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| BU24591 Optical ICs 4bit 1chip micro-controller for CD-DA BU24591 The BU24591 is a 4bit 1chip micro-controller for CD-DA that integrates multiple I/O, such as 8bit 8-channel AD converter, pulse width counter, two lines of SIO, and LCD controller driver with 80 segment (Max.). All LCD segment can be switched into CMOS output by the program. These I/O achieves multi-function with few pins. !Applications Portable CD-DA, CD radio cassette player !Features 1) Low voltage, high-speed operation (VDD=2.3 to 3.6V at 4.4MHz) 2) Built-in 8bit 8-channel AD converter 3) Built-in pulse width counter 4) Built-in two lines of SIO 5) Built-in LCD controller driver with 20 segments, 4 common (With 3 common available) 6) All segment output of LCD controller driver can be switched into CMOS output by the program. !Absolute maximum ratings (Ta=25C) Parameter Applied voltage Power dissipation Operating temperature range Storage temperature range Symbol VDD Pd Topr Tstg Limits -0.3 to +4.5 500 -25 to +75 -55 to +125 Unit V mW C C Reduced by 5mW for each increase in Ta of 1C over 25C. !Recommended operating conditions (Ta=25C) Parameter Power supply voltage Input "H" voltage Input "L" voltage Symbol VDD VIHS VILS Min. 2.3 0.75VDD 0 Typ. - - - Max. 3.6 VDD 0.15VDD Unit V V V 1/7 BU24591 Optical ICs !Block diagram OSC1 OSC2 OSC03A PWC01A IRQ PWC STP Y TMR03B SYSTEM CLK T0,T1 CPU02A X IRQ Acc IRQ STP STP04A W0W3 FLAG CLOCK GEN FLAG STK IRQ STP BIX03A BIN RESET RESET ALU PIO11A P00P03 PIO11A L P10P13 PIO11A H P20P23 SCK0 SIO0 SIN0 SCK1 SIO1 SIN1 SIO04B RAM 512x4 BIT E IRQ E STK SIO04B IRQ IRQ TEST INSTRUCTION DECODER ADC83A 8CH-8BIT /DIGITAL-IN ADC07 PC INC INTERRUPT CONTROL L-BUS LCD07A COMMON GEN. BIAS GEN. COM03 PC STACK 8 ROM 16384x8 BIT U-BUS SEG0003 DISP. SEGMENT DRIVER SEG0407 SEG0811 SEG1215 SEG1619 DPH PROM in not contained. Address bus and data bus do not go out. (External memory cannot be addressed.) The number of bits of ALU is 4. DPL 2/7 BU24591 Optical ICs !Pin assignment GND RESET W3 W2 W1 W0 BIN SCK1 SIO1 SIN1 P23 P22 P21 P20 T1 T0 OSC1 OSC2 VDD ADC0 ADC1 ADC2 ADC3 ADC4 ADC5 ADC6 ADC7 TEST COM0 COM1 COM2 COM3 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 BU24591 !Pin descriptions Pin No. Pin name I/O * * SEG00 SEG01 SEG02 SEG03 SEG04 SEG05 SEG06 SEG07 SEG08 SEG09 SEG10 SEG11 SEG12 SEG13 SEG14 SEG15 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 PWC P13 P12 P11 P10 P03 P02 P01 P00 SCK0 SIO0 SIN0 SEG19 SEG18 SEG17 SEG16 Function 4-bit input or output. Input/Output is specified in a bit by program. (Output is Nch open drain type.) Type 24 to 27 28 to 31 35 to 38 P00 to P03 P10 to P13 P20 to P23 (PI011A block) I/O * Pull-up resistor can be turned ON/OFF in a bit by program. * Upon resetting, input is specified, and the pull-up resistance is turned OFF. 1 * * D 43 to 46 W0 to W3 (STP04A block) I General 4-bit input. It can be used as stop cancellation input and interrupt request signal input by program. (It can be specified in a bit) * Pull-up resistor can be turned ON/OFF in a bit by program. * Upon resetting, the pull-up resistor is turned OFF. C * * 42 BIN (BIX03A block) I * General 1-bit input. It can be used as stop cancellation input and interrupt request signal input by program. C Pull-up resistor can be turned ON/OFF by program. * Upon resetting, the pull-up resistor is turned OFF. 1 Immediately after resetting, terminal is in high impedance state. Therefore, termination may be required in some applications. 3/7 BU24591 Optical ICs Pin No. 21, 39 22, 40 Pin name SIN0, SIN1 SIO0, SIO1 I/O I I/O * Function 8-bit serial data input. 8-bit serial data I/O. I/O is switched by program. Type A E * * 23, 41 SCK0, SCK1 (SIO04B block) * I/O * Clock I/O for sending/receiving serial data. Any of three type of internal clock and one external clock is switched by program. E * 52 to 59 ADC0 to ADC7 (ADC83A block) I Analog data input. Digital data input can be specified in a bit by program. * Upon resetting, analog input is specified. * G 1 to 4 5 to 8 9 to 12 13 to 16 17 to 20 SEG00 to 03 SEG04 to 07 SEG08 to 11 SEG12 to 15 SEG16 to 19 * O LCD segment output or CMOS output can be switched in 4 ports by program. * Upon resetting, CMOS output is specified and polarity is "L". F 61 to 64 COM0 to COM3 (LCD07A block) PWC (PWC01A block) T0, T1 (TMR03B block) O * * LCD common output. Upon selecting 1/3 duty, COM3 outputs GND level. F 32 I * Pulse input. A 33, 34 I * * External count clock input. It can be used as 1-bit input. Oscillation circuit input. External clock input. A 49 OSC1 I * * H 50 OSC2 (OSC03A block) O * Oscillation circuit output. H 60 TEST I * Test input. (This is a terminal for testing and it contains the pull-down resistor. Use it in the open state usually.) B 47 51 48 RESET VDD GND I - - * Reset input. (CPU is reset by setting this terminal to "L".) Power supply Ground A - - * * 4/7 BU24591 Optical ICs !Input output circuit TYPE A TYPE B TYPE C * Hysteresis input * Hysteresis input with pull-down resistance. * Hysteresis input with pull-up resistance which can be turned ON/OFF by program. TYPE D TYPE E TYPE F * Hysteresis input with pull-up resistance or Nch open drain output, which can be controlled by program. * Hysteresis input or CMOS output, which can be controlled by program. * LCD driver output. Only SEG can be switched into CMOS output. TYPE G TYPE H * Analog input or Hysteresis input, which can be controlled by program. * Input and output of oscillation circuit with STOP control. All digital inputs are CMOS gate input. Fig.1 5/7 BU24591 Optical ICs !Electrical characteristics (unless otherwise noted, Ta=25C, VDD=3V) Parameter STOP current Operation current Clock frequency Symbol IDDST IDDOP fOSC OSC1, OSC2 P00 to P03, P10 to P13, P20 to P23, T0, T1, ADC0 to ADC7 W0 to W3, BIN, SIN0, SIN1, SIO0, SIO1, SCK0, SCK1, PWC, Pin Min. - - 2 Typ. - 1.4 - Max. 1 - 4.4 Unit A mA MHz * * * * * Conditions STOP mode fOSC=4.4MHz Hysteresis input P, SIO, SCK for input. ADC for digital input. External clock Hysteresis input P, SIO, SCK for input. ADC for digital input. External clock Input "H" voltage 1 VIH1 2.25 - - V Input "H" voltage 2 VIH2 Input "L" voltage 1 VIL1 RESET, TEST OSC1 P00 to P03, P10 to P13, P20 to P23, T0, T1, ADC0 to ADC7 W0 to W3, BIN, SIN0, SIN1, SIO0, SIO1, SCK0, SCK1, PWC, 2.4 - - V * * * * - - 0.5 V Input "L" voltage 2 VIL2 Input "H" current 1 IIH1 RESET,TEST OSC1 P00 to P03, P10 to P13, P20 to P23, W0 to W3, BIN, SIN0, SIN1, SIO0 SIO1, SCK0, SCK1, ADC0 to ADC7, PWC, T0 T1, RESET, OSC1 TEST P00 to P03, P10 to P13, P20 to P23, W0 to W3, BIN, SIN0, SIN1, SIO0, SIO1, SCK0, SCK1, ADC0 to ADC7, PWC, T0 T1, RESET, TEST, OSC1 P00 to P03, P10 to P13, P20 to P23, W0 to W3, BIN SIO0, SIO1, SCK0, SCK1 SEG00 to SEG19, COM0 to COM3 OSC2 P00 to P03, P10 to P13, P20 to P23, SIO0, SIO1, SCK0, SCK1 SEG00 to SEG19, COM0 to COM3 OSC2 P00 to P03, P10 to P13, P20 to P23 ADC0 to ADC7 ADC0 to ADC7 ADC0 to ADC7 COM0 to COM3 SEG00 to SEG19 COM0 to COM3 SEG00 to SEG19 - - 0.5 V * * - - 1 A Without pull-down resistance * P, SIO, SCK for input. * VIN=VDD * * * Input "H" current 2 IIH2 120 230 410 A Pull-down resistance included VIN=VDD Input "L" current 1 IIL1 - - -1 A Input "L" current 2 IIL2 -35 -82 -150 A W, BIN turned off pull-up resistance * P for input turned off pull-up resistance * SIO, SCK for input * VIN=GND * Turned on pull-up resistance * VIN=GND * Output "H" voltage 1 Output "H" voltage 2 Output "L" voltage 1 Output "L" voltage 2 Output leak current A/D conversion resolution A/D conversion setting time A/D conversion linearity error LCD 2/3 level output voltage LCD 1/3 level output voltage VOH1 VOH2 VOL1 VOL2 IL RES tS EL V1 V2 2.4 2.5 - - - - - - - - - - - - - 8 25 - 2 1 - - 0.4 0.4 1 - - 3 - - V V V V A bits MC LSB V V SIO, SCK for output SEG, COM for LCD driver output * IOH=-500A * IOH=-1.0mA * * * P, SIO, SCK for output SEG, COM for LCD driver output * IOL=1.6mA * * IOL=1.0mA P for Hi-Z output MC : machine cycle 1 2 1 1 machine cycle is 1/6 of 1 clock cycle. 2 Value of linearity error when bypass-capacitor is set on ADC terminal. 6/7 BU24591 Optical ICs !Circuit operation (1) Single power supply operation (VDD=2.3V to 3.6V) (2) Memory size Program memory ROM 16384x8 bits General Purpose RAM 512x4 bits RAM for LCD 20x4 bits (3) Instruction execution time. (one-cycle instruction) 1.5sec (at 4MHz) (4) Subroutine nesting: 8 levels (5) Interrupts: 6 External: 3 Internal: 3 (Timer/counter, serial I/O) (6) ROM data table function (Data table area 16KBytes) (7) Power saving mode. (8) 20-Segment LCD built-in driver available for many kinds of displays. Bias: 1/3 Duty: 1/3, 1/4 (programmable) Built-in bias resistance (approximately 50kx3 stages) (9) LCD segment output can be switched into CMOS output by program. 20 Segments can be switched in 4 ports. Upon resetting, CMOS output is specified and polarity is "L". (10) Remote-control receiver circuit is included. (Pulse width measuring instrument) (11) 8-channel 8-bit A/D converter is included. (12) Each of A/D inputs can be used as digital input by program. (13) Built-in 8-bit timer counter (als used for event counter). (14) Built-in two systems of serial I/O that can interface with any external LSI. (LSB first) (15) 12 I/O ports that can pull up by program. (16) 5 input port that can pull up by program. !External dimensions (Units : mm) 16.40.3 14.00.2 48 49 33 32 16.40.3 14.00.2 64 1 16 17 2.70.1 0.150.1 0.05 0.8 0.350.1 0.15 QFP-A64 0.5 7/7 Appendix Notes No technical content pages of this document may be reproduced in any form or transmitted by any means without prior permission of ROHM CO.,LTD. The contents described herein are subject to change without notice. The specifications for the product described in this document are for reference only. Upon actual use, therefore, please request that specifications to be separately delivered. Application circuit diagrams and circuit constants contained herein are shown as examples of standard use and operation. Please pay careful attention to the peripheral conditions when designing circuits and deciding upon circuit constants in the set. Any data, including, but not limited to application circuit diagrams information, described herein are intended only as illustrations of such devices and not as the specifications for such devices. ROHM CO.,LTD. disclaims any warranty that any use of such devices shall be free from infringement of any third party's intellectual property rights or other proprietary rights, and further, assumes no liability of whatsoever nature in the event of any such infringement, or arising from or connected with or related to the use of such devices. Upon the sale of any such devices, other than for buyer's right to use such devices itself, resell or otherwise dispose of the same, no express or implied right or license to practice or commercially exploit any intellectual property rights or other proprietary rights owned or controlled by ROHM CO., LTD. is granted to any such buyer. Products listed in this document use silicon as a basic material. Products listed in this document are no antiradiation design. The products listed in this document are designed to be used with ordinary electronic equipment or devices (such as audio visual equipment, office-automation equipment, communications devices, electrical appliances and electronic toys). Should you intend to use these products with equipment or devices which require an extremely high level of reliability and the malfunction of with would directly endanger human life (such as medical instruments, transportation equipment, aerospace machinery, nuclear-reactor controllers, fuel controllers and other safety devices), please be sure to consult with our sales representative in advance. About Export Control Order in Japan Products described herein are the objects of controlled goods in Annex 1 (Item 16) of Export Trade Control Order in Japan. In case of export from Japan, please confirm if it applies to "objective" criteria or an "informed" (by MITI clause) on the basis of "catch all controls for Non-Proliferation of Weapons of Mass Destruction. Appendix1-Rev1.0 |
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