LC72348G View Datasheet(PDF) - SANYO -> Panasonic

Part Name

Description

Manufacturer

LC72348G

Low-Voltage ETR Controller with On-Chip LCD Driver

SANYO -> Panasonic 

Block Diagram

LC72348G/W, 72349G/W

XIN

XOUT

FMIN

AMIN

VDD

VSS

RES

TEST1

TEST2

PA0

PA1

PA2

PA3

PB0

PB1

PB2

PB3

PC0

PC1

PC2

PC3

INT/PD0

PD1

PD2

PD3

AIN

AOUT

AGND

DIVIDER

SYSTEM CLOCK

GENERATOR

1/2 1/16,1/17

REFERENCE DIVIDER

PROGRAMMBLE DIVIDER

PHASE

DETECTOR

EO

75kHz

TU

FM LOCAL 1/256

1/2

AM LOCAL 1/2

VSENSE

*

P-ON

RESET

BUS

DRIVER

* DATA

LATCH

/

BUS

DRIVER

DATA

LATCH

/

BUS

DRIVER

DATA

LATCH

/

BUS

DRIVER

PLL DATA LATCH

PLL CONTROL

LCDA/B

S1

TIME BASE COUNT

CONTROL END

4

SEG

LA

7

LCPA/B

LCD

80 PORT

DRIVER

RAM

ADDRESS

192 × 4bits(LC72348) DECODER

256 × 4bits(LC72349)

BANK

ROM

3k × 16bits

(LC72348)

4k × 16bits

(LC72349)

BUS

CONTROL

INSTRUCTION

DECODER

ADDRESS DECODER

SKIP

14

ADDRESS COUNTER

14

JMP

CAL

RETURN

INTERRUPT

RESET

STACK

BANK CF

LATCH

A

ALU

LATCH

B

TIMER 0

JUDGE

ADC

(5bits)

DATA BUS

DATA

LATCH

/

BUS

DRIVER

DATA

LATCH

/

BUS

DRIVER

DOUBLER

CIRCUIT

COMMON

DRIVER

BEEP TONE

DATA

LATCH

MPX

/

BUS

DRIVER

MPX

DATA

LATCH

/

BUS

DRIVER

S12

S13/PH0

S14/PH1

S15/PH2

S16/PH3

S17/PG0

S18/PG1

S19/PG2

S20/PG3

DBR1

DBR2

DBR3

DBR4

COM4

COM3

COM2

COM1

PE0/BEEP

PE1

PF0/ADI0

PF1/ADI1

PF2/ADI3

No. 6472-6/14

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