VCCO
- RAM Supply
VBAT1
- + Battery 1
TOL
- Power Supply Tolerance
GND
- Ground
CE - Chip Enable Input
CEO
VBAT2 VCCI NC
- Chip Enable Output - + Battery 2 - + Supply - No Connect
DESCRIPTION
The DS1210 Nonvolatile Controller Chip is a CMOS circuit which solves the application problem of
Features
Converts CMOS RAMs into Nonvolatile Memories.
Unconditionally Write Protects when VCC is Out-of-Tolerance.
Automatically Switches to Battery when Power-Fail Occurs.
The following content is an automatically extracted verbatim text
from the original manufacturer datasheet and is provided for reference purposes only.
View original datasheet text
19-6294; Rev 6/12
DS1210 Nonvolatile Controller Chip
FEATURES
Converts CMOS RAMs into Nonvolatile Memories
Unconditionally Write Protects when VCC is Out-of-Tolerance
Automatically Switches to Battery when Power-Fail Occurs
Space-Saving 8-Pin PDIP or 16-Pin SO Packages
Consumes <100nA of Battery Current Tests Battery Condition on Power up Provides for Redundant Batteries Optional 5% or 10% Power-Fail Detection Low Forward Voltage Drop on the VCC
Switch Optional Industrial (N) Temperature Range of
-40°C to +85°C
PIN ASSIGNMENT
VCCO 1
8 VCCI
VBAT1 2
7 VBAT2
TOL 3
6 CEO
GND 4
5 CE
DS1210 8-pin PDIP (300 mils)
NC VCCO
NC VBAT1
NC TOL NC GND
1 2 3 4 5 6 7 8
16 NC 15 VCCI 14 NC 13 VBAT2 12 NC 11 CEO 10 NC
9 CE
DS1210S 16-pin SO (300 mils)
PIN DESCRIPTION
VCC
DS1210 Datasheet
