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CAT1321UI-42TDFN 데이터시트(PDF) 2 Page - Catalyst Semiconductor |
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CAT1321UI-42TDFN 데이터시트(HTML) 2 Page - Catalyst Semiconductor |
2 / 18 page 2 CAT1320, CAT1321 Advance Information Doc. No. 25085, Rev. 00 PIN DESCRIPTION RESET/ RESET RESET RESET RESET RESET: RESET OUTPUTS These are open-drain pins and RESET can also be used as a manual reset trigger input. By forcing a reset condition on the pin the device will initiate and maintain a reset condition. The RESET pin must be connected through a pull-down resistor and the RESET pin must be connected through a pull-up resistor. SDA: SERIAL DATA ADDRESS The bidirectional serial data/address pin is used to trans- fer all data into and out of the device. The SDA pin is an open drain output and can be wire-ORed with other open drain or open collector outputs. BLOCK DIAGRAM — CAT1320, CAT1321 PIN FUNCTIONS Pin Name Function RESET Active Low Reset Input/Output (CAT1320) VSS Ground SDA Serial Data/Address SCL Clock Input RESET Active High Reset Output (CAT1321) VCC Power Supply OPERATING TEMPERATURE RANGE Industrial -40˚C to 85˚C Part Dash Minimum Maximum Number Threshold Threshold -45 4.50 4.75 -42 4.25 4.50 -30 3.00 3.15 -28 2.85 3.00 -25 2.55 2.70 Threshold Voltage Options SCL: SERIAL CLOCK Serial clock input. A0, A1, A2: DEVICE ADDRESS INPUTS When hardwired, up to eight CAT1320/21 devices may be addressed on a single bus system (refer to Device Addressing). When the pins are left unconnected, the default values are zeros. 32kbit DOUT ACK SENSE AMPS SHIFT REGISTERS CONTROL LOGIC WORD ADDRESS BUFFERS START/STOP LOGIC EEPROM VCC EXTERNAL LOAD COLUMN DECODERS XDEC DATA IN STORAGE HIGH VOLTAGE/ TIMING CONTROL VSS SDA RESET Controller Precision Vcc Monitor STATE COUNTERS SLAVE ADDRESS COMPARATORS SCL RESET (CAT1320) RESET (CAT1321) A0 A1 A2 |
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