HD404618 Series
4-Bit Single-Chip Microcomputer
Rev. 6.0 Sept. 1998 Description
The HD404618 Series is designed with th...
HD404618 Series
4-Bit Single-Chip Microcomputer
Rev. 6.0 Sept. 1998 Description
The HD404618 Series is designed with the powerful and efficient architecture of the HMCS400 family. The MCU incorporates a high-precision dual-tone multifrequency (DTMF) circuit, LCD driver/controller,
voltage comparator, and 32-kHz watch oscillator circuit. The HD404618 Series includes five chips: the HD404612 with 2-kword ROM; the HD404614 with 4kword ROM; the HD404616 with 6-kword ROM; the HD404618 with 8-kword ROM; the HD4074618 with 8-kword PROM. The HD4074618, incorporating PROM, is a ZTAT™ microcomputer that can dramatically shorten system development periods and smooth the process from debugging to mass production. ZTAT™ : Zero Turn Around time ZTAT is a trademark of Hitachi Ltd.
Features
2048-word × 10-bit ROM (HD404612) 4096-word × 10-bit ROM (HD404614) 6144-word × 10-bit ROM (HD404616) 8192-word × 10-bit ROM (HD404618, HD4074618) 1184-digit × 4-bit RAM 30 I/O pins 10 high-current output pins
CMOS I/O pin circuit configuration Input/output pull-up MOS can be selected by software On-chip DTMF generator LCD controller/driver (32 segments × 4 commons) Three timer/counters Clock-synchronous 8-bit serial interface Six interrupt sources Two by external sources Four by internal sources
HD404618 Series
Subroutine stack up to 16 levels, including interrupts Instruction cycle time 10 µs (fOSC = 400 kHz) 5 µs (fOSC = 800 kHz) Four low-power dissipation ...