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EMC6D103S-CZC Datasheet(PDF) 11 Page - SMSC Corporation |
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EMC6D103S-CZC Datasheet(HTML) 11 Page - SMSC Corporation |
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11 / 84 page  Fan Control Device with High Frequency PWM Support and Hardware Monitoring Features Datasheet SMSC EMC6D103S 11 Revision 0.2 (09-25-07) DATASHEET Note: The “#” as the suffix of a signal name indicates an “Active Low” signal. Note 3.1 Buffer types per function on multiplexed pins are separated by a slash “/” Buffer types in parenthesis represent multiple buffer types for a single pin function. Note 3.2 This analog input is backdrive protected. 3.2 Buffer Type Description Note: The buffer type values are specified at VCC=3.3V 11 TACH1 Input for monitoring a fan tachometer input. IM IM VCC 12 TACH2 Input for monitoring a fan tachometer input. IM IM VCC 9 TACH3 /INT# Input for monitoring a fan tachometer input. /Interrupt output to indicate a thermal and/or voltage event. IMOD3 IM /OD3 VCC 14 TACH4 /Address Select Input for monitoring a fan tachometer input. If in Address Select Mode, determines the SMBus address of the device. IM IM VCC 24 PWM1 /xTest Out PWM Output 1 controlling speed of fan. When in XOR tree test mode, functions as XOR Tree output. O8 OD8/O8 VCC 10 PWM2 /INT# PWM Output 2 controlling speed of fan. /Interrupt output to indicate a thermal and/or voltage event. OD8 OD8/OD8 VCC 13 PWM3 /Address Enable# PWM Output 3 controlling speed of fan. If pulled to ground at power on, enables Address Select Mode (Address Select pin controls SMBus address of the device). IOD8 OD8/I VCC 4 VCC Positive Power Supply. Nominal 3.3V. VCC is monitored by the Hardware Monitoring Block. (Can be powered by +3.3V Standby power if monitoring in low power states is required.) 3 VSS Analog Ground. Table 3.2 Buffer Type Descriptions BUFFER TYPE DESCRIPTION IM Digital Input IAN Analog Input, Hardware Monitoring Block IMOD3 Input/Output (Open Drain), 3mA sink. O8 Output, 8mA sink, 4mA source. OD8 Output (Open Drain), 8mA sink. IO8 Input/Output, 8mA sink, 4mA source. Table 3.1 Pin Description (continued) PIN # NAME FUNCTION BUFFER TYPE BUFFER REQUIREMENT PER FUNCTION (Note 3.1) POWER WELL NOTES HARDWARE MONITORING BLOCK (24) |
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