HT86384, HT8656, HT86576 Selling Leads, Datasheet
MFG:HOLTEK Package Cooled:QFP-100 D/C:08+
HT86384, HT8656, HT86576 Datasheet download
Part Number: HT86384
MFG: HOLTEK
Package Cooled: QFP-100
D/C: 08+
HT86384, HT8656, HT86576
- Table of contents:
Info of HT86384
Info of HT8656
Info of HT86576
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About HT86384
PDF/DataSheet Download
Datasheet: HT86384
File Size: 377109 KB
Manufacturer: HOLTEK [Holtek Semiconductor Inc]
Download : Click here to Download
About HT80232
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Datasheet: HT80232
File Size: 1122633 KB
Manufacturer:
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About HT86576
PDF/DataSheet Download
Datasheet: HT86576
File Size: 377109 KB
Manufacturer: HOLTEK [Holtek Semiconductor Inc]
Download : Click here to Download
HT8656 General Description
The HT8656 is a single chip CMOS LSI for talking back applications using an ADM algorithm. Functions of the IC consist of recording/ playing as well as auto power off. It starts recording when a sound input is detected, and stops to play back when silence lasts 0.5 secondsduring recording. The auto power off function is activated once a REC/PLAY cycle has been implemented 64 times or an interval of silence exceeds 2 minutes.
The HT8656 provides a recording capacity of 2 seconds for DRAM of 64K and 8 seconds for DRAM of 256K at a 32Kb sampling rate and double recording capacity at a 16Kb sampling rate. A higher sampling rate will result in sounds of better quality but sacrifice the recording time, and vice versa.
HT8656 Maximum Ratings
Supply Voltage .................................0.3V to 6V
Storage Temperature................. 50 to 125
Input Voltage................. VSS0.3V to VDD+0.3V
Operating Temperature............... 20 to 70
*Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute Maximum Ratings" may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
Storage Temperature................. 50 to 125
Input Voltage................. VSS0.3V to VDD+0.3V
Operating Temperature............... 20 to 70
*Note: These are stress ratings only. Stresses exceeding the range specified under "Absolute Maximum Ratings" may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.
HT8656 Features
` Operating voltage: 4.5V~5.5V
` ADM algorithm
` DRAM selection:
64K
256K
` Sampling rate selection:
32Kb
16Kb
` Auto stop recording
0.5 seconds silence is detected
Recording capacity is full
` Built-in 2-stage microphone amplifier
` Built-in DRAM refresh circuit
` Voltage type D/A output
` Current type D/A output
` Auto record and playback
` Auto power-off
` Low power consumption
` ADM algorithm
` DRAM selection:
64K
256K
` Sampling rate selection:
32Kb
16Kb
` Auto stop recording
0.5 seconds silence is detected
Recording capacity is full
` Built-in 2-stage microphone amplifier
` Built-in DRAM refresh circuit
` Voltage type D/A output
` Current type D/A output
` Auto record and playback
` Auto power-off
` Low power consumption
HT8656 Typical Application
· Toys
· Education
· Games
· Education
· Games
HT8656 Connection Diagram
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