SMJ27C256-15JM Austin Semiconductor, Inc., SMJ27C256-15JM Datasheet
SMJ27C256-15JM
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SMJ27C256-15JM Summary of contents
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... GENERAL DESCRIPTION The SMJ27C256 series is a set of 262,144 bit, ultraviolet- light erasable, electrically programmable read-only memories. 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 54 TTL circuits without the use of external pullup resistors ...
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... This symbol is in accordance with ANSI/IEEE std 91-1984 and IEC Publication 617-12. OPERATION The seven modes of operation for the SMJ27C256 are listed in Table 1. The read mode requires a single 5V supply. All inputs are TTL level except for V PP FUNCTION OUTPUT (PINS) READ ...
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... READ/OUTPUT DISABLE When the outputs of two or more SMJ27C256s are connected in parallel on the same bus, the output of any particular device in the circuit can be read with no interference from the competing outputs of the other devices. To read the output of the selected SMJ27C256, a low-level signal is applied to E\ and G\ ...
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... Address Pass No Address? Yes Compare All Bytes to Original Pass Device Passed = 13V PP = 100µs Increment Address W Last Program One Pulse = t Fail X = X+1 Byte Last = 5V ± 10% Fail Data UVEPROM SMJ27C256 Program Mode = 100µs W(E) 10? Interactive Mode Yes Device Failed Final Verification ...
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... 5. 13V PP TTL-Input Level V = 5.5V, E\= CMOS-Input Level V = 5.5V, E\= '27C256-15 E\= =5. '27C256- minimum, outputs '27C256-20 cycle open '27C256-25 UVEPROM SMJ27C256 MIN TYP MAX UNIT 4.5 5 5.5 6.25 6.5 6.75 V -0.6 CC 12.75 13 13. -0 -0.5 0.8 -0.5 0.2 11.5 13 -55 °C +125 °C . The deivce must not be inserted into or removed from the ...
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... TYP 1,2 TEST CONDITIONS see Figure 2 3 TEST 1, 2 CONDITIONS see Figure 2 3 MIN MAX UNIT 0 130 ns 150 ns UVEPROM SMJ27C256 MAX UNIT -15 -17 UNIT 1, 2 MIN MAX MIN MAX 150 170 150 170 -20 -25 -30 MIN MAX MIN MAX MIN MAX 200 ...
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... The AC testing inputs are driven at 2.4V for logic high and 0.4V for logic low. Timing measurements are made at 2V for logic high and 0.8V for logic low for both inputs and outputs. FIGURE 2. LOAD CIRCUIT AND VOLTAGE WAVEFORMS 2.08V R = 800 L Output Under Test 100 pF UVEPROM SMJ27C256 = 6.5 and MIN TYP MAX UNIT 0 µs 2 µ ...
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... FIGURE 3. READ-CYCLE TIMING FIGURE 4. PROGRAM-CYCLE TIMING (SNAP! PULSE PROGRAMMING) UVEPROM SMJ27C256 ...
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... SMD limits. *All measurements are in inches. MECHANICAL DEFINITION SMD SPECIFICATIONS MIN --- 0.014 0.045 0.008 --- 0.500 0.600 BSC 0.100 BSC 0.125 0.015 0.005 0.005 UVEPROM SMJ27C256 MAX 0.232 0.026 0.065 0.018 1.490 0.610 0.200 0.060 --- --- ...
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... ORDERING INFORMATION EXAMPLE: SMJ27C256-30JM Device Speed ns Number SMJ27C256 -15 SMJ27C256 -17 SMJ27C256 -20 SMJ27C256 -25 SMJ27C256 -30 *AVAILABLE PROCESSES M = Extended Temperature Range UVEPROM SMJ27C256 Package Operating Type Temp - +125 C ...
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... ASI TO DSCC PART NUMBER SMJ27C256-15JM SMJ27C256-17JM SMJ27C256-20JM SMJ27C256-25JM SMJ27C256-30JM * ASI part number is for reference only. Orders received referencing the SMD part number will be processed per the SMD. ** Parts are listed on SMD under the old Texas Instruments part number. ASI purchased this product line in November of 1999. ...