TMS27PC128

TMS27C128 131 072-BIT UV ERASABLE PROGRAMMABLE READ-ONLY MEMORY TMS27PC128 131 072-BIT PROGRAMMABLE READ-ONLY MEMORY This Data Sheet is Applicable to All TMS27C128s and TMS27PC128s Symbolized with Code “B” as Described on Page 12. Organization . . . 16K × 8 Single 5-V Power Supply Pin Compatible With Existing 128K MOS ROMs, PROMs, and EPROMs All Inputs/Outputs Fully TTL Compatible Max Access/Min Cycle Times VCC ± 10% ’27C128-12 ’27C/PC128-15 ’27C/PC128-20 ’27C/PC128-25 120 ns 150 ns 200 ns 250 ns Power Saving CMOS Technology Very High-Speed SNAP! Pulse Programming 3-State Output Buffers 400-mV Minimum DC Noise Immunity With Standard TTL Loads Latchup Immunity of 250 mA on All Input and Output Lines Low Power Dissipation ( VCC = 5.25 V ) – Active . . . 158 mW Worst Case – Standby . . . 1.4 mW Worst Case (CMOS Input Levels) PEP4 Version Available With 168-Hour Burn-In and Choices of Operating Temperature Ranges 128K EPROM Available With MIL-STD-883C Class B High-Reliability Processing (SMJ27C128) description The TMS27C128 series are 131 072-bit, ultraviolet-light erasable, electrically programmable read-only memories. The TMS27PC128 series are 131 072-bit, one time electrically programmable read-only memories. SMLS128E–OCTOBER 1984–REVISED JANUARY 1993 J AND N PACKAGES (TOP VIEW) VPP A12 A7 A6 A5 A4 A3 A2 A1 A0 DQ0 DQ1 DQ2 GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 VCC 27 PGM 26 A13 25 A8 24 A9 23 A11 22 G 21 A10 20 E 19 DQ7 18 ...