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SST29EE010-250-4C-NH 데이터시트(PDF) 4 Page - Silicon Storage Technology, Inc |
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SST29EE010-250-4C-NH 데이터시트(HTML) 4 Page - Silicon Storage Technology, Inc |
4 / 26 page 4 © 2000 Silicon Storage Technology, Inc. 304-3 6/00 1 Megabit Page-Mode EEPROM SST29EE010 / SST29LE010 / SST29VE010 FUNCTIONAL BLOCK DIAGRAM OF SST29EE010/29LE010/29VE010 Single power supply reprogrammable nonvolatile memo- ries may be unintentionally altered. SST strongly recom- mends that Software Data Protection (SDP) always be enabled. The SST29EE010/29LE010/29VE010 should be programmed using the SDP command sequence. SST recommends the SDP Disable Command Sequence not be issued to the device prior to writing. Please refer to the following Application Notes located at the back of this databook for more information on using SDP: • Protecting Against Unintentional Writes When Using Single Power Supply Flash Memories • The Proper Use of JEDEC Standard Software Data Protection Product Identification The product identification mode identifies the device as the SST29EE010/29LE010/29VE010 and manufacturer as SST. This mode may be accessed by hardware or software operations. The hardware operation is typically used by a programmer to identify the correct algorithm for the SST29EE010/29LE010/29VE010. Users may wish to use the software product identification operation to identify the part (i.e. using the device code) when using multiple manufacturers in the same socket. For details, see Table 3 for hardware operation or Table 4 for software operation, Figure 10 for the software ID entry and read timing diagram and Figure 17 for the ID entry command sequence flowchart. The manufacturer and device codes are the same for both operations. Product Identification Mode Exit In order to return to the standard read mode, the Software Product Identification mode must be exited. Exiting is accomplished by issuing the Software ID Exit (reset) operation, which returns the device to the Read operation. The Reset operation may also be used to reset the device to the Read mode after an inadvertent transient condition that apparently causes the device to behave abnormally, e.g. not read correctly. See Table 4 for software command codes, Figure 11 for timing wave- form and Figure 17 for a flowchart. 304 PGM T1.2 TABLE 1: PRODUCT IDENTIFICATION TABLE Byte Data Manufacturer’s ID 0000 H BF H SST29EE010 Device ID 0001 H 07 H SST29LE010 Device ID 0001 H 08 H SST29VE010 Device ID 0001 H 08 H Y-Decoder and Page Latches I/O Buffers and Data Latches 304 ILL B1.0 Address Buffer & Latches X-Decoder DQ7 - DQ0 A16 - A0 WE# OE# CE# 1,048,576 Bit EEPROM Cell Array Control Logic |
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