User's Manual

WizFi 210 User Manual (WIZnet Co., Ltd.)
6
(5) RTC Input Specifications
Min Typ Max Unit
RTC Supply Voltage (V
DDRTC
) 1.2 3.6 V
Input Low Voltage (V
IL
) -0.3 0.25V
DDRTC
V
Input High Voltage (V
IH
) 0.8V
DDRTC
V
DDRTC
V
Schmitt trig. Low to High threshold
point (V
T+
)
0.57V
DDRTC
0.68V
DDRTC
V
Schmitt trig. High to Low threshold
point (V
T-
)
0.27V
DDRTC
0.35V
DDRTC
V
Table 6. RTC Input Specifications
(6) RTC Output Specifications
Min Typ Max Unit
RTC Supply Voltage (V
DDRTC
) 1.2 3.6 V
Output Low Voltage (V
OL
) 0 0.4 V
Output High Voltage (V
OH
) 0.8V
DDRTC
V
DDRTC
V
Output rise time (t
TLH
)
19 142 ns
Output fall time (t
THL
)
21 195 ns
Table 7. RTC Output Specifications