描述 Description

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
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? 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.

特性 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.?