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W83791SD, W83792, W83792AD

Table of contents:
Info of W83791SD
Info of W83792
Info of W83792AD

W83791SD, W83792, W83792AD Selling Leads, Datasheet

MFG:WINBOND Package Cooled:QFP D/C:QFP-48

W83791SD, W83792, W83792AD Datasheet download

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Part Number: W83791SD

MFG: WINBOND

Package Cooled: QFP

D/C: QFP-48

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W83791SD General Description

W83791SD/SG is a programmable speech synthesizer with 9-bit current DAC output that can connect to speaker or LINE_OUT by the AC'97 audio codec. It supports 1 CPU present or absent event trap, 5 external event traps, and 127 internal programmable event traps to trigger maximum 133 different speech output. If more than two events happen simultaneously, the priority set is: SLOTOCC# > EVNTRP1 > EVNTRP2 > EVNTRP3 > EVNTRP4 > EVNTRP5 > 127
Programmable events (Bank0 index 09h).

For the application of error messages from BIOS, 127 Programmable events are enabled with a watch dog timer. The time interval is programmable and events will be triggered when time out.

External flash memory interface with Winbond W55FXX is flexible to change warning voice message and support on-line programming flash data through I2CTM interface. An external resistor is added to provide ring oscillator.

Through the application software or BIOS, the users can edit and change the voice database in the serial flash chip by themselves under O.S. A free Windows AP --- Voice EditorTM is provided for the voice editing, which can accept the *.wav file as the voice database resource. Users can replace the voice with which they like through the S/W.

W83791SD/SG also provides two addresses setting pins A0 & A1 for different I2CTM address and can be connected up to 4 devices if necessary.

W83791SD Maximum Ratings

PARAMETER	RATING	UNIT
Power Supply Voltage	-0.3 to 7.0	V
Input Voltage	-0.5 to VDD+0.5	V
Operating Temperature	0 to + 70	°C
Storage Temperature	-55 to + 150	°C

Note: Exposure to conditions beyond those listed under Absolute Maximum Ratings may adversely affect the life and reliability of the device.

W83791SD Features

Speech Item
• Programmable speech synthesizer
• New high fidelity synthesis algorithm
• Build in 8-bit current D/A converter
• Instruction cycle 400 S typically
• Section control provided in each voice section
Variable frequency: 4.8/6/8/12 KHz
• External resistor for ring oscillator
• 1 CPU present or absent trigger input
• 5 External trigger inputs
• 127 Internal programmable trigger inputs with a watch dog timer
• Programmable 0-255 seconds timeout trigger inputs General
• I²CTM serial bus interface
• 2 pins (A0, A1) to provide selectable address setting for application of multiple devices (up to 4 devices) wired through I²CTM interface
• Winbond hardware monitoring application software (Voice Editor^TM) support, for both Windows 95/98/ME/2000 and Windows NT 4.0/5.0
• Internal clock Oscillator with 3M Hz
• 5V VDD operation

W83791SD Connection Diagram

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