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參數(shù)資料
| 型號： | MCP7940N-I/SN |
| 元件分類： | 時鐘/數(shù)據(jù)恢復及定時提取 |
| 英文描述： | REAL TIME CLOCK, PDSO8 |
| 封裝： | 3.90 MM, ROHS COMPLIANT, PLASTIC, SOIC-8 |
| 文件頁數(shù)： | 31/36頁 |
| 文件大?。?/td> | 551K |
| 代理商： | MCP7940N-I/SN |
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MCP7940N
DS25010A-page 4
2011 Microchip Technology Inc.
TABLE 1-2:
AC CHARACTERISTICS
Electrical Characteristics:
Industrial (I):
VCC = +1.8V to 5.5V
TA = -40°C to +85°C
Param.
No.
Symbol
Characteristic
Min.
Max.
Units
Conditions
1FCLK
Clock frequency
—
100
400
kHz
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
2THIGH
Clock high time
4000
600
—
ns
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
3TLOW
Clock low time
4700
1300
—
ns
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
4TR
SDA and SCL rise time
—
1000
300
ns
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
5TF
SDA and SCL fall time
—
1000
300
ns
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
6THD:STA
Start condition hold time
4000
600
—
ns
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
7TSU:STA
Start condition setup time
4700
600
—
ns
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
8THD:DAT Data input hold time
0
—
ns
9TSU:DAT
Data input setup time
250
100
—
ns
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
10
TSU:STO
Stop condition setup time
4000
600
—
ns
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
11
TAA
Output valid from clock
—
3500
900
ns
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
12
TBUF
Bus free time: Time the bus
must be free before a new
transmission can start
4700
1300
—
ns
1.8V
VCC < 2.5V
2.5V
VCC 5.5V
13
TSP
Input filter spike suppression
(SDA and SCL pins)
—50
ns
Note 1: Not 100% tested.
2: The combined TSP and VHYS specifications are due to new Schmitt Trigger inputs, which provide improved
noise spike suppression. This eliminates the need for a TI specification for standard operation.
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MCP7940NT | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Low-Cost I2C? Real-Time Clock/Calendar with SRAM and Battery Switchover |
| MCP7940NT-E/MNY | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Low-Cost I2C Real-Time Clock/Calendar with SRAM and Battery Switchover |
| MCP7940NT-E/MS | 制造商:Microchip Technology Inc 功能描述:I2C GP RTCC, 64B SRAM, EXT - Tape and Reel 制造商:Microchip Technology Inc 功能描述:IC RTCC 64B SRAM GP I2C 8MSOP |
| MCP7940NT-E/SN | 功能描述:實時時鐘 I2C GP RTCC 64B SRAM EXT RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時間格式:HH:MM:SS RTC 存儲容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| MCP7940NT-E/ST | 制造商:MICROCHIP 制造商全稱:Microchip Technology 功能描述:Low-Cost I2C Real-Time Clock/Calendar with SRAM and Battery Switchover |
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