Description

By storing digitized sound data and options into 27C010 and inserting it onto U3, this MSM9026 board emulates the function of S1207 chip and its derivatives. The file for 27C010 content should be prepared by running program 9026pack.exe. The demanded external components are provided on board in specific EAC (External Application Component) area.

Features

■ To emulate S1207 chip and its derivatives, see data sheet PID 247.

■ Driven by either 1.5 V x 4 battery or 5 - 6 V power supply.

■ A 4x1 jumper header JP1 is provided to accept power source.

■ A pair or strengthen wire (E1 & E2) is provided to accept the power source.

■ 2 push button switches are provided to control the power on/off.

■ Selectable (by JP2) auto power off function (after 60 no operation)is provided.

■ A push button switch is provided to reset this M9026 board.

■ A red LED lamp D3 is provided to indicate the power on or off.

■ A 32-pin textool U3 is provided to store 27C010 EPROM (access time 120 ns or faster).

■ 5 green LED lamps are provided on EAC area.

■ 5 red LED lamps are provided on EAC area.

■ 19 push button switches for triggers are provided on EAC area.

■ A 2x1 jumper header JP4 is provided on EAC area to accept wires to speaker.

■ A 3x1 jumper header JP5 is provided on EAC area to decide source for K1,2,3,4 triggers.

■ A 3x5 jumper header is provided on EAC area to select LED lamps for 5 output pins or not.

■ To be continued on page 3/6.

■ A 3x6 jumper header is provided on EAC area to select drive circuit for 3 trigger inputs.

■ A transistor 8050 is provided on EAC area to drive the current running through speaker.

■ The boards AC characteristics is not identical to chips.

■ The boards DC characteristics is not identical to chips.

■ The boards behavior is not identical to chips.

■ Neither identical to S1207s derivatives.