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eSH Series
Tiny Controller with
Single Speech Channel
Product
Specification
DOC. VERSION1.3
ELAN MICROELECTRONICS CORP.
September 2008

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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.
EASY SOUND is a registered trademark of ELAN Microelectronics Corp.
ELAN and ELAN logo
are trademarks of ELAN Microelectronics Corporation.
Copyright © 2006 ~ 2008 by ELAN Microelectronics Corporation
All Rights Reserved
Printed in Taiwan
The contents of this publication are subject to change without further notice. ELAN Microelectronics assumes
no responsibility concerning the accuracy, adequacy, or completeness of this publication. ELAN
Microelectronics makes no commitment to update, or to keep current the information and material contained in
this publication. 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 publication. ELAN Microelectronics shall
not be liable for direct, indirect, special incidental, or consequential damages arising out of the use of such
information or material.
The software (if any) described in this publication 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 PUBLICATION 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, 19/F, 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:
Elan Microelectronics
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
Shanghai:
Elan Microelectronics
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 Selection Table ........................................................................................................ 2
4 Applications............................................................................................................. 3
5 Pin Description ........................................................................................................ 3
6 Specifications .......................................................................................................... 3
6.1 Absolute Maximum Ratings .............................................................................. 3
6.2 Electrical Characteristics................................................................................... 4
7 Oscillator Frequency Deviation .............................................................................. 5
7.1 Oscillator Frequency vs. Rosc (VDD=3.0V) ...................................................... 5
7.2 Oscillator Frequency vs. VDD (Rosc=100K)................................................... 5
8 Application Circuit................................................................................................... 6
Product Specification (V1.3) 09.15.2008
iii

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Contents
Doc. Version
1.0
1.1
1.2
1.3
Specification Revision History
Revision Description
Initial Specification
Add to directly sink/drive the special motor (Page 1)
Add automatic selection of oscillator (Page 1)
Add the new eSH250/285 chip (Page 2)
Revised Application Circuits (Page 6)
Add the recommendation not to keep the P1.0 high level
(Page 2)
Modify application circuit (Page 7)
Modify coding name (Page 1)
Add the frequency range
Add the application statement for speaker=PWM/Output mode
Date
2006/12/04
2007/05/11
2007/08/27
2008/09/15
Product Specification (V1.3) 09.15.2008
iv

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eSH Series
Tiny Controller with Single Speech Channel
1 General Description
The eSH series IC’s are 4-bit microcontroller based sound processors. The series is
equipped with a synthesized speech to obtain good quality voice as well as one 4-bit
input port, three 4-bit I/O ports, and one 4-bit output port (applicable to eSH007). By
programming through the microcontroller, applications, such as section combination,
trigger mode, output control, keyboard matrix, and other logic functions are easily put
into effect.
2 Features
System clock: 2 MHz @2.4V ~ 5.5V
3~340 seconds voice capacity are provided (@6kHz sample rate)
Sleep mode to conserve power, less than 1µA@3V standby current
Crystal or RC oscillator (optional or by auto-selection)
Built in 4-bit tiny controller
Input/Output ports:
One Input port (P1) with software controlled pull low resistor
Three input/output ports (P2 ~ P4)
P2 is software controlled with pull-low resistor
P2/P3 has software controlled wake-up function
P4 is applicable to eSH120/170/250/285/340
One output port (P5) is applicable to eSH007
I/O Pin P3.2 can be modulated with 38.5kHz carry signal to implement IR
function
I/O Pin P3.3 can be configured as flash with volume application
Flash equipped with 4 volume level options: 1/2, 1/4,1/8, & 1/16
Single ROM for voice program with a maximum of 32K program addressing size
Reset pin is available
Readable ROM data via offset address
4-level stack for subroutine nesting
Built-in traditional DAC and PWM Direct Drive. DAC/PWM can be automatically
selected.
Small variation traditional DAC current
Sample rate range: 4k~24kHz
PCM/5-bit eDPCM/6-bit eDPCM algorithm for speech synthesis (to provide
silence compression), which is transparent to user
Product Specification (V1.3) 09.15.2008
(This specification is subject to change without further notice)
1