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74ALS109A Scheda tecnica(PDF) 3 Page - NXP Semiconductors |
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74ALS109A Scheda tecnica(HTML) 3 Page - NXP Semiconductors |
3 / 9 page Philips Semiconductors Product specification 74ALS109A Dual J-K positive edge triggered flip-flop with set and reset 1991 Feb 08 3 LOGIC DIAGRAM VCC = Pin 16 GND = Pin 8 4, 12 SC00042 SD RD 5, 11 1, 15 CP J K 2, 14 3, 13 6, 10 7, 9 Q Q FUNCTION TABLE INPUTS OUTPUTS OPERATING SD RD CP J K Q Q MODE L H X X X H L Asynchronous set H L X X X L H Asynchronous reset L L X X X H* H* Undetermined* H H ↑ h l q q Toggle H H ↑ l l L H Load “0” H H ↑ h h H L Load “1” H H ↑ l h q q Hold “no change” H H L l h q q Hold “no change” H = High voltage level h = High state must be present one setup time prior to Low-to-High clock transition L = Low voltage level l = Low state must be present one setup time prior to Low-to-High clock transition q = Lower case indicate the state of the referenced output prior to the Low-to-High clock transition X = Don’t care ↑ = Low-to-High clock transition * = The output levels in this configuration are not guaranteed to meet the minimum levels for VOH if the set and reset are near VIN maximum. Furthermore, this configuration is nonstable; that is, it will not remain when either set or reset returns to its inactive (High) level. ABSOLUTE MAXIMUM RATINGS (Operation beyond the limit set forth in this table may impair the useful life of the device. Unless otherwise noted these limits are over the operating free-air temperature range.) SYMBOL PARAMETER RATING UNIT VCC Supply voltage –0.5 to +7.0 V VIN Input voltage –0.5 to +7.0 V IIN Input current –30 to +5 mA VOUT Voltage applied to output in high output state –0.5 to VCC V IOUT Current applied to output in Low output state 16 mA Tamb Operating free-air temperature range 0 to +70 °C Tstg Storage temperature range –65 to +150 °C RECOMMENDED OPERATING CONDITIONS SYMBOL PARAMETER LIMITS UNIT SYMBOL PARAMETER MIN NOM MAX UNIT VCC Supply voltage 4.5 5.0 5.5 V VIH High-level input voltage 2.0 V VIL Low-level input voltage 0.8 V IIk Input clamp current –18 mA IOH High-level output current –0.4 mA IOL Low-level output current 8 mA Tamb Operating free-air temperature range 0 +70 °C |
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