參數(shù)資料
型號(hào): M48T37Y-70MH1E
廠商: STMICROELECTRONICS
元件分類: 時(shí)鐘/數(shù)據(jù)恢復(fù)及定時(shí)提取
英文描述: 0 TIMER(S), REAL TIME CLOCK, PDSO44
封裝: 0.330 INCH, ROHS COMPLIANT, PLASTIC, SOH-44
文件頁(yè)數(shù): 14/30頁(yè)
文件大?。?/td> 515K
代理商: M48T37Y-70MH1E
M48T37Y, M48T37V
DC and AC parameters
Doc ID 7019 Rev 9
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 9.
Operating and AC measurement conditions
Note:
Output Hi-Z is defined as the point where data is no longer driven.
Figure 12.
AC testing load circuit
1.
50 pF for M48T37V.
Note:
Excluding open-drain output pins
Table 10.
Capacitance
Parameter
M48T37Y
M48T37V
Unit
Supply voltage (VCC)
4.5 to 5.5
3.0 to 3.6
V
Ambient operating temperature (TA)
Grade 1
0 to 70
°C
Grade 6
–40 to 85
°C
Load capacitance (CL)
100
50
pF
Input rise and fall times
≤ 10
ns
Input pulse voltages
0 to 3
V
Input and output timing ref. voltages
1.5
V
AI02325
CL = 100pF
(1)
CL includes JIG capacitance
645
Ω
DEVICE
UNDER
TEST
1.75V
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
-
10
pF
CIO
(3)
3.
Outputs deselected.
Input / output capacitance
-
10
pF
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M48T37Y-70MH1TR 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:5.0 or 3.3 V, 256 Kbit (32 Kbit x 8) TIMEKEEPER? SRAM
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