m48t129v STMicroelectronics, m48t129v Datasheet - Page 21

• Manufacturer Part Number: m48t129v
• Description: 5.0 Or 3.3v, 1 Mbit 128 Kbit X 8 Timekeeper Sram
• Manufacturer: STMicroelectronics

DC AND AC PARAMETERS
This section summarizes the operating and mea-
surement 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 Measure-
Table 8. Operating and AC Measurement Conditions
Note: Output Hi-Z is defined as the point where data is no longer driven.
Figure 15. AC Testing Load Circuit
Note: Excluding open drain output pins; 50pF for M48T129V.
Table 9. Capacitance
Note: 1. Effective capacitance measured with power supply at 5V (M48T129Y) or 3.3V (M48T129V); sampled only, not 100% tested.
Supply Voltage (V
Ambient Operating Temperature (T
Load Capacitance (C
Input Rise and Fall Times
Input Pulse Voltages
Input and Output Timing Ref. Voltages
Symbol
C
C L includes JIG capacitance
C
IO
2. At 25°C, f = 1MHz.
3. Outputs deselected.
DEVICE
UNDER
IN
TEST
(3)
Input Capacitance
Input / Output Capacitance
CC
Parameter
)
L
)
C L = 100pF
Parameter
650
or 50pF
A
)
(1,2)
AI01803C
1.75V
M48T129Y
4.5 to 5.5
0 to 70
0 to 3
ment Conditions listed in the relevant tables. De-
signers should check that the operating conditions
in their projects match the measurement condi-
tions when using the quoted parameters.
100
1.5
5
Min
Max
M48T129V
20
20
3.0 to 3.6
0 to 70
M48T129Y, M48T129V
0 to 3
1.5
50
5
Unit
pF
pF
Unit
°C
pF
ns
V
V
V
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