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參數(shù)資料
| 型號(hào)： | 24AA32A-P |
| 廠商： | Microchip Technology Inc. |
| 英文描述： | 32K 1.8V I 2 C O Serial EEPROM |
| 中文描述： | 32K的1.8VI 2二氧化碳串行EEPROM |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 79K |
| 代理商： | 24AA32A-P |
24AA32A
DS21162B-page 6
Preliminary
1996 Microchip Technology Inc.
4.0
WRITE OPERATION
4.1
Byte Write
Following the start condition from the master, the con-
trol code (four bits), the device select (three bits), and
the R/W bit which is a logic low are clocked onto the bus
by the master transmitter. This indicates to the
addressed slave receiver that a byte with a word
address will follow after it has generated an acknowl-
edge bit during the ninth clock cycle. Therefore, the next
byte transmitted by the master is the high-order byte of
the word address and will be written into the address
pointer of the 24AA32A. The next byte is the least sig-
nificant address byte. After receiving another acknowl-
edge signal from the 24AA32A the master device will
transmit the data word to be written into the addressed
memory location.
The 24AA32A acknowledges again and the master
generates a stop condition. This initiates the internal
write cycle, and during this time the 24AA32A will not
generate acknowledge signals (Figure 4-1).
4.2
Page Write
The write control byte, word address and the first data
byte are transmitted to the 24AA32A in the same way
as in a byte write. But instead of generating a stop con-
dition, the master transmits up to 32 bytes which are
temporarily stored in the on-chip page buffer and will be
written into memory after the master has transmitted a
stop condition. After receipt of each word, the five lower
address pointer bits are internally incremented by one.
If the master should transmit more than 32 bytes prior
to generating the stop condition, the address counter
will roll over and the previously received data will be
overwritten. As with the byte write operation, once the
stop condition is received, an internal write cycle will
begin. (Figure 4-2).
FIGURE 4-1:
BYTE WRITE
FIGURE 4-2:
PAGE WRITE
0 0 0 0
BUS ACTIVITY
MASTER
SDA LINE
BUS ACTIVITY
S
T
A
R
T
CONTROL
BYTE
ADDRESS
HIGH BYTE
ADDRESS
LOW BYTE
DATA
A
C
K
A
C
K
A
C
K
A
C
K
S
T
O
P
0 0 0 0
BUS ACTIVITY
MASTER
SDA LINE
BUS ACTIVITY
S
T
A
R
T
CONTROL
BYTE
ADDRESS
HIGH BYTE
ADDRESS
LOW BYTE
DATA BYTE 0
A
C
K
A
C
K
A
C
K
A
C
K
S
T
O
P
DATA BYTE 31
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PDF描述 |
|---|---|
| 24AA32A-SM | 32K 1.8V I 2 C O Serial EEPROM |
| 24AA32A-SN | 32K 1.8V I 2 C O Serial EEPROM |
| 24AA32A-24LC32A | 32K I2C Serial EEPROM |
| 24AA32 | VCXO TCXO VCTCXO |
| 24AA32-P | 32K 1.8V I 2 C O Smart Serial EEPROM |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 24AA32ASC-I/S16K | 制造商:Microchip Technology Inc 功能描述:32K I2C SMARTCARD EE DIE IN WAFFLE PK - Gel-pak, waffle pack, wafer, diced wafer on film |
| 24AA32ASC-I/W16K | 制造商:Microchip Technology Inc 功能描述:32K I2C SMARTCARD EE WAFER - Gel-pak, waffle pack, wafer, diced wafer on film |
| 24AA32ASC-I/WF16K | 制造商:Microchip Technology Inc 功能描述:32K I2C SMARTCARD EE WFR ON FR - Gel-pak, waffle pack, wafer, diced wafer on film |
| 24AA32AT/SM | 功能描述:電可擦除可編程只讀存儲(chǔ)器 4kx8 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 |
| 24AA32AT/SN | 功能描述:電可擦除可編程只讀存儲(chǔ)器 4kx8 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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