TMS27PC240

TMS27C240 262144 BY 16ĆBIT UV ERASABLE TMS27PC240 262144 BY 16ĆBIT PROGRAMMABLE READĆONLY MEMORIES SMLS240D− NOVEMBER 1990 − REVISED SEPTEMBER 1997 D Organization . . . 262 144 by 16 Bits D Single 5-V Power Supply D All Inputs / Outputs Fully TTL Compatible D Static Operations (No Clocks, No Refresh) D Max Access / Min Cycle Time VCC ± 10% ’27C/ PC240-10 ’27C/ PC240-12 ’27C/ PC240-15 100 ns 120 ns 150 ns D 16-Bit Output For Use in Microprocessor-Based Systems D Very High Speed SNAP! Pulse Programming D Power-Saving CMOS Technology D 3-State Output Buffers D 400-mV Minimum DC Noise Immunity With Standard TTL Loads D Latchup Immunity of 250 mA on All Input and Output Lines D No Pullup Resistors Required D Low Power Dissipation ( VCC = 5.5 V ) − Active . . . 275 mW Worst Case − Standby . . . 0.55 mW Worst Case (CMOS-Input Levels) D Temperature Range Options TMS27PC240 FN PACKAGE ( TOP VIEW ) DQ13 DQ14 DQ15 E VPP NC VCC A17 A16 A15 A14 DQ12 DQ11 DQ10 DQ9 DQ8 GND† NC DQ7 DQ6 DQ5 DQ4 6543 7 8 9 10 11 12 13 14 15 16 17 2 1 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 18 19 20 21 22 23 24 25 26 27 28 A13 A12 A11 A10 A9 GND† NC A8 A7 A6 A5 DQ3 DQ2 DQ1 DQ0 G NC A0 A1 A2 A3 A4 PIN NOMENCLATURE A0 −A17 DQ0 −DQ15 E G GND NC VCC VPP Address Inputs Inputs (programming) / Outputs Chip Enable Output Enable Ground No Connection 5-V Supply 13-V Power Supply ‡ † Pins 11 and 30 (J package) and pins 12 and 34 (FN package) must be connected externally to ground. ‡ Onl...