SPC41B2 Sunplus Technology Co., Ltd., SPC41B2 Datasheet - Page 3

• Manufacturer Part Number: SPC41B2
• Description: 40KB SOUND CONTROLLER
• Manufacturer: Sunplus Technology Co., Ltd.

40KB SOUND CONTROLLER
1. GENERAL DESCRIPTION
The SPC41B2 is a CPU based two-channel speech/melody
synthesizer including CMOS 8-bit microprocessor with 69
instructions, 40K-byte ROM for speech and melody data (Speech
is compressed by a 4-bit ADPCM with approx. 13 sec speech
duration @ 6KHz sampling rate) and 64-byte working SRAM. It
includes two Timer/Counters, 12 Software Selectable I/Os, one
8-bit current output (D/A).
speech can be mixed into one output. It operates over a wide
voltage range of 2.4V - 5.5V and includes Low Voltage Reset
function. The Low Voltage Reset automatically resets when the
working voltage is less than 2.2V. In addition, SPC41B2 has a
Clock Stop mode for power savings. The power savings mode
saves the RAM contents, but freezes the oscillator, causing all
other chip functions to be inoperative.
frequency is 6.0MHz. It has an Instruction Cycle Rate of 2 clock
cycles (min.) - 6 clock cycles (max.). The SPC41B2 includes, not
only the latest technology, but also the full commitment and
technical support of Sunplus.
2. BLOCK DIAGRAM
© Sunplus Technology Co., Ltd.
Proprietary & Confidential
Rosc
microprocessor
OSC
CLK
8-bit
12
IOD7 - 0
(I/O)
PINS
40K-byte
Voltage
64-byte
Reset
SRAM
ROM
Low
GENERAL
For audio processing, melody and
I/O
Two Timers
INT control
The Max. CPU clock
TimeBase
PORT
(Current)
IOD3 - 0
8-bit D/A
(I/O)
Two
AUD
3
3. FEATURES
4. APPLICATION FIELD
! Intelligent education toys
! High end toy controller
! Talking instrument controller
! General speech synthesizer
! Industrial controller
! 8-bit microprocessor
! Provides 40K-byte ROM for program and audio data
! 64-byte working SRAM
! Software-based audio processing
! Wide operating voltage: 2.4V - 3.6V @ 4.0MHz
! Supports R
! Max. CPU clock: 4.0MHz @ 2.4V - 3.6V
! Standby mode (Clock Stop mode) for power savings.
! 500ns instruction cycle time @ 4.0MHz CPU clock
! Provides 12 general I/Os
! Two 12-bit timer/counters
! 6 INT sources
! Key wake-up function
! One 8-bit current output (D/A)
! Approx. 13 sec speech
! Low Voltage Reset
Ex. Pattern to voice (animal, car, color, etc.)
Max. 2µA @ 5.0V
@ 6KHz sampling rate with 4-bit ADPCM
Spelling (English or Chinese)
Math
OSC
only
6.0MHz @ 3.6V - 5.5V
3.6V - 5.5V @ 6.0MHz
SPC41B2
SEP. 05, 2001
Version: 1.3