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HD4074008F

Hitachi Semiconductor
Part Number HD4074008F
Manufacturer Hitachi Semiconductor
Description Two timer/counters
Published Mar 23, 2005
Detailed Description HD404849 Series 4-Bit Single-Chip Microcomputer Rev. 6.0 Sept. 1998 Description The HD404849 series of HMCS400-series m...
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HD4074008F
HD4074008F

Overview
HD404849 Series 4-Bit Single-Chip Microcomputer Rev.
6.
0 Sept.
1998 Description The HD404849 series of HMCS400-series microcomputers is designed to increase program productivity and also incorporate large-capacity memory.
Each microcomputer has an LCD controller/driver, A/D converter, input capture circuit, 32-kHz oscillator for clock use, and four low-power dissipation modes.
The HD404849 series includes the HD404848 with an 8-kword on-chip ROM, the HD4048412 with a 12kword on-chip ROM, the HD404849 with a 16-kword on-chip ROM, and the HD4074849 with a 16-kword on-chip PROM.
On-chip ROM is available in a PROM (ZTAT™ microcomputer) version and a mask ROM version.
A program can be written to the PROM by a PROM writer, which can dramatically shorten system development periods and smooth the process from debugging to mass production.
PROM programming specifications are the same as for the 27256.
ZTAT ™: Zero Turn Around Time ZTAT is a trademark of Hitachi Ltd.
Features • 35 I/O pins, including nine high-current pins (15 mA, max.
), eight pins multiplexed with LCD segment pins, and four pins multiplexed with analog input pins • Four timer/counters • Eight-bit input capture circuit • Three timer outputs (including two PWM outputs) • Two event counter inputs (including one in which the detection edge is programmable) • Clock-synchronous 8-bit serial interface • A/D converter (8 channels × 8 bits)  Operation voltage 2.
7 V to 6.
0 V • LCD driver (32 segments × 4 commons) • Built-in oscillators  Main clock: Can be driven by ceramic oscillator, crystal oscillator, or external clock.
 Subclock: 32.
768-kHz crystal • Ten interrupt sources  Four by external sources, including two in which the detection edge is programmable HD404849 Series • •  Six by internal sources Subroutine stack up to 16 levels, including interrupts Four low-power dissipation modes  Standby mode  Stop mode  Watch mode  Subactive mode One external input for transition from stop mode to active mode I...


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