SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
4250 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
DESCRIPTION
The 4250 Group is a 4-bit single...
Description
MITSUBISHI MICROCOMPUTERS
4250 Group
SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER
DESCRIPTION
The 4250 Group is a 4-bit single-chip microcomputer designed with CMOS technology. Its CPU is that of the 720 series using a simple instruction set. The computer is equipped with one 8-bit timer which has a reload register and the interrupt function. The various microcomputers in the 4250 Group include variations of the built-in memory type as shown in the table below.
FEATURES
Minimum instruction execution time ............................. 1.0 µs (at 4.0 MHz system clock frequency, VDD=4.5 V to 5.5 V)
Supply voltage 4.5 V to 5.5 V (at 4.0 MHz system clock frequency) 2.5 V to 5.5 V (at 1.0 MHz system clock frequency) 2.2 V to 5.5 V (at 1.0 MHz system clock frequency: only for Mask ROM version)
Timer Timer 1 ................................ 8-bit timer with a reload register
Interrupt ................................................................... 2 sources CR oscillation c...
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