m48t37v STMicroelectronics, m48t37v Datasheet - Page 21

• Manufacturer Part Number: m48t37v
• Description: 5.0 Or 3.3v, 256 Kbit 32 Kbit X 8 Timekeeper Sram
• Manufacturer: STMicroelectronics

5
Note:
Note:
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.
Output Hi-Z is defined as the point where data is no longer driven.
Figure 12. AC testing load circuit
1.
Excluding open-drain output pins
Table 10.
1. Effective capacitance measured with power supply at 5V. Sampled only, not 100% tested.
2. At 25°C, f = 1MHz.
3. Outputs deselected.
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
A
50pF for M48T37V.
C
)
IO
IN
(3)
Operating and AC measurement conditions
Capacitance
CC
Parameter
)
L
Input / Output Capacitance
)
Input Capacitance
C L includes JIG capacitance
Parameter
DEVICE
UNDER
TEST
(1)(2)
Grade 1
Grade 6
C L = 100pF
645
M48T37Y
4.5 to 5.5
–40 to 85
0 to 70
0 to 3
100
1.5
(1)
10
Min
AI02325
M48T37V
3.0 to 3.6
–40 to 85
1.75V
0 to 70
0 to 3
1.5
50
10
Max
10
10
Unit
°C
°C
pF
ns
V
V
V
Unit
pF
pF
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