參數(shù)資料
型號(hào)： HN58X24128
廠商： Hitachi,Ltd.
英文描述： Two-wire serial interface 128k EEPROM (16kword ×8-bit)(二線串行接口 128k EEPROM(16k字 ×8位))
中文描述： 兩線串行接口128K的EEPROM中（16kword × 8位）（128K的二線串行接口的EEPROM（16K的字× 8位））
文件頁(yè)數(shù)： 10/20頁(yè)
文件大?。?/td> 113K
代理商： HN58X24128
HN58X24128/HN58X24256
10
Acknowledge Timing Waveform
SCL
SDA IN
SDA OUT
1
2
8
9
Acknowledge
out
Device Addressing
The EEPROM device requires an 8-bit device address word following a start condition to enable the chip
for a read or a write operation. The device address word consists of 4-bit device code, 3-bit device address
code and 1-bit read/write(R/W) code. The most significant 4-bit of the device address word are used to
distinguish device type and this EEPROM uses “1010” fixed code. The device address word is followed by
the 3-bit device address code in the order of A2, A1, A0. The device address code selects one device out of
all devices which are connected to the bus. This means that the device is selected if the inputted 3-bit
device address code is equal to the corresponding hard-wired A2-A0 pin status. The eighth bit of the
device address word is the read/write(R/W) bit. A write operation is initiated if this bit is low and a read
operation is initiated if this bit is high. Upon a compare of the device address word, the EEPROM enters
the read or write operation after outputting the zero as an acknowledge. The EEPROM turns to a stand-by
state if the device code is not “1010” or device address code doesn’t coincide with status of the correspond
hard-wired device address pins A0 to A2.
Device Address Word
Device address word (8-bit)
Device code (fixed)
Device address code
R/W code*
1
128k, 256k
Note: 1.
R/W=“1” is read and R/W = “0” is write.
1
0
1
0
A2
A1
A0
R/W
相關(guān)PDF資料
PDF描述
HN58X24256 Two-wire serial interface 256k EEPROM (32kword ×8-bit)(二線串行接口 256k EEPROM(32k字 ×8位))
HN58X2416 Two-wire serial interface 2k / 4k / 8k / 16k / 32k / 64k EEPROM(8-kword x 8-bit)
HN58X2432 Two-wire serial interface 2k / 4k / 8k / 16k / 32k / 64k EEPROM(8-kword x 8-bit)
HN58X2464 Two-wire serial interface 2k / 4k / 8k / 16k / 32k / 64k EEPROM(8-kword x 8-bit)
HN58X24256I Two-wire serial interface 256k EEPROM (32kword ×8-bit)(二線串行接口 256k EEPROM(32k字 ×8位))
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HN58X24128FP 制造商:未知廠家 制造商全稱:未知廠家 功能描述:I2C Serial EEPROM
HN58X24128FPI 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Two-wire serial interface, 128k EEPROM (16-kword x 8-bit), 256k EEPROM (32-kword x 8-bit)
HN58X24128FPIAG 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Two-wire serial interface 128k EEPROM (16-kword ′ 8-bit) 256k EEPROM (32-kword ′ 8-bit)
HN58X24128FPIAGHN58X24256FPIAG 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
HN58X24128FPIE 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:Two-wire serial interface 128k EEPROM (16-kword × 8-bit) 256k EEPROM (32-kword × 8-bit)
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