Technophone 905 / 915 EPROM dump

Technophone Model #MC905A/915A
            Serial #228390
            FCC ID: E02905A
            DOC ID: 816 182 022 I

27C256 EPROM (labeled 905/915 TCVR v4.0) Apr '90 [socketed, checksum $13F4]
UM6116M-2 SRAM
HD63C03YF Hitachi 8-bit MCU (6800 compat.)
TPL 01177 CF70035 N 9040 [81-pin QFP] Technophone
CSI 93C46KI 1K 3-wire serial EEPROM
SA575D Philips compandor
MC3335DW [20-pin SOIC] Motorola speakerphone circuit
TBB 200G (x2) [14-pin SOIC] Siemens PLL w/I2C-bus interface