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M48T59 Datasheet(PDF) 22 Page - STMicroelectronics

Part # M48T59
Description  5.0 or 3.3 V, 64 Kbit (8 Kbit x 8) TIMEKEEPER짰 SRAM
PDF  32 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M48T59 Datasheet(HTML) 22 Page - STMicroelectronics

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DC and AC parameters
M48T59, M48T59Y, M48T59V
22/32
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 Table 9.
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 13.
AC measurement load circuit
1.
50pF for M48T59V.
Note:
Excluding open-drain output pins
Table 10.
Capacitance
Parameter
M48T59
M48T59Y
M48T59V
Unit
Supply voltage (VCC)
4.75 to 5.5
4.5 to 5.5
3.0 to 3.6
V
Ambient operating temperature (TA)
0 to 70
0 to 70
0 to 70
°C
Load capacitance (CL)
100
100
50
pF
Input rise and fall times
≤ 5
≤ 5
≤ 5ns
Input pulse voltages
0 to 3
0 to 3
0 to 3
V
Input and output timing ref. voltages
1.5
1.5
1.5
V
AI02325
CL = 100pF
(1)
CL includes JIG capacitance
645
Ω
DEVICE
UNDER
TEST
1.75V
Symbol
Parameters(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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