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LC72700E Fiches technique(PDF) 9 Page - Sanyo Semicon Device |
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LC72700E Fiches technique(HTML) 9 Page - Sanyo Semicon Device |
9 / 14 page 4. Control Data Timing in Parallel Mode Handling Pins for the Unused Mode when the CPU Interface is Specified 1. When Serial Mode is Specified 2. When Parallel Mode is Specified Note:** 1. The data values shown above are for the state immediately following a reset operation. 2. The INT-R pin (pin 35) signal is always output regardless of the mode. 3. Since the S/P pin (pin 42) has a built-in pull-up resistor, serial mode will be selected if it is left open. No. 4870-9/14 LC72700E, LC72700G PORT2 PORT1 PORT0 Item Set data Default value 0 0 0 Allowed error count Upper 4 bits Back allowed errors 2 Lower 4 bits Forward allowed errors 2 0 0 1 Block error protection Upper 4 bits Back protection count 1 count Lower 4 bits Forward protection count 7 0 1 0 Frame error protection Upper 4 bits Back protection count 1 count Lower 4 bits Forward protection count 7 0 1 1 Error correction initial Upper 4 bits — — threshold value Lower 3 bits Initial threshold value 7 1 0 0 Readout block no. 0 to 189 (8 bits) 0 Pin Pin No. Pin state Handling PST (37) Pull-up resistor input Leave open or connect to the power-supply (VDD) PORT0 to 2 (38 to 40) Pull-up resistor input Leave open or connect to the power-supply (VDD) DATA0 to 7 (13 to 20) Output direction (fixed at the low level) Leave open RDY (26) Fixed at a high-level output Leave open RDY0 (27) Fixed at a high-level output Leave open RE (25) Pull-up resistor input Leave open or connect to the power-supply (VDD) Pin Pin No. Pin state Handling CL (29) Input pin Connect to the power supply or ground CE (30) Input pin Connect to the power supply or ground DI (31) Input pin Connect to the power supply or ground DO (32) Open-drain output in the off state Connect to ground Register set Input data DAT0 to 7 Output Output PORT0 to 2 PST <Input direction> tps ≥ 300 ns DAT pin I/O direction 500 to 800 ns |
Numéro de pièce similaire - LC72700E |
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Description similaire - LC72700E |
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