參數(shù)資料
型號(hào)： CAT25128YI-GT2
廠商： ON SEMICONDUCTOR
元件分類： PROM
英文描述： 16K X 8 SPI BUS SERIAL EEPROM, PDSO8
封裝： 4.40 X 3 MM, HALOGEN FREE AND ROHS COMPLIANT, MO-153, TSSOP-8
文件頁(yè)數(shù)： 14/16頁(yè)
文件大?。?/td> 172K
代理商： CAT25128YI-GT2
CAT25128
http://onsemi.com
7
Byte Write
Once the WEL bit is set, the user may execute a write
sequence, by sending a WRITE instruction, a 16bit address
and data as shown in Figure 5. Only 14 significant address
bits are used by the CAT25128. The rest are don’t care bits,
as shown in Table 11. Internal programming will start after
the low to high CS transition. During an internal write cycle,
all commands, except for RDSR (Read Status Register) will
be ignored. The RDY bit will indicate if the internal write
cycle is in progress (RDY high), or the device is ready to
accept commands (RDY low).
Page Write
After sending the first data byte to the CAT25128, the host
may continue sending data, up to a total of 64 bytes,
according to timing shown in Figure 6. After each data byte,
the lower order address bits are automatically incremented,
while the higher order address bits (page address) remain
unchanged. If during this process the end of page is
exceeded, then loading will “roll over” to the first byte in the
page, thus possibly overwriting previously loaded data.
Following completion of the write cycle, the CAT25128 is
automatically returned to the write disable state.
Table 11. BYTE ADDRESS
Device
Address Significant Bits
Address Don’t Care Bits
# Address Clock Pulses
CAT25128
A13 A0
A15 A14
16
Figure 5. Byte WRITE Timing
SCK
SI
SO
00
0
1
0
D7 D6 D5 D4 D3 D2 D1 D0
012
345
67
8
OPCODE
DATA IN
HIGH IMPEDANCE
BYTE ADDRESS*
21 22 23 24 25 26 27 28 29 30 31
Dashed Line = mode (1, 1)
CS
A0
AN
0
* Please check the Byte Address Table (Table 11)
Figure 6. Page WRITE Timing
SCK
SI
SO
00
0
1
0
BYTE ADDRESS*
Data
Byte 1
0123
456
78
21 22 23 2431 3239
Data Byte N
OPCODE
7..1
0
24+(N1)x81 .. 24+(N1)x8
24+Nx81
DATA IN
HIGH IMPEDANCE
Dashed Line = mode (1, 1)
CS
AN
A0
Data
Byte 3
Data
Byte 2
0
* Please check the Byte Address Table (Table 11)
相關(guān)PDF資料
PDF描述
CAT25C03GZ-1.8TE13 256 X 8 SPI BUS SERIAL EEPROM, PDSO8
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CAT25C03GZA 256 X 8 SPI BUS SERIAL EEPROM, PDSO8
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