DS1221 Description
A, B CE CE0 - CE3 VBAT1 VBAT2 RST VCCI VCCO RD WE D/Q - Address Inputs - Chip Enable Input - Chip Enable Outputs - + Battery 1 - + Battery 2 - Reset - +5V Supply - RAM Supply - Read Inpu - Write Input - Data Input/Output DS1221 16-Pin SOIC (300-mil) See Mech. Drawings Section Used with optional security circuit only and must be connected to ground in all other cases. DESCRIPTION The DS1221 Nonvolatile Controller x 4...
DS1221 Key Features
- RST VCCI VCCO
- WE -D/Q
- Address Inputs
- Chip Enable Input
- Chip Enable Outputs
- + Battery 1
- + Battery 2
- +5V Supply
- RAM Supply
- Read Inpu