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參數(shù)資料
| 型號： | CAT24C21ZDRI-GT3 |
| 元件分類： | PROM |
| 英文描述： | 128 X 8 I2C/2-WIRE SERIAL EEPROM, DSO8 |
| 封裝： | 3 X 3 MM, ROHS COMPLIANT, TDSN-8 |
| 文件頁數(shù)： | 10/12頁 |
| 文件大?。?/td> | 104K |
| 代理商： | CAT24C21ZDRI-GT3 |
CAT24C21
7
Doc. No. MD-1032, Rev. P
Figure 6. Start/Stop Timing
Figure 7. Acknowledge Timing
ACKNOWLEDGE
1
START
SCL FROM
MASTER
89
DATA OUTPUT
FROM TRANSMITTER
DATA OUTPUT
FROM RECEIVER
Figure 8. Slave Address Bits
1
0
1
0
X
R/W
Page Write
The CAT24C21 writes up to 16 bytes of data in a single
write cycle, using the Page Write operation. The Page
Write operation (Figure 10) is initiated in the same
manner as the Byte Write operation, however instead of
terminating after the initial word is transmitted, the
Master is allowed to send up to fifteen additional bytes.
After each byte has been transmitted the CAT24C21 will
respond with an ACK, and internally increment the low
order address bits by one. The high order bits remain
unchanged.
If the Master transmits more than sixteen bytes prior to
sending the STOP condition, the address counter ‘wraps
around’, and previously transmitted data will be
overwritten.
Once all sixteen bytes are received and the STOP
condition has been sent by the Master, the internal
programming cycle begins. At this point all received data
is written to the CAT24C21 in a single write cycle.
Acknowledge Polling
The disabling of the inputs can be used to take advantage
of the typical write cycle time. Once the stop condition
is issued to indicate the end of the host’s write operation,
the CAT24C21 initiates the internal write cycle. ACK
polling can be initiated immediately.
This involves
issuing the start condition followed by the slave address
for a write operation. If the CAT24C21 is still busy with
the write operation, no ACK will be returned. If the
CAT24C21 has completed the write operation, an ACK
will be returned and the host can then proceed with the
next read or write operation.
START Bit
SDA
STOP Bit
SCL
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CAT24C21ZI | 制造商:Catalyst Semiconductor 功能描述: |
| CAT24C256HU4IGT3 | 功能描述:電可擦除可編程只讀存儲器 LOW-SATURATION VOLTAGE RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
| CAT24C256LGI | 制造商:Catalyst Semiconductor 功能描述: |
| CAT24C256LI | 制造商:Rochester Electronics LLC 功能描述: 制造商:Catalyst Semiconductor 功能描述: |
| CAT24C256LI-G | 功能描述:電可擦除可編程只讀存儲器 (32768x8) 256K RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率: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 安裝風格:SMD/SMT 封裝 / 箱體:SOIC-8 |
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