Pin Descriptions (Continued)
Pin Number
JM3758 U M 3 7 5 8 U M 3 7 5 8
-108A/B - 0 8 4
-084AM
tAM/BM A/B
/BM
-
10
11
13
14
-
-
-
Designation
Description
NC
NC
D3
D4
Noconnection
No connection
Data output pin 3, states are either HIGH (1 or open)
or LOW (0)
Data output pin 4, states are either HIGH (1 or open)
or LOW (0)
Data output pin 5, states are either HIGH (1 or open)
or LOW (0)
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)
Data output pin 6, states are either
HIGH
(1 or open)
or LOW (0)
R.C. input pin for Single pin oscillator. A resistor is
connected from this pin to V
DO
and a capacitor to Vss
The ground pin for UM3756
This pin is used to select transmit or receive modes
MODE - V
DO
: Encoder mode
MODE - Vss : Decoder mode
Receiver input pin. Receives waveform from the detect
circuit
In encoder mode, this pin will transmit waveform; in
decoder mode, this pin will switch to LOW if compa-
rison is OK
The positive power supply of UM3756
15
16
17
10
11
12
12
D5
D6
D7
13
14
18
19
-
13
15
Da
osc
20
21
14
15
16
17
vss
MODE
22
23
16
17
ia
19
RXINP
TX/RX OUT
24
18
20
VDD
- ._.
6
*
UMC [ UMC CORPORATION ]
