MAX6902ETA+T Maxim Integrated Products, MAX6902ETA+T Datasheet - Page 16

• Manufacturer Part Number: MAX6902ETA+T
• Description: IC RTC SPI COMPAT 8-TDFN
• Manufacturer: Maxim Integrated Products
• Type: Clock/Calendar/NVSRAMr

Specifications of MAX6902ETA+T

• Memory Size: 31B
• Time Format: HH:MM:SS (12/24 hr)
• Date Format: YY-MM-DD-dd
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-TDFN Exposed Pad
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MAX6902ETA+TTR

SPI-Compatible RTC in a TDFN
Figure 7. MAX6902 Crystal PCB Layout
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GUARD RING
*
* *
VIA CONNECTION
GROUND PLANE
VIA CONNECTION
GROUND PLANE
SM WATCH CRYSTAL
VIA CONNECTION
**
* *
V
CC
PLANE
*
*
*
LAYER 1 TRACE
SM CAP
0.1μF
*
*
*
*
**
**
LAYER 2 LOCAL GROUND PLANE
CONNECT ONLY TO PIN 4
GROUND PLANE VIA
*
*
*
*
GROUND PLANE
VIA CONNECTION