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参数资料
| 型号： | RS5C372A-E2 |
| 厂商： | RICOH COMPANY LTD |
| 元件分类： | 时钟/数据恢复及定时提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO8 |
| 封装： | 0.65 MM PITCH, SSOP-8 |
| 文件页数： | 5/59页 |
| 文件大小： | 442K |
| 代理商： | RS5C372A-E2 |
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RS5C372B
9
PIN DESCRIPTIONS
Pin No.
Symbol
Name
Description
2
SCL
Serial Clock Line
This pin is used to input shift clock pulses to synchronize data input/output to and
from the SDA pin with this clock. Up to 6V beyond VDD may be input.
3
SDA
Serial Data Line
This pin inputs and outputs written or read data in synchronization with shift clock
pulses from the SCL pin. Up to 6V beyond VDD may be input. This pin functions
as an Nch open drain output.
5
INTR
Interrupt Output
This pin outputs periodic interrupt pulses and alarm interrupt (Alarm_A, Alarm_B)
to the CPU. This pin is off when power is activated from 0V. This pin functions as
an Nch open drain output.
1
32KOUT
32-kHz Clock Output
The 32KOUT pin is used to output 32.768kHz clock pulses (when 32.768kHz crys-
tal is used). Enabled at power-on from 0volts. CMOS output. The RS5C372B can
disable 32-kHz clock output in response to a command from the host computer.
7
OSCIN
Oscillator Circuit
6
OSCOUT
Input/Output
8
VDD
Positive Power Supply Input
4
VSS
Negative Power Supply Input
These pins configure an oscillator circuit by connecting a 32.768kHz or 32.000kHz
crystal oscillator between the OSCIN–OSCOUT pins.
(Any other oscillator circuit components are built into the RS5C372A.)
The VDD pin is connected to the positive power supply and VSS to the ground.
ABSOLUTE MAXIMUM RATINGS
(Vss=0V)
Symbol
Item
Conditions
Ratings
Unit
VDD
Supply Voltage
–0.3 to +7.0
V
VI
Input Voltage
SCL, SDA
–0.3 to +7.0
V
Output Voltage 1
SDA
–0.3 to +7.0
VO
Output Voltage 2
INTR
–0.3 to +12
V
Output Voltage 3
32KOUT
–0.3 to VDD+0.3
PD
Power Dissipation
Topt=25C
300
mW
Topt
Operating Temperature
–40 to +85
C
Tstg
Storage Temperature
–55 to +125
C
ABSOLUTE MAXIMUM RATINGS
Absolute Maximum ratings are threshold limit values that must not be exceeded even for an instant under
any conditions. Moreover, such values for any two items must not be reached simultaneously. Operation
above these absolute maximum ratings may cause degradation or permanent damage to the device. These
are stress ratings only and do not necessarily imply functional operation below these limits.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| RS5C372B | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:I2C-bus Serial Interface Real Time Clock (8pin SSOP) |
| RS5C372B-E1 | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:I2C-bus Serial Interface Real Time Clock (8pin SSOP) |
| RS5C372B-E2 | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:I2C-bus Serial Interface Real Time Clock (8pin SSOP) |
| RS5C373A | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Real-Time Clock |
| RS5C4FC | 制造商:Dialight 功能描述: |
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