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ASM2I99456G-32-LR Datasheet(PDF) 3 Page - PulseCore Semiconductor |
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ASM2I99456G-32-LR Datasheet(HTML) 3 Page - PulseCore Semiconductor |
3 / 14 page November 2006 ASM2I99456 rev 0.3 3.3V/2.5V LVCMOS Clock Fanout Buffer 3 of 14 Notice: The information in this document is subject to change without notice. Table 1. Pin Configuration Pin Number Pin I/O Type Function 3 4 PECL_CLK, PECL_CLK Input LVPECL Differential Clock reference Low Voltage positive ECL input 5,6,7 FSELA, FSELB, FSELC Input LVCMOS Output bank divide select input 32 MR/OE Input LVCMOS Internal reset and output tristate control 8,11,15,20,24,27,31 GND Supply Negative Voltage supply output bank (GND) 25,29 18,22 9,13, 17 VCCA, VCCB 1, VCCC Supply Positive Voltage supply for output banks 2 VCC Supply Positive Voltage supply core (VCC) 30,28,26 QA0 - QA2 Output LVCMOS Bank A Outputs 23,21,19 QB0 - QB2 Output LVCMOS Bank B Outputs 10,12,14,16 QC0 - QC3 Output LVCMOS Bank C Outputs 1 NC No Connect Note:1 VCCB is internally connected to VCC. Table 2. Supported Single and Dual Supply Configurations Supply voltage configuration VCC 1 VCCA 2 VCCB 3 VCCC 4 GND 3.3V 3.3V 3.3V 3.3V 3.3V 0V Mixed voltage supply 3.3V 3.3V or 2.5V 3.3V 3.3V or 2.5V 0 V 2.5V 2.5V 2.5V 2.5V 2.5V 0 V Note: 1 VCC is the positive power supply of the device core and input circuitry. VCC voltage defines the input threshold and levels 2 VCCA is the positive power supply of the bank A outputs. VCCA voltage defines bank A output levels 3 VCCB is the positive power supply of the bank B outputs. VCCB voltage defines bank B output levels. VCCB is internally connected to VCC. 4 VCCC is the positive power supply of the bank C outputs. VCCC voltage defines bank C output levels Table 3. Function Table (Controls) Control Default 0 1 FSELA 0 fQA0:2 = fREF fQA0:2 = fREF ÷2 FSELB 0 fQB0:2 = fREF fQB0:2 = fREF ÷2 FSELC 0 fQC0:3 = fREF fQC0:3 = fREF ÷2 MR/OE 0 Outputs enabled Internal reset Outputs disabled (tristate) Table 4. Absolute Maximum Ratings 1 Symbol Characteristics Min Max Unit Condition VCC Supply Voltage -0.3 4.6 V VIN DC Input Voltage -0.3 VCC+0.3 V VOUT DC Output Voltage -0.3 VCC+0.3 V IIN DC Input Current ±20 mA IOUT DC Output Current ±50 mA TS Storage temperature -40 125 °C Note: These are stress ratings only and are not implied for functional use. Exposure to absolute maximum ratings for prolonged periods of time may affect device reliability. |
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