参数资料
型号: SLA24C01-D-3/P
厂商: SIEMENS A G
元件分类: PROM
英文描述: The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
中文描述: 128 X 8 I2C/2-WIRE SERIAL EEPROM, PDIP8
封装: PLASTIC, DIP-8
文件页数: 15/27页
文件大小: 361K
代理商: SLA24C01-D-3/P
SLx 24C01/02/P
Semiconductor Group
22
1998-07-27
7.3
Protection Bit Read
The byte sequence for random bit read is shown in figure 17.
Figure 17
Byte Sequence for Protection Bit Read
The first command byte CSW followed by the control byte EEA addresses the protection
bit to be read. The second command byte CSW is followed by the control byte 00
H for
protection bit read. The first bit (MSB) of the transferred byte is the protection bit of the
addressed page. The other 7 bits are not valid. The page protection status is indicated
as following
Protection Bit = 1: A normal write operation changes the data in the associated page
Protection Bit = 0: The data in the associated page are protected against changes.
If the master acknowledges a byte with a low state of the SDA line, the protection bit of
the next page can be read as the first bit of the following byte. If the master releases the
SDA line, a STOP condition has to complete the read procedure. Any number of bytes
with a page protection status at the first bit position can be requested by the master. If
the bit of the uppermost page has been addressed, the counter has its overflow to the
lowest address according to the first page.
0
SDA Line
EEPROM
Bus Activity
Master
Bus Activity
EEA n
Address
EEPROM
CSW
Byte
Command
S
R
T
A
T
0
S
0
000
C
K
A
R
T
A
T
CSW
Byte
Command
S
Data
Byte n
0
C
K
A
CTR
Control
Byte
0
C
K
A
Data
Byte n+1
C
K
A
C
K
A
...
IED02139
P
C
K
A
O
P
T
S
b
K
C
A
b = Protection Bit
相关PDF资料
PDF描述
SLA24C01-D/P The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
SLE24C01-S/P The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
SLE24C02-D/P The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
SLE24C02-S/P The CAT24FC02 is a 2-kb Serial CMOS EEPROM internally organized as 256 words of 8 bits each
SLB1470R SLIDE SWITCH, SP4T, LATCHED, 0.3A, 30VDC, THROUGH HOLE-RIGHT ANGLE
相关代理商/技术参数
参数描述
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SLA24C01-S-3 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:1/2 Kbit 128/256 x 8 bit Serial CMOS EEPROMs, I2C Synchronous 2-Wire Bus
SLA24C01-S-3/P 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:1/2 Kbit 128/256 x 8 bit Serial CMOS EEPROMs, I2C Synchronous 2-Wire Bus
SLA24C02-D 制造商:Siemens 功能描述:256 X 8 I2C/2-WIRE SERIAL EEPROM, PDIP8