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參數(shù)資料
| 型號： | CAT24WC257J-3TE13REVA |
| 元件分類： | PROM |
| 英文描述： | 32K X 8 I2C/2-WIRE SERIAL EEPROM, PDSO8 |
| 封裝： | SOIC-8 |
| 文件頁數(shù)： | 4/10頁 |
| 文件大?。?/td> | 408K |
| 代理商： | CAT24WC257J-3TE13REVA |
CAT24WC257
3
Doc. No. 1030, Rev. D
Power-Up Timing (2)(3)
Symbol
Parameter
Min
Typ
Max
Units
tPUR
Power-Up to Read Operation
1
ms
tPUW
Power-Up to Write Operation
1
ms
Note:
(1) AC measurement conditions:
RL (connects to VCC): 0.3VCC to 0.7 VCC
Input rise and fall times: < 50ns
Input and output timeing reference voltages: 0.5 VCC
(2) This parameter is tested initially and after a design or process change that affects the parameter.
(3) tPUR and tPUW are the delays required from the time VCC is stable until the specified operation can be initiated.
The write cycle time is the time from a valid stop
condition of a write sequence to the end of the internal
program/erase cycle. During the write cycle, the bus
interface circuits are disabled, SDA is allowed to remain
high, and the device does not respond to its slave
address.
A.C. CHARACTERISTICS
VCC = +1.8V to +6V, unless otherwise specified
Output Load is 1 TTL Gate and 100pF
Read & Write Cycle Limits
Symbol
Parameter
VCC=1.8V - 6.0V VCC=2.5V - 6.0V VCC=3.0V - 5.5V
Min
Max
Min
Max
Min
Max
Units
FSCL
Clock Frequency
100
400
1000
kHz
tAA
SCL Low to SDA Data Out
0.1
3.5
0.05
0.9
0.05
0.55
s
and ACK Out
tBUF(1)
Time the Bus Must be Free Before
4.7
1.2
0.5
s
a New Transmission Can Start
tHD:STA
Start Condition Hold Time
4.0
0.6
0.25
s
tLOW
Clock Low Period
4.7
1.2
0.6
s
tHIGH
Clock High Period
4.0
0.6
0.4
s
tSU:STA
Start Condition Setup Time
4.0
0.6
0.25
s
(for a Repeated Start Condition)
tHD:DAT
Data In Hold Time
0
ns
tSU:DAT
Data In Setup Time
100
ns
tR(1)
SDA and SCL Rise Time
1.0
0.3
s
tF(1)
SDA and SCL Fall Time
300
100
ns
tSU:STO
Stop Condition Setup Time
4.7
0.6
0.25
s
tDH
Data Out Hold Time
100
50
ns
tWR
Write Cycle Time
10
ms
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CAT24WC257K | 功能描述:電可擦除可編程只讀存儲器 (768x8) 256k 32 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率: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 |
| CAT24WC257K-1.8 | 功能描述:電可擦除可編程只讀存儲器 (768x8) 256k 32 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率: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 |
| CAT24WC257KA | 功能描述:電可擦除可編程只讀存儲器 (768x8) 256k 32 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率: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 |
| CAT24WC257KI | 功能描述:電可擦除可編程只讀存儲器 (768x8) 256k 32 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率: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 |
| CAT24WC257KI-1.8 | 功能描述:電可擦除可編程只讀存儲器 (768x8) 256k 32 RoHS:否 制造商:Atmel 存儲容量:2 Kbit 組織:256 B x 8 數(shù)據(jù)保留:100 yr 最大時鐘頻率: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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