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DM74AS533WM bảng dữ liệu(PDF) 1 Page - National Semiconductor (TI) |
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DM74AS533WM bảng dữ liệu(HTML) 1 Page - National Semiconductor (TI) |
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1 / 4 page  TLF6311 December 1989 DM74AS533 Octal D-Type Transparent Latch with TRI-STATE Outputs 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 inverting latches of the AS533 are transparent D- type latches meaning that while the enable (G) is high the Q outputs will follow the complement of the data (D) inputs When the enable is taken low the output will be latched at the complement of 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 TRI-STATE buffer-type outputs drive bus lines directly Connection Diagram Dual-In-Line Package TLF6311 – 1 Order Number DM74AS533WM or DM74AS533N See NS Package Number M20B or N20A TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation RRD-B30M105Printed in U S A |
Số phần tương tự - DM74AS533WM |
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Mô tả tương tự - DM74AS533WM |
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