- 您现在的位置：买卖IC网 > PDF目录67504 > FM3316-G SPECIALTY CONSUMER CIRCUIT, PDSO14 PDF资料下载
参数资料
| 型号： | FM3316-G |
| 元件分类： | 消费家电 |
| 英文描述： | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
| 封装： | GREEN, MO-012AB, SOIC-14 |
| 文件页数： | 8/28页 |
| 文件大小： | 320K |
| 代理商： | FM3316-G |
第1页第2页第3页第4页第5页第6页第7页当前第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
FM33256/FM3316 SPI Companion w/ FRAM
Rev. 2.0
Feb. 2009
Page 16 of 28
09h
Watchdog Flags
D7
D6
D5
D4
D3
D2
D1
D0
EWDF
LWDF
POR
LB
-
EWDF
Early Watchdog Timer Fault Flag: When a watchdog restart occurs too early (before the programmed watchdog
StartTime), the /RST pin is driven low and this flag is set. It must be cleared by the user. Note that both EWDF
and POR could be set if both reset sources have occurred since the flags were cleared by the user. Battery-
backed, read/write.
LWDF
Late Watchdog Timer Fault Flag: When either a watchdog restart occurs too late (after the programmed
watchdog EndTime) or no restart occurs, the /RST pin is driven low and this flag is set. It must be cleared by the
user. Note that both LWDF and POR could be set if both reset sources have occurred since the flags were
cleared by the user. Battery-backed, read/write.
POR
Power-On Reset: When the /RST signal is activated by VDD < VTP, the POR bit will be set to 1. A manual reset
will not set this flag. Note that one or both of the watchdog flags and the POR flag could be set if both reset
sources have occurred since the flags were cleared by the user. Battery-backed, read/write. (internally set, user
must clear bit)
LB
Low Backup: If the VBAK source drops to a voltage level insufficient to operate the RTC/alarm when
VDD<VBAK, this bit will be set to ‘1’. All registers need to be re-initialized since the battery-backed register
values should be treated as unknown. The user should clear it to 0 when initializing the system. Battery-backed.
Read/Write (internally set, user must clear bit).
08h
Timekeeping – Years
D7
D6
D5
D4
D3
D2
D1
D0
10 year.3
10 year.2
10 year.1
10 year.0
Year.3
Year.2
Year.1
Year.0
Contains the lower two BCD digits of the year. Lower nibble contains the value for years; upper nibble contains
the value for 10s of years. Each nibble operates from 0 to 9. The range for the register is 0-99. Battery-backed,
read/write.
07h
Timekeeping – Months
D7
D6
D5
D4
D3
D2
D1
D0
0
10 Month
Month.3
Month.2
Month.1
Month.0
Contains the BCD digits for the month. Lower nibble contains the lower digit and operates from 0 to 9; upper
nibble (one bit) contains the upper digit and operates from 0 to 1. The range for the register is 1-12. Battery-
backed, read/write.
06h
Timekeeping – Date of the month
D7
D6
D5
D4
D3
D2
D1
D0
0
10 date.1
10 date.0
Date.3
Date.2
Date.1
Date.0
Contains the BCD digits for the date of the month. Lower nibble contains the lower digit and operates from 0 to
9; upper nibble contains the upper digit and operates from 0 to 3. The range for the register is 1-31. Battery-
backed, read/write.
05h
Timekeeping – Day of the week
D7
D6
D5
D4
D3
D2
D1
D0
0
Day.2
Day.1
Day.0
Lower nibble contains a value that correlates to day of the week. Day of the week is a ring counter that counts
from 1 to 7 then returns to 1. The user must assign meaning to the day value, as the day is not integrated with the
date. Battery-backed, read/write.
04h
Timekeeping – Hours
D7
D6
D5
D4
D3
D2
D1
D0
0
10 hours.1
10 hours.0
Hours.3
Hours2
Hours.1
Hours.0
Contains the BCD value of hours in 24-hour format. Lower nibble contains the lower digit and operates from 0
to 9; upper nibble (two bits) contains the upper digit and operates from 0 to 2. The range for the register is 0-23.
Battery-backed, read/write.
03h
Timekeeping – Minutes
D7
D6
D5
D4
D3
D2
D1
D0
0
10 min.2
10 min.1
10 min.0
Min.3
Min.2
Min.1
Min.0
Contains the BCD value of minutes. Lower nibble contains the lower digit and operates from 0 to 9; upper nibble
contains the upper minutes digit and operates from 0 to 5. The range for the register is 0-59. Battery-backed,
read/write.
相关PDF资料 |
PDF描述 |
|---|---|
| FM33256-GTR | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
| FM33256-G | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
| FM4005-G | SPECIALTY CONSUMER CIRCUIT, PDSO14 |
| FME270-461/ES | 1 FUNCTIONS, 400 V, 1.5 A, DATA LINE FILTER |
| FME270-461V/ES | 1 FUNCTIONS, 400 V, 1.5 A, DATA LINE FILTER |
相关代理商/技术参数 |
参数描述 |
|---|---|
| FM3316-GTR | 功能描述:F-RAM 16K w/Pwr Mon WDT Bat Sw Pwr Fail RoHS:否 存储容量:512 Kbit 组织:64 K x 8 接口:SPI 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube 制造商:Cypress Semiconductor |
| FM33256 | 制造商:RAMTRON 制造商全称:RAMTRON 功能描述:3V Integrated Processor Companion with Memory |
| FM33256_09 | 制造商:RAMTRON 制造商全称:RAMTRON 功能描述:3V Integrated Processor Companion with Memory |
| FM33256B | 制造商:CYPRESS 制造商全称:Cypress Semiconductor 功能描述:3V Integrated Processor Companion with F-RAM |
| FM33256B-G | 功能描述:实时时钟 256Kb F-RAM Processor Companion RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 总线接口:I2C 日期格式:DW:DM:M:Y 时间格式:HH:MM:SS RTC 存储容量:64 B 电源电压-最大:5.5 V 电源电压-最小:1.8 V 最大工作温度:+ 85 C 最小工作温度: 安装风格:Through Hole 封装 / 箱体:PDIP-8 封装:Tube |
发布紧急采购，3分钟左右您将得到回复。