Pin Number
Description
Designation
UM3758 UM3758
- 0 8 4
Noconnection
No connection
10
11
NC
NC
D3
Data output pin 3, states are either HIGH (1 or open)
or LOW (0)
13
14
15
16
17
Data output pin 4, states are either HIGH (1 or open)
or LOW (0)
D4
D5
D6
D7
Data output pin 5, states are either HIGH (1 or open)
or LOW (0)
12
13
14
10
11
Data output pin 6, states are either HIGH (1 or open)
or LOW (0)
Data output pin 7, states are either HIGH (1 or open)
or LOW (0)
12
Data output pin 6, states are either HIGH (1 or open)
or LOW (0)
R.C. input pin for
pin oscillator. A resistor is
13
15
o s c
19
connected from this pin to VDO and a capacitor to Vss
The ground pin for UM3756
14
15
v s s
20
21
16
17
This pin is used to select transmit or receive modes
MODE
MODE
MODE
VDO :
mode
Vss : Decoder mode
input pin. Receives waveform from the detect
RXINP
OUT
22
23
16
17
circuit
In
mode, this pin will transmit waveform; in
19
20
mode, this pin will
to LOW if
rison is OK
VDD
The positive power supply of UM3756
24
UMC [ UMC CORPORATION ]
