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STE2004S 数据表(PDF) 6 Page - STMicroelectronics |
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STE2004S 数据表(HTML) 6 Page - STMicroelectronics |
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6 / 79 page  Pin description STE2004S 6/79 SCLK - SCL 181 I SCLK - Serial and SPI interface clock - cannot be left floating ISCL - I2C bus clock - cannot be left floating SDA_OUT 178 O I2C Bus data out - if unused must be left floating SA0 149 I I2C slave address BIT 0 - cannot be left floating SA1 148 I I2C slave address BIT 1- cannot be left floating DB0 to DB7 182-189 I/O Parallel interface 8 bit data bus - cannot be left floating R/W - RD 175 I R/W - 68000 Series Parallel interface read and write control input - cannot be left floating I RD - 8080 Series Parallel interface read enable clock input - cannot be left floating E / WR 176 I E - 68000 Series Parallel interface read and write clock input - cannot be left floating E / WR 176 I WR - 8080 Series Parallel interface - write enable clock input - cannot be left floating RES 172 I Reset input. Active Low. D/C 174 I Interface data/command selector- cannot be left floating CS 173 I Serial and Parallel interfaces ENABLE. When Low the incoming data are clocked In. Cannot be left floating TEST_MODE 191 I Test Pad - 50 kohm internal pull-down must be connected to VSS/VSSAUX TEST_VREF 146 O Test Pad - must be left floating OSCIN 144 I Oscillator Input: OSCOUT 210 O Internal/external oscillator out - if unused must be left floating FR_OUT 211 O Master slave frame inversion synchronization - f unused must be left floating FR_IN 143 I Master slave frame inversion synchronization - cannot be left floating M/S 100 I Master/slave configuration bit:- cannot be left floating Table 1. Pin description (continued) N° Pad Type Function OSC_IN Configuration High Internal oscillator enabled Low Internal oscillator disabled External Oscillator Internal oscillator disabled M/S PIN OSC_OUT FR_OUT FR_IN Charge Pump High ENABLED Enabled Disabled AuxVsense disabled Low ENABLED Enabled Enabled Charge pump in slave mode or ext power |
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