M48T35_10 Datasheet, PDF (18/28 Pages) STMicroelectronics – 5 V, 256 Kbit (32 Kb x 8) TIMEKEEPER® SRAM

DC and AC parameters
5
DC and AC parameters
M48T35, M48T35Y
Note:
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
Parameter
M48T35
M48T35Y
Unit
Supply voltage (V_CC)
4.75 to 5.5
4.5 to 5.5
V
Ambient operating temperature (T_A)
0 to 70
–40 to 85
°C
Load capacitance (C_L)
100
100
pF
Input rise and fall times
≤5
≤5
ns
Input pulse voltages
0 to 3
0 to 3
V
Input and output timing ref. voltages
1.5
1.5
V
Output Hi-Z is defined as the point where data is no longer driven.
Figure 11. AC measurement load circuit
5V
DEVICE
UNDER
TEST
1kΩ
1.9kΩ
OUT
CL = 100pF or 5pF
CL includes JIG capacitance
Table 8. Capacitance
Symbol
Parameter⁽¹⁾⁽²⁾
Min
Max
C_IN
Input capacitance
-
10
C_OUT(3)
Output capacitance
-
10
1. Effective capacitance measured with power supply at 5 V; sampled only, not 100% tested.
2. At 25 °C, f = 1 MHz.
3. Outputs deselected.
AI01030
Unit
pF
pF
18/28
Doc ID 2611 Rev 9