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SST28SF040A-120-4I-PH Datasheet(PDF) 4 Page - Silicon Storage Technology, Inc |
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SST28SF040A-120-4I-PH Datasheet(HTML) 4 Page - Silicon Storage Technology, Inc |
4 / 24 page 4 Data Sheet 4 Mbit SuperFlash EEPROM SST28SF040A / SST28VF040A ©2001 Silicon Storage Technology, Inc. S71077-04-000 6/01 310 Successive Reads An Alternative means for determining an end of a write operation is by reading the same address for two consecu- tive data matches. Product Identification The Product Identification mode identifies the device as SST28SF/VF040A and the manufacturer as SST. This mode may be accessed by hardware and software opera- tions. The hardware operation is typically used by an exter- nal programmer to identify the correct algorithm for the SST28SF/VF040A. Users may wish to use the software operation to identify the device (i.e., using the device ID). For details see Table 3 for the hardware operation and Fig- ure 19 for the software operation. The manufacturer and device IDs are the same for both operations. FIGURE 1: PIN ASSIGNMENTS FOR 32-LEAD PLCC TABLE 1: PRODUCT IDENTIFICATION Address Data Manufacturer’s ID 0000H BFH Device ID SST28SF/VF040A 0001H 04H T1.1 310 Y-Decoder I/O Buffers and Data Latches 310 ILL B1.1 Address Buffer & Latches X-Decoder DQ7 - DQ0 A18 - A0 WE# OE# CE# SuperFlash Memory Control Logic FUNCTIONAL BLOCK DIAGRAM 5 6 7 8 9 10 11 12 13 29 28 27 26 25 24 23 22 21 A7 A6 A5 A4 A3 A2 A1 A0 DQ0 A14 A13 A8 A9 A11 OE# A10 CE# DQ7 4 3 2 1 32 31 30 32-lead PLCC Top View 310 ILL F02.3 14 15 16 17 18 19 20 |
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