DS1212 Dallas Semiconducotr, DS1212 Datasheet - Page 7

• Manufacturer Part Number: DS1212
• Description: Nonvolatile Controller x 16 Chip
• Manufacturer: Dallas Semiconducotr

TYPICAL APPLICATION Figure 2
OUTPUT LOAD Figure 3
NOTES:
1. All voltages referenced to ground.
2. Only one battery input is required.
3. Measured with V
4. I
5. Measured with a load as shown in Figure 3.
6. I
7. Chip enable outputs
8. t
9. t
10. For applications where higher currents are required, please see the Battery Manager chip data sheet (DS1259).
11. The DS1212 has a 5 kohm resistor in series with the battery input. As current from the battery increases over
mode.
defined by inputs A through D with a propagation delay of t
100 A, the voltage drop will increase proportionately. The device cannot be damaged by higher currents in the
battery path.
CE
AS
CC01
CC02
max. must be met to ensure data integrity on power loss.
is only required to keep the decoder outputs glitch-free. While
is the maximum average load which the DS1212 can supply to the memories.
is the maximum average load current which the DS1212 can supply to the memories in the battery backup
CCO
CE0
and
-
CE0
CE15
-
CE15
can only sustain leakage current in the battery backup mode.
open.
7 of 7
PD
from an A through D input change.
CE
is low, the outputs (
CE0
-
CE15
) will be
DS1212