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M4T28-BR12SH1 Datasheet(PDF) 19 Page - STMicroelectronics

Part # M4T28-BR12SH1
Description  3.3V, 256Kbit (32Kbit x 8) TIMEKEEPER짰 SRAM
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M4T28-BR12SH1 Datasheet(HTML) 19 Page - STMicroelectronics

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M48T35AV
DC and AC parameters
19/28
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 7.
Operating and AC measurement conditions
Note:
Output Hi-Z is defined as the point where data is no longer driven.
Figure 12.
AC measurement load circuit
Table 8.
Capacitance
Parameter
M48T35AV
Unit
Supply voltage (VCC)
3.0 to 3.6
V
Ambient operating temperature (TA)
0 to 70
°C
Load capacitance (CL)50
pF
Input rise and fall times
≤ 5ns
Input pulse voltages
0 to 3
V
Input and output timing ref. voltages
1.5
V
Symbol
Parameter(1)(2)
1.
Effective capacitance measured with power supply at 5V; sampled only, not 100% tested.
2.
At 25°C, f = 1MHz.
Min
Max
Unit
CIN
Input capacitance
10
pF
COUT
(3)
3.
Outputs deselected.
Output capacitance
10
pF
AI02586
CL = 50pF
(or 5pF)
CL includes JIG capacitance
DEVICE
UNDER
TEST
1.75V


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