BQ3285EC Datasheet, PDF (15/26 Pages) Texas Instruments – Real-Time Clock (RTC)

bq3285EC/LC
Capacitance—bq3285EC/LC (T_A = 25°C, F = 1MHz, V_CC = 5.0V)
Symbol
Parameter
Minimum Typical Maximum Unit
Conditions
CI/O
Input/output capacitance
-
CIN
Input capacitance
-
-
7
pF VOUT = 0V
-
5
pF VIN = 0V
Note:
This parameter is sampled and not 100% tested. It does not include the X1 or X2 pin.
AC Test Conditions—bq3285EC
Parameter
Input pulse levels
Input rise and fall times
Input and output timing reference levels
Output load (including scope and jig)
Test Conditions
0 to 3.0 V
5 ns
1.5 V (unless otherwise specified)
See Figures 4 and 5
+5V
960
For all outputs
except INT
INT
510
50pF
+5V
1.15k
130pF
Figure 4. Output Load—bq3285EC
Figure 5. Output Load—bq3285EC
July 1996
15