MM54C923J-MIL National Semiconductor, MM54C923J-MIL Datasheet
MM54C923J-MIL
Specifications of MM54C923J-MIL
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MM54C923J-MIL Summary of contents
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... Dual-In-Line Package TL F 6037–1 Top View Order Number MM54C922 or MM74C922 TRI-STATE is a registered trademark of National Semiconductor Corporation C 1995 National Semiconductor Corporation TL F 6037 An internal register remembers the last key pressed even after the key is released The TRI-STATE outputs provide for easy expansion and bus operation and are LPTTL com- ...
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... Absolute Maximum Ratings If Military Aerospace specified devices are required please contact the National Semiconductor Sales Office Distributors for availability and specifications Voltage at Any Pin Operating Temperature Range MM54C922 MM54C923 b MM74C922 MM74C923 b DC Electrical Characteristics Symbol Parameter CMOS TO CMOS V Positive-Going Threshold Voltage ...
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DC Electrical Characteristics Min Max limits apply across temperature range unless otherwise specified (Continued) Symbol Parameter OUTPUT DRIVE (See 54C 74C Family Characteristics Data Sheet) (Short Circuit Current) I Output Source Current SOURCE (P-Channel) I Output Source Current SOURCE (P-Channel) ...
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Block Diagram Truth Table Switch Position ...
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Typical Performance Characteristics Typical Any Y Input Typical SCAN OSC Typical Applications Synchronous Handshake (MM74C922) Note 3 The keyboard may be synchronously scanned by omitting the capacitor at osc and driving ...
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Typical Applications (Continued) Asynchronous Data Entry Onto Bus (MM74C922) Outputs are in TRI-STATE until key is pressed then data is placed on bus When key is released outputs return to TRI-STATE Expansion to 32 Key Encoder (MM74C922) Theory of Operation ...
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... Physical Dimensions inches (millimeters) Order Number MM54C922J or MM74C922J Order Number MM54C923J or MM74C923J Ceramic Dual-In-Line Package (J) NS Package Number J18A Ceramic Dual-In-Line Package (J) NS Package Number J20A 7 ...
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Physical Dimensions inches (millimeters) (Continued) Plastic Small Outline I C Package (M) Order Number MM74C922M or MM74C923M NS Package Number M20B 8 ...
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Physical Dimensions inches (millimeters) (Continued) Order Number MM54C922N or MM74C922N Plastic Dual-In-Line Package (N) NS Package Number N18A 9 ...
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... Hong Kong Ltd 49) 0-180-530 85 86 13th Floor Straight Block a Ocean Centre 5 Canton Rd 49) 0-180-530 85 85 Tsimshatsui Kowloon a Tel ( 49) 0-180-532 78 32 Hong Kong a 49) 0-180-532 93 58 Tel (852) 2737-1600 a Tel ( 49) 0-180-534 16 80 Fax (852) 2736-9960 a National Semiconductor Japan Ltd Tel 81-043-299-2309 Fax 81-043-299-2408 ...