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SN74SSTL16857 数据表(PDF) 1 Page - Texas Instruments |
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SN74SSTL16857 数据表(HTML) 1 Page - Texas Instruments |
1 / 7 page SN74SSTL16857 14-BIT SSTL_2 REGISTERED BUFFER SCAS625C – FEBRUARY 1999 – REVISED OCTOBER 1999 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D Member of the Texas Instruments Widebus ™ Family D Supports SSTL_2 Signal Data Inputs and Outputs D Supports LVTTL Switching Levels on the RESET Pin D Differential CLK Signal D Flow-Through Architecture Optimizes PCB Layout D Meets SSTL_2 Class II Specifications D Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II D ESD Protection Exceeds JESD 22 – 2000-V Human-Body Model (A114-A) – 200-V Machine Model (A115-A) – 1000-V Charged-Device Model (C101) D Packaged in Plastic Thin Shrink Small-Outline Package description This 14-bit registered buffer is designed for 2.3-V to 3.6-V VCC operation and SSTL_2 data input and output levels. All inputs are compatible with the JEDEC Standard for SSTL_2, except the LVCMOS reset (RESET) input. All outputs are SSTL_2, Class II compatible. When RESET is low, the differential input receivers are disabled, and undriven (floating) data and clock inputs are allowed. In addition, when RESET is low, all registers are reset, and all outputs are forced low. The LVCMOS RESET input must always be held at a valid logic high or low level. To ensure defined outputs from the register before a stable clock has been supplied, RESET must be held in the low state during power up. The SN74SSTL16857 is characterized for operation from 0 °C to 70°C. FUNCTION TABLE (each flip-flop) INPUTS OUTPUT RESET CLK CLK D Q L X X X L H ↓↑ HH H ↓↑ LL H L or H L or H X Q0 Copyright © 1999, Texas Instruments Incorporated Widebus is a trademark of Texas Instruments Incorporated. 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. 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. DGG PACKAGE (TOP VIEW) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 Q1 Q2 GND VDDQ Q3 Q4 Q5 GND VDDQ Q6 Q7 VDDQ GND Q8 Q9 VDDQ GND Q10 Q11 Q12 VDDQ GND Q13 Q14 D1 D2 GND VCC D3 D4 D5 D6 D7 CLK CLK VCC GND VREF RESET D8 D9 D10 D11 D12 VCC GND D13 D14 |
类似零件编号 - SN74SSTL16857 |
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类似说明 - SN74SSTL16857 |
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