PI90LVB16 Просмотр технического описания (PDF) - Pericom Semiconductor

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PI90LVB16

3V Bus LVDS 1-to-6 Clock Buffer/Bus Transceiver

Pericom Semiconductor 

PI90LVB16

3V Bus LVDS 1-to-6

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Connection Diagram

GND

1

OE

2

NC

3

VCCA

4

GNDA

5

CLKI/0+

6

CLKI/0–

7

GNDA

8

CrdCLKIN

9

NC 10

DE 11

GND 12

24-Pin

L

24

VCC

23

CLKOUT0

22 GND

21

CLKOUT1

20

VCC

19

CLKOUT2

18 GND

17

CLKOUT3

16

VCC

15

CLKOUT4

14 GND

13

CLKOUT5

TSSOP Package Pin Description

Pin Name

Pin #

Type

Description

CLKI/O+

6

I/O True (Positive) side of the differential clock input.

CLKI/O–

7

I/O Complementary (Negative) side of the differential clock input.

OE

2

I OE; this pin is active Low. When High, this pin forces all CLKOUT pin High. When Low,

CLKOUT pins logic state is determined by either the CrdCLKIN or VID at the CLKI/O

pins with respect to the logic level at the DE pin. This pin has a weak pullup device to

VCC. If OE is floating, then all CLKOUT pins will be High.

DE

11

I DE; this pin is active Low. When Low, this pin enables the CardCLKIN signal to the

CLKI/O pins and CLKOUT. When High the Driver is 3-State, the CLKI/O pins are

inputs and determine the state of the CLKOUT pins. This pin has a weak pullup device to

VCC. If DE is floating, then all CLKI/O pins are 3-State.

CLKOUT 13,15,17,19,21,23 O Six Buffered clock (CMOS) outputs.

CrdCLKIN

VCC

GND

9

16,20,24

1,12,14,18,22

I Input clock from Card (CMOS level or TTL level).

Power VCC; Analog VCCA (Internally separate from VCC, connect externally or use separate

power supplies). No special power sequencing required. Either VCCA or VCC can be

applied first, or simultaneously apply both power supplies.

Ground GND

VCCA

GNDA

NC

4

Power Analog VCCA (Internally separate from VCC, connect externally or use separate power

supplies). No special power sequencing required. Either VCCA or VCC can be applied

first, or simultaneously apply both power supplies.

5,8

Ground Analog Ground (Internally separate from Ground must be connected externally.

3,10

No Connects.

2

PS8536A 05/21/01

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