- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄98007 > M48T513Y-85PL1 (STMICROELECTRONICS) 0 TIMER(S), REAL TIME CLOCK, DMA36 PDF資料下載
參數(shù)資料
| 型號： | M48T513Y-85PL1 |
| 廠商： | STMICROELECTRONICS |
| 元件分類： | 時鐘/數(shù)據(jù)恢復(fù)及定時提取 |
| 英文描述： | 0 TIMER(S), REAL TIME CLOCK, DMA36 |
| 封裝： | PLASTIC, MODULE, DIP-36 |
| 文件頁數(shù)： | 11/31頁 |
| 文件大?。?/td> | 168K |
| 代理商： | M48T513Y-85PL1 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁當(dāng)前第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁
19/31
M48T513Y, M48T513V
When the clock information matches the alarm
clock settings based on the match criteria defined
by RPT5-RPT1, the AF (Alarm Flag) is set. If AFE
(Alarm Flag Enable) is also set, the alarm condi-
tion activates the IRQ/FT pin. To disable alarm,
write ’0’ to the Alarm Date register and RPT1-5.
The IRQ/FT output is cleared by a READ to the
Flags Register as shown in Figure 13. A subse-
quent READ of the Flags Register is necessary to
see that the value of the Alarm Flag has been re-
set to ’0.’
The IRQ/FT pin can also be activated in the bat-
tery back-up mode. The IRQ/FT will go low if an
alarm occurs and both ABE (Alarm in Battery
Back-up Mode Enable) and AFE are set. The ABE
and AFE Bits are reset during power-up, therefore
an alarm generated during power-up will only set
AF. The user can read the Flag Register at system
boot-up to determine if an alarm was generated
while the M48T513Y/V was in the deselect mode
during power-up. Figure Figure 14, page 20 illus-
trates the back-up mode alarm timing.
Figure 13. Alarm Interrupt Reset Waveform
Table 12. Alarm Repeat Mode
RPT5
RPT4
RPT3
RPT2
RPT1
Alarm Activated
1
Once per Second
1
0
Once per Minute
1
0
Once per Hour
1
0
Once per Day
1
0
Once per Month
0
Once per Year
AI02581
AD0-AD7
ACTIVE FLAG BIT
ADDRESS 1FF0h
IRQ/FT
HIGH-Z
15ns Min
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| M48T558YMH1 | 0 TIMER(S), REAL TIME CLOCK, PDSO28 |
| M48T558YMH1TR | 0 TIMER(S), REAL TIME CLOCK, PDSO28 |
| M50944-XXXSP | 8-BIT, MROM, 4.3 MHz, MICROCONTROLLER, PDIP64 |
| M50944E-XXXSP | 8-BIT, OTPROM, 4.3 MHz, MICROCONTROLLER, PDIP64 |
| M5L8085AP | 8-BIT, 3 MHz, MICROPROCESSOR, PDIP40 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M48T513Y-85PM1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM |
| M48T513YPM | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM |
| M48T513YSH | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:3.3V-5V 4 Mbit 512Kb x8 TIMEKEEPER SRAM |
| M48T559 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:64 Kbit 8Kb x8 TIMEKEEPER SRAM with ADDRESS/DATA MULTIPLEXED |
| M48T559Y | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:64 Kbit 8Kb x8 TIMEKEEPER SRAM with ADDRESS/DATA MULTIPLEXED |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。