전자부품 데이터시트 검색엔진 |
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TC58512FT 데이터시트(PDF) 21 Page - Toshiba Semiconductor |
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TC58512FT 데이터시트(HTML) 21 Page - Toshiba Semiconductor |
21 / 43 page TC58512FT 2001-03-05 21/43 Schematic Cell Layout and Address Assignment The Program operation works on page units while the Erase operation works on block units. A page consists of 528 bytes in which 512 bytes are used for main memory storage and 16 bytes are for redundancy or for other uses. 1 page = 528 bytes 1 block = 528 bytes ´ 32 pages = (16K + 512) bytes Capacity = 528 bytes ´ 32 pages ´ 4096 blocks An address is read in via the I/O port over four consecutive clock cycles, as shown in Table 1. Table 1. Addressing I/O8 I/O7 I/O6 I/O5 I/O4 I/O3 I/O2 I/O1 First cycle A7 A6 A5 A4 A3 A2 A1 A0 Second cycle A16 A15 A14 A13 A12 A11 A10 A9 Third cycle A24 A23 A22 A21 A20 A19 A18 A17 Fourth cycle *L *L *L *L *L *L *L A25 A0 to A7 : Column address A9 to A25 : Page address A14 to A25 : Block address A9 to A13 : NAND address in block * : A8 is automatically set to Low or High by a 00H command or a 01H command. * : l/O2 to l/O8 must be set to Low in the fourth cycle. Operation Mode: Logic and Command Tables The operation modes such as Program, Erase, Read and Reset are controlled by the fourteen different command operations shown in Table 3. Address input, command input and data input/output are controlled by the CLE, ALE, CE , WE , RE and WP signals, as shown in Table 2. Table 2. Logic Table CLE ALE CE WE RE WP Command Input H L L H * Data Input L L L H * Address Input L H L H * Serial Data Output L L L H * During Programming (Busy) * * * * * H During Erasing (Busy) * * * * * H Program, Erase Inhibit * * * * * L H: VIH, L: VIL, *: VIH or VIL 16 512 I/O1 I/O8 8I/O 528 131072 pages 4096 blocks Figure 2. Schematic Cell Layout 32 pages 1 block |
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