- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄371390 > 24AA01SN (Microchip Technology Inc.) 1K/2K 1.8V I 2 C O Serial EEPROMs PDF資料下載
參數(shù)資料
| 型號(hào)： | 24AA01SN |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 1K/2K 1.8V I 2 C O Serial EEPROMs |
| 中文描述： | 1K/2K 1.8VI 2二氧化碳串行EEPROM |
| 文件頁數(shù)： | 9/24頁 |
| 文件大小： | 338K |
| 代理商： | 24AA01SN |
2003 Microchip Technology Inc.
DS21711C-page 9
24AA01/24LC01B
7.0
READ OPERATION
Read operations are initiated in the same way as write
operations, with the exception that the R/W bit of the
slave address is set to ‘
1
’. There are three basic types
of read operations: current address read, random read
and sequential read.
7.1
Current Address Read
The 24XX01 contains an address counter that
maintains the address of the last word accessed,
internally incremented by ‘
1
’. Therefore, if the previous
access (either a read or write operation) was to
address
n
, the next current address read operation
would access data from address
n + 1
. Upon receipt of
the slave address with R/W bit set to ‘
1
’, the 24XX01
issues an acknowledge and transmits the 8-bit data
word. The master will not acknowledge the transfer but
does generate a Stop condition and the 24XX01
discontinues transmission (Figure 7-1).
7.2
Random Read
Random read operations allow the master to access
any memory location in a random manner. To perform
this type of read operation, the word address must first
be set. This is accomplished by sending the word
address to the 24XX01 as part of a write operation.
Once the word address is sent, the master generates a
Start condition following the acknowledge. This
terminates the write operation, but not before the inter-
nal address pointer is set. The master then issues the
control byte again, but with the R/W bit set to a ‘
1
’. The
24XX01 will then issue an acknowledge and transmits
the 8-bit data word. The master will not acknowledge
the transfer but does generate a Stop condition and the
24XX01 discontinues transmission (Figure 7-2).
7.3
Sequential Read
Sequential reads are initiated in the same way as a
random read, except that once the 24XX01 transmits
the first data byte, the master issues an acknowledge
(as opposed to a Stop condition in a random read). This
directs the 24XX01 to transmit the next sequentially
addressed 8-bit word (Figure 7-3).
To provide sequential reads the 24XX01 contains an
internal address pointer which is incremented by one at
the completion of each operation. This address pointer
allows the entire memory contents to be serially read
during one operation.
7.4
Noise Protection
The 24XX01 employs a V
CC
threshold detector circuit
which disables the internal erase/write logic if the V
CC
is below 1.5V at nominal conditions.
The SCL and SDA inputs have Schmitt Trigger and
filter circuits which suppress noise spikes to assure
proper device operation even on a noisy bus.
FIGURE 7-1:
CURRENT ADDRESS READ
S
P
BUS ACTIVITY
MASTER
SDA LINE
BUS ACTIVITY
S
T
O
P
CONTROL
BYTE
DATA (n)
A
C
K
N
O
A
C
K
S
T
A
R
T
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 24AA024 | 2K I2C⑩ Serial EEPROM |
| 24AA025 | 2K I2C⑩ Serial EEPROM |
| 24AA024_07 | 2K I2C⑩ Serial EEPROM |
| 24AA02IP | 1K/2K 1.8V I 2 C O Serial EEPROMs |
| 24AA01P | RAC15-SB(-E)(-ST) Series - Powerline Regulated AC-DC Converters; Output Voltage (Vdc): 12V; Features: Compact AC-DC Power Supply; 15 Watt PCB Mount Package; Universal Input Voltage Range; 4000VAC Isolation; Low Output Ripple and Noise; Short Circuit Protected; UL-60601 Certified for Medical Applications |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 24AA01T | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:1K I2C? Serial EEPROM |
| 24AA01T-/SM | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:I2C Serial EEPROM |
| 24AA01T/SN | 功能描述:電可擦除可編程只讀存儲(chǔ)器 128x8 - 1.8V 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 |
| 24AA01T-/SN | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:I2C Serial EEPROM |
| 24AA01T-E/LT | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:1K I2C? Serial EEPROM |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。