74LS293 Motorola, 74LS293 Datasheet
74LS293
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74LS293 Summary of contents
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... DECADE COUNTER; 4-BIT BINARY COUNTER The SN54 / 74LS290 and SN54/ 74LS293 are high-speed 4-bit ripple type counters partitioned into two sections. Each counter has a divide-by-two sec- tion and either a divide-by-five (LS290) or divide-by-eight (LS293) section which are triggered by a HIGH-to-LOW transition on the clock inputs. Each section can be used separately or tied together (Q to CP)to form BCD, Bi-quinary, or Modulo-16 counters ...
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... SN54/74LS290 LOGIC SYMBOL LS290 PIN 14 CC GND = PIN PINS 2, 6 LOGIC DIAGRAMS SN54/74LS293 GND = PIN PINS LS290 LS293 FAST AND LS TTL DATA 5-467 LS293 PIN PIN 14 CC GND = PIN 7 = PIN NUMBERS PIN 14 CC GND = PIN 7 = PIN NUMBERS ...
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... BCD count HIGH Voltage Level L = LOW Voltage Level X = Don’t Care D SN54/74LS293 externally connected to the Q 0 output. The CP 0 input receives the incoming count and a BCD count sequence is produced. B. Symmetrical Bi-quinary Divide-By-Ten Counter — The Q 3 output must be externally connected to the CP 0 input. The input count is then applied to the CP 1 input and a divide-by-ten square wave is obtained at output Q 0 ...
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... SN54/74LS290 SN54/74LS293 GUARANTEED OPERATING RANGES Symbol Parameter V CC Supply Voltage T A Operating Ambient Temperature Range I OH Output Current — High I OL Output Current — Low DC CHARACTERISTICS OVER OPERATING TEMPERATURE RANGE Symbol Symbol Parameter Parameter V IH Input HIGH Voltage Input LOW Voltage ...
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... HIGH data to the Q outputs. *CP 1 PHL Q *The number of Clock Pulses required between the t PHL and t PLH measurements can be determined from the appropriate Truth Tables. MR & MS 1 rec CP 1 PHL Q 1.3 V Figure 2 D SN54/74LS293 Limits LS290 Min Typ Max Min ...
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P - SEATING PLANE 0.25 (0.010 - - -T- SEATING PLANE ...
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... Motorola reserves the right to make changes without further notice to any products herein. Motorola makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does Motorola assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation consequential or incidental damages. “Typical” parameters can and do vary in different applications. All operating parameters, including “ ...