RoyalTek Confidential
8
REB-1315S5 Operational Manual
8. Interface pin definition
Pin definition:
Pin
number
Pin
function
Type
Description
ELECTRICAL
CHARACTERISTICS
1
NC
~
NO CONNECTION
2
NC
~
NO CONNECTION
3
1PPS
O
1PPS TIMEMARK
PULSE
200mS ACTIVE HIGH
VOL <0.4V, VOH >2.2V
4
TXA
O
UART SERIAL DATA
OUTPUT
VOL <0.4V, VOH >2.2V
5
RXA
I
UART SERIAL DATA
INPUT
VIL <0.45V, 1.26V<VIH <3.6V
6
NC
~
NO CONNECTION
7
NC
~
NO CONNECTION
8
NC
~
NO CONNECTION
9
VIN_3V3
P
NO CONNECTION
10
NC
~
NO CONNECTION
11
VRTC_3V3
P
BACK UP BATTERY 2.2V MIN. 3V TYP.
3.3V
MAX.
