The requested file:
https://pdf.datasheetcatalog.com/datasheet_pdf/motorola/MCCS146818B1M_to_MCCS156818BP.pdf
is the data sheet for the following electronic components:

Motorola

#	Part Name	Description
1	MCCS146818B1M	V(dd): 5.5V; V(in): -0.5 to +0.5V; 15mA; real time clock plus SRAM
2	MCCS146818BFN	V(dd): 5.5V; V(in): -0.5 to +0.5V; 15mA; real time clock plus SRAM
3	MCCS146818BM	V(dd): 5.5V; V(in): -0.5 to +0.5V; 15mA; real time clock plus SRAM
4	MCCS146818BP	V(dd): 5.5V; V(in): -0.5 to +0.5V; 15mA; real time clock plus SRAM
5	MCCS156818B1M	V(dd): 5.5V; V(in): -0.5 to +0.5V; 15mA; real time clock plus SRAM
6	MCCS156818BDW	V(dd): 5.5V; V(in): -0.5 to +0.5V; 15mA; real time clock plus SRAM
7	MCCS156818BM	V(dd): 5.5V; V(in): -0.5 to +0.5V; 15mA; real time clock plus SRAM
8	MCCS156818BP	V(dd): 5.5V; V(in): -0.5 to +0.5V; 15mA; real time clock plus SRAM

Select the part name and then you can download the datasheet in PDF format.