How can I access data of deaths categorized by sex, age and cause of death and births by age group of the mother?

I access to more specific data on mortality and fertility particularly deaths categorized by age, sex and cause of death. Including data on births by age group of the mother.

Available mortality files including variables such as age, sex, and cause of death can be found here. The same page contains fertility files that contain information such as age of mother. All of these files are microdata samples, meaning that the data are not categorized into age groups, for example. Tabulations of statistics based on age groups would need to be carried out within your statistical software.