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SN54HC563W Datasheet(PDF) 1 Page - Texas Instruments |
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SN54HC563W Datasheet(HTML) 1 Page - Texas Instruments |
1 / 7 page SN54HC563, SN74HC563 OCTAL TRANSPARENT D-TYPE LATCHES WITH 3-STATE OUTPUTS SCLS145B – DECEMBER 1982 – REVISED MAY 1997 1 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 D High-Current 3-State Outputs Drive Bus Lines Directly or up to 15 LSTTL Loads D Bus-Structured Pinout D Package Options Include Plastic Small-Outline (DW) and Ceramic Flat (W) Packages, Ceramic Chip Carriers (FK), and Standard Plastic (N) and Ceramic (J) 300-mil DIPs description These 8-bit transparent D-type latches feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers. While the latch-enable (LE) input is high, the Q outputs follow the complements of the data (D) inputs. When LE is taken low, the outputs are latched at the inverses of the levels set up at the D inputs. A buffered output-enable (OE) input places the eight outputs in either a normal logic state (high or low logic levels) or the high-impedance state. In the high-impedance state, the outputs neither load nor drive the bus lines significantly. The high-impedance state and increased high logic level provide the capability to drive bus lines without interface or pullup components. OE does not affect internal operations of the latches. Old data can be retained or new data can be entered while the outputs are in the high-impedance state. The SN54HC563 is characterized for operation over the full military temperature range of – 55 °C to 125°C. The SN74HC563 is characterized for operation from –40 °C to 85°C. FUNCTION TABLE (each latch) INPUTS OUTPUT OE LE D Q L H H L L HL H L LX Q0 H X X Z 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 9 10 20 19 18 17 16 15 14 13 12 11 OE 1D 2D 3D 4D 5D 6D 7D 8D GND VCC 1Q 2Q 3Q 4Q 5Q 6Q 7Q 8Q LE SN54HC563 ...J OR W PACKAGE SN74HC563 . . . DW OR N PACKAGE (TOP VIEW) 32 1 20 19 910 11 12 13 4 5 6 7 8 18 17 16 15 14 2Q 3Q 4Q 5Q 6Q 3D 4D 5D 6D 7D SN54HC563 . . . FK PACKAGE (TOP VIEW) Copyright © 1997, 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. |
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