Datasheet Summary
LANGUAGE REPEATER
1. GENERAL DESCRIPTION
The GPRT5507A integrates an 8-bit CPU, speech generator, segment LED driver, analog switches, programmable attenuator and a gain amplifier into one chip. The GPRT5507A includes a 40K-byte ROM, 128-byte working SRAM, 4 edge-mode interrupts and a fixed time based generator (FCPU/1024)- . This chip which incorporated with 1 or 2 pieces of 4M X 4 ARAM, can be applied to the versatile audio field, such as a language repeater.
- FCPU: CPU clock
2. Features
- 8-bit microprocessor
- Provide 40K x 8 ROM area for program and audio data
- 128 x 8 working SRAM
- Embedded LPF, ADC, DAC for analog processing
- Provide controlled DRAM interfaces
- 4...