ASM2I99456G-32-ER 参数 Datasheet PDF下载

November 2006

rev 0.3

Table 1. Pin Configuration

Pin Number

3

4

5,6,7

32

8,11,15,20,24,27,31

25,29

18,22

9,13, 17

2

30,28,26

23,21,19

10,12,14,16

1

ASM2I99456

Pin

PECL_CLK,

PECL_CLK

FSELA, FSELB,

FSELC

MR/OE

GND

VCCA,

1

VCCB ,

VCCC

VCC

QA0 - QA2

QB0 - QB2

QC0 - QC3

NC

I/O

Input

Input

Input

Type

LVPECL

LVCMOS

LVCMOS

Supply

Supply

Supply

Function

Differential Clock reference

Low Voltage positive ECL input

Output bank divide select input

Internal reset and output tristate control

Negative Voltage supply output bank (GND)

Positive Voltage supply for output banks

Positive Voltage supply core (VCC)

Bank A Outputs

Bank B Outputs

Bank C Outputs

No Connect

Output

Output

Output

LVCMOS

LVCMOS

LVCMOS

Note:1 VCCB is internally connected to VCC.

Table 2. Supported Single and Dual Supply Configurations

Supply voltage

configuration

3.3V

Mixed voltage supply

2.5V

VCC

1

3.3V

3.3V

2.5V

VCCA

2

3.3V

3.3V or 2.5V

2.5V

VCCB

3

3.3V

3.3V

2.5V

VCCC

4

3.3V

3.3V or 2.5V

2.5V

GND

0V

0V

0V

Note: 1 VCC is the positive power supply of the device core and input circuitry. VCC voltage defines the input threshold and levels

2 VCCA is the positive power supply of the bank A outputs. VCCA voltage defines bank A output levels

3 VCCB is the positive power supply of the bank B outputs. VCCB voltage defines bank B output levels. VCCB is internally connected to VCC.

4 VCCC is the positive power supply of the bank C outputs. VCCC voltage defines bank C output levels

Table 3. Function Table (Controls)

Control

FSELA

FSELB

FSELC

MR/OE

Default

0

0

0

0

f

QA0:2

= f

REF

f

QB0:2

= f

REF

f

QC0:3

= f

REF

Outputs enabled

0

1

f

QA0:2

= f

REF

÷2

f

QB0:2

= f

REF

÷2

f

QC0:3

= f

REF

÷2

Internal reset

Outputs disabled (tristate)

Table 4. Absolute Maximum Ratings

1

Symbol

V

CC

V

IN

V

OUT

I

IN

I

OUT

T

S

Supply Voltage

DC Input Voltage

DC Output Voltage

DC Input Current

DC Output Current

Storage temperature

-40

Characteristics

Min

-0.3

-0.3

-0.3

Max

4.6

V

CC

+0.3

V

CC

+0.3

±20

±50

125

Unit

V

V

V

mA

mA

°C

Condition

Note: These are stress ratings only and are not implied for functional use. Exposure to absolute maximum ratings for prolonged periods of time may affect

device reliability.

3.3V/2.5V LVCMOS Clock Fanout Buffer

Notice: The information in this document is subject to change without notice.

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