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参数资料
| 型号： | 24AA128-I/MS |
| 厂商： | Microchip Technology |
| 文件页数： | 9/38页 |
| 文件大小： | 0K |
| 描述： | IC EEPROM 128KBIT 400KHZ 8MSOP |
| 产品培训模块： | I2C Serial EEPROM |
| 标准包装： | 100 |
| 格式 - 存储器： | EEPROMs - 串行 |
| 存储器类型： | EEPROM |
| 存储容量： | 128K (16K x 8) |
| 速度： | 100kHz，400kHz |
| 接口： | I²C，2 线串口 |
| 电源电压： | 1.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-MSOP |
| 包装： | 管件 |
| 产品目录页面： | 1447 (CN2011-ZH PDF) |
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24AA128/24LC128/24FC128
FIGURE 6-1:
BYTE WRITE
Bus Activity
Master
S
T
A
R
T
Control
Byte
Address
High Byte
Address
Low Byte
Data
S
T
O
P
S 1 0 1 0 A A A 0
SDA Line
2 1 0
xx
P
Bus Activity
A
C
K
A
C
K
A
C
K
A
C
K
x = “don’t care” bit
FIGURE 6-2:
PAGE WRITE
Bus Activity
Master
S
T
A
R
T
Control
Byte
Address
High Byte
Address
Low Byte
Data Byte 0
Data Byte 63
S
T
O
P
S 1010 2 1 0 0
SDA Line
A A A
xx
P
Bus Activity
A
C
K
A
C
K
A
C
K
A
C
K
A
C
K
x = “don’t care” bit
7.0 ACKNOWLEDGE POLLING
Since the device will not acknowledge during a write
cycle, this can be used to determine when the cycle is
complete (This feature can be used to maximize bus
throughput). Once the Stop condition for a Write
command has been issued from the master, the device
initiates the internally timed write cycle. ACK polling
can be initiated immediately. This involves the master
FIGURE 7-1:
ACKNOWLEDGE
POLLING FLOW
Send
Write Command
sending a Start condition, followed by the control byte
for a Write command (R/W = 0 ). If the device is still
busy with the write cycle, then no ACK will be returned.
If no ACK is returned, the Start bit and control byte must
be resent. If the cycle is complete, then the device will
return the ACK and the master can then proceed with
the next Read or Write command. See Figure 7-1 for
Send Stop
Condition to
Initiate Write Cycle
Send Start
flow diagram.
Send Control Byte
with R/W = 0
? 2010 Microchip Technology Inc.
Did Device
Acknowledge
(ACK = 0 )?
Yes
Next
Operation
No
DS21191S-page 9
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相关代理商/技术参数 |
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| 24AA128IP | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:128K I 2 C ⑩ CMOS Serial EEPROM |
| 24AA128ISM | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:128K I 2 C ⑩ CMOS Serial EEPROM |
| 24AA128ISN | 制造商:MICROCHIP 制造商全称:Microchip Technology 功能描述:128K I 2 C ⑩ CMOS Serial EEPROM |
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| 24AA128SC/S15K | 制造商:Microchip Technology Inc 功能描述:128K I2C SMARTCARD EE DIE IN WAFFLE PK - Gel-pak, waffle pack, wafer, diced wafer on film |
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