HD151TS207SS datasheet(4/38 Pages) RENESAS

4 / 38 page

HD151TS207SS

Rev.1.00, Apr.25.2003, page 4 of 38

Pin Descriptions

Pin name

No.

Type

Description

VSS_A

Ground for PLL

VSS_CPU

Ground for outputs

VSS_IREF

Ground for current reference

VSS_SRC

VSS_3V66

VSS_PCI

11, 17

VSS_REF

VSS_48

Ground

Ground for outputs

VDD_A

3.3 V Power Supply for PLL

VDD_CPU

42, 48

VDD_SRC

VDD_3V66

VDD_PCI

10, 16

VDD_REF

VDD_48

Power

3.3 V Power Supply for outputs

REF0

REF1

OUTPUT

3.3 V 14.318 MHz reference clock.

XTAL_IN

INPUT

14.318 MHz XTAL input.

XTAL_OUT

OUTPUT

14.318 MHz XTAL output.

Don’t connect when an external clock is applied at XTAL_IN.

FS2/PCIF_[0:1]

7,8

INPUT/

OUTPUT

Frequency select latch input pin.

/Free running PCI clock 3.3 V output.

PCIF_2

OUTPUT

Free running PCI clock 3.3 V output.

**MODE/PCI_0

INPUT/

OUTPUT

Function select latch input pin for pin 22,

1 = Reset#, 0 = clock output.

/PCI clock 3.3 V output.

PCI_[1:3]

13,14,

OUTPUT

PCI clock 3.3 V outputs.

**SEL100_200/

PCI_4

INPUT/

OUTPUT

Latched select input for SRC output.

1 = 200 MHz, 0 = 100 MHz

/PCI clock 3.3 V output.

**SEL33_25/PCI_5

INPUT/

OUTPUT

Latched select input for PCI5 output.

1 = 25 MHz, 0 = 33 MHz

/PCI clock 3.3 V output.

PCI_6

OUTPUT

PCI clock 3.3 V outputs.

Note:

(*):

Those pins are 150 k

Ω internal pulled-UP.

(**):

Those pins are 150 k

Ω internal pulled-DOWN.

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