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LC895124 Datasheet(PDF) 5 Page - Sanyo Semicon Device |
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LC895124 Datasheet(HTML) 5 Page - Sanyo Semicon Device |
5 / 8 page Continued from preceding page. Type: I: Input pin, O: Output pin, B: Bidirectional pin, P: Power supply pin, NC: No connection pin Note: 1. NC pins must be left open. Do not connect any signal to these pins. 2. Pin names that start with Z are negative-logic signals. 3. VSS0 is the logic system ground and VSS1 is the SCSI interface ground. 4. 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. 5240-5/8 LC895124 Pin No. Symbol Type Function 51 TEST3 I Test pins. These pins must be connected to VSS0. 52 TEST4 I 53 ZRESET I LSI reset. The LSI is reset on a 0 input. 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 Microcontroller data signals 68 D5 B 69 D6 B 70 D7 B 71 ZRD I Microcontroller data read signal input 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 Register chip select signal from the microcontoller 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 NC 90 VDD P 91 VSS1 P 92 NC 93 NC 94 NC 95 DB0 B SCSI connection 96 VSS1 P 97 DB1 B SCSI connection 98 DB2 B 99 VSS1 P 100 DB3 B SCSI connection Continued on next page. |
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