UPD784225Y中文资料瑞萨数据手册PDF规格书

DESCRIPTION

The µPD78F4938A is a product in the µPD784938A Subseries in the 78K/IV Series.

The µPD78F4938A has flash memory in place of the internal ROM of the µPD784938A. The flash memory incorporated enables program writing or erasing with the microcontroller mounted on the target board.

FEATURES

• Pin-compatible with mask ROM version (except VPP pin)

• Flash memory: 256 KB

• Internal RAM: 10496 bytes

• Serial interface: 4 channels

• UART/IOE (3-wire serial I/O): 2 channels (on-chip baud rate generator)

• CSI (3-wire serial I/O): 2 channels

• On-chip IEBusTM controller

• Supply voltage: VDD = 4.0 to 5.5 V (@12.58 MHz operation)

VDD = 3.0 to 5.5 V (@6.29 MHz operation)

APPLICATION

Car audio, etc.