diff --git a/datasheets/L9222.pdf b/datasheets/L9222.pdf
new file mode 100644
index 0000000..593b724
Binary files /dev/null and b/datasheets/L9222.pdf differ
diff --git a/datasheets/MC74HC373A-D.PDF b/datasheets/MC74HC373A-D.PDF
new file mode 100644
index 0000000..dc62427
Binary files /dev/null and b/datasheets/MC74HC373A-D.PDF differ
diff --git a/datasheets/l487.pdf b/datasheets/l487.pdf
new file mode 100644
index 0000000..f06263c
Binary files /dev/null and b/datasheets/l487.pdf differ
diff --git a/datasheets/l9822e.pdf b/datasheets/l9822e.pdf
new file mode 100644
index 0000000..dc5eb32
Binary files /dev/null and b/datasheets/l9822e.pdf differ