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參數(shù)資料
| 型號(hào)： | AT34C02-10PU-2.7 |
| 廠商： | ATMEL CORP |
| 元件分類： | PROM |
| 英文描述： | 256 X 8 I2C/2-WIRE SERIAL EEPROM, PDIP8 |
| 封裝： | 0.300 INCH, LEAD AND HALOGEN FREE, PLASTIC, MS-001BA, DIP-8 |
| 文件頁數(shù)： | 3/20頁 |
| 文件大小： | 295K |
| 代理商： | AT34C02-10PU-2.7 |
11
AT34C02
0958O–SEEPR–12/04
Figure 7. Setting Write Protect Register
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
operations: 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 operations as long as the chip power is maintained. The
address “roll over” during read is from the last byte of the last memory page to the first
byte of the first page.
Once the device address with the read/write select bit set to one is clocked in and
acknowledged by the EEPROM, the current address data word is serially clocked out.
To end the command, the microcontroller does not respond with an input zero but does
generate a following stop condition (see Figure 11 on page 13).
RANDOM READ: A random read requires a “dummy” byte write sequence to load in the
data word address. Once the device address word and data word address are clocked
WP Connected to GND or Floating
Start
R/W Bit
Write Protect Register
Acknowledgment
from Device
Action from Device
1010
R
X
ACK
Read Array
1010
W
Programmed
ACK
Can Write to Second Half (80H - FFH) Only
1010
W
Not Programmed
ACK
Can Write to Full Array
0110
R
Programmed
No ACK
Stop - Indicates Write Protect Register is Programmed
0110
R
Not Programmed
ACK
Read Out Data Don’t Care. Indicates WP Register is Not Prog
0110
W
Programmed
No ACK
Stop - Indicates Write Protect Register is Programmed
0110
W
Not Programmed
ACK
Program Write Protect Register (irreversible)
WP Connected to V
CC
1010
R
X
ACK
Read Array
1010
W
Programmed
ACK
Device Write Protect
1010
W
Not Programmed
ACK
Device Write Protect
0110
R
Programmed
No ACK
Stop - Indicates Write Protect Register is Programmed
0110
R
Not Programmed
ACK
Read Out Data Don’t Care. Indicates WP Register is Not Prog
0110
W
Programmed
No ACK
Stop - Indicates Write Protect Register is Programmed
0110
W
Not Programmed
ACK
Cannot Program Write Protect Register
S
T
A
R
T
S
T
O
P
SDA LINE
WORD
ADDRESS
DATA
CONTROL
BYTE
A
C
K
01 1 0
0
A
C
K
A
C
K
= Don't Care
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| AT34C02-10TC | 功能描述:IC EEPROM 2KBIT 400KHZ 8TSSOP RoHS:否 類別:集成電路 (IC) >> 存儲(chǔ)器 系列:- 標(biāo)準(zhǔn)包裝:378 系列:- 格式 - 存儲(chǔ)器:閃存 存儲(chǔ)器類型:FLASH 存儲(chǔ)容量:8M（1M x 8，512K x 16） 速度:110ns 接口:并聯(lián) 電源電壓:2.7 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:48-CBGA 供應(yīng)商設(shè)備封裝:48-CBGA（7x7） 包裝:托盤 |
| AT34C02-10TC-1.8 | 功能描述:IC EEPROM 2KBIT 400KHZ 8TSSOP RoHS:否 類別:集成電路 (IC) >> 存儲(chǔ)器 系列:- 標(biāo)準(zhǔn)包裝:378 系列:- 格式 - 存儲(chǔ)器:閃存 存儲(chǔ)器類型:FLASH 存儲(chǔ)容量:8M（1M x 8，512K x 16） 速度:110ns 接口:并聯(lián) 電源電壓:2.7 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:48-CBGA 供應(yīng)商設(shè)備封裝:48-CBGA（7x7） 包裝:托盤 |
| AT34C02-10TC-2.7 | 功能描述:IC EEPROM 2KBIT 400KHZ 8TSSOP RoHS:否 類別:集成電路 (IC) >> 存儲(chǔ)器 系列:- 標(biāo)準(zhǔn)包裝:378 系列:- 格式 - 存儲(chǔ)器:閃存 存儲(chǔ)器類型:FLASH 存儲(chǔ)容量:8M（1M x 8，512K x 16） 速度:110ns 接口:并聯(lián) 電源電壓:2.7 V ~ 3.6 V 工作溫度:-40°C ~ 85°C 封裝/外殼:48-CBGA 供應(yīng)商設(shè)備封裝:48-CBGA（7x7） 包裝:托盤 |
| AT34C0210TC27SL514 | 制造商:Atmel Corporation 功能描述:2K 2 WIRE SERIALS |
| AT34C02-10TE-2.7 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Two-wire Serial EEPROM with Permanent Software Write Protect |
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