Maker : Hitachi
Part No. : 404344RF

  Datasheet PDF : 404344RF.pdf
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Product Information

www.DataSheet4U.com HD404344R Series/HD404394 Series Rev. 7.0 Sept. 1999 Description The HD404344R series and HD404394 series 4-bit microcomputers are products of the HMCS400 series, which is designed to make application systems compact while realizing higher performance and increasing program productivity. Each microcomputer has an A/D converter, two timers and a serial interface. The HD404344R series includes the HD404344R with on-chip 4-kword ROM, HD404342R with 2-kword ROM, and HD404341R with 1-kword ROM. The HD404394 series includes the HD404394 with on-chip 4-kword ROM, HD404392 with 2-kword ROM, and HD404391 with 1-kword ROM. The HD4074344 and HD4074394 are the PROM version ZTAT™ microcomputers. Programs 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. (The PROM program specifications are the same as for the 27256.) ZTAT™: Zero Turn Around Time ZTAT is a Trademark of Hitachi Ltd. Features • Input/output pins  HD404344R series, HD4074344: 22 pins (10pins: Large-current I/O pins)  HD404394 series: 21 pins (3 pins: intermediate-voltage NMOS open drain I/O; 5 pins: NMOS open drain I/O with 15-mA high-current driver) • Two timer/counters  One timer output  One event counter input (with programmable edge detection) • 8-bit clock-synchronous serial interface (1 channel) • On-chip A/D converter  HD404344R series, HD4074344: 8 bit × 4 channel  HD404394 series: 8 bit × 3 channel (with Vref pin) • Built-in oscillator ww w.D a taS hee t 4U .co m www.DataSheet4U.com HD404344R Series/HD404394 Series  HD404344R Series Ceramic oscillator, CR oscillation, External clock drive is also possible.  HD404394 Series, HD4074344 Ceramic oscillator, External clock drive is also possible. Five interrupt sources  One by external source (with programmable edge detection)  Four by internal sources Subroutine stack  Maximum 16 levels including interrupts Two low-power dissipation modes  Standby mode  Stop mode One input signal to return from stop mode Instruction cycle time  1 µs (fOSC = 4 MHz) • • • • • w.D a taS 2 ww hee t 4U .co m www.DataSheet4U.com HD404344R Series/HD404394 Series Type of Products Product Name Type Mask ROM HD404344R Series*1 HD404341RS HD40C4341RS HD404342RS HD40C4342RS HD404344RS HD40C4344RS HD404341RFP HD40C4341RFP HD404342RFP HD40C4342RFP HD404344RFP HD40C4344RFP HD404341RFT HD40C4341RFT HD404342RFT HD40C4342RFT HD404344RFT HD40C4344RFT HCD404344R HCD40C4344R —— 4,096 Chip *3 *4 HD404394FT 4,096 HD404392FT 2,048 HD404391FT 1,024 FP-30D HD404394FP 4,096 HD404392FP 2,048 HD404391FP 1,024 FP-28DA HD404394S 4,096 HD404392S 2,048 HD404394 Series HD404391S ROM (words) 1,024 RAM (digit) 256 Package DP-28S m ZTAT™ HD4074344S HD4074394S HD4074394FP HD4074394FT 4,096 DP-28S FP-28DA FP-30D HD4074344FP HD4074344FT Note: w.D a taS hee t 4U .co 1. The HD404344R Series is available in a mask ROM version only. 2. ZTAT™ chip shipment is not supprted. 3. The specifications of shipped chips differ from those of the package product. Please contact our sales staff for details. ww 3 www.DataSheet4U.com HD404344R Series/HD404394 Series List of Functions Mask ROM item Operating voltage (V) Instruction cycle time (typ.) HD404341R 2.5 to 5.5 1 µs (fosc = 4.0 MHz) ROM (Words) RAM (Digits) I/O High-current I/O pins (Sink 15 mA max) Timer functions Free running timer Reload timer 2 2 1 1 2 1 1 2 1 1 2 1 1 2 1 1 2 1 1 2 2 2 2 2 2 2 1,024 256 22 10 HD404342R 2.5 to 5.5 1 µs (fosc = 4.0 MHz) 2.048 256 22 10 HD404344R 2.5 to 5.5 1 µs (fosc = 4.0 MHz) 4,096 256 22 10 HCD404344R HD40C4341R HD40C4342R HD40C4344R 2.5 to 5.5 1 µs (fosc = 4.0 MHz) 4,096 256 22 10 1,024 256 22 10 2,048 256 22 10 4,096 256 22 10 2.5 to 5.5 2 µs (Rf = 20 kΩ) 2.5 to 5.5 2 µs (Rf = 20 kΩ) 2.5 to 5.5 2 µs (Rf = 20 kΩ) Event counter 1 Watchdog timer...

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