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AT17LV040-10JC Datasheet(PDF) 6 Page - ATMEL Corporation |
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AT17LV040-10JC Datasheet(HTML) 6 Page - ATMEL Corporation |
6 / 24 page 6 AT17LV65/128/256/512/010/002/040 2321E–CNFG–06/03 DATA Three-state DATA output for configuration. Open-collector bi-directional pin for programming. CLK Clock input. Used to increment the internal address and bit counter for reading and programming. WP1 WRITE PROTECT (1). Used to protect portions of memory during programming. Dis- abled by default due to internal pull-down resistor. This input pin is not used during FPGA loading operations. This pin is only available on AT17LV512/010/002 devices. RESET/OE Output Enable (active High) and RESET (active Low) when SER_EN is High. A Low level on RESET/OE resets both the address and bit counters. A High level (with CE Low) enables the data output driver. The logic polarity of this input is programmable as either RESET/OE or RESET/OE. For most applications, RESET should be programmed active Low. This document describes the pin as RESET/OE. WP Write protect (WP) input (when CE is Low) during programming only (SER_EN Low). When WP is Low, the entire memory can be written. When WP is enabled (High), the lowest block of the memory cannot be written. This pin is only available on AT17LV65/128/256 devices. WP2 WRITE PROTECT (2). Used to protect portions of memory during programming. Dis- abled by default due to internal pull-down resistor. This input pin is not used during FPGA loading operations. This pin is only available on AT17LV512/010 devices. Pin Description Name I/O AT17LV65/ AT17LV128/ AT17LV256 AT17LV512/ AT17LV010 AT17LV002 AT17LV040 8 DIP/ LAP/ SOIC 20 PLCC 20 SOIC 8 DIP/ LAP 20 PLCC 20 SOIC 8 DIP/ LAP/ SOIC 20 PLCC 20 SOIC 44 PLCC 44 TQFP 44 PLCC 44 TQFP DATA I/ O 1 221 211 212 40 2 40 CLK I 2 442 432 435 43 5 43 WP1 I – ––– 5–– 5–– ––– RESET/OE I 3 663 683 68 19 13 19 13 WP2 I – 7–– 7–– ––– CE I 4 8 8 4 8 10 4 8 1021152115 GND 5 10 10 5 10 11 5 10 11 24 18 24 18 CEO O 614 14 6 14 13 614 13 27 21 27 21 A2 I – – READY O – – – – 15 – – 15 – 29232923 SER_EN I 7 17 17 7 17 18 7 17 18 41 35 41 35 V CC 8 2020 8 20 20 8 202044384438 |
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