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74AC11112 Folha de dados(PDF) 1 Page - Texas Instruments |
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74AC11112 Folha de dados(HTML) 1 Page - Texas Instruments |
1 / 7 page 54AC11112, 74AC11112 DUAL JK NEGATIVEEDGETRIGGERED FLIPFLOPS WITH CLEAR AND PRESET SCAS073A − JUNE 1989 − REVISED APRIL 1993 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77001 Copyright 1993, Texas Instruments Incorporated 2−1 • Flow-Through Architecture Optimizes PCB Layout • Center-Pin V CC and GND Configuration Minimizes High-Speed Switching Noise • EPIC (Enhanced-Performance Implanted CMOS) 1- µm Process • 500-mA Typical Latch-Up Immunity at 125 °C • ESD Protection Exceeds 2000 V, MIL STD-883C Method 3015 • Package Options Include Plastic Small- Outline Packages, Ceramic Chip Carriers, and Standard Plastic and Ceramic 300-mil DIPs description These devices contain two independent J-K negative-edge-triggered flip-flops. A low level at the preset (PRE) or clear (CLR) inputs sets or resets the outputs regardless of the levels of the other inputs. When preset and clear are inactive (high), data at the J and K inputs meeting the setup time requirements are transferred to the outputs on the negative-going edge of the clock pulse. Clock triggering occurs at a voltage level and is not directly related to the fall time of the clock pulse. Following the hold time interval, data at the J and K inputs may be changed without affecting the levels at the outputs. These versatile flip-flops can perform as toggle flip-flops by tying J and K high. The 54AC11112 is characterized for operation over the full military temperature range of − 55 °C to 125°C. The 74AC11112 is characterized for operation from − 40 °C to 85°C. FUNCTION TABLE (each gate) INPUTS OUTPUTS PRE CLR CLK J K Q Q L H X X X H L H LX X X L H L LX X X H{ H{ H H ↓ LL QO QO H H ↓ HL H L H H ↓ LHL H H H ↓ H H Toggle H H H X X QO QO † This configuration is nonstable; that is, it will not persist when either PRE or CLR returns to its inactive (high) level. 54AC11112 ...J PACKAGE 74AC11112 ...D OR N PACKAGE (TOP VIEW) 54AC11112 . . . FK PACKAGE (TOP VIEW) NC − No internal connection 1PRE 1Q 1Q GND 2Q 2Q 2PRE 2J 1J 1K 1CLK 1CLR VCC 2CLR 2CLK 2K 3 2 1 20 19 910 11 12 13 4 5 6 7 8 18 17 16 15 14 2CLK 2K NC 2J 2PRE 1K 1J NC 1PRE 1Q 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 EPIC is a trademark of 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. |
Nº de peça semelhante - 74AC11112 |
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Descrição semelhante - 74AC11112 |
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