LC72711W, 72711LW

No.6167-7/26

Continued from preceding page.

Pin No.

Pin

Function

I/O

Pin circuit

Data bus

17 to 24

D0 to D7

The bus width can be set to be either 8 bits or 16bits by the BUSWD

I/O

pin (pin 48).

For data input, only the lower 8 bits (D0 to D7) are valid.

25 to 32

D8 to D15

Data bus (in 16-bit mode)

Output

These pins are held in the output off state when BUSWD is low.

64

XIN

Connections for the system clock crystal oscillator circuit.

I/O

1

XOUT

The XIN pin can also be used as an external clock signal input.

53

MPXIN

Baseband (multiplex) signal input

Input

55

FLOUT

Subcarrier output (76kHz bandpass filter output)

Output

56

CIN

Subcarrier input (comparator input)

Input

52

VREF

Reference voltage output (Vdda/2)

Output

36

DO

CCB serial interface data output

Output

37

50

NC

This pin must be left open

57

54

VDDA

Analog system power supply

-

51

VSSA

Analog system ground

-

2, 15, 34

VDDD

Digital system power supply (+2.7V to +5.5V)

-

14, 35, 63

VSSD

Digital system ground

-

Notes: 1. This pin must be connected to VDDD or VSSD if the IC is used in serial interface mode (when SP is high).

2. A capacitor of at least 2000pF must be inserted between VDDD and VSSD.

Control Registers

This IC includes both registers that can be read and registers that can be written. These registers can be accessed using

either the serial interface (CCB) or the parallel interface. The SP pin switches between these interfaces.

The initial values of the write registers are the data loaded into internal registers when a reset signal (RST) is received.

These values are recommended values that do not need to be changed during normal operation.

If the parallel interface is used, applications must hold the address fixed at 00H when reading out data to which error

correction has been applied. If the CCB interface is used, the application needs only to specify the CCB address (#FB).

The address 00H is an invalid address for writing.

The addresses other than those specified below are control addresses particular to the IC. Applications must not specify

those addresses.

Continued on next page.

--

+

Vref

--

+

Vssa

Vdda