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Pin
Name
No.
This is an ADC input/DAC output
pin.
The ADC is a 2-level detection type
21
(1 bit). The threshold level is 2.25 V.
I/O3
(18)
The DAC (1 bit) is an open-collector
output. Make sure that the current
flowing into this pin is 2.0 mA or
less.
This pin is for a 1 bit DAC output.
22
This is an open-collector output.
O4
Make sure that the current flowing
(19)
into this pin is 2.0 mA or less.
23
GND
This is the GND pin.
(21)
This pin is for input an I
24
The input threshold level of this pin
SCL
is 2.25 V.
(22)
This is an I
pin. The input threshold level of this
25
pin is 2.25 V.
SDA
(23)
Make sure that the current flowing
into this pin is 3.0 mA or less.
Function
21
(18)
22
(19)
2
C bus clock.
24
(22)
2
C bus data input/output
25
(25)
Interface
Logic
Logic
Surge
protection
circuit
Surge
protection
circuit
TA1218N/F
Logic
Logic
2000-09-11 10/40
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