HAMAMATSU PHOTONICS K.K., Electron Tube Center 314-5, Shimokanzo, Toyooka-village, lwata-gun, Shizuoka-ken, 438-0193, Japan, Telephone: (81)539/62-5248, Fax: (81)539/62-2205 U.S.A : Hamamalsu Corporation: 360 Foothill Road, P. O. Box 6910, Bridgewater N J. 08807-0910, U.S A , Telephone: (1)908-231-0960, Fax: (1)908-231-1218 E-mail: usa@ hamamatsu.com Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49)8152-375-0, Fax: (49)8152-2658 E-mail: info@ hamamatsu de France: Hamamatsu Photonics France S A.R L.: 8, Rue du Saule Trapu, Pare du Moulin de Massy, 91882 Massy Cedex, France, Telephone: (33)1 69 53 71 00, Fax: (33)1 69 53 71 10 E-mail: infos@hamamatsu.fr United Kingdom: Hamamatsu Photonics UK Limited: 2 Howard Court, 10 Tewin Road Welwyn Garden City Hertfordshire AL7 1BW, United Kingdom, Telephone: 44-(0)1707-294888, Fax: 44(0)1707-325777 E-mail: info@hamamalsu.co uk
XC6204B311MR(4BOX) on stock A two-tier protection scheme is implemented to protect data against inadvertent clearing or writing. To write to the memory, an EWEN (Program/Erase Enable) must first be issued. The CAT35C704 will now allow program/ erase operations to be performed only on memory locations at or above the address set in the memory pointer. The remaining portion of the memory is still protected.To override this protection, an OVMPR (Over- ride Memory Pointer Register-see Memory Pointer Register) must be issued for every program/erase in- struction which accesses the protected area:
| AMBIENT TEMPERATURE (+A) = +250C IIIIII | | | |
| GAT | --TO-SOUR l | E0 | LTAGI | - (VG: | 1=5 | | | |
| | l -10V | | | | | r | | |
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| | ·15V | | | | | | | | |
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