature

- 40 C

Mounting Style

SMD/SMT

Supply Voltage (max)

3.465 V

Supply Voltage (min)

3.135 V

Maximum Operating Temperature

+ 85 C

Package / Case

LQFP-48

Lead Free Status / RoHS Status

Compliant

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Product Features

• 16 LVCMOS/LVTTL outputs (4 banks of 4 outputs)

• Selectable differential or single-ended clock inputs

• CLK1, nCLK1 pair can accept the following differential input

• CLK0 supports the following input types: LVCMOS, LVTTL

• Maximum output frequency: 250MHz

• Independent bank control for ÷1 or ÷2 operation

• Independent output bank voltage settings for 3.3V, 2.5V, or

• Output skew: 170ps (max)

• Bank skew: 30ps (max)

• Part-to-part skew: 750ps (max)

• 3.3V core, 3.3V, 2.5V, or 1.8V output operating supply

• -40° to +85°C ambient operating temperature

• Available packages:

Block Diagram

levels: LVPECL, LVDS, LVHSTL, SSTL, HCSL

1.8V operations

-Pb-free & green 48-pin LQFP(FB)

CLK_SEL

nMR/OE

nCLK1

SELC

SELD

CLK0

CLK1

SELA

SELB

ENA

ENB

ENC

END

10-0008

÷1

÷2

QA0:QA3

QB0:QB3

QC0:QC3

QD0:QD3

Product Description

The PI6C487016 is a low skew. 1:16 LVCMOS/LVTTL Clock

Driver. The device has 4 banks of 4 outputs and each bank can be

independently selected for ÷1 or ÷2 frequency operation. Each bank

also has its own power supply pins so that the banks can operate

at the following different voltage levels: 3.3V, 2.5V, and 1.8V. The

low impedance LVCMOS/LVTTL outputs are designed to drive

50Ω series or parallel terminated transmission lines.

The divide select inputs, SELA: SELD, control the output frequency

of each bank with either ÷1 or ÷2 frequency operation. The bank

enable inputs, ENA: END, support enabling and disabling each bank

of outputs individually. The outputs synchronized when enabling

or disabling the clock outputs. The master reset input nMR/OE,

resets the ÷1/÷2 ﬂ ip ﬂ ops and also controls the active and high

impedance states of all outputs.

The PI6C487016 is characterized to operate with the core at 3.3V

and the output banks at 3.3V, 2.5V or 1.8V.

Pin Description

nMR/OE

SELC

SELD

CLK0

SELA

SELB

GND

ENC

END

ENA

ENB

LVCMOS / LVTTL Clock Driver

48 47 46 45 44 43 42 41 40 39 38 37

13 14 15 16 17 18 19 20 21 22 23 24

Low Skew, 1-to-16

PI6C487016

PS8741D

GND

QB0

QB1

GND

QB2

QB3

GND

QC0

QC1

DDOB

DDOC

01/12/10

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PI6C487016FBE Summary of contents

Page 1

Product Features • 16 LVCMOS/LVTTL outputs (4 banks of 4 outputs) • Selectable differential or single-ended clock inputs • CLK1, nCLK1 pair can accept the following differential input levels: LVPECL, LVDS, LVHSTL, SSTL, HCSL • CLK0 supports the following input ...

Page 2

Pin Descriptions Number Name Type Power DD 2 CLK0 Input SELA : Input SELD ENA : END Input 11 nMR/OE Input 12, 16, 20, 24, 28, 32, 36, 40, ...

Page 3

Absolute Maximum Ratings Supply Voltage, VDD ....................... 4.6V Inputs ...................................................... Outputs .................................................. Package Thermal Impedance, Ø JA ..... Storage Temperature, T STG ................... Pin Characteristics Symbol Parameter C Input Capacitance IN R Input Pulldown Resistor PULLDOWN ...

Page 4

LVCMOS/LVTTL DC Characteristics, Symbol Parameter SELx, ENX, nMR/OE, CLK_SEL V Input High Voltage IH CLK0 SELx, ENx, nMR/OE, CLK_SEL V Input Low Voltage IL CLK0 ENx, SELx, nMR/OE I Input High Current IH CLK0, CLK_SEL ENx, SELx, nMR/OE I Input ...

Page 5

V AC Characteristics, DD Symbol Parameter f Output Frequency MAX CLK0 CLK1, nCLK1 CLK0 Propagation Delay Low to High CLK1, nCLK1 CLK0 CLK1, nCLK1 (3) tsk(b) Bank skew (4) tsk(o) Output skew (5) tsk(pp) ...

Page 6

Parameter Measurement Information 1.65V± DDOx LVCMOS GND -1.65V±5% 3.3V Core/3.3V Output Load AC Test Circuit 2.4±0.9V +0.9V± DDOx LVCMOS GND = -0.9V±5% 3.3V Core/1.8V Output Load AC Test Circuit 10-0008 2.05V±5% SCOPE V ...

Page 7

Application Information Wiring the differential input to accept single ended levels Figure 1 shows how the differential input can be wired to accept single ended levels. The reference voltage V_REF = VDD/2 is generated by the bias resistors R1, R2 ...

Page 8

... Note: • For latest package info, please check: http://www.pericom.com/products/packaging/mechanicals.php Ordering Information Ordering Code PI6C487016FBE Notes: • Thermal characteristics can be found on the company web site at www.pericom.com/packaging/ • Pb-free and Green • Adding an X sufﬁ Tape/Reel Pericom Semiconductor Corporation • 1-800-435-2336 • http://www.pericom.com ...

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