CAT5251WI-00 ON Semiconductor

CAT5251 Quad Digital Potentiometer (POT) with 256 Taps and SPI Interface CAT5251 MARKING DIAGRAMS (SOIC24) (TSSOP24) L3B RLB CAT5251WT CAT5251YT RRYMXXXX 3YMXXX L = Assembly Location R = Resistance 3 = Lead Finish MatteTin 1 = 2.5 K B = Product Revision (Fixed as B) 2 = 10 K CAT = Fixed as CAT 4 = 50 K 5251W = Device Code 5 = 100 K T = Temperature Range (I = Industrial) L = Assembly Location = Dash B = Product Revision (Fixed as B) RR = Resistance CAT5251Y = Device Code 25 = 2.5 K T = Temperature Range (I = Industrial) 10 = 10 K 3 = Lead Finish MatteTin 50 = 50 K Y = Production Year (Last Digit) 00 = 100 K M = Production Month (19, O, N, D) Y = Production Year (Last Digit) XXX = Last Three Digits of Assembly Lot Number M = Production Month (1-9, O, N, D) XXXX = Last Four Digits of Assembly Lot Number R R R R H0 H1 H2 H3 CS WIPER SCK SPI BUS CONTROL INTERFACE R SI W0 REGISTERS SO R W1 R W2 WP NONVOLATILE R A0 CONTROL W3 DATA A1 LOGIC REGISTERS HOLD R R R R L0 L1 L2 L3 Figure 1. Functional Diagram