- 您现在的位置：买卖IC网 > PDF目录297328 > RV5C348A (RICOH COMPANY LTD) 4-WIRE SERIAL INTERFACE PDF资料下载
参数资料
| 型号： | RV5C348A |
| 厂商： | RICOH COMPANY LTD |
| 元件分类： | XO, clock |
| 英文描述： | 4-WIRE SERIAL INTERFACE |
| 中文描述： | 0 TIMER(S), REAL TIME CLOCK, PDSO10 |
| 封装： | 4 X 2.90 MM, 1.20 MM HEIGHT, 0.50 MM PITCH, SSOP-10 |
| 文件页数： | 5/45页 |
| 文件大小： | 1276K |
| 代理商： | RV5C348A |
第1页第2页第3页第4页当前第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页
Rx5C348A/B
(4) TEST
Test Bit
TEST
Description
0
Normal operation mode.
(Default)
1
Test mode.
The TEST bit is used only for testing in the factory and should normally be set to 0.
(5) CT2, CT1, and CT0
Periodic Interrupt Selection Bits
Description
CT2
CT1
CT0
Wave
form
mode
Interrupt Cycle and Falling Timing
0
-
OFF(H)
(Default)
0
1
-
Fixed at “L”
0
1
0
Pulse Mode
*1)
2Hz (Duty50%)
0
1
Pulse Mode
*1)
1Hz (Duty50%)
1
0
Level Mode
*2)
Once per 1 second (Synchronized with
second counter increment)
1
0
1
Level Mode
*2)
Once per 1 minute (at 00 seconds of
every minute)
1
0
Level Mode
*2)
Once per hour (at 00 minutes and 00
seconds of every hour)
1
Level Mode
*2)
Once
per
month
(at
00
hours,
00
minutes,
and 00 seconds of first day of every
month)
* 1)
Pulse Mode: 2-Hz and 1-Hz clock pulses are output in synchronization with the increment of the
second counter as illustrated in the timing chart below.
/INTR Pin
Rewriting of the second counter
CTFG Bit
Approx. 92
s
(Increment of second counter)
In the pulse mode, the increment of the second counter is delayed by approximately 92
s from the
falling edge of clock pulses.
Consequently, time readings immediately after the falling edge of clock
pulses may appear to lag behind the time counts of the real-time clocks by approximately 1 second.
Rewriting the second counter will reset the other time counters of less than 1 second, driving the
/INTR pin low.
* 2)
Level Mode: Periodic interrupt signals are output with selectable interrupt cycle settings of 1 second, 1
minute, 1 hour, and 1 month.
The increment of the second counter is synchronized with the falling
edge of periodic interrupt signals.
For example, periodic interrupt signals with an interrupt cycle
setting of 1 second are output in synchronization with the increment of the second counter as
illustrated in the timing chart below.
12345
Rev.2.01
- 13 -
相关PDF资料 |
PDF描述 |
|---|---|
| RV5C348B | 4-WIRE SERIAL INTERFACE |
| RS9EM18M | RECTANGULAR ADAPTER |
| TDH25FJ1212 | RECTANGULAR ADAPTER |
| TDH25FJ4545K | RECTANGULAR ADAPTER |
| TDH25MJ12D | RECTANGULAR ADAPTER |
相关代理商/技术参数 |
参数描述 |
|---|---|
| RV5C348B | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:4-WIRE SERIAL INTERFACE REAL-TIME CLOCK ICs WITH VOLTAGE MONITORING FUNCTION |
| RV5C386A | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:I2C-bus Real-Time Clock ICs with Voltage Monitoring Function |
| RV5C386A_03 | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC WITH VOLTAGE MONITORING FUNCTION |
| RV5C386A-E2 | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:I2C-bus Real-Time Clock ICs with Voltage Monitoring Function |
| RV5C387A | 制造商:RICOH 制造商全称:RICOH electronics devices division 功能描述:I2C-bus Real-Time Clock ICs with Voltage Monitoring Function |
发布紧急采购，3分钟左右您将得到回复。