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DM74AS257SJX 데이터시트

부품명상세내역제조사
DM74AS257SJX 3-STATE Quad 1 of 2 Line Data Selector/Multiplexers Fairchild
Fairchild Semiconductor Fairchild
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General Description
These data selectors/multiplexers contain inverters and drivers to supply full on-chip data selection to the four 3-STATE outputs that can interface directly with data lines of bus-organized systems. A 4-bit word selected from one of two sources is routed to the four outputs. The DM74AS257 presents true data whereas the DM74AS258 presents inverted data to minimize propagation delay time.
This 3-STATE output feature means that n-bit (paralleled) data selectors with up to 300 sources can be implemented for data buses. It also permits the use of standard TTL registers for data retention throughout the system.

Features
■ Switching specifications at 50 pF
■ Switching specifications guaranteed over full temperature and VCC range
■ Advanced oxide-isolated, ion-implanted Schottky TTL process
■ Functionally and pin for pin compatible with Schottky,
   low power Schottky, and advanced low power Schottky
   TTL counterpart
■ Improved AC performance over Schottky, low power
   Schottky, and advanced low power Schottky counterparts
■ 3-STATE buffer-type output drive bus lines directly
■ Expand any data input point
■ Multiplex dual data buses
■ General four functions of two variables (one variable is common)
■ Source programmable counters

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DM74AS257SJX 관련 기타 제조 업체 검색

부품명상세내역PDF제조사
DM54S157 Quad 1 of 2 Line Data Selector/Multiplexers 보기 National ->Texas Instruments
HD74HC258 Quad. 2-to-1-line Data Selectors/Multiplexers (with 3-state outputs) 보기 Hitachi -> Renesas Electronics
74HC257 Quad. 2-to-1-line Data Selectors/Multiplexers (with noninverted 3-state outputs) 보기 Hitachi -> Renesas Electronics
HD74HC258FPEL Quad. 2-to-1-line Data Selectors/Multiplexers (with 3-state outputs) 보기 Renesas Electronics
HD74HC257 Quad. 2-to-1-line Data Selectors/Multiplexers (with noninverted 3-state outputs) 보기 Renesas Electronics
CD40257BMS CMOS Quad 2 Line to 1 Line Data Selector/Multiplexer 보기 Intersil
SN54F257 QUADRUPLE 2-LINE TO 1-LINE TO 1-LINE DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS 보기 Texas Instruments
HD74LS253 Dual 4-line-to-1-line Data Selectors/Multiplexers (with three-state outputs) 보기 Hitachi -> Renesas Electronics
74ACT11257 QUADRUPLE 2-LINE TO 1-LINE DATA SELECTOR/MULTIPLEXER WITH 3-STATE OUTPUTS 보기 Texas Instruments
HD74LS253 Dual 4-line-to-1-line Data Selectors / Multiplexers (with three-state outputs) 보기 Renesas Electronics

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