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參數(shù)資料
| 型號： | HT24LC02 |
| 廠商： | Holtek Semiconductor Inc. |
| 英文描述： | 2K-Bit 2-Wire Serial Interface CMOS Serial EEPROM(2K位、2線接口、 CMOS串行EEPROM) |
| 中文描述： | 的2K位2線串行接口的CMOS串行EEPROM（2K位，2線接口，串行EEPROM中的CMOS） |
| 文件頁數(shù)： | 6/8頁 |
| 文件大?。?/td> | 94K |
| 代理商： | HT24LC02 |
HT24LC02
6
November 16, 2000
Write protect
The HT24LC02 can be used as a serial ROM
when the WP pin is connected to VCC. Pro-
gramming will be inhibited and the entire
memory will be write-protected.
Read operations
Read operations are initiated the same way
as write operations with the exception that
the read/write select bit in the device address
word is set to one. There are three read opera-
tions: current address read, random address
read and sequential read.
Current address read
The internal data word address counter
maintains the last address accessed during
the last read or write operation, incremented
by one. This address stays valid between op-
erations as long as the chip power is main-
tained. The address roll over during read
from the last byte of the last memory page to
the first byte of the first page. The address
roll over during write from the last byte of the
current page to the first byte of the same
page. Once the device address with the
read/write select bit set to one is clocked in
and acknowledged by the EEPROM, the cur-
rent address data word is serially clocked out.
The microcontroller does not respond with an
input zero but generates a following stop con-
dition (refer to Current read timing).
Random read
A random read requires a dummy byte write
sequence to load in the data word address
which is then clocked in and acknowledged by
the EEPROM. The microcontroller must then
generate another start condition. The
microcontroller now initiates a current ad-
dress read by sending a device address with
the read/write select bit high. The EEPROM
acknowledges the device address and serially
clocks out the data word. The microcontroller
does not respond with a zero but does gener-
ates a following stop condition (refer to Ran-
dom read timing).
! )
)
( !
! ). ) !
)
( )
! )(
! )
/ 0 ) '
7
8
4 7 9 :
; 6 ) . (
;
, "
Acknowledge polling flow
2 ) ( ! ! " "
3
4
.
(
; ) 4
# ! )
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| HT24LC02(8DIP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EEPROM |
| HT24LC02(8SOP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EEPROM |
| HT24LC02(8TSSOP) | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:EEPROM |
| HT24LC02(SOP) | 制造商:Holtek Semiconductor Inc 功能描述:CMOS 2K 2-WIRE SERIAL EEPROM, SO8 |
| HT24LC02_10 | 制造商:HOLTEK 制造商全稱:Holtek Semiconductor Inc 功能描述:CMOS 2K 2-Wire Serial EEPROM |
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