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RX − 8801 SA / JE
3. Terminal description
3.1. Terminal connections
RX − 8801 SA
1. T1 (CE)
2. SCL
3. FOUT
4. N.C.
5. TEST
6. V
DD
7. FOE
SOP − 14pin
3.2. Pin Functions
Signal
I/O
name
SCL
Input
SDA
I/O
FOUT
Output
FOE
Input
/ INT
Output
TEST
Input
T1 (CE)
Input
−
T2 (V
)
PP
−
V
DD
−
GND
−
N.C.
Note: Be sure to connect a bypass capacitor rated at least 0.1 μF between V
14. N.C.
13. SDA
12. T2 (V
)
PP
11. GND
10. / INT
9. N.C.
8. N.C.
This is the serial clock input pin for I
This pin's signal is used for input and output of address, data, and ACK bits, synchronized
with the serial clock used for I
Since the SDA pin is an N-ch open drain pin during output, be sure to connect a suitable
pull-up resistance relative to the signal line capacity.
This is the C-MOS output pin with output control provided via the FOE pin.
When FOE = "H" (high level), this pin outputs a 32.768 kHz signal.
When output is stopped, the FOUT pin = "Hi-Z"( high impedance ).
This is an input pin used to control the output mode of the FOUT pin.
When this pin's level is high, the FOUT pin is in output mode. When it is low, output via the
FOUT pin is stopped.
This pins is used to output alarm signals, timer signals, time update signals, and other
signals. This pin is an open drain pin.
* Use by the manufacture for testing. ( Do not connect externally.)
* Use by the manufacture for testing. ( Do not connect externally.)
* Use by the manufacture for testing. ( Do not connect externally.)
This pin is connected to a positive power supply.
This pin is connected to a ground.
This pin is not connected to the internal IC.
Leave N.C. pins open or connect them to GND or V
Page - 2
RX − 8801 JE
1. /INT
2. GND
# 1
3. T2
(V
)
PP
4. SDA
5. N.C.
6. T1 (CE)
7. SCL
8. FOUT
# 10
9. N.C.
10. FOE
VSOJ − 20pin
Function
2
C Bus communications.
2
C communications.
.
DD
and GND.
DD
20. N.C.
19. N.C.
# 20
18. N.C.
17. N.C.
16. N.C.
15. N.C.
14. N.C.
13. N.C.
# 11
12. N.C.
11. V
DD
ETM26E-03
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