== ==-
-SV ---
------
-.m---
L-a-4
-w-w-
g
aD
U M 3 7 5 8 Wies
Pin Descriptions (Continued)
Pin Number
UM3758 UM3758 UM3758
-12OA
-120AM
-18OA
/AM
12
9
9
Al2
Address select line 12 is tri-state indicated as 0, 1
and open
No connection
Noconnection
Address select line 13 is tri-state indicated as 0, 1
and open
Address select line 14 is tri-state indicated as 0, 1
and open
Address select line 15 is tri-state indicated as 0,
1
and open
Address select line 16 is tri-state indicated as 0, 1
and open
Address select line 17 is tri-state indicated as 0, 1
and open
Address select line 16 is tri-state indicated as 0, 1
and open
R.C. input pin for Single pin oscillator. A resistor is
connected from this pin to VDO and a capacitor to Vss
The ground pin for UM3756
This pin is used to select transmit or receive mode
MODE
- VDO
: 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 comparison
is OK
The positive power supply of UM3756
Designation
Description
10
11
13
-
-
NC
NC
Al3
14
-
Al4
15
10
12
Al5
16
11
13
Al6
17
12
14
Al7
16
-
-
Al8
19
13
15
osc
20
21
14
15
16
17
vss
MODE
22
16
18
RXINP
23
17
19
TX/RX OUT
24
18
20
VDD
.-.
4
UMC [ UMC CORPORATION ]
