MAX6900ETT+T Maxim Integrated Products, MAX6900ETT+T Datasheet - Page 15

• Manufacturer Part Number: MAX6900ETT+T
• Description: Real Time Clock IC RTC I2C COMPAT atible RTC in a TDFN
• Manufacturer: Maxim Integrated Products

Specifications of MAX6900ETT+T

• Function: Clock, Calendar, Alarm
• Rtc Memory Size: 31 B
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Rtc Bus Interface: Serial
• Package / Case: TDFN EP
• Time Format: HH:MM:SS
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Figure 11. Recommended Board Layout
______________________________________________________________________________________
*
GUARD RING
GROUND PLANE
VIA CONNECTION
**
**
GROUND PLANE
VIA CONNECTION
SM WATCH CRYSTAL
V
VIA CONNECTION
I
CC
2
PLANE
**
C-Compatible RTC in a TDFN
*
*
*LAYER 1 TRACE
0.1µF
SM CAP
*
*
**
*
** LAYER 2 LOCAL GROUND PLANE
CONNECT ONLY TO PIN 4
GROUND PLANE VIA
*
*
*
GROUND PLANE
VIA CONNECTION
15