CPU315-2DP 6ES7315-2AF03-0AB0
SIMATIC S7-300, CPU 315-2 DP CPU WITH INTEGRATED 24 V DC POWER SUPPLY, 64 KBYTE WORKING MEMORY 2ND INTERFACE DP-MASTER/SLAVE.
1999-04-15 ... 2003-04-01
16-Bit Single-Chip Microcontroller Infineon C165
www.infineon.com/dgdl/c165_ds_v20_2000_12_3.pdf