Datasheet > 微控制器和处理器 > 计时器或实时时钟> RS5C317B

RS5C317B

更新时间： 2024-02-04 03:20:27

品牌	Logo	应用领域
理光 - RICOH		计时器或实时时钟微控制器和处理器外围集成电路光电二极管
页数	文件大小	规格书
40页	307K
描述
ULTRA-COMPACT HIGH PERFORMANCE SERIAL REAL-TIME CLOCK ICs

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技术参数
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RS5C317B 技术参数

是否Rohs认证：	不符合	生命周期：	Obsolete
零件包装代码：	SSOP	包装说明：	LSSOP, SSOP14,.25
针数：	14	Reach Compliance Code：	unknown
ECCN代码：	EAR99	HTS代码：	8542.39.00.01
风险等级：	5.92	Is Samacsys：	N
其他特性：	SECOND DIGIT ADJUSTMENT BY +/-30 SECONDS	最大时钟频率：	2.857 MHz
信息访问方法：	SERIAL, FIXED PROTOCOL	中断能力：	Y
JESD-30 代码：	R-PDSO-G14	JESD-609代码：	e0
长度：	5 mm	湿度敏感等级：	1
端子数量：	14	计时器数量：
最高工作温度：	85 °C	最低工作温度：	-40 °C
封装主体材料：	PLASTIC/EPOXY	封装代码：	LSSOP
封装等效代码：	SSOP14,.25	封装形状：	RECTANGULAR
封装形式：	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	峰值回流温度（摄氏度）：	NOT SPECIFIED
电源：	3/5 V	认证状态：	Not Qualified
座面最大高度：	1.45 mm	子类别：	Timer or RTC
最大供电电压：	6 V	最小供电电压：	2.5 V
标称供电电压：	3 V	表面贴装：	YES
技术：	CMOS	温度等级：	INDUSTRIAL
端子面层：	Tin/Lead (Sn/Pb)	端子形式：	GULL WING
端子节距：	0.65 mm	端子位置：	DUAL
最短时间：	SECONDS	处于峰值回流温度下的最长时间：	NOT SPECIFIED
易失性：	YES	宽度：	4.4 mm
uPs/uCs/外围集成电路类型：	TIMER, REAL TIME CLOCK	Base Number Matches：	1

RS5C317B 数据手册

RS5C317A/B

PIN DESCRIPTIONS

Symbol

Name

Description

Pin No.

The CE pin is used to interface the CPU and is accessible when held at the high

level. This pin is connected to a pull-down resistor. It should be switched to the

low level or opened when not accessed or when powering off the system. Holding

the CE pin high for more than 2.5 seconds forces 1Hz interrupt pulses to be output

from the INTR pin for oscillation frequency measurement. (No “1Hz pulse” is out-

put for less than 1.5 seconds.)

Chip enable input

SCLK

This pin is used to input shift clock pulses to synchronize data input to, and output

from, the SIO pin. SCLK and SCLK are for writing data at falling and rising edge of

clock pulses respectively and also reading data at rising and falling edge of clock

pulses respectively.

(A type)

Shift clock input

SCLK

(B type)

The SIO pin inputs and outputs written or read data in synchronization with shift

clock pulses from the SCLK/SCLK pin. The SIO pin causes high impedance when

SIO

Serial input/output CE pin is held at the low level (CMOS input/output). After the CE pin is switched

to the high level and the control bits and the address bits are input from the SIO,

the SIO pin performs serial input and output operations.

The INTR pin outputs periodic interrupt pulses and alarm interrupt to the CPU.

INTR

Interrupt output

Alarm output

This pin functions as an Nch open drain output even when the CE pin is held at the

low level.

The ALRM pin outputs alarm interrupt to the CPU. This pin functions as an Nch

open drain output even when the CE pin is held at the low level.

ALRM

TMOUT pin outputs timer counter output pulses for watch-dog-timer and free-run-

timer. This pin functions as an Nch open drain output even when the CE pin is

held at the low level. Timer function is disabled and TMOUT is OFF state when

the RS5C317 is in the oscillation halt sensing state.

TMOUT Timer output

These pins configure an oscillator circuit by connecting a 32.768kHz crystal oscilla-

tor between the OSCIN and OSCOUT pins and by connecting a capacitor between

the OSCIN and Vss pins. (Any other oscillator circuit components are built into

the RS5C317A/B.)

OSCIN Oscillator circuit

OSCOUT input/output

32kHz clock output pin for peripheral circuit.

The 32kHz clock output is controlled by CLKC pin and 32kHz control register.

The 32KOUT pin outputs 32kHz clock when the CLKC pin is held at high and

CLEN=0, and this pin is held at high impedance state when the CLKC pin and

CLEN is in any other states and even when the CLKC pin is open. CMOS output.

32KOUT 32kHz output

Control input for

CLKC

Control pin for an output of the 32KOUT pin. This pin incorporates a pull-down-

resistor.

32kHz output

VDD

VSS

Positive/Negative

power supply input

V^DDand VSS is connected to power supply and ground respectively.

Ordinarily connected to VSS pin.

No Connection

9, 12

1...4 5 678 9 10...40

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与RS5C317B相关器件

型号	品牌	描述	获取价格	数据表
RS5C317B-E2	RICOH	Real Time Clock, Volatile, 0 Timer(s), CMOS, PDSO14, 0.65 MM PITCH, SSOP-14	获取价格
RS5C317B-E2-FB	RICOH	Timer or RTC	获取价格
RS5C321A	RICOH	ULTRA-COMPACT SERIAL REAL-TIME CLOCK ICs WITH 32.768kHz	获取价格
RS5C321A/B	RICOH	real-time clock ICs	获取价格
RS5C321A-E1	RICOH	Real Time Clock, 0 Timer(s), CMOS, PDSO8, 0.65 MM PITCH, SSOP-8	获取价格
RS5C321A-E2	RICOH	Real Time Clock, 0 Timer(s), CMOS, PDSO8, 0.65 MM PITCH, SSOP-8	获取价格

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