S1C88848 8-bit single chip microcomputer original architecture core cpu remote-control carrier output dot-matrix lcd driver (51 32/66 17/67 16, 8 dots) description the S1C88848 microcomputer features the s1c88 (model 3) cmos 8-bit core cpu along with rom, ram, a remote-control carrier output, a dot-matrix lcd controller/driver that allows driving of up to 1,632 pixels, three different timers and a serial interface with optional asynchronization or clock synchronization. the S1C88848 is fully operable over a wide range of voltages, and can perform stable operations even at low voltage (1.8 v min.). like all the devices in the s1c family, this microcomputer has low current consumption (1.7 ? at standby mode). the S1C88848 also contains the svd circuit for detecting drop of battery voltage, and is most suitable for remote controllers for home electric appliances. features core cpu .............................................. s1c 88 (model3) cmos 8-bit core cpu main (osc3) oscillation circu it ............. cr ystal oscillation circuit/ceramic oscillation circuit/cr oscillation circuit 8.2mhz (max.) ( ? 1) (start clock source) sub (osc1) oscillation circuit ............... crystal oscillation circuit/cr oscillation circuit 32.768khz (typ.) ( ? 1) instruction set ........................................ 608 types (usable for multiplication and division instructions) min. instruction execution time ............. 0. 244?ec/8.2mhz (2-clock) internal rom capacity .......................... 48k bytes internal ram capacity ........................... ram: 1.5k bytes display memory: 402 bytes input port ............................................... 10 b its (2 bits can be configured for event counter external clock inputs) internal pull-up resistors are available ( ? 1) output por t ............................................ 5 bits (can be configured for buzzer ? 2 , tout ? 2 , fout ? 2 and infrared remote-control carrier ? 1 outputs) seg40?eg50 are usable as dc output ports ( ? 1) i/o port .................................................. 8 bits (4 bits can be configured for serial interface inputs/outputs ? 2 ) internal pull-up resistors are available ( ? 1) lcd drive r ............................................. dot matrix type 51 segments 32 commons ( ? 1, ? 2) 66 segments 17 commons ( ? 1) 67 segments 16 commons ( ? 1, ? 2) 67 segments 8 commons ( ? 1) built-in lcd power supply circuit (booster type, 5 or 4 potentials) remote controller ................................. infrared remote-control carrier output or dc output serial interface ...................................... 1 ch. (optional clock synchronous system or asynchronous system ? 2 ) programmable timer ............................. 16- bit 2 ch. or 8-bit 4 ch. ( ? 2) , with event counter function clock ti mer ............................................ 8-bit 1 ch. stopwatch timer .................................... 8-bit 1 ch. low voltage operation products
2 S1C88848 sound generator ................................... envelope function, equipped with volume control watchdog tim er ..................................... built-in supply voltage detection (svd) circuit .... 16 value programmable (1.8v to 4.35v) ( ? 2) interrupt ................................................. external interrupt: input port interrupt 2 systems (3 types) internal interrupt: c lock timer interrupt 1 system (4 types) stopwatch timer interrupt 1 system (3 types) programmable timer interrupt 2 systems (4 types) serial interface interrupt 1 system (3 types) remote-control output interrupt 1 system (1 type) supply voltage ...................................... 1. 8v to 5.5v ( ? 3) current consumption (typ.) .................. sleep mode: 1? halt mode (32khz crystal oscillation): 1.7? halt mode (8.2mhz ceramic oscillation): 100? run (32khz crystal oscillation): 4? run (8.2mhz ceramic oscillation): 700? supply fo rm ........................................... qfp15-128pin or chip ? 1 mask option ? 2 software selection ? 3 a supply voltage of less than 2.4 v affects the lcd contrast. block diagram core cpu s1c88 interrupt controller input port oscillator osc1, 2 osc3, 4 reset/test reset test watchdog timer k00?07 k10, k11 (evin0, evin2) i/o port output port serial interface programmable timer /event counter clock timer stopwatch timer power generator v dd v ss v d1, v c1 ? c5 ca?g supply voltage detector ram 1.5k bytes lcd driver p10 (sin) p11 (sout) p12 (sclk) p13 (srdy) r26 (tout/rem * ) r34 (fout) r50 (bz) r27 (tout) r51 (bz * ) remote controller sound generator seg0?eg50 com0?om15 com16?om31 (seg66?eg51) p14?17 ? selectable by mask option rom 48k bytes
3 S1C88848 pin layout diagram qfp15-128pin 65 96 33 64 index 32 1 128 97 S1C88848 pin description v dd v ss v d1 v c1 v c5 ca?g osc1 osc2 osc3 osc4 k00?07 k10/evin0 k11/evin2 r26/tout/rem r27/tout r34/fout r50/bz r51/bz p10/sin p11/sout p12/sclk p13/srdy p14?17 com0?om15 com16?om31 /seg66?eg51 seg0?eg39 seg40?eg50 reset test * 1 71 72 70 67?3 62?8, 95, 96 73 74 68 69 86?9 78 77 97 98 99 100 101 94 93 92 91 90?7 102?17 56?1 118?28, 1?9 30?0 76 75 o i o i o i i i o o o o o i/o i/o i/o i/o i/o o o o o i i pin no. pin name in/out function power supply (+) terminal power supply (gnd) terminal internal operating voltage output terminal lcd drive voltage output terminals lcd voltage boost/reduce-capacitor connection terminals osc1 oscillation input terminal (select crystal or cr oscillation by mask option) osc1 oscillation output terminal osc3 oscillation input terminal (select crystal, ceramic or cr oscillation by mask option) osc3 oscillation output terminal input port terminals (k00?07) input port terminal (k10) or event counter external clock input terminal (evin0) input port terminal (k11) or event counter external clock input terminal (evin2) output port terminal (r26), programmable timer underflow signal inverted output terminal (tout) or remote-control carrier output terminal (rem) (selectable by mask option) output port terminal (r27) or programmable timer underflow signal output terminal (tout) output port terminal (r34) or clock output terminal (fout) output port terminal (r50) or buzzer output terminal (bz) output port terminal (r51) or buzzer inverted output terminal (bz) (selectable by mask option) i/o port terminal (p10) or serial i/f data input terminal (sin) i/o port terminal (p11) or serial i/f data output terminal (sout) i/o port terminal (p12) or serial i/f clock i/o terminal (sclk) i/o port terminal (p13) or serial i/f ready signal output terminal (srdy) i/o port terminals (p14?17) lcd common output terminals lcd common output terminals or lcd segment output terminals com16?om31 (when 1/32 duty is selected) seg66?eg51 (when 1/16 or 1/8 duty is selected) com16, seg65?eg51 (when 1/17 duty is selected) lcd segment output terminals lcd segment output terminals or dc output terminals (selectable by mask option) initial reset input terminal test input terminal ? 1 _______ test is the terminal used for shipping inspection of the ic. for normal operation be sure it is connected to v dd .
S1C88848 http://www.epsondevice.com notice: no part of this material may be reproduced or duplicated in any form or by any means without the written permission of seiko ep son. seiko epson reserves the right to make changes to this material without notice. seiko epson does not assume any liability of any kind arising out of any inaccuracies contained in this material or due to its application or use in any product or circuit and, further, there is n o representation that this material is applicable to products requiring high level reliability, such as, medical products. moreover, no license to an y intellectual property rights is granted by implication or otherwise, and there is no representation or warranty that anything made in accord ance with this material will be free from any patent or copyright infringement of a third party. this material or portions thereof may contain technology or the subject relating to strategic products under the control of the foreign exchange and foreign trade law of japan and may require an export license from the ministry of international trade and industry or other approval from another government agency. ? seiko epson corporation 2004, all right reserved. seiko epson corporation electronic devices marketing & sales div. ed international sales dept. 421-8, hino, hino-shi, tokyo 191-8501, japan phone: +81-42-587-5814 fax: +81-42-587-5117 epson electronic devices website document code: 405125300 issue june, 2004 printed in japan l basic external connection diagram when the piezoelectric buzzer is driven with single terminal and lcd panel is used by 1/5 bias (v c2 standard) S1C88848 lcd panel 51 x 32 [the potential of the substrate (back of the chip) is v ss .] v ss osc1 osc2 osc3 osc4 v d1 v c1 v c2 v c3 v c4 v c5 ca cb cc cd ce cf cg reset v dd test k00 k01 k02 k03 k04 k05 k06 k07 k10 k11 r26 (tout/rem) r27 (tout) r34 (fout) r51 (bz) p10 (sin) p11 (sout) p12 (sclk) p13 (srdy) p14 p15 p16 p17 c g2 c g1 x'tal1 rf cres 3 v c p r50 (bz) + - piezo coil seg0 seg50 com0 com31 x'tal2 or ceramic r cr3 r cr1 c d2 2 1 3 4 n.c. n.c. c 1 c 2 c 3 c 4 c 5 c 6 c 7 c 8 c 9 the connection diagram shown above is an example of when mask option settings are as follows: lcd power source: internal power supply (1/5 bias), reset terminal: with pull-up resistor, r51 specification: general-purpose output port 1 osc1 = crystal oscillation, 2 osc1 = cr oscillation, 3 osc3 = crystal/ceramic oscillation, 4 osc3 = cr oscillation symbol x'tal1 c g1 r cr1 x'tal2 ceramic rf c g2 c d2 r cr3 c 1 c 2 c 3 c 4 c 5 c 6 c 7e c 9 c p cres name crystal oscillator trimmer capacitor resistor for cr oscillation crystal oscillator ceramic oscillator feedback resistor gate capacitor drain capacitor resistor for cr oscillation capacitor between v ss and v d1 capacitor between v ss and v c1 capacitor between v ss and v c2 capacitor between v ss and v c3 capacitor between v ss and v c4 capacitor between v ss and v c5 booster/reducer capacitors capacitor for power supply capacitor for reset terminal recommended value 32.768 khz, ci (max.) = 35 k 5e25 pf 1 m (50 khz) 4.9152 mhz 4 mhz 1 m 15 pf (crystal oscillator) 30 pf (ceramic oscillator) 15 pf (crystal oscillator) 30 pf (ceramic oscillator) 50 k (2 mhz) 0.1 f 0.1 f 0.1 f 0.1 f 0.1 f 0.1 f 0.1 f 3.3 f 0.47 f recommended values for external parts note: the above table is simply an example, and is not guaranteed to work.
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