參數(shù)資料
型號(hào)： M41ST87YMX6
廠商： STMICROELECTRONICS
元件分類(lèi)： 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)提取
英文描述： 1 TIMER(S), REAL TIME CLOCK, PDSO28
封裝： 0.300 INCH, ROHS COMPLIANT, PLASTIC, SOX-28
文件頁(yè)數(shù)： 40/52頁(yè)
文件大?。?/td> 689K
代理商： M41ST87YMX6
M41ST87Y, M41ST87W
DC and AC parameters
Doc ID 9497 Rev 8
VSO
Battery backup
switchover
2.5
V
RSW
External switch
resistance on
tamper pin
500
Ω
1.
Valid for ambient operating temperature: TA = –40 to 85 °C; VCC = 4.5 to 5.5 V or 2.7 to 3.6 V (except where noted).
2.
Measured with VOUT and ECON open. Not including tamper detection current (see Table 4 on page 23).
3.
RSTIN1 and RSTIN2 internally pulled-up to VCC through 100 kΩ resistor. WDI internally pulled-down to VSS through
100 k
Ω resistor.
4.
Outputs deselected.
5.
External SRAM must match RTC supervisor chip VCC specification.
6.
For PFO1 and PFO2 (if PFOD = '0'), SQW/FT (if SQWOD = '0'), and TPCLR pins (CMOS).
7.
Conditioned output (ECON) can only sustain CMOS leakage current in the battery backup mode. Higher leakage currents
will reduce battery life.
8.
TPCLR output can source –300 A (typ) for VBAT = 2.9 V.
9.
For IRQ/OUT, SQW/FT (if SQWOD = '1'), PFO1 and PFO2 (if PFOD = '1'), RST, SDA, and F32k pins (open drain).
Table 17.
DC characteristics (continued)
Table 18.
Crystal(1) electrical characteristics
Symbol
Parameter(2)
Min
Typ
Max
Units
fO
Resonant frequency
32.768
kHz
RS
Series resistance
65(3)
k
Ω
CL
Load capacitance
12.5
pF
1.
User supplied for the 20-lead SSOP package. STMicroelectronics recommends the KDS DT-38 (3 x 8 mm) for thru-hole, or
the KDS DMX-26S (3.2 x 8 mm) for surface-mount, tuning fork-type quartz crystals. For contact information, see Section 8:
2.
Load capacitors are integrated within the M41ST87. Circuit board layout considerations for the 32.768 kHz crystal of
minimum trace lengths and isolation from RF generating signals should be taken into account.
3.
TA = –40 to 85 °C (guaranteed by design).
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M41ST87YMX6F 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:5.0 V and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM
M41ST87YMX6TR 功能描述:實(shí)時(shí)時(shí)鐘 Serial 1280 (160x8) 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
M41ST87YSS6 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:5.0 V and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM
M41ST87YSS6F 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:5.0 V and 3.3/3.0 V secure serial RTC and NVRAM supervisor with tamper detection and 128 bytes of clearable NVRAM
M41ST95W 制造商:STMICROELECTRONICS 制造商全稱(chēng):STMicroelectronics 功能描述:5.0 or 3.0V, 512 bit (64 bit X 8) Serial RTC (SPI) SRAM and NVRAM Supervisor
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