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參數(shù)資料
| 型號： | 24AA32 |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | VCXO TCXO VCTCXO |
| 中文描述： | 32K的1.8VI 2二氧化碳智能串行EEPROM |
| 文件頁數(shù)： | 8/12頁 |
| 文件大小： | 98K |
| 代理商： | 24AA32 |
24AA32
DS21124C-page 8
1996 Microchip Technology Inc.
6.3
Contiguous Addressing Across
Multiple Devices
The device select bits A2, A1, A0 can be used to
expand the contiguous address space for up to 256K
bits by adding up to eight 24AA32's on the same bus.
In this case, software can use A0 of the control byte as
address bit A12, A1 as address bit A13, and A2 as
address bit A14.
6.4
Sequential Read
Sequential reads are initiated in the same way as a ran-
dom read except that after the 24AA32 transmits the
first data byte, the master issues an acknowledge as
opposed to the stop condition used in a random read.
This acknowledge directs the 24AA32 to transmit the
next sequentially addressed 8 bit word (Figure 6-3).
Following the final byte transmitted to the master, the
master will NOT generate an acknowledge but will gen-
erate a stop condition.
To provide sequential reads the 24AA32 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. The address pointer, however,
will not roll over from address 07FF to address 0000. It
will roll from 07FF to unused memory space.
6.5
Noise Protection
The SCL and SDA inputs have filter circuits which sup-
press noise spikes to ensure proper device operation
even on a noisy bus. All I/O lines incorporate Schmitt
triggers for 400 kHz (Fast Mode) compatibility.
FIGURE 6-2:
RANDOM READ
FIGURE 6-3:
SEQUENTIAL READ
SDA LINE
BUS
CONTROL
BYTE
WORD
ADDRESS (1)
S
T
O
P
S
T
A
R
T
A
C
K
A
C
K
A
C
K
ACTIVITY:
A
C
K
N
O
DATA n
0 0 0
WORD
ADDRESS (0)
S
T
A
R
T
CONTROL
BYTE
A
C
K
0
Control
Byte
Data n + 2
A
C
K
A
C
K
A
C
K
A
C
K
Bus Activity:
Master
SDA Line
Bus Activity
S
t
o
p
N
O
A
C
K
Data n + X
Data n + 1
Data n
相關PDF資料 |
PDF描述 |
|---|---|
| 24AA32-P | 32K 1.8V I 2 C O Smart Serial EEPROM |
| 24AA32-SN | 32K 1.8V I 2 C O Smart Serial EEPROM |
| 24AA32AT | 32KIC Serial EEPROM |
| 24AA32AX | 32KIC Serial EEPROM |
| 24AA32AXT | 32KIC Serial EEPROM |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| 24AA32A/P | 功能描述:電可擦除可編程只讀存儲器 4kx8 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 |
| 24AA32A/SM | 功能描述:電可擦除可編程只讀存儲器 4kx8 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 |
| 24AA32A/SN | 功能描述:電可擦除可編程只讀存儲器 4kx8 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 |
| 24AA32A/SNRVA | 制造商:Microchip Technology 功能描述:32K 4K X 8 1.8V SERIAL EE |
| 24AA32AF-I/MNY | 功能描述:電可擦除可編程只讀存儲器 32K 4K X 8 1.8V SERIAL EE IND 1/4AWP 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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