1 - Al Kossow's Bitsavers

TMS27128131,072·BIT ERASABLE PROGRAMMABLE READ·ONLY MEMORYlogic symbol tAD (10)A1 (9)A2 (8)EPROM 16384 X 8oA3 (7)A4 (6)A5 (5)A6 (4)(3)A7-----4A8 (25)A9 (24)(21)A10-----1(23)A11-----1A 12 _(2_) __ --1(26)A13 13_ (20)E--.... - ...G (22)ENm."~os:c~< c:;.~entThis symbol is in accordance with IEEE Std 91/ANSI Y32.14 and recent decisions by IEEE and IEC. See explanation on page 10-1.absolute maximum ratings over operating free-air temperature range (unless otherwise noted)+Supply voltage, Vee ..................................................... . -0.6 V to 7 VSupply voltage, Vpp ..................................................... . -0.6 V to 22 VAll input voltage ......................................................... . -0.6 V to7 VOutput voltage .......................................................... . -0.6 V to 7 VOperating free-air temperature range ............................................ ooC to 70 0 CStorage temperature range ................................................ - 65°C to 150 0 C* Stresses beyond those listed under" Absolute Maximum Ratings" may cause permanent damage to the device. This is a stress rating only and functionaloperation of the device at these or any other conditions beyond those indicated in the "Recommended Operating Conditions" section of this specificationis not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.recommended operating conditionsPARAMETERTMS27128MIN NOM MAXUNITSupply voltage, Vee 4.75 5 5.25 VSupply voltage, Vpp Vee VHigh-level input voltage, VIH 2 Vee+ 1 VLow-level input voltage, VIL (see Note 1) -0.1 0.8 VOperating free-air temperature, T A 0 70 °eNOTE 1:The algebraic convention, where the more negative (less positive) limit is designated as minimum, is used in this data sheet for logic voltage levels only.6-64 TEXASINSTRUMENlSPOST OFFICE BOX 225012 • DALLAS, TEXAS 7526518