- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄224146 > M41ST84Y (意法半導體) 5.0 or 3.0V, 512 bit 64 x 8 SERIAL RTC with SUPERVISORY FUNCTIONS PDF資料下載
參數(shù)資料
| 型號： | M41ST84Y |
| 廠商： | 意法半導體 |
| 英文描述： | 5.0 or 3.0V, 512 bit 64 x 8 SERIAL RTC with SUPERVISORY FUNCTIONS |
| 中文描述： | 5.0或3.0V，512位64 × 8串行實時時鐘與監(jiān)督職能 |
| 文件頁數(shù)： | 6/31頁 |
| 文件大?。?/td> | 452K |
| 代理商： | M41ST84Y |
第1頁第2頁第3頁第4頁第5頁當前第6頁第7頁第8頁第9頁第10頁第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
M41ST84Y, M41ST84W
14/31
Data Retention Mode
With valid VCC applied, the M41ST84Y/W can be
accessed as described above with READ or
WRITE cycles. Should the supply voltage decay,
the M41ST84Y/W will automatically deselect,
write protecting itself when VCC falls between
VPFD(max) and VPFD(min). This is accomplished
by internally inhibiting access to the clock regis-
ters. At this time, the Reset pin (RST) is driven ac-
tive and will remain active until VCC returns to
nominal levels. When VCC falls below the Battery
Back-up Switchover Voltage (VSO), power input is
switched from the VCC pin to the SNAPHAT
(or
external) battery, and the clock registers and
SRAM are maintained from the attached battery
supply.
All outputs become high impedance. On power up,
when VCC returns to a nominal value, write protec-
tion continues for tREC. The RST signal also re-
mains active during this time (see Figure 16, page
For a further more detailed review of lifetime calcu-
lations, please see Application Note AN1012.
Figure 16. Power Down/Up Mode AC Waveforms
Table 8. Power Down/Up AC Characteristics
Note: 1. Valid for Ambient Operating Temperature: TA = –40 to 85°C; VCC = 2.7 to 3.6V or 4.5 to 5.5V (except where noted).
2. VPFD(max) to VPFD(min) fall time of less than tF may result in deselection/write protection not occurring until 200s after VCC passes
VPFD(min).
3. VPFD(min) to VSS fall time of less than tFB may cause corruption of RAM data.
4. Programmable (see Table 13, page 23)
5. At 25°C (when using SOH28 + M4T28-BR12SH SNAPHAT top); VCC = 0V.
Symbol
Parameter(1)
Min
Typ
Max
Unit
tF
(2)
VPFD(max) to VPFD(min) VCC Fall Time
300
s
tFB
(3)
VPFD(min) to VSS VCC Fall Time
10
s
tPFD
PFI to PFO Propagation Delay
15
25
s
tR
VPFD(min) to VPFD(max) VCC Rise Time
10
s
tRB
VSS to VPFD(min) VCC Rise Time
1s
tREC(4)
Power up Deselect Time
40
200
ms
tDR
(5)
Expected Data Retention Time
10
YEARS
AI03681
VCC
INPUTS
(PER CONTROL INPUT)
OUTPUTS
DON'T CARE
HIGH-Z
tF
tFB
tR
tRB
tDR
VALID
(PER CONTROL INPUT)
RECOGNIZED
VPFD (max)
VPFD (min)
VSO
tREC
RST
PFO
相關PDF資料 |
PDF描述 |
|---|---|
| M45PE10-VMN6G | 4 Mbit Uniform Sector, Serial Flash Memory |
| M45PE10-VMN6P | 4 Mbit Uniform Sector, Serial Flash Memory |
| M45PE10-VMN6T | 4 Mbit Uniform Sector, Serial Flash Memory |
| M45PE10-VMN6TG | 4 Mbit Uniform Sector, Serial Flash Memory |
| M45PE10-VMN6TP | 4 Mbit Uniform Sector, Serial Flash Memory |
相關代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M41ST84YMH | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.0V, 512 bit 64 x 8 SERIAL RTC with SUPERVISORY FUNCTIONS |
| M41ST84YMH1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.0V, 512 bit 64 x 8 SERIAL RTC with SUPERVISORY FUNCTIONS |
| M41ST84YMH1TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.0V, 512 bit 64 x 8 SERIAL RTC with SUPERVISORY FUNCTIONS |
| M41ST84YMQ | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.0V, 512 bit 64 x 8 SERIAL RTC with SUPERVISORY FUNCTIONS |
| M41ST84YMQ1 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.0V, 512 bit 64 x 8 SERIAL RTC with SUPERVISORY FUNCTIONS |
發(fā)布緊急采購，3分鐘左右您將得到回復。