文档介绍：MITSUBISHI PUTERS
3819 Group
SINGLE-CHIP 8-BIT PUTER
DESCRIPTION ●D-A converter ................................................. 8-bit ✕ 1 channels
The 3819 group is a 8-bit puter based on the 740 family ●Zero cross detection input ............................................ 1 channel
core technology. ●Fluorescent display function
The 3819 group has a flourescent display automatic display circuit Segments ........................................................................ 16 to 42
and an 16-channel 8-bit A-D converter as additional functions. Digits .................................................................................. 6 to 16
The various puters in the 3819 group include variations ●2 Clock generating circuit
of internal memory size and packaging. For details, refer to the Clock (XIN-XOUT) ................................. Internal feedback resistor
section on part numbering. Sub-clock (XCIN-XCOUT) ......... Without internal feedback resistor
For details on availability of puters in the 3819 group, re- (connect to external ceramic resonator or quartz-crystal oscil-
fer to the section on group expansion. lator)
●Power source voltage
FEATURES In high-speed mode .................................................. to V
●Basic machine-language instructions ...................................... 71 (at MHz oscillation frequency and high-speed selected)
●The minimum instruction execution time ......................... µs In middle-speed mode............................................... to V
(at MHz oscillation frequency) (at MHz oscillation frequency)
●Memory size ................................................................................. In low-speed mode .................................................... to V
ROM ............................................. 4K to 60 K bytes (at 32 kHz oscillation frequency)
RAM ........................................... 192 to 2048 bytes ●Pow