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PDF eSH285 Data sheet ( Hoja de datos )
| Número de pieza | eSH285 | |
| Descripción | Tiny Controller | |
| Fabricantes | ELAN Microelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de eSH285 (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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eSH Series
Tiny Controller with
Single Speech Channel
Product
Specification
DOC. VERSION1.3
ELAN MICROELECTRONICS CORP.
September 2008
1 page  
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
5 Page 
eSH Series
Tiny Controller with Single Speech Channel
Vdd
VCC
Rosc
SPEAKER
8050
Rb
820~1K
LAMP
VCC
104
U7
eSH
OSCI
OSCO
Vo1A
Vo1B
TRS
P1.0
P1.1
P1.2
P1.3
P2.0
P2.1
P2.2
P2.3
P3.0
P3.1
P3.2
P3.3
P4.0
P4.1
P4.2
P4.3
0~100 Ohm
VCC
10uF~ +
Vdd
TR1
TR2
TR3
TR4
BATTERY
Figure 8-2 eSH Series Application Circuits Showing Vo1B Driving Lamp
Product Specification (V1.3) 09.15.2008
(This specification is subject to change without further notice)
•7
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet eSH285.PDF ] | |
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