Ordering number : EN*5240 CMOS LSI LC895124 CD-ROM Driver with On-Chip SCSI Interface and Subcode Functions Preliminary Overview The LC895124 is the next-generation version of the LC89512 and is a CD-ROM decoder that includes a SCSI interface that supports the high-speed transfers (10 MB/s) of the FAST SCSI standard. Functions • High-speed transfer mode supports a 10-MB/s (synchronous) transfer rate using ×8 80-ns DRAMs • Subcode ECC function Note: 1. For speeds up to 8× speed, use a SCSI master clock frequency of 20 MHz. Note: 2. For speeds up to 4× speed, use a SCSI master clock frequency of 16.9344 MHz. CD-ROM ECC function, subcode read function, SCSI interface Package Dimensions Features 3214-SQFP144 unit: mm • On-chip SCSI interface (with built-in SCAM selection register) • Supports 8× playback - Using ×16 80-ns DRAMs • Supports 4× playback - Using ×16 80-ns DRAMs or ×8 70-ns DRAMs • Transfer rates: 10 MB/s (synchronous), 5 MB/s (asynchronous) using ×16 80-ns DRAMs*1 • Transfer rates: 8.467 MB/s (synchronous), 4.2336 MB/s (asynchronous) using ×8 70-ns DRAMs*2 • PSRAM can be used, providing 5 MB/s transfers in synchronous mode and 5 MB/s transfers in asynchronous mode . • Supports the connection of up to 32 Mb of buffer RAM (using DRAM) (Up to 2 Mb when PSRAM is used) • The user can freely set the CD main channel, C2 flag, and other areas in buffer RAM. • Batch transfer function (transfers the CD main channel and C2 flag data in a single operation) • Multi-block transfer function (automatically transfers multiple blocks in a single operation) [LC895124] SANYO: SQFP144 Specifications Absolute Maximum Ratings at VSS = 0 V Parameter Maximum supply voltage Symbol Conditions Ratings Unit VDD max Ta = 25°C –0.3 to +7.0 V I/O voltages VI, VO Ta = 25°C –0.3 to VDD + 0.3 V Allowable power dissipation Pd max Ta ≤ 70°C 450 mW Operating temperature Topr –30 to +70 °C Storage temperature Tstg –55 to +125 °C 260 °C Soldering heat resistances (pins only) 10 seconds SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-0005 JAPAN 22896HA (OT) No. 5240-1/8 LC895124 Allowable Operating Ranges at Ta = –30 to +70°C, VSS = 0 V min typ max Supply voltage Parameter Symbol VDD Conditions 4.5 5.0 5.5 Unit V Input voltage range VIN 0 VDD V max Unit 0.8 V 0.6 V 0.8 V DC Characteristics at VSS = 0 V, VDD = 4.5 to 5.5 V, Ta = –30 to +70°C Parameter Symbol Applicable Pins min typ Input high level voltage VIH1 Input low level voltage VIL1 Input high level voltage VIH2 Input low level voltage VIL2 Input high level voltage VIH3 Input low level voltage VIL3 Output high level voltage VOH1 IOH1 = –2 mA: All output pins except (2), (3), and XTALCK, IO0 to IO15, and D0 to D7 Output low level voltage VOL1 IOL1 = 2 mA: All output pins except (2), (3), and XTALCK, IO0 to IO15, and D0 to D7 0.4 V Output low level voltage VOL2 IOL2 = 2 mA: INT1, INT0, and ZSWAIT (open-drain outputs with pull-up resistors) (2) 0.4 V Output low level voltage VOL3 IOL3 = 48 mA: DB0, to DB7, DBP, BSY, I/O, MSG, SEL, RST, REQ, C/D (3) 0.4 V Input leakage current Pull-up resistance IL RUP All input pins other than (1), (3), and XTALCK RESET, IO0 to IO15, D0 to D7, RD, CS, WR, WFCK, SBSO, SCOR (1) Input pins (3), ACK, and ATN VI = VSS, VDD: All input pins IO0 to IO15, D0 to D7, INT0, INT1, ZSWAIT 2.2 V 2.5 V 2.0 V 2.4 V –25 40 +25 µA 160 kΩ typ max Unit 1.60 2.00 80 Note: The subcode-related pins in group (1) are not provided by the LC895124. SCSI Pin Input Characteristics Parameter Input threshold voltage Hysteresis width Symbol Vt + t1 Vt – t1 ∆Vtt1 Conditions VDD = 4.5 to 5.5 V VDD = 5.0 V min V 0.80 1.11 V 0.41 0.49 V Sample Recommended Oscillator Circuit R1 = 120 kΩ R2 = 47 Ω C1 = 30 pF Crystal oscillator frequencies: XTALCK0 = 16.9344 MHz and XTALCK1 = 20 MHz or: R1 = 3.3 kΩ R2 = None C1 = 5 pF Crystal oscillator frequency: XTALCK0 = 33.8688 MHz If third harmonic overtones appear when using a 33.8688 MHz frequency with the recommended circuit example, consult with the manufacturer of the crystal element, since detailed values of the circuit constants will be influenced by the printed circuit board. No. 5240-2/8 LC895124 Block Diagram Note: 1 BCK, SDATA, LRCK, C2PO 2. DB0 to DB7, DBP, BSY, MSG, SEL, RST, REQ, I/O, C/D 3. ACK, ATN 4. ZRD, ZWR, SUA0 to SUA6, ZCS, CSCTRL 5. D0 to D7 6. IO0 to IO15 7. RA0 to RA16, ZRAS0, ZRAS1, ZCAS0, ZCAS1, ZOE, ZUWE, ZLWE Note: IO8 to IO15 and RA9 to RA16 are the same pins. Subcode pins are connected to CD-DSP or to VSS. No. 5240-3/8 LC895124 Pin Functions Type: I: Input pin, O: Output pin, B: Bidirectional pin, P: Power supply pin, NC: No connection pin Pin No. Symbol Type 1 VSS0 P Function 2 VSS0 P 3 VSS0 P 4 VSS0 P 5 ZRAS0 O Buffer RAM RAS signal output pin 0 (Normally, pin 0 is used) 6 ZRAS1 O Buffer RAM RAS signal output pin 1 7 ZCAS0 O Buffer RAM CAS signal output pin 0 (Normally, pin 0 is used) 8 ZCAS1 O Buffer RAM CAS signal output pin 1 9 ZOE O Buffer RAM output enable 10 ZUWE O Buffer RAM upper write enable 11 ZLWE O Buffer RAM lower write enable 12 VSS0 P 13 RA0 O 14 RA1 O 15 RA2 O 16 RA3 O 17 RA4 O 18 VDD P 19 VSS0 P 20 RA5 O 21 RA6 O 22 RA7 O 23 RA8 O 24 RA9 (IO15) B 25 RA10 (IO14) B 26 RA11 (IO13) B 27 RA12 (IO12) B 28 VSS0 P 29 RA13 (IO11) B 30 RA14 (IO10) B 31 RA15 (IO9) B 32 RA16 (IO8) B 33 IO7 B 34 IO6 B 35 IO5 B Buffer RAM address signal outputs Buffer RAM address signal outputs Address outputs for the buffer RAM or data I/O pins The pin circuits include pull-up resistors. Address outputs for the buffer RAM or data I/O pins The pin circuits include pull-up resistors. Buffer RAM data I/O. The pin circuit includes a pull-up resistor. 36 VSS0 P 37 VDD P 38 IO4 B 39 IO3 B 40 IO2 B 41 IO1 B 42 IO0 B 43 VSS0 P 44 XTALCK0 I Crystal oscillator input 45 XTAL0 O Crystal oscillator output 46 VDD P 47 MCK O 48 TEST0 I 49 TEST1 I 50 TEST2 I Address outputs for the buffer RAM or data I/O pins The pin circuits include pull-up resistors. Outputs the XTALCK0 frequency, or that frequency divided by 2. Test pins. These pins must be connected to VSS0. Note: 1. 2. 3. 4. NC pins must be left open. Do not connect any signal to these pins. Pin names that start with Z are negative-logic signals. VSS0 is the logic system ground and VSS1 is the SCSI interface ground. Applications that use DRAM must insert resistors in the CAS and RAS lines, connect capacitors between these lines and ground, and take any other measures necessary to prevent undershoot in the DRAM related circuits. 5. Since these circuits include buffers that sink 48 mA, adequate noise prevention measures must be applied. Continued on next page. No. 5240-4/8 LC895124 Continued from preceding page. Type: I: Input pin, O: Output pin, B: Bidirectional pin, P: Power supply pin, NC: No connection pin Pin No. Symbol Type 51 TEST3 I 52 TEST4 I 53 ZRESET I 54 VDD P 55 VSS0 P 56 CSCTRL I Selects active-high or active-low for the microcontroller CS logic. 57 X1EN I Selection pin that must be set to 1 when XTALCK1 is used. 58 XTALCK1 I SCSI block oscillator circuit input. Selected by X1EN. 59 XTAL1 O SCSI block oscillator circuit output. 60 ZSWAIT O WAIT signal output to the microcontroller 61 VDD P 62 VSS0 P 63 D0 B 64 D1 B 65 D2 B 66 D3 B 67 D4 B 68 D5 B 69 D6 B 70 D7 B 71 ZRD I 72 VSS0 P 73 VDD P 74 ZWR I Microcontroller data write signal input 75 ZCS I Input for the register chip select signal from the microcontroller 76 SUA0 I 77 SUA1 I 78 SUA2 I 79 SUA3 I 80 SUA4 I 81 SUA5 I 82 SUA6 I 83 ZINT0 O Interrupt request output to the microcontroller (ECC side. Set with a register.) 84 ZINT1 O Interrupt request output to the microcontroller (SCSI side. Set with a register.) 85 NC 86 NC 87 NC 88 NC 89 Function Test pins. These pins must be connected to VSS0. LSI reset. The LSI is reset on a 0 input. Microcontroller data signals Microcontroller data read signal input Register chip select signal from the microcontoller NC 90 VDD 91 VSS1 P P 92 NC 93 NC 94 NC 95 DB0 B 96 VSS1 P 97 DB1 B 98 DB2 B 99 VSS1 P 100 DB3 B SCSI connection SCSI connection SCSI connection Note: 1. 2. 3. 4. NC pins must be left open. Do not connect any signal to these pins. Pin names that start with Z are negative-logic signals. VSS0 is the logic system ground and VSS1 is the SCSI interface ground. Applications that use DRAM must insert resistors in the CAS and RAS lines, connect capacitors between these lines and ground, and take any other measures necessary to prevent undershoot in the DRAM related circuits. 5. Since these circuits include buffers that sink 48 mA, adequate noise prevention measures must be applied. Continued on next page. No. 5240-5/8 LC895124 Continued from preceding page. Type: I: Input pin, O: Output pin, B: Bidirectional pin, P: Power supply pin, NC: No connection pin Pin No. Symbol Type 101 DB4 B 102 VSS1 P 103 DB5 B 104 DB6 B 105 VSS1 P 106 DB7 B 107 DBP B 108 VSS1 P 109 VDD P 110 ATN B 111 BSY B 112 VSS1 P 113 ACK B 114 RST B 115 VSS1 P 116 MSG B 117 SEL B 118 VSS1 P 119 C/D B 120 REQ B 121 NC 122 NC 123 SCSI connection SCSI connection SCSI connection SCSI connection SCSI connection SCSI connection NC 124 VSS1 P 125 I/O B 126 VDD P 127 VSS0 NC 129 NC 130 NC 131 NC 132 NC 133 SCSI connection P 128 NC 134 VSS0 P 135 VSS0 P 136 VSS0 137 P NC 138 NC 139 C2PO 140 SDATA I 141 BCK I 142 LRCK 143 144 Function SCSI connection I CD-DSP interface I NC VDD P Note: 1. 2. 3. 4. NC pins must be left open. Do not connect any signal to these pins. Pin names that start with Z are negative-logic signals. VSS0 is the logic system ground and VSS1 is the SCSI interface ground. Applications that use DRAM must insert resistors in the CAS and RAS lines, connect capacitors between these lines and ground, and take any other measures necessary to prevent undershoot in the DRAM related circuits. 5. Since these circuits include buffers that sink 48 mA, adequate noise prevention measures must be applied. No. 5240-6/8 LC895124 Pin Functions 1. SCSI Pins • BSY, ACK, MSG, SEL, REQ, ATN, I/O, C/D (input and output) SCSI bus control pins. • DB0 to DB7, DBPB (input and output) These are the SCSI data bus pins. 2. Microcontroller Interface Pins • ZCS (input) Microcontroller chip select line • CSCTRL (input) Microcontroller chip select logic selection signal High - ZCS is an active low signal. Low - ZCS is an active high signal. • ZRD, ZWR, SUA0 to SUA6 (input) Microcontroller interface control signal The SUA0 to SUA6 pins are used for addressing. • ZSWAIT (output) When the microcontroller accesses RAM, it must wait if this pin is low. This is a built-in pull-up resistor open drain output. • D7 to D0 (input and output) Microcontroller data bus. Pull-up resistors are built in. • ZINT0, ZINT1 (output) Interrupt request output to the microcontroller. A SCSI-side interrupt can be output from ZINT1 by setting the C register (bit 7 in R11). This is a built-in pull-up resistor open drain output. 3. Buffer RAM Pins • IO0 to IO15 (input and output) Buffer RAM data bus. Pull-up resistors are built in. The IO8 to IO15 pins have shared functions as the RA9 to RA16 pins. This means that 16-bit PSRAM cannot be used. • RA0 to RA16 (output) Buffer RAM address lines. RA9 to RA16 have shared functions as the IO8 to IO15 pins. This means that 16-bit PSRAM cannot be used. • ZRAS0, ZRAS1, (ZCS0), (ZCS1) (output) Buffer DRAM RAS outputs. Normally, ZRAS0 is used. However, when two 1-MB (64k × 16-bit) DRAM chips are used, the respective DRAM RAS pins are connected to ZRAS0 and ZRAS1. Connected to the CS pin if PSRAM is used. • ZCAS0, ZCAS1 (output) Buffer DRAM CAS outputs. Normally, ZCAS0 is used. However, when two 1-MB (64k × 16-bit) DRAM chips are used, the respective DRAM CAS pins are connected to ZCAS0. • ZOE (output) Buffer RAM read output signal • ZUWE, ZLWE (output) Buffer RAM write output signals. Connected to the corresponding pins on the RAM chip. Leave ZUWE open if an 8-bit RAM is used. 4. CD DSP Data Pins • BCK, SDATA, LRCK, C2PO (input) The LC895124 reads in CD-ROM data over these pins connected to a CD DSP. C2PO is the C2 flag pin. No. 5240-7/8 LC895124 5. Other Pins • ZRESET (input) Reset input to the LC895124. The LC895124 is reset by a low-level input. This pin must be held low for a period of at least 1 µs when power is first applied. • XTALCK0, XTAL0 The main clock for the ECC and SCSI blocks. These pins support frequencies from 16.9344 to 25 MHz. When a double-frequency input is used, these pins accept frequencies up to 38 MHz. Use a double-frequency input when a ceramic oscillator and DRAM are used. (This is because the internal clock must have a 50% duty.) An external clock may input to the XTALCK pin. The SCSI block main clock can also be provided from XTALCK1 and XTAL1 if so specified by the setting of X1EN (pin 89). • XTALCK1, XTAL1 The main clock for the ECC and SCSI blocks. These pins are enabled for oscillator operation by setting X1EN (pin 89). The LC895124 is designed so that the ECC and SCSI blocks can also be operated asynchronously. This means that precise 10-MB/s synchronous transfers can be achieved by providing a 20-MHz input to XTALCK1 and XTAL1. A ceramic oscillator may be used here since only the rising edge of this signal is used. In applications that do not use these pins, XTALCK1 must be tied to VSS and XTAL1 must be left open. • X1EN (input) Set this pin to 1 to us use XTALCK1 and XTAL1 for the SCSI block main clock. Set this pin to 0 to drive both the ECC and SCSI blocks from XTALCK0 and XTAL0. • MCK (output) Outputs either the XTALCK0 frequency or that frequency divided by 2. This pin’s output can also be stopped if desired. ■ No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, death or property loss. ■ Anyone purchasing any products described or contained herein for an above-mentioned use shall: ➀ Accept full responsibility and indemnify and defend SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors and all their officers and employees, jointly and severally, against any and all claims and litigation and all damages, cost and expenses associated with such use: ➁ Not impose any responsibility for any fault or negligence which may be cited in any such claim or litigation on SANYO ELECTRIC CO., LTD., its affiliates, subsidiaries and distributors or any of their officers and employees jointly or severally. ■ Information (including circuit diagrams and circuit parameters) herein is for example only; it is not guaranteed for volume production. SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of February, 1996. Specifications and information herein are subject to change without notice. PS No. 5240-8/8