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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： | 7/28页 |
| 文件大小： | 320K |
| 代理商： | FM3316-G |
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FM33256/FM3316 SPI Companion w/ FRAM
Rev. 2.0
Feb. 2009
Page 15 of 28
to operate in polled mode. When POLL=0, CNT pin is continuously active. Nonvolatile, read/write.
CP
The CNT pin detects falling edges when CP = 0, rising edges when CP = 1. Nonvolatile, read/write.
0Ch
Watchdog Control
D7
D6
D5
D4
D3
D2
D1
D0
WDE
-
WDET4
WDET3
WDET2
WDET1
WDET0
WDE
Watchdog Enable: When WDE=1, a watchdog timer fault will cause the /RST signal to go active. When WDE =
0 the timer runs but has no effect on the /RST pin. Nonvolatile, read/write.
WDET(4:0)
Watchdog EndTime: Sets the ending time for the watchdog window timer with 60 ms (min.) resolution. The
window timer allow independent leading and trailing edges (start and end of window) to be set. New watchdog
timeouts are loaded when the timer is restarted by writing the 1010b pattern to WR(3:0). To save power (disable
timer circuit), the EndTime may be set to all zeroes. Nonvolatile, read/write.
Watchdog EndTime
WDET4 WDET3 WDET2 WDET1 WDET0
Disables Timer
0
(min.)
(max.)
60 ms
200 ms
0
1
120 ms
400 ms
0
1
0
180 ms
600 ms
0
1
.
1200 ms
4000 ms
1
0
1
0
1260 ms
4200 ms
1
0
1
0
1
1320 ms
4400 ms
1
0
1
0
.
1740 ms
5800 ms
1
0
1
1800 ms
6000 ms
1
0
1860 ms
6200 ms
1
0Bh
Watchdog Control
D7
D6
D5
D4
D3
D2
D1
D0
-
WDST4
WDST3
WDST2
WDST1
WDST0
WDST(4:0)
Watchdog StartTime. Sets the starting time for the watchdog window timer with 25 ms (max.) resolution. The
window timer allow independent leading and trailing edges (start and end of window) to be set. New watchdog
timer settings are loaded when the timer is restarted by writing the 1010b pattern to WR(3:0). Nonvolatile,
read/write.
Watchdog StartTime
WDST4 WDST3 WDST2 WDST1 WDST0
0 ms (default)
0
(min.)
(max.)
7.5 ms
25 ms
0
1
15.0 ms
50 ms
0
1
0
22.5 ms
75 ms
0
1
.
150 ms
500 ms
1
0
1
0
157.5 ms
525 ms
1
0
1
0
1
165 ms
550 ms
1
0
1
0
.
217.5 ms
725 ms
1
0
1
225 ms
750 ms
1
0
232.5 ms
775 ms
1
0Ah
Watchdog Restart
D7
D6
D5
D4
D3
D2
D1
D0
-
WR3
WR2
WR1
WR0
WR(3:0)
Watchdog Restart. Writing a pattern 1010b to WR(3:0) restarts the watchdog timer. The upper nibble contents
do not affect this operation. Writing any pattern other than 1010b to WR3-0 has no effect on the watchdog.
Write-only.
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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 |
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