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參數(shù)資料
| 型號： | R2051K02 |
| 廠商： | RICOH COMPANY LTD |
| 元件分類： | 時鐘/數(shù)據(jù)恢復(fù)及定時提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, QCC12 |
| 封裝： | 2 X 2 MM, 0.85 MM PITCH, ULTRA-COMPACT, FFP, 12 PIN |
| 文件頁數(shù)： | 34/53頁 |
| 文件大?。?/td> | 343K |
| 代理商： | R2051K02 |
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R2051 Series
12345
Rev.1.04
- 4 -
n ABSOLUTE MAXIMUM RATINGS
(VSS=0V)
Symbol
Item
Pin Name
Description
Unit
VCC
Supply Voltage 1
VCC
-0.3 to +6.5
V
VDD
Supply Voltage 2
VDD
-0.3 to +6.5
V
VSB
Supply Voltage 3
VSB
-0.3 to +6.5
V
Input Voltage 1
SCL, SDA
-0.3 to +6.5
V
VI
Input Voltage 2
CIN
-0.3 to VDD+0.3
V
Output Voltage 1
/INTR, /VDCC
-0.3 to +6.5
V
VO
Output Voltage 2
CLKOUT
-0.3 to VCC+0.3
V
IOUT
Maximum Output Current
VDD
10
mA
PD
Power Dissipation
Topt = 25
°C
300
mW
Topt
Operating Temperature
-40 to +85
°C
Tstg
Storage Temperature
-55 to +125
°C
n RECOMMENDED OPERATING CONDITIONS
(VSS=0V, Topt=-40 to +85
°C)
Symbol
Item
Pin Name
Min,
Typ.
Max.
Unit
Vaccess
Supply Voltage
VCC
power
supply
voltage for interfacing
with CPU
-VDET1
*1)
5.5
V
VCLK
Minimum Timekeeping
Voltage
CGout,CDout=0pF
*2), *3)
0.75
1.00
V
fXT
Oscillation Frequency
32.768
kHz
VPUP
Pull-up Voltage
/INTR, /VDCC
5.5
V
*1) -VDET1 in Vaccess specification is guaranteed by design.
*2) CGout is connected between OSCIN and VSS, CDout is connected between OSCOUT and VSS.
R2051 series incorporates the capacitors between OSCIN and VSS, between OSCOUT and VSS.
Then normally, CGout and CDout are not necessary.
*3) Crystal oscillator: CL=6-8pF, R1=30K
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| R2051K02-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2 wire interface Real-Time Clock ICs with Battery Backup switch-over Function |
| R2051S01-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2 wire interface Real-Time Clock ICs with Battery Backup switch-over Function |
| R2051S02-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2 wire interface Real-Time Clock ICs with Battery Backup switch-over Function |
| R2051S03-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2 wire interface Real-Time Clock ICs with Battery Backup switch-over Function |
| R2051T01-E2 | 制造商:RICOH 制造商全稱:RICOH electronics devices division 功能描述:2 wire interface Real-Time Clock ICs with Battery Backup switch-over Function |
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