ML14469
Addressable Asynchronous
Receiver/Transmitter
CMOS
Legacy Device:
Motorola MC14469
The ML14469 receives one or two 11–bit words in a serial data
stream. One of the incoming words contains the address and when the
address matches, the ML14469 then transmits information in two
11–bit word data streams. Each of the transmitted words contains
eight data bits, an even parity bit, and start and stop bits.
The received word contains seven address bits with the address of
the ML14469 set on seven pins. Therefore, 2
7
or 128 units can be
interconnected in simplex or full–duplex data transmission. In addi-
tion to the address received, seven command bits may be received for
general–purpose data or control use.
The ML14469 finds application in transmitting data from remote
analog–to–digital converters, remote MPUs, or remote digital trans-
ducers to the master computer or MPU.
•
•
•
•
•
•
•
•
•
Supply Voltage Range: 4.5 V to 18 V
Low Quiescent Current: 75 µA Maximum @ 5 V 25°C
,
Guaranteed Data Rates to 4800 Baud @ 5 V to 9600 Baud @ 12 V
,
Receive — Serial to Parallel
Transmit — Parallel to Parallel
Transmit and Receive Simultaneously in Full Duplex
Crystal or Resonator Operation for On–Chip Oscillator
See Application Note AN806A
Chip Complexity: 1200 FETs or 300 Equivalent Gates
Operating Temperature Range TA = –40° to +85°C
PIN ASSIGNMENTS
P DIP
RE
S
ET
O
S
C2
OSC1
OSC2
RESET
A0
A1
A2
A3
A4
A5
A6
ID0
ID1
ID2
ID3
ID4
ID5
ID6
ID7
RI
V
SS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
VDD
C0
C1
C2
C3
C4
C5
C6
CS
VAP
SEND
S0
S1
S2
S3
S4
S5
S6
S7
TRO
40
1
P DIP 16 = QP
PLASTIC DIP
CASE 711
44
1
PLCC 44 = -4P
PLCC PACKAGE
CASE 777
CROSS REFERENCE/ORDERING INFORMATION
PACKAGE
MOTOROLA
LANSDALE
P DIP 40
MC14469P
ML14469QP
PLCC 44
MC14469FN
ML14469-4P
Note:
Lansdale lead free (Pb) product, as it
becomes available, will be identified by a part
number prefix change from
ML
to
MLE.
PLCC
O
S
C1
NC
VDD
C1
C2
A2
A3
A4
A5
A6
NC
ID0
ID1
ID2
ID3
ID4
6 5 4
3
2 1 44 43 42 41 40
7
39
8
38
9
37
10
36
11
35
12
34
13
33
14
32
15
31
16
30
17
29
18 19 20 21 22 23 24 25 26 27 28
NC
TRO
ID5
ID6
ID7
RI
V
SS
S
7
S
6
S
5
S
4
A0
C0
C
3
A1
C4
C5
C6
CS
VAP
NC
SEND
S0
S1
S2
S3
NC = NO CONNECTION
Page 1 of 10
www.lansdale.com
Issue 0
LANSDALE [ LANSDALE SEMICONDUCTOR INC. ]
