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CAT1022YI-25-GT2 数据表(PDF) 3 Page - Catalyst Semiconductor |
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CAT1022YI-25-GT2 数据表(HTML) 3 Page - Catalyst Semiconductor |
3 / 21 page CAT1021, CAT1022, CAT1023 © 2007 Catalyst Semiconductor, Inc. 3 Doc. No. 3009 Rev. L Characteristics subject to change without notice PIN DESCRIPTION RESET/RESET ¯¯¯¯¯¯: RESET OUTPUT (RESET CAT1021/23 Only) These are open drain pins and RESET ¯¯¯¯¯¯ can 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 transfer 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. SCL: SERIAL CLOCK Serial clock input. MR ¯¯¯: MANUAL RESET INPUT Manual Reset input is a debounced input that can be connected to an external source for Manual Reset. Pulling the MR input low will generate a Reset condition. Reset outputs are active while MR input is low and for the reset timeout period after MR returns to high. The input has an internal pull up resistor. WP (CAT1021 Only): WRITE PROTECT INPUT When WP input is tied to VSS or left unconnected write operations to the entire array are allowed. When tied to VCC, the entire array is protected. This input has an internal pull down resistor. WDI (CAT1023 Only): WATCHDOG TIMER INTERRUPT Watchdog Timer Interrupt Input is used to reset the watchdog timer. If a transition from high to low or low to high does not occur every 1.6 seconds, the RESET outputs will be driven active. PIN FUNCTION Pin Name Function NC No Connect RESET ¯¯¯¯¯¯ Active Low Reset Input/Output VSS Ground SDA Serial Data/Address SCL Clock Input RESET Active High Reset Output (CAT1021/23) VCC Power Supply WP Write Protect (CAT1021 only) MR ¯¯¯ Manual Reset Input WDI Watchdog Timer Interrupt (CAT1023) OPERATING TEMPERATURE RANGE Industrial -40ºC to 85ºC Extended -40ºC to 125ºC CAT102X FAMILY OVERVIEW Device Manual Reset Input Pin Watchdog Watchdog Monitor Pin Write Protection Pin Independent Auxiliary Voltage Sense RESET: Active High and LOW EEPROM CAT1021 SDA 2k CAT1022 SDA 2k CAT1023 WDI 2k CAT1024 2k CAT1025 2k CAT1026 2k CAT1027 WDI 2k For supervisory circuits with embedded 16k EEPROM, please refer to the CAT1161, CAT1162 and CAT1163 data sheets. |
类似零件编号 - CAT1022YI-25-GT2 |
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类似说明 - CAT1022YI-25-GT2 |
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