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CDC304 数据表(PDF) 1 Page - Texas Instruments |
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CDC304 数据表(HTML) 1 Page - Texas Instruments |
1 / 6 page CDC304 OCTAL DIVIDEBY 2 CIRCUIT/CLOCK DRIVER SCAS325A − JULY 1990 − REVISED NOVEMBER 1995 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443 D Replaces SN74AS304 D Maximum Output Skew of 1 ns D Maximum Pulse Skew of 1.5 ns D TTL-Compatible Inputs and Outputs D Center-Pin VCC and GND Configurations Minimize High-Speed Switching Noise D Package Options Include Plastic Small-Outline (D) Package and Standard Plastic (N) 300-mil DIPs description The CDC304 contains eight flip-flops designed to have low skew between outputs. The eight outputs (in-phase with CLK) toggle on successive CLK pulses. Preset (PRE) and clear (CLR) inputs are provided to set the Q outputs high or low independent of the clock (CLK) input. The CDC304 has output and pulse-skew parameters tsk(o) and tsk(p) to ensure performance as a clock driver when a divide-by-two function is required. The CDC304 is characterized for operation from 0 °C to 70°C. FUNCTION TABLE INPUTS OUTPUTS CLR PRE CLK OUTPUTS Q1− Q8 L H X L H LX H L LX L† H H ↑ Q0 H H L Q0 † This configuration does not persist when PRE or CLR returns to its inactive (high) level. logic symbol‡ S 10 R 14 11 CLK Q1 15 Q2 16 Q3 1 Q4 2 Q5 6 Q6 7 T PRE CLR Q7 8 Q8 9 ‡ This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Copyright 1995, Texas Instruments Incorporated PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 Q3 Q4 GND GND GND Q5 Q6 Q7 Q2 Q1 CLR VCC VCC CLK PRE Q8 D OR N PACKAGE (TOP VIEW) |
类似零件编号 - CDC304_09 |
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类似说明 - CDC304_09 |
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