MIL-M-38510-207 Microcircuit, Digital, 256-Bit, Schottky, Bipolar, Programmable Read-Only Memory Prom, Monolithic SiliconThis specification covers the detail requirements for monolithic silicon, PROM microcircuits which employ thin film nichrome NiCr resistors, tungsten W, titanium tungsten TiW, or zapped vertical emitter ZVE as the fusible link or programming element. Two product assurance classes and a choice of case outlines and lead material and finishes are provided for each type and are reflected in the complete part number. For this product, the requirements of MIL-M-38510 have been superseded by MIL-PRF-38535, see 6.4.

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MIL-M-38510/207E

NOTES:

1. All other waveform characteristics shall be as specified in tables IVH.

2. Programming verification at both high and low VCC margins is optional. For convenience, verification can also be executed at the operating VCC limits specified in the dc characteristics.

FIGURE 5E. Typical programming voltage waveforms during programming for circuit H.