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參數(shù)資料
| 型號(hào)： | M41T256YMT7E |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 256 Kbit 32K x8 SERIAL RTC |
| 中文描述： | 256千位32K的x8串行實(shí)時(shí)時(shí)鐘 |
| 文件頁(yè)數(shù)： | 20/27頁(yè) |
| 文件大小： | 185K |
| 代理商： | M41T256YMT7E |
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M41T256Y
20/27
Table 8. DC Characteristics
Note: 1. Valid for Ambient Operating Temperature: T
A
= –25 to 70°C; V
CC
= 4.5 to 5.5V (except where noted).
2. Outputs deselected.
3. For RST and FT pin (Open Drain).
Table 9. Crystal Electrical Characteristics (Externally Supplied)
Note: 1. STMicroelectronics recommends the KDS DT-38: 1TA/1TC252E127, Tuning Fork Type (thru-hole) or the DMX-26S:
1TJS125FH2A212, (SMD) quartz crystal for industrial temperature operations. KDS can be contacted at kouhou@kdsj.co.jp or ht-
tp://www.kdsj.co.jp for further information on this crystal type.
2. Load capacitors are integrated within the M41T256Y. Circuit board layout considerations for the 32.768kHz crystal of minimum trace
lengths and isolation from RF generating signals should be taken into account.
Sym
Parameter
Test Condition
(1)
Min
Typ
Max
Unit
I
BAT
Battery Current OSC ON
T
A
= 25°C, V
CC
= 0V, V
BAT
= 3.0V
1.5
1.9
μA
Battery Current OSC OFF
1.0
1.4
μA
I
CC1
Supply Current
f = 400kHz
1.4
3.0
mA
I
CC2
Supply Current (Standby)
SCL, SDA = V
CC
– 0.3V
1.0
2.5
mA
I
LI
Input Leakage Current
0V
≤
V
IN
≤
V
CC
±1
μA
I
LO(2)
Output Leakage Current
0V
≤
V
OUT
≤
V
CC
±1
μA
V
IH
Input High Voltage
0.7V
CC
V
CC
+ 0.3
V
V
IHB
Input High Voltage in Battery Back-
up for Tamper Pin
V
BAT
–
Vdiode
V
BAT
V
V
IL
Input Low Voltage
–0.3
0.3V
CC
V
V
BAT
Battery Voltage
2.5
3.5
V
V
OH
Output High Voltage
V
CC
+ 0.3
V
V
OL
Output Low Voltage
I
OL
= 3.0mA
0.4
V
Output Low Voltage (Open Drain)
(3)
I
OL
= 10mA
0.4
V
V
PFD
Power Fail Deselect
4.20
4.50
V
V
SO
Battery Back-up Switchover
V
BAT
V
R
SW
Switch Resistance on Tamper Pin
500
Symbol
Parameter
(1,2)
Typ
Min
Max
Unit
f
0
Resonant Frequency
32.768
kHz
R
S
Series Resistance
35
k
C
L
Load Capacitance
12.5
pF
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相關(guān)代理商/技術(shù)參數(shù) |
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| M41T256YMT7F | 功能描述:實(shí)時(shí)時(shí)鐘 Serial 256K (32Kx8) RoHS:否 制造商:Microchip Technology 功能:Clock, Calendar. Alarm RTC 總線接口:I2C 日期格式:DW:DM:M:Y 時(shí)間格式:HH:MM:SS RTC 存儲(chǔ)容量:64 B 電源電壓-最大:5.5 V 電源電壓-最小:1.8 V 最大工作溫度:+ 85 C 最小工作溫度: 安裝風(fēng)格:Through Hole 封裝 / 箱體:PDIP-8 封裝:Tube |
| M41T256YMT7TR | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:256 Kbit 32K x8 SERIAL RTC |
| M41T256YSH | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:256 Kbit 32K x8 SERIAL RTC |
| M41T315V | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial access phantom RTC supervisor |
| M41T315V/W | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:Serial Access Phantom RTC Supervisor |
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