▁with ▁existing ▁mask s ▁will ▁continue ▁to ▁be ▁accepted ▁for ▁at ▁least ▁the ▁next ▁year . ▁ ▁The ▁companion ▁devices ▁to ▁all ▁versions ▁of ▁the ▁speech ▁chip ▁were ▁the ▁custom ▁ 4 - bit - inter fac ed ▁ 1 2 8 K bit ▁( 1 6 K i B ) ▁T MS 6 1 0 0 NL ▁( AK A ▁T MC 0 3 5 0 ) ▁and ▁ 3 2 K bit ▁( 4 K i B ) ▁T MS 6 1 2 5 NL ▁( a . k . a . ▁T MC 0 3 5 5 ▁a . k . a . ▁T MS 7 1 2 5 ) ▁read - only ▁mem ories ▁which ▁were ▁mask ▁program med ▁with ▁words ▁required ▁for ▁a ▁specific ▁product . ▁ALL ▁versions ▁of ▁the ▁L PC ▁ch ips ▁until ▁the ▁T SP 5 0 C xx ▁series ▁support ▁them . ▁All ▁versions ▁of ▁the ▁T MS 6 1 0 0 ▁appear ▁to ▁only ▁have ▁ 1 2 8 K bit / 1 6 K i B ▁of ▁content , ▁regardless ▁of ▁rum ors ▁to ▁the ▁contrary . ▁ ▁References ▁ ▁Notes ▁▁ ▁f tp :// anonymous @ ftp . wh tech . com / datas he ets % 2 0 and % 2 0 manual s / Dat as he ets % 2 0 -% 2 0 TI / T MS 5 2 2 0 . PDF ▁- ▁T MS 5 2 2 0 ▁datas heet ▁ ▁Video ▁- ▁Dem on str