SN74LS290D Motorola, SN74LS290D Datasheet
SN74LS290D
Related parts for SN74LS290D
SN74LS290D Summary of contents
Page 1
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 ...
Page 2
SN54/74LS290 LOGIC SYMBOL LS290 PIN 14 CC GND = PIN PINS ...
Page 3
SN54/74LS290 FUNCTIONAL DESCRIPTION The LS290 and LS293 are 4-bit ripple type Decade, and 4-Bit Binary counters respectively. Each device consists of four master/ slave flip-flops which are internally connected to provide a divide-by-two section and a divide-by-five (LS290) or divide-by-eight ...
Page 4
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 ...
Page 5
SN54/74LS290 AC CHARACTERISTICS ( 5 pF) Symbol Symbol Symbol Parameter Parameter Parameter f MAX CP 0 Input Clock Frequency f MAX CP 1 Input Clock Frequency t PLH ...
Page 6
P - SEATING PLANE 0.25 (0.010 - - -T- SEATING PLANE ...
Page 7
... 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 “ ...