SN6B000

Hi-Density LCD Driver with 8-bit Controller

December 20, 2000

GENERAL DESCRIPTIONS

SN6B000 is a 8-bit micro controller series with hi-density LCD driver. Combined
with one or more SN6BS00 (64-segment drivers), SN6B000 can form one 1024/
2048/ 4096/ 6144/ 8192 dots LCD system. A dual-tone melody and a voice
synthesizer are included in SN6B000. Also, a 7-bit current-type DAC and the
PWM circuit are built in SN6B000, so that makes users easily choose a speaker
(DA), or a buzzer (PWM) for their applications. SN6B000 only contains 32 COM
signals of LCD. All segment signals are provided by SN6BS00. Several
different types of LCD applications can be implemented by suitably combining
SN6B000 and SN6BS00. SN6B000 not only contains internal mask ROM itself
(128K words, MC mode), but also possesses the interface to access external
ROM (maximum 512K words, MP mode). A memory chip, SN6B400 consists of
256K-word mask ROM and is available to work with SN6B000 to accomplish the
whole micro-processor system.

Dots

Configuration

COM

SEG

1024 1 SN6B000 + l SN6BS00

2048 1 SN6B000 + l SN6BS00

4096 1 SN6B000 + 2 SN6BS00

128

6144 1 SN6B000 + 3 SN6BS00

192

8192 1 SN6B000 + 4 SN6BS00

256

SN6B000

Hi-Density LCD Driver with 8-bit Controller

December 20, 2000

FEATURES

ROM space: 512K words (=2

*16=2

*8); Program Space: 256K*16

MC mode:128K words in SN6B000

MP mode: along with SN6B400 to 256K words

RAM

Size:

256 bytes in SN6B000

4*256 bytes in SN6BS00 (2*256 bytes LCD RAM, 2*256 bytes normal
RAM)

I/O Port : There are Port0 and Port1 (total 16 pins I/O)

All ports are I/O-type and P0.7 can be modulated with a carry signal

Each port can be set as "H", "L", floating, and high-resistance "H"
(150K@5V )

Every port can wake up chip when chip is in power-down mode

instructions

8 levels stack buffer supports interrupt and call subroutine
System

Clock:

2MHz RC oscillator

2M/ 4M(3.58M) crystal

Low speed clock: Register option, 32768 crystal or RC
Three different operation modes can be selected:

Normal mode (both High/Low osc. On).

Slow mode

(High osc. Off, Low osc. On).

Stop mode

(both High and Low osc. Off).

LCD: 1/16 duty (for 1024) or 1/32 duty, frame rate=64 or 128 Hz.
A voltage regulator and double voltage circuit is included in SN6BS000
8 interrupt sources :

5 internal interrupts: T0, TC0, TC1, TW, SPEECH (non-maskable).

3 external interrupts: INTP0.0 ~ INTP0.2

ISR entry location: Reset: 0000, SPEECH: 0018h, and the others: 0008h

Voice:

Built-in voice synthesizer

Sampling rate from 4K to 40Khz

Dual tone melody with 4 octaves

7-bit DA converter (maximum 3mA)

PWM output for Buzzer

SN6B000

Hi-Density LCD Driver with 8-bit Controller

December 20, 2000

PIN ASSIGNMENT

SN6B000

Pin Name

I/O

Descriptions

Internal

Pull-low

C0~C31

O Common 0 ~ 31

VLC1, VLC4,
VLC5

LCD Bias

VLCDR

LCD Bias

P/C

Micro-processor/Micro-controller

A0~A19

O Address Bus for ROM

D0~D7

I/O Data Bus for ROM

CE1B

O Chip Enable of External ROM.

VO/ BUZ1

O Voice out, 7-bit DA / PWM output

BUZ2

O PWM output

OSC/XIN

High speed Clock input:
CKSEL=L, RC oscillator
CKSEL=H, Crystal

XOUT

O High Speed clock output

CKSEL

High speed clock selection
( 0:2M RC oscillator, 1: Crystal)

LXIN

Low speed clock input

LXOUT

O Low speed clock output

P0, P1

I/O I/O Ports

XCE_0

O Chip Enable of SN6BS00 0

XCE_1

O Chip Enable of SN6BS00 1

XCE_2

O Chip Enable of SN6BS00 2

XCE_3

O Chip Enable of SN6BS00 3

XD7~XD0

I/O Data Bus to Slave Driver

XA9~XA0

O Address Bus to Slave Driver

O Read Write signal

FRAME

O Frame Synchronous Signal

O Display Synchronous Signal

O Alternating signal for LCD

SYNC

O Phase 1 synchronous pin.

TEST

Test Pin

RESETB

Reset Pin

VDD

Positive power supply

GND

Negative power supply

SN6B000

Hi-Density LCD Driver with 8-bit Controller

December 20, 2000

SN6BS00:

Pin Name

I/O

Descriptions

S0~S63

O Segment 0 ~ 63

VLCDR, VLC2, VLC3,
VLC5

LCD Bias

VREG

O Voltage Pumper

VPS

Voltage Pumper

VO1, VO2

Voltage Pumper

XA0~XA9

Address Bus

XD0~XD7

I/O Data Bus

XCE

Chip Enable

Read Write signal

FRAME

Frame Synchronous Signal

Display Synchronous Signal

Alternating signal for LCD

VDD

Positive power supply

GND

Negative power supply

SN6B400:

Pin Name

I/O

Function Description

VDD

Positive power supply

CEB

Chip Enable. (Active Low)

SYNC

Clock Pin

D7~D0

O Data Output

A18~A0

Address Input

VSS

Negative power supply.

SN6B000

Hi-Density LCD Driver with 8-bit Controller

December 20, 2000

ABSOLUTE MAXIMUM RATINGS

(All of the voltages referenced to Vss)

Supply voltage (Vdd)

- 0.3V ~ 6.0V

Input in voltage (Vin) Vss

- 0.2V ~ Vdd + 0.2V

Operating ambient temperature (Topr)

�C ~ + 70�C

Storage ambient temperature (Tstor)

-30

�C ~ + 125�C

Power consumption (Pc)

500 mW

ELECTRICAL CHARACTERISTICS

SN6B000

PARAMETER

SYM.

DESCRIPTION

MIN.

TYP.

MAX. UNIT

Operating voltage

Vdd

3.9

5.1

Operating current

IddH Vdd = 5.0V, I/O pin unload, normal

mode

Idds Vdd = 5.0V,I/O pin unload, slow

mode

Istby Vdd = 5.0V,I/O pin unload, stop

mode

Reset, TEST pin

ViH

0.7Vdd

input voltage

ViL

0.3Vss

Reset, TEST leakage
current

ILekg Vin = Vdd

I/P port input voltage

ViH

0.8Vdd

ViL

0.2Vss

I/P port pull-up resistor

Rup Vin = Vss

150

I/P port input leakage
current

Ilekg Pull-up resistor disable, Vin = Vdd

Port0,1 output source
Current

IoH Vop = Vdd - 0.5V

Port0,1 output sink
Current

IoL Vop = Vss + 0.5V

LCD supply voltage

Vlcd

6.5

LCD frame frequency

Flcd

64/128

Vo output Current

Ivo DA output current

BU1,BU2 Driving
Current

IdBU PWM driving current ability.

BU1/BU2

=2.5V

BU1,BU2 Sinking
Current

IsBU PWM sinking current ability.

BU1/BU2

=2.5V

INTP0 trigger pulse
width

Tint01 P0.0 ~ P0.2 Interrupt request pulse

width

1/fcpu

Oscillator frequency

fHxosc Rosc=300K

MHz

Электронный компонент: SN6B000