M66238FP datasheet(2/15 Pages) RENESAS

2 / 15 page

M66238FP

REJ03F0268-0200 Rev.2.00 Mar 18, 2008

Page 2 of 14

Pin Arrangement

(Top view)

M66238FP

Outline: 32P2W-A

Digital GND pin

DGND

AGND

DGND

AGND

CPIN

CPOUT

DOWN

AVCC

DVCC

DGND

DVCC

TCKI

TCKO

CKOB

VCCO

GNDO

PULSE

CKO/PLLO

SIN

SCLK

XOUT

XIN

RESET

Reset input

Chip select input

Serial data input

Serial clock input

Digital power

supply pin

Analog GND pin

VCO load output

Filter connect pin

Test pin

Trigger input

Filter connect pin

Analog GND pin

Digital GND pin

Analog power

supply pin

Analog power

supply pin

Digital power

supply pin

Digital power

supply pin

Sync output power

supply pin

Sync output GND pin

One-shot pulse output

Clock output

Clock input

Test pin

PLL output

Clock output

Digital GND pin

Pin Description

Pin Name

Name

I/O

Function

RESET

Reset input

Input

Initialize M66238 internal status.

Chip select input

Input

Transfer serial data when

CS = "L".

SIN

Serial data input

Input

Synchronize 32-bit serial data from MCU with SCK, and

enter.

SCLK

Serial clock input

Input

Enter a sync clock for writing 32-bit serial data.

XIN

Clock input

Input

XOUT

Clock output

Output

Used by connecting crystal oscillator between XIN and

XOUT. When using an external clock signal, connect the

clock oscillator to XIN pin and open XOUT pin.

Trigger input

Input

Trigger input for clock sync.

CKOB

Clock output

Output

Output an inverted CKO signal.

CKO/PLLO

PLL output

Output

CKO outputs a clock synchronized with a trigger signal

and PLLO outputs a PLL oscillator clock as it is.

PULSE

One-shot pulse output

Output

Output a one-shot pulse synchronized with a CKO signal.

CPOUT

Filter connect pin

Output

Connect a low pass filter to charge pump output.

CPIN

Filter connect pin

Input

Low pass filter input pin.

VCO load output

Output

Connect a load resistor for VCO circuit operation

between RV and GND.

TCKI

Test pin

Input

Shipping test pin. Connect to GND when use.

TCKO

Test pin

Output

Shipping test pin. Keep open when use.

Test pin

Output

Shipping test pin. Keep open when use.

DOWN

Test pin

Output

Shipping test pin. Keep open when use.

DVCC

Digital power supply pin

—

Digital power supply pin.

DGND

Digital GND pin

—

Digital GND pin.

VCCO

Sync output power supply pin

—

Power supply pin for sync output.

GNDO

Sync output GND pin

—

GND pin for sync output.

AVCC

Analog power supply pin

—

Analog power supply pin.

AGND

Analog GND pin

—

Analog GND pin.

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