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M27C516-70XN1TR Datasheet(PDF) 9 Page - STMicroelectronics |
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M27C516-70XN1TR Datasheet(HTML) 9 Page - STMicroelectronics |
9 / 12 page On-Board Programming The M27C516 can be directly programmed in the application circuit. See the relevant Application Note AN620. Electronic Signature The Electronic Signature (ES) mode allows the reading out of a binary code from an EPROM that will identify its manufacturer and type. This mode is intended for use by programming equipment to automatically match the device to be programmed with its correspondingprogramming algorithm. The ES mode is functional in the 25 °C ± 5°C ambient temperature range that is required when program- ming the M27C516. To activate the ES mode, the programming equipmentmust force 11.5V to 12.5V on address line A9 of the M27C516. Two identifier bytes may then be sequenced from the device outputs by toggling address line A0 from VIL to VIH. All other address lines must be held at VIL during Electronic Signature mode. Byte 0 (A0=VIL) represents the manufacturer code and byte 1 (A0=VIH) the device identifier code. For the STMicroelectronics M27C516, these two identifier bytes are given in Table 4 and can be read-out on outputs Q0 to Q7. Speed -35 (1) 35 ns -45 (1) 45 ns -55 (2) 55 ns -70 (2) 70 ns -85 85 ns -10 100 ns VCC Tolerance blank ±10% X ±5% Package C PLCC44 N TSOP40 10 x 14mm Temperature Range 1 0 to 70 °C 6 –40 to 85 °C Option TR Tape & Reel Packing Example: M27C516 -70 X N 1 TR ORDERING INFORMATION SCHEME Notes: 1. High Speed, see AC Characteristics section for further information. 2. Speed obtained with a load capacitance of 60pF. For a list of availableoptions (Speed, Package, etc...) or for further information on any aspect of this device, please contact the STMicroelectronics Sales Office nearest to you. 9/12 M27C516 |
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