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TMS27C020-10JL Datasheet(PDF) 2 Page - Texas Instruments |
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TMS27C020-10JL Datasheet(HTML) 2 Page - Texas Instruments |
2 / 15 page TMS27C020 262144 BY 8-BIT UV ERASABLE TMS27PC020 262144 BY 8-BIT PROGRAMMABLE READ-ONLY MEMORIES SMLS020C – NOVEMBER 1990 – REVISED SEPTEMBER 1997 2 POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251–1443 description (continued) These devices are fabricated using power-saving CMOS technology for high speed and simple interface with MOS and bipolar circuits. All inputs ( including program data inputs) can be driven by Series 74 TTL circuits without the use of external pullup resistors. Each output can drive one Series 74 TTL circuit without external resistors. The TMS27C020 EPROM is offered in a dual-in-line ceramic package (J suffix) designed for insertion in mounting hole rows on 15,2-mm (600-mil) centers. The TMS27C020 is also offered with two choices of temperature ranges of 0 ° to 70°C (JL suffix) and – 40°C to 85°C (JE suffix). See Table 1. The TMS27PC020 is offered in a 32-lead plastic leaded chip carrier using 1,25 mm (50 mil) lead spacing ( FM suffix). The TMS27PC020 is offered with two choices of temperature ranges of 0 °C to 70°C (FML suffix) and – 40 °C to 85°C (FME suffix). See Table 1. Table 1. Temperature Range Suffixes FUNCTION SUFFIX FOR OPERATING TEMPERATURE RANGES 0 °C TO 70°C – 40 °C TO 85°C TMS27C040-XXX JL JE TMS27PC040-XXX FML FME These EPROMs operate from a single 5-V supply ( in the read mode), they are ideal for use in microprocessor-based systems. One other (13 V) supply is needed for programming. All programming signals are TTL level. For programming outside the system, existing EPROM programmers can be used. operation The seven modes of operation for the TMS27C020 and TMS27PC020 are listed in Table 2. The read mode requires a single 5-V supply. All inputs are TTL level except for VPP during programming (13 V), and VH (12 V) on A9 for the signature mode. Table 2. Operation Modes MODE† FUNCTION READ OUTPUT DISABLE STANDBY PROGRAMMING VERIFY PROGRAM INHIBIT SIGNATURE MODE E VIL VIL VIH VIL VIL VIH VIL G VIL VIH X VIH VIL X VIL PGM X X X VIL VIH X X VPP X VCC VCC VPP VPP VPP VCC VCC VCC VCC VCC VCC VCC VCC VCC A9 X X X X X X VH‡ VH‡ A0 X X X X X X VIL VIH CODE DQ0 – DQ7 Data Out Hi-Z Hi-Z Data In Data Out Hi-Z MFG DEVICE 97 32 † X can be VIL or VIH ‡ VH = 12 V ± 0.5 V |
Similar Part No. - TMS27C020-10JL |
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Similar Description - TMS27C020-10JL |
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