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參數(shù)資料
| 型號(hào)： | CAT25C16YE-GT3 |
| 英文描述： | 8K/16K SPI Serial CMOS EEPROM |
| 中文描述： | 8K/16K SPI串行EEPROM中的CMOS |
| 文件頁(yè)數(shù)： | 6/16頁(yè) |
| 文件大小： | 550K |
| 代理商： | CAT25C16YE-GT3 |
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6
CAT25C08/16
Doc. No. 1016, Rev. C
2006 by Catalyst Semiconductor, Inc.
Characteristics subject to change without notice
Figure 2. WREN Instruction Timing
Figure 3. WRDI Instruction Timing
Note: Dashed Line= mode (1, 1)
–
– – – –
SCK
SI
CS
SO
0
0
0
0
0
1
1
0
HIGH IMPEDANCE
SCK
SI
CS
SO
0
0
0
0
0
1
0
0
HIGH IMPEDANCE
Note: Dashed Line= mode (1, 1)
–
– – – –
STATUS REGISTER
The Status Register indicates the status of the device.
The
RDY
(Ready) bit indicates whether the CAT25C08/
16 is busy with a write operation. When set to 1 a write
cycle is in progress and when set to 0 the device
indicates it is ready. This bit is read only. The WEL
(Write Enable) bit indicates the status of the write
enable latch. When set to 1, the device is in a Write
Enable state and when set to 0 the device is in a Write
Disable state. The WEL bit can only be set by the
WREN instruction and can be reset by the WRDI
instruction.
The BP0 and BP1 (Block Protect) bits indicate which
blocks are currently protected. These bits are set by the
user issuing the WRSR instruction. The user is allowed
to protect quarter of the memory, half of the memory or
the entire memory by setting these bits. Once protected
the user may only read from the protected portion of the
array. These bits are non-volatile.
The WPEN (Write Protect Enable) is an enable bit for
the
WP
pin. The
WP
pin and WPEN bit in the status
register control the programmable hardware write pro-
tect feature. Hardware write protection is enabled when
WP
is low and WPEN bit is set to high. The user cannot
write to the status register, (including the block protect
WP
:
Write Protect
WP
is the Write Protect pin. The Write Protect pin will
allow normal read/write operations when held high.
When
WP
is tied low and the WPEN bit in the status
register is set to
“
1
”
, all write operations to the status
register are inhibited.
WP
going low while
CS
is still low
will interrupt a write to the status register. If the internal
write cycle has already been initiated,
WP
going low will
have no effect on any write operation to the status
register. The
WP
pin function is blocked when the WPEN
bit is set to 0. Figure 10 illustrates the
WP
timing
sequence during a write operation.
HOLD
:
Hold
HOLD
is the HOLD pin. The
HOLD
pin is used to pause
transmission to the CAT25C08/16 while in the middle of
a serial sequence without having to re-transmit entire
sequence at a later time. To pause,
HOLD
must be
brought low while SCK is low. The SO pin is in a high
impedance state during the time the part is paused, and
transitions on the SI pins will be ignored. To resume
communication,
HOLD
is brought high, while SCK is low.
HOLD
should be held high any time this function is not
being used.
HOLD
may be tied high directly to V
CC
or
tied to V
CC
through a resistor. Figure 9 illustrates hold
timing sequence.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CAT25C16YI | 功能描述:電可擦除可編程只讀存儲(chǔ)器 (2048x8) 16K RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT25C16YI-1.8 | 功能描述:電可擦除可編程只讀存儲(chǔ)器 (2048x8) 16K RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT25C16YI-26630 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT25C16YI-26630T | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT25C16YI-G | 功能描述:電可擦除可編程只讀存儲(chǔ)器 (2048x8) 16K 2.5-5.5 RoHS:否 制造商:Atmel 存儲(chǔ)容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時(shí)鐘頻率:1000 KHz 最大工作電流:6 uA 工作電源電壓:1.7 V to 5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOIC-8 |
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