Description
19-4145; Rev 2; 10/08 www.DataSheet4U.com Low-Power µP Supervisory Circuits with Battery-Backup Circuit and Chip-Enable Gating General .
The MAX16016/MAX16020/MAX16021 supervisory circuits monitor power supplies, provide battery-backup control, and chip-enable (CE) gating to write prote.
Features
* section. The MAX16016/MAX16020/MAX16021 operate from a 1.53V to 5.5V supply voltage and offer fixed reset thresholds for monitoring 5V, 3.3V, 3V, 2.5V, and 1.8V systems. Each device is available with either a pushpull or open-drain reset output. The MAX16016/MAX16020/MAX16021 are available in small
Applications
* Main/Backup Power for RTCs, CMOS Memories Industrial Control GPS Systems Set-Top Boxes Point-of-Sale Equipment Portable/Battery Equipment
Pin Configurations
CEOUT 14
TOP VIEW
CEIN VCC
16 BATT MR PFI WDI 1 2
15
13 12 11 RESET GND PFO WDO
+
MAX16020
3 4 5 LL 6 BATT_TEST 7 BATTOK
* EP 8 BATTO