datasheet
EEWORLDEEWORLDEEWORLD
Datasheet
Part Number

Keyword

Search
Keyword

Part Number

Search
Datasheet> All Categories > Other integrated circuit (IC)> Consumption circuit> M709LB1
PDF
Preview

M709LB1

Description
INFRARED, TRANSMITTER IC, PDIP24, PLASTIC, DIP-24
CategoryOther integrated circuit (IC)    Consumption circuit   
File Size120KB，10 Pages
ManufacturerSTMicroelectronics
Websitehttp://www.st.com/
Download Datasheet Parametric Compare View All

M709LB1 Overview

INFRARED, TRANSMITTER IC, PDIP24, PLASTIC, DIP-24

M709LB1 Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerSTMicroelectronics
Parts packaging codeDIP
package instructionDIP, DIP24,.6
Contacts24
Reach Compliance Codenot_compliant
Commercial integrated circuit typesTRANSMITTER IC
JESD-30 codeR-PDIP-T24
JESD-609 codee0
Number of terminals24
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeDIP
Encapsulate equivalent codeDIP24,.6
Package shapeRECTANGULAR
Package formIN-LINE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
power supply2/5.5 V
Certification statusNot Qualified
Maximum supply voltage (Vsup)5 V
Minimum supply voltage (Vsup)2.2 V
surface mountNO
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formTHROUGH-HOLE
Terminal pitch2.54 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
transmission mediaINFRARED
width15.24 mm

M709LB1 Preview

M709L
M710L
PCM REMOTE CONTROL TRANSMITTERS (LOW VOLTAGE)
.
.
.
.
.
.
.
.
.
.
.
.
2.2V TO 5V OPERATING SUPPLY VOLTAGE
RANGE
M709L : 40 COMMANDS x 16 ADDRESSES
M710L : 64 COMMANDS x 16 ADDRESSES
ADDRESS
ORGANIZATION
PROVIDES
WIDE RANGE OF SIMULTANEOUS APPLI-
CATIONS WITHOUT INTERFERENCE BE-
TWEEN SYSTEMS
IMPROVED PCM TRANSMISSION CODE
PROVIDES EASY RECOGNITION OF FALSE
SIGNALS
”FLASH” OR ”CARRIER” PIN SELECTABLE
TRANSMISSION MODES
END OF TRANSMISSION CODE
SINGLE CONTACT MATRIX KEYBOARD
INTEGRATED ANTIBOUNCE AND
INTERLOCK
WIDE REFERENCE FREQUENCY RANGE
(445 to 510 kHz ceramic resonator)
VERY LOW POWER CONSUMPTION DUR-
ING TRANSMISSION. OUTPUT DUTY CY-
CLE 0.15% (flash mode), 0.7% (carrier mode)
FULLY COMPATIBLE WITH M491 AND M494
(In flash mode)
The reference oscillator is controlled by a cheap
ceramic or LC resonator. Two types of transmission
mode are available : ”Flash” or ”Carrier” mode.
The M709L is a simplified version of the M710L
which can only transmit 40 commands with 16
possible addresses. The M710L on the other hand
has the full system capacity : it can transmit 64
commands with 16 addresses.
The M709L and M710L are produced with CMOS
Si-gate technology and are available in 24 and
28-pin dual in-line plastic packages respectively.
DIP24
(Plastic Package)
ORDER CODE :
M709LB1
DESCRIPTION
These ICs have been developed for remote control
in consumer applications (TV, radio, video re-
corders) or in the industrial field and use a highly
reliable transmission code which has a capacity of
1024 channels. Each transmitted word is struc-
tured into 4 bits which constitute the address and
6 bits which constitute the command (64 com-
mands available). One command (1 st = 000000)
is used to transmit the ”end of transmission code ”
when the key is released. Additional bits are trans-
mitted for synchronization of transmitter and re-
ceiver clocks and for security checks. The address
organization provides a wide range of simultane-
ous applications without interference between sys-
tems. The receiver accepts the decoded command
only if the transmitted address matches the ad-
dress selected at the receiver. 16 addresses are
available for this purpose.
March 1995
DIP28
(Plastic Package)
ORDER CODE :
M710LB1
1/10
M709L - M710L
PIN CONNECTIONS
DIP24 - M709L
TRANSMISSION
MODE
OSC. IN
OSC. OUT
E
D
C
B
A
K
I
L
M
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
V
DD
OUTPUT
V
SS
X
Y
ADDRESS
W
Z
TEST
Q
P
O
K
12
13
14
17
16
15
N
M
N.C.
TRANSMISS ION
MODE
OSC. IN
OSC. OUT
H
G
F
E
D
C
B
A
DIP28 - M710L
1
2
3
4
5
6
7
8
9
10
11
28
27
26
25
24
23
22
21
20
19
18
V
DD
OUTPUT
V
SS
X
Y
ADDRESS
W
Z
TEST
Q
709L-01.EPS / 709L-02.EPS
709L-03.EPS / 709L-04.EPS
P
O
N
I
L
Note :
The test pin must be connected to V
SS
.
FUNCTIONAL DESCRIPTION
V
DD
24
V
SS
22
OSC. IN
2
OSC. OUT
3
TEST
17
X 21
Y 20
ADDRESS
W 19
Z 18
TRANSMISSION MODE 1
E
4
D
5
C
6
B
7
A
8
K
9
I
10
1
8
16
24
32
33
34
35 36
37
38
L
11
2
M
12
3
N
O
P
15
6
Q
16
7
15
23
31
39
M709L
23 OUTPUT
13 14
4
5
V
DD
28
V
SS
26
OSC. IN
2
OSC. OUT
3
TEST
21
X 25
Y 24
ADDRESS
W 23
Z 22
TRANSMISSION MODE 1
H
4
G
5
F
6
E
7
D
8
C
9
B
10
A
11
K
12
I
13
1
8
16
24
32
40
48
56
57
58
59
60
61
62
L
14
2
M
16
3
N
17
4
O
18
5
P
19
6
Q
20
7
15
23
31
39
47
55
63
M710L
27 OUTPUT
2/10
M709L - M710L
BLOCK DIAGRAM
ROW INPUTS
COLUMN INPUTS
ENABLE
KEYBOA RD LOGIC
OSCILLATOR
OSC. IN
OSC. OUT
ADDRESS
TRANSMISSION CODE LATCH
DVIDE RS AND
CLOCK GENERATOR
OUTPUT
TRANSMIS SION SEQUENCE LOGIC
END OF TRANSMISSION
LOGIC
709L-03.EPS
TRANSMISSIO NMODE
TEST
ABSOLUTE MAXIMUM RATINGS
Symbol
V
DD
V
I
|I
O
|
P
tot
T
oper
T
stg
Supply Voltage
Input Voltage
IR Output Current ( t< 50µs)
Total Package Power Dissipation
Operating Temperature
Storage Temperature
Parameter
Value
-0.3 to 5.5
-0.3 to V
DD
+ 0.3
10
200
0, +70
-55, +125
Unit
V
V
mA
o
o
C
C
Stresses above those listed under ”Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress rating only and
functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not
implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.
RECOMMENDED OPERATING CONDITIONS
Symbol
V
DD
V
I
|I
O
|
f
ref
T
oper
r
s
r
p
R
s
Supply Voltage
Input Voltage
IR Output Current ( t< 50µs)
Reference Frequency
Operating Temperature
Serial Resistance of a Closed Key Contact
Parallel Resistance of Open Key Contact
Serial Resistance of the Ceramic Resonator
Parameter
Value
2.2 to 5
0 to V
DD
max. 2.5
445 to 510
0 to 70
max. 2.5
min. 2.2
max. 20
Unit
V
V
mA
kHz
o
C
709L-02.TBL
kΩ
MΩ
Ω
3/10
709L-01.TBL
mW
M709L - M710L
STATIC ELECTRICAL CHARACTERISTICS
(over recommended operating conditions)
Typical values are at 9V and T
AMB
= 25
o
C
Symbol
I
DD
Parameter
Supply Current
Pins
Test Conditions
V
DD
= 5V, IR Output Open :
Stand-by
Operating (one key closed)
V
DD
= 3V, V
OH
= 2V
V
DD
= 2.2V, V
OH
= 1V
V
DD
= 3V, V
OL
= 1V
V
DD
= 2.2V, V
OL
= 1V
Address Selection Inputs
Trans. Mode Test Pin
V
DD
= 3V, V
IL
= 3V
(oscillator running)
V
DD
= 3V, V
IN
= 0 to 3V
-1
-0.3
1
0.3
Min.
Typ. Max.
3
4
-2
-0.5
2
0.5
150
1
10
7
Unit
µA
mA
mA
mA
mA
mA
µA
µA
709L-03.TBL
709L-04.TBL
I
OH
I
OL
I
IH
I
L
High State
IR Output Current
Low State
IR Output Current
Input High Current
Input Leakage
Current
TRUTH TABLE
Command
No
A B
0
END OF
1
X
2
X
3
X
4
X
5
X
6
X
7
X
8
X
9
X
10
X
11
X
12
X
13
X
14
X
15
X
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
C D E
F
TRANSMISSION
G
Input Code
H K
I
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
L
M
N
O
P
Q
Command Bits
C1 C2 C3 C4 C5 C6
0
0
0
0
0
0
1
0
0
0
0
0
0
1
0
0
0
0
1
1
0
0
0
0
0
0
1
0
0
0
1
0
1
0
0
0
0
1
1
0
0
0
1
1
1
0
0
0
0
0
0
1
0
0
1
0
0
1
0
0
0
1
0
1
0
0
1
1
0
1
0
0
0
0
1
1
0
0
1
0
1
1
0
0
0
1
1
1
0
0
1
1
1
1
0
0
0
0
0
1
0
0
1
0
0
1
0
0
0
1
0
1
0
0
1
1
0
1
0
0
0
0
1
1
0
0
1
0
1
1
0
0
0
1
1
1
0
0
1
1
1
1
0
0
0
0
0
1
0
0
1
0
0
1
0
0
0
1
0
1
0
0
1
1
0
1
0
0
0
0
1
1
0
0
1
0
1
1
0
0
0
1
1
1
0
0
1
1
1
1
0
0
4/10
M709L - M710L
TRUTH TABLE
(continued)
Command
No
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
A
B
C
D
E
X
X
X
X
X
X
X
X
F
Input Code
G H K
I
X
X
L
M
N
O
P
Q
Command Bits
C1 C2 C3 C4 C5 C6
0
0
0
1
0
0
1
0
0
1
0
0
0
1
0
1
0
0
1
1
0
1
0
0
0
0
1
1
0
0
1
0
1
1
0
0
0
1
1
1
0
0
1
1
1
1
0
0
0
0
0
1
0
1
1
0
0
1
0
1
0
1
0
1
0
1
1
1
0
1
0
1
0
0
1
1
0
1
1
0
1
1
0
1
0
1
1
1
0
1
1
1
1
1
0
1
0
0
0
0
1
1
1
0
0
0
1
1
0
1
0
0
1
1
1
1
0
0
1
1
0
0
1
0
1
1
1
0
1
0
1
1
0
1
1
0
1
1
1
1
1
0
1
1
0
0
0
1
1
1
1
0
0
1
1
1
0
1
0
1
1
1
1
1
0
1
1
1
0
0
1
1
1
1
1
0
1
1
1
1
0
1
1
1
1
1
1
1
1
1
1
1
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
DESCRIPTION
The signals are transmitted with infrared light using
pulse code modulation. Each word consists of 12
bits. The binary information of a bit is determined
by the time interval between two pulses.
If ”T” is the time base, the bits are coded as follows :
Odd bits (1, 3, etc)
0=T
1 = 2T
T
”0”
2T
”1”
709L-06.EPS / 709L-07.EPS
Even bits (2, 4, etc)
0=T
1 = 3T
T
”0”
3T
”1”
The different code introduced for the even and odd
”1s” improves the capability to recognize false
codes at the receiver end. For example the double
error which can cause the exchange ”10” with ”01”
is easily detected.
A parity bit is also added in order to further increase
the reliability of the transmission. This bits is ”1” if
the number of transmitted ”1s” is even while it is ”0”
if the number of transmitted ”1s” is odd.
In addition, every word contains a preliminary
pulse, a start pulse and a stop pulse. The spacing
between the preliminary and the start pulse is 4T.
This is followed after 1T by 11 data pulses (one
parity bit), and terminated after 4T interval by a stop
pulse.
Consequently, a word in which the binary digit 0
occurs ten times has a total duration of 21T.
A word containing ten ”1s” has a duration of 36T.
5/10
709L-05.TBL
More (Only the first 5 pages are displayed. Please Download Datasheet to view the full content.) >

M709LB1 Related Products

M709LB1 M710LB1
Description INFRARED, TRANSMITTER IC, PDIP24, PLASTIC, DIP-24 INFRARED, TRANSMITTER IC, PDIP28, PLASTIC, DIP-28
Is it lead-free? Contains lead Contains lead
Is it Rohs certified? incompatible incompatible
Maker STMicroelectronics STMicroelectronics
Parts packaging code DIP DIP
package instruction DIP, DIP24,.6 DIP, DIP28,.6
Contacts 24 28
Reach Compliance Code not_compliant not_compliant
Commercial integrated circuit types TRANSMITTER IC TRANSMITTER IC
JESD-30 code R-PDIP-T24 R-PDIP-T28
JESD-609 code e0 e0
Number of terminals 24 28
Maximum operating temperature 70 °C 70 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code DIP DIP
Encapsulate equivalent code DIP24,.6 DIP28,.6
Package shape RECTANGULAR RECTANGULAR
Package form IN-LINE IN-LINE
Peak Reflow Temperature (Celsius) NOT SPECIFIED NOT SPECIFIED
power supply 2/5.5 V 2/5.5 V
Certification status Not Qualified Not Qualified
Maximum supply voltage (Vsup) 5 V 5 V
Minimum supply voltage (Vsup) 2.2 V 2.2 V
surface mount NO NO
technology CMOS CMOS
Temperature level COMMERCIAL COMMERCIAL
Terminal surface Tin/Lead (Sn/Pb) Tin/Lead (Sn/Pb)
Terminal form THROUGH-HOLE THROUGH-HOLE
Terminal pitch 2.54 mm 2.54 mm
Terminal location DUAL DUAL
Maximum time at peak reflow temperature NOT SPECIFIED NOT SPECIFIED
transmission media INFRARED INFRARED
width 15.24 mm 15.24 mm

Recommended Resources

Thyristor circuit using integrated flip-flop TD1028

Shuangyan brand BC-137A, BY-140A refrigerator circuit

JS13 type transistor time relay circuit

Amplifier timer.gif

Multi-core cable break point detector

Homemade AC automatic voltage stabilizer

[EEWORLD 29th] The community star of August 2011 is announced!
Thank you all for your hard work for the forum. Here we would like to recognize some friends who have made outstanding contributions in August!Outstanding Moderator of AugustForum IDResponsible sectio...
EEWORLD社区 Suggestions & Announcements
High-performance machine learning makes edge computing more powerful
In today's world where technology is changing at a rapid pace, research in artificial intelligence (AI) has made amazing progress, and the uses of computers are constantly expanding. Machines can perf...
小螃蟹呀 ARM Technology
[AN-774 Application Note] Implementing Automatic Offset Function on AD9981
Introduction: AD9981 is the first display electronics device (DEPL) to integrate automatic offset adjustment....
EEWORLD社区 ADI Reference Circuit
Knob-type keyboard and its interface technology with AT89C52
Knob-type keyboard and its interface technology with AT89C52...
蓝色枫 Microchip MCU
EEWORLD University Hall ---- Demonstration of environmental sensor works based on KW41Z
Environmental sensor demonstration based on KW41Z : https://training.eeworld.com.cn/course/4141...
liyuyao001 DIY/Open Source Hardware
Summary of Proteus software information and video tutorials
[color=#800080][/color][color=#800080][/color]Video tutorials: Proteus_Tutorial 2—Modifying components.pdf Proteus_Real-time dynamic simulation with single-chip microcomputer.pdf Proteus_Self-study tu...
yuandayuan6999 PCB Design
Shortcut:   L0 L1 L2 L3 L4 L5 L6 L7 L8 L9 LA LB LC LD LE LF LG LH LI LJ LK LL LM LN LO LP LQ LR LS LT LU LV LW LX LY LZ M0 M1 M2 M3 M4 M5 M6 M7 M8 M9 MA MB MC MD ME MF MG MH MI MJ MK ML MM MN MO MP MQ MR MS MT MU MV MW MX MY MZ N0 N1 N2 N3 N4 N5 N6 N7 N8 NA NB NC ND NE NF NG NH NI NJ NK NL NM NN NO NP NQ NR NS NT NU NV NX NZ O0 O1 O2 O3 OA OB OC OD OE OF OG OH OI OJ OK OL OM ON OP OQ OR OS OT OV OX OY OZ P0 P1 P2 P3 P4 P5 P6 P7 P8 P9 PA PB PC PD PE PF PG PH PI PJ PK PL PM PN PO PP PQ PR PS PT PU PV PW PX PY PZ Q1 Q2 Q3 Q4 Q5 Q6 Q8 Q9 QA QB QC QE QF QG QH QK QL QM QP QR QS QT QV QW QX QY R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 RA RB RC RD RE RF RG RH RI RJ RK RL RM RN RO RP RQ RR RS RT RU RV RW RX RY RZ

Popular Components

  1. MCR03ERTJ750
  2. 1624948
  3. SMR5473J50J01L165CBULK
  4. 177-710-1-25P4J5-24PC
  5. UMP-12/2.1-Q12-C
  6. SL1-012-SH085/02-77
  7. 255-102-HB10Q
  8. BLU0805M-2370-BT50
  9. DZ23C3V0
  10. A2547HJ-8P-GY
  11. C3030WR-S-2x7P-G30
  12. MFR0W8F9101A50

Popular Articles

  1. SPI driver example in LPC1768 - based on SST25VF016B
  2. From the first tree to the flourishing silicon forest, don’t forget the tree planter while enjoying the shade
  3. 2022 iPhone SE: Mainly upgraded processor, no major design changes
  4. Mobileye Launches New EyeQ® Ultra™ System-on-Chip for Autonomous Vehicles
  5. Will OPPO be able to grasp the pulse of high-end products?
  6. s3c2440 ARM9 bare metal driver first article - GPIO driver (C)
  7. Five connection methods of LCR tester
  8. Teach you step by step how to use a digital multimeter. You won’t succeed if you don’t know how!
  9. FG25 sub-GHz SoC with long transmission distance, large memory and high security is now generally available
  10. Schematic diagram of the speed regulation circuit of a DC motor

Technical ResourceMore

  1. Mitsubishi PLC QCPU (Q mode) / QnACPU Programming Manual (Common Instructions)
  2. Anti-interference technology in control engineering
  3. A realization of uart algorithm based on VHDL
  4. TTL and CMOS
  5. Research and design of vehicle anti-collision monitoring and warning system
  6. A method to extend the Doppler frequency shift tolerance in the system
  7. Electrical and Electronic Experiments
  8. Application of processing technology in moving target tracking and detection
  9. Nonlinearity measurement of small-range acceleration sensor
  10. MAX2870 Chinese Data Sheet

EEWorld
subscription
account

EEWorld
service
account

Automotive
development
circle

Robot
development
community

About Us Customer Service Contact Information Datasheet Sitemap LatestNews
Index Files: 2172  393  358  1612  280  44  8  33  6  59 
Datasheet   0 1 2 3 4 5 6 7 8 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Room 1530, 15th Floor, Building B, No. 18 Zhongguancun Street, Haidian District, Beijing Telephone: (010) 82350740 Postal Code: 100190
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved 京ICP证060456号 京ICP备10001474号-1 电信业务审批[2006]字第258号函 京公网安备 11010802033920号