HD404618 Datasheet, PDF (1/89 Pages) Hitachi Semiconductor – 4-Bit Single-Chip Microcomputer

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 4-
kword 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