参数资料
型号: M41ST87WMX6
厂商: STMICROELECTRONICS
元件分类: 时钟/数据恢复及定时提取
英文描述: 1 TIMER(S), REAL TIME CLOCK, PDSO28
封装: 0.300 INCH, ROHS COMPLIANT, PLASTIC, SOX-28
文件页数: 38/52页
文件大小: 689K
代理商: M41ST87WMX6
M41ST87Y, M41ST87W
DC and AC parameters
Doc ID 9497 Rev 8
5
DC and AC parameters
This section summarizes the operating and measurement conditions, as well as the DC and
AC characteristics of the device. The parameters in the following DC and AC characteristic
tables are derived from tests performed under the measurement conditions listed in the
relevant tables. Designers should check that the operating conditions in their projects match
the measurement conditions when using the quoted parameters.
Table 15.
DC and AC measurement conditions
Note:
Output high Z is defined as the point where data is no longer driven.
Figure 27.
AC testing input/output waveforms
Table 16.
Capacitance
Parameter
M41ST87Y
M41ST87W
VCC supply voltage
4.5 to 5.5 V
2.7 to 3.6 V
Ambient operating temperature
–40 to 85 °C
Load capacitance (CL)
100 pF
50 pF
Input rise and fall times
≤ 50 ns
Input pulse voltages
0.2 to 0.8VCC
Input and output timing ref. voltages
0.3 to 0.7VCC
Symbol
Parameter(1)(2)
1.
Effective capacitance measured with power supply at 5 V. Sampled only, not 100% tested.
2.
At 25 °C, f = 1 MHz.
Min
Max
Unit
CIN
Input capacitance
7
pF
COUT
(3)
3.
Outputs are deselected.
Output capacitance
10
pF
tLP
Low-pass filter input time constant (SDA and SCL)
50
ns
AI02568
0.8VCC
0.2VCC
0.7VCC
0.3VCC
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M41ST87WSS6 制造商:STMICROELECTRONICS 制造商全称: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
M41ST87WSS6F 功能描述:实时时钟 128 NVRAM Serial RTC 3.0 to 3.6 Vcc 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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