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CAT25C64U20A-1.8TE13 データシート(PDF) 9 Page - Catalyst Semiconductor |
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CAT25C64U20A-1.8TE13 データシート(HTML) 9 Page - Catalyst Semiconductor |
9 / 9 page 9 CAT25C32/64 Doc No. 25087 -00 8/99 SPI-1 Advanced Information Figure 9. HOLD HOLD HOLD HOLD HOLD Timing DESIGN CONSIDERATIONS CAT25C32/64 goes into a write disable mode. CS must be set high after the proper number of clock cycles to start an internal write cycle. Access to the array during an internal write cycle is ignored and program-ming is continued. On power up, SO is in a high impedance. Figure 8. Page Write Instruction Timing The CAT25C32/64 powers up in a write disable state and in a low power standby mode. A WREN instruction must be issued to perform any writes to the device after power up. Also,on power up CS should be brought low to enter a ready state and receive an instruction. After a successful byte/page write or status register write the Notes: (1) The device used in the above example is a 25C64SI-1.8TE13 (SOIC, Industrial Temperature, 1.8 Volt to 6 Volt Operating Voltage, Tape & Reel) ORDERING INFORMATION Note: Dashed Line = mode (1, 1) – – – – Note: Dashed Line= mode (1, 1) — — — — SK SI SO 0 0 0 0 0 0 1 0 ADDRESS Data Byte 1 012345678 21 22 23 24-31 32-39 Data Byte 2 Data Byte 3 Data Byte N CS OPCODE 7..1 0 24+(N-1)x8-1..24+(N-1)x8 24+Nx8-1 DATA IN HIGH IMPEDANCE CS SCK HOLD SO tCD tHD tHD tCD tLZ tHZ HIGH IMPEDANCE Package P = 8-Pin PDIP S = 8-Pin SOIC U14= 14-Pin TSSOP U20 = 20-Pin TSSOP Prefix Device # Suffix 25C64 S I TE13 Product Number 25C32: 32K 25C64: 64K Tape & Reel TE13: 2000/Reel Operating Voltage Blank = 2.5 to 6.0V 1.8 = 1.8 to 6.0V -1.8 CAT Temperature Range Blank = Commercial (0˚C to +70˚C) I = Industrial (-40˚C to +85˚C) A = Automotive (-40˚ to +105˚C)* * -40˚C to +125˚C is available upon request Optional Company ID |
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