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HT81R03

Features: Operating voltage: 2.4V~5V Directly drives an external transistor PWM function directly driver speaker Low standby current (1A typ. for VDD=3V) Minimal external components 240 notes table ROM for key functions Programmable silence length and end-pulse width (minimal end-pulse width is ...

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SeekIC No. : 004367028 Detail

HT81R03: Features: Operating voltage: 2.4V~5V Directly drives an external transistor PWM function directly driver speaker Low standby current (1A typ. for VDD=3V) Minimal external components 240 notes tabl...

HT81R03 Data Sheet

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Part Number:
HT81R03
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/21

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Product Details

Description



Features:

Operating voltage: 2.4V~5V
Directly drives an external transistor
PWM function directly driver speaker
Low standby current (1A typ. for VDD=3V)
Minimal external components
240 notes table ROM for key functions
Programmable silence length and end-pulse width (minimal end-pulse width is 1.3ms at 8kHz sampling
rate)
Controllable volume
FLAG1 options
End-pulse output
3Hz, 3HzB flash
6Hz, 6HzB flash
Busy output
OFF
FLAG2 options
3Hz flash
6Hz flash
Busy output
OFF
6 keys (Directed)
8 keys (Matrix key)
Key options
Sequential/Directed
Repeat (KEY2~KEY6)
STOP key (KEY6)
Key debounce time: 1.2ms, 22ms, 45ms (based on a 8kHz sampling rate)
One shot/Normal
Pull-high resistance: 0, 50k, 100k, 200k
 Section options
Retriggerable
Non-retriggerable
 Dice form or 16-pin DIP package


Application

 Leisure products
Alarm clocks


Pinout

Connection Diagram


Specifications

Supply Voltage ..........................VSS-0.3V to VSS+6.0V
Input Voltage ............................ VSS-0.3V to VDD+0.3V
Storage Temperature .......................... -50 to 125
Operating Temperature ..........................-20 to 70


Description

The EasyVoiceTM is a single-chip voice synthesizer LSI .

The chip HT81R03 when triggered drives a speaker directly or through an external transistor with a PWM output. Negligible current is consumed in the standby state.

The HT81R03 provides direct key or Matrix key input and 2 programmable FLAG outputs. With 2.4V~5.0V power supply, a complete synthesized voice playback system can be easily built with very few external components.

The customers voice sources are recorded section by section into an internal mask ROM. The instructions of section playback arrangement of each key are stored in the table ROM. The key features of HT81R03 are also programmable.

With such a flexible structure, the EasyVoiceTM HT81R03 is excellent for versatile voice applications.




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