GPRT5507A 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...
GPRT5507A Key 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 Interrupt sources
- Built in watch dog timer
- ROSC. or Crystal OSC. selections
- Provide low battery detector
- Provide power down mode