Barclays announced a downgrade for Texas Instruments (TXN) as shares hover above 52-week lows before Wednesday's earnings report. Rachel Dashiell examines the technical patterns in the semiconductor stock, citing an old support zone around $170 which is well above Barclays new price target of $125. On the longer-term chart, Rachel points to a support zone at $140 and a Relative Strength Index (RSI) study tipping downward.