DATASHEET ICM7242 FN2866 Rev 5.00 Long Range Fixed Timer September 14, 2015 The ICM7242 is a CMOS timer/counter circuit consisting of Features an RC oscillator followed by an 8-bit binary counter. It will Replaces the 2242 in Most Applications replace the 2242 in most applications, with a significant reduction in the number of external components. Timing From Microseconds to Days Three outputs are provided. They are the oscillator output, Cascadable and buffered outputs from the first and eighth counters. Monostable or Astable Operation Wide Supply Voltage Range . 2V to 16V Ordering Information PART PACKAGE Low Supply Current 115A at 5V NUMBER PART TEMP. (RoHS PKG. Pb-Free Plus Anneal Available (RoHS Compliant) (See Note) MARKING RANGE (C) Compliant) DWG. ICM7242IPAZ 7242 IPAZ -25 to +85 8 Ld PDIP** E8.3 Pinout ICM7242CBAZ* 7242 CBAZ 0 to +70 8 Ld SOIC M8.15 ICM7242 (No longer (8 LD PDIP, SOIC) available or TOP VIEW supported) ICM7242IBAZ* 7242 IBAZ -25 to +85 8 Ld SOIC M8.15 V 1 8 TB I/O DD (No longer available or 2 OUT 2 7 RC supported) 128/256 OUT 3 6 TRIGGER *Add -T suffix for tape and reel. V 4 5 RESET SS **Pb-free PDIPs can be used for through hole wave solder processing only. They are not intended for use in Reflow solder processing applications. NOTE: Intersil Pb-free plus anneal products employ special Pb-free material sets molding compounds/die attach materials and 100% matte tin plate termination finish, which are RoHS compliant and compatible with both SnPb and Pb-free soldering operations. Intersil Pb-free products are MSL classified at Pb-free peak reflow temperatures that meet or exceed the Pb-free requirements of IPC/JEDEC J STD-020 FN2866 Rev 5.00 Page 1 of 11 September 14, 2015ICM7242 Functional Block Diagram R 1 Q Q Q Q 50k CL CL CL CL Q Q Q Q + S S S S - R 2 86k R + S Q Q Q Q Q - 7 CL CL CL CL R Q R 3 Q Q Q Q RC 50k S S S S 1 4 8 5 6 2 3 V V TB I/O RESET TRIGGER 2 OUT 128/256 DD SS OUTPUT FN2866 Rev 5.00 Page 2 of 11 September 14, 2015