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DM74ALS373SJ Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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DM74ALS373SJ Datasheet(HTML) 1 Page - National Semiconductor (TI) |
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1 / 6 page  TLF6220 March 1996 DM74ALS373 Octal D-Type TRI-STATE Transparent Latch General Description These 8-bit registers feature totem-pole TRI-STATE outputs designed specifically for driving highly-capacitive or relative- ly low-impedance loads The high-impedance state and in- creased high-logic-level drive provide these registers with the capability of being connected directly to and driving the bus lines in a bus-organized system without need for inter- face or pull-up components They are particularly attractive for implementing buffer registers IO ports bidirectional bus drivers and working registers The eight latches of the ALS373 are transparent D-type latches While the enable (G) is high the Q outputs will fol- low the data (D) inputs When the enable is taken low the output will be latched at the level of the data that was set up A buffered output control input can be used to place the eight outputs in either a normal logic state (high or low logic levels) or a high-impedance state In the high-impedance state the outputs neither load nor drive the bus lines signifi- cantly The output control does not affect the internal operation of the latches That is the old data can be retained or new data can be entered even while the outputs are off Features Y Switching specifications at 50 pF Y Switching specifications guaranteed over full tempera- ture and VCC range Y Advanced oxide-isolated ion-implanted Schottky TTL process Y Functionally and pin for pin compatible with LS TTL counterpart Y Improved AC performance over LS373 at approximately half the power Y TRI-STATE buffer-type outputs drive bus lines directly Connection Diagram Dual-In-Line Package TLF6220 – 1 Order Number DM74ALS373WM DM74ALS373N or DM74ALS373SJ See NS Package Number M20B M20D or N20A TRI-STATE is a registered trademark of National Semiconductor Corporation C1996 National Semiconductor Corporation RRD-B30M36Printed in U S A http www nationalcom |
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