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eSM Series
Tiny Controller-Based
Speech Synthesizer
Product
Specification
DOC. VERSION 1.1
ELAN MICROELECTRONICS CORP.
January 2010

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Trademark Acknowledgments:
IBM is a registered trademark and PS/2 is a trademark of IBM.
Windows is a trademark of Microsoft Corporation.
ELAN and ELAN logo
are trademarks of ELAN Microelectronics Corporation.
Copyright © 2004~2005 by ELAN Microelectronics Corporation
All Rights Reserved
Printed in Taiwan
The contents of this specification are subject to change without further notice. ELAN Microelectronics assumes
no responsibility concerning the accuracy, adequacy, or completeness of this specification. ELAN
Microelectronics makes no commitment to update, or to keep current the information and material contained in
this specification. Such information and material may change to conform to each confirmed order.
In no event shall ELAN Microelectronics be made responsible for any claims attributed to errors, omissions, or
other inaccuracies in the information or material contained in this specification. ELAN Microelectronics shall not
be liable for direct, indirect, special incidental, or consequential damages arising from the use of such information
or material.
The software (if any) described in this specification is furnished under a license or nondisclosure agreement, and
may be used or copied only in accordance with the terms of such agreement.
ELAN Microelectronics products are not intended for use in life support appliances, devices, or systems. Use of
ELAN Microelectronics product in such applications is not supported and is prohibited.
NO PART OF THIS SPECIFICATION MAY BE REPRODUCED OR TRANSMITTED IN ANY FORM OR BY
ANY MEANS WITHOUT THE EXPRESSED WRITTEN PERMISSION OF ELAN MICROELECTRONICS.
ELAN MICROELECTRONICS CORPORATION
Headquarters:
No. 12, Innovation Road 1
Hsinchu Science Park
Hsinchu, Taiwan 30077
Tel: +886 3 563-9977
Fax: +886 3 563-9966
http://www.emc.com.tw
Hong Kong:
Elan (HK) Microelectronics
Corporation, Ltd.
Flat A, 19F., World Tech Centre 95
How Ming Street, Kwun Tong
Kowloon , HONG KONG
Tel: +852 2723-3376
Fax: +852 2723-7780
elanhk@emc.com.hk
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Elan Information
Technology Group (USA)
1821 Saratoga Ave., Suite 250
Saratoga, CA 95070
USA
Tel: +1 408 366-8225
Fax: +1 408 366-8220
Shenzhen:
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Shenzhen, Ltd.
3F, SSMEC Bldg., Gaoxin S. Ave. I
Shenzhen Hi-tech Industrial Park
(South Area), Shenzhen
CHINA 518057
Tel: +86 755 2601-0565
Fax: +86 755 2601-0500
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Shanghai, Ltd.
#23, Zone 115, Lane 572, Bibo Rd.
Zhangjiang Hi-Tech Park
Shanghai, CHINA 201203
Tel: +86 21 5080-3866
Fax: +86 21 5080-4600

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Contents
Contents
1 General Description .................................................................................................. 1
2 Features ..................................................................................................................... 1
3 eSMP020 Pin Assignments....................................................................................... 2
4 Absolute Maximum Ratings ..................................................................................... 3
5 Electrical Characteristics ......................................................................................... 3
6 Application Circuit .................................................................................................... 4
6.1 eSM003 Application Circuit for 4-Key................................................................. 4
6.2 eSM003 Application Circuit for 8-Key................................................................. 5
6.3 eSM005 ~ eSM020 Application Circuit for 4-Key ............................................... 5
6.4 eSM005 ~ eSM020 Application Circuit for 16-Key ............................................. 6
6.5 eSM005 ~ eSM020 Application Circuit for 32-Key ............................................. 6
6.6 eSM005 ~ eSM020 Application Circuit for 64-Key ............................................. 7
6.7 eSM005 ~ eSM020 Application Circuit for 128-Key ........................................... 8
Product Specification (V1.1) 01.07.2010
iii

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Contents
Doc. Version
1.0
1.1
Specification Revision History
Revision Description
Initial version
Add the P1,P2,P3 Input High/Low Voltage for Electrical
Characteristics.
Date
2004/10/04
2010/01/07
iv Product Specification (V1.1) 01.07.2010

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EASY SOUND® – eSM Series
Tiny Controller-Based Speech Synthesizer
1 General Description
eSM Series are single chip Voice/Dual tone Melody/Dual tone Sound Effect synthesizer ICs. It
contains one 4-bit input port (provided for eSM005 and above), two 4-bit I/O ports, a tiny
controller, and adapts improved algorithm to achieve pure speech. User's applications, such as
section combination, trigger modes, control outputs, keyboard matrix, and other logic functions,
are easily implemented by programming through its tiny controller
2 Features
Product
Duration
(@ 6K sample rate)
ROM (bits)
PROGRAM ROM (bits)
RAM (bits)
I/O pins
IR
Flash with Volume (pin)
eSM003 eSM005
3 sec
10Kx10
5 sec
16Kx10
16x4
8 I/O
P2.0 ~ P2.3
P3.0 ~ P3.3
eSM010 eSM015 eSM020
10 sec
15 sec
21 sec
32Kx10
48Kx10
8Kx10
32x4
4 I, 8 I/O
64Kx10
P1.0~P1.3, P2.0~P2.3, P3.0~P3.3
Yes
Yes (P3.3)
eSMP020
(OTP)*
21 sec
64Kx10
*eSMP020 is a flexible OTP IC which can be programmed to clone any of its smaller sister IC’s,
i.e., eSM003 ~ eSM020.
*If to verify the kit board by using the kernel chip. In order to ensure the characteristic, please
double confirm it by using eSMP020.
‹ Single power supply 2.4 V ~ 5 V
‹ One 6-bit timer overflow control
‹ PCM, ASPCM, and ASPCM+ synthesizer, and dual tone melody/sound effect generator
‹ 4K~32K Hz playing speed for voice play-back
‹ Multiple tempos for dual tone melody/sound effect play-back
‹ Variable beats for dual tone melody/sound effect play-back
‹ Multiple volume control levels
‹ Fixed current D/A output to drive external connected transistor for voice output
‹ Pin P3.2 can be programmed as IR communication pin to generate 38KHZ carrier
‹ The IR function of eSM003 is only available in assembly language.
Product Specification (V1.1) 01.07.2010
(This specification is subject to change without further notice)
1