ETC2 M3EB-4I 3 states encoder Datasheet

一華半導體股份有限公司
EN/DECODER
MOSDESIGN SEMICONDUCTOR CORP.
M3EB
3 STATES ENCODER
3 態編碼 IC
GENERAL DESCRIPTION 功能敘述
The M3EB is a CMOS ASIC decoder. It will en-code 12 parallel input and serially transmit them to the output when D0 ~ D3
depressed. Paired with either M3D or M3DB. These address inputs are 3 states i.e. LOW(0)、OPEN(X)、HIGH(1).
FEATURES 產品特長
• Built-in IR carrier : suffix-I.
• Up to 310 =59,049 codes, “0”、”X”、”1” Tri-states.
• Single resistor oscillator.
• Data transmit over 30 second auto power off.
• 2 or 4 direct date transmit ( internal pull-low resistor ).
• M3EB-2:10 address,2 data.
• M3EB-4:8 address,4 data.
APPLICATIONS 產品應用
• Car/home alarm system, garage control etc..
BLOCK DIAGRAM 功能方塊圖
OSC
Freq
Divider
Oscillator
Output
Driver
DOUT
A0
A9
Input
Control
Central
IR
Control
Logic unit
Carrier
D0
D1
*All specs and applications shown above subject to change without prior notice.
( 以上電路及規格僅供參考,本公司得逕行修正 )
1/7
2004-03-02
一華半導體股份有限公司
EN/DECODER
MOSDESIGN SEMICONDUCTOR CORP.
M3EB
3 STATES ENCODER
3 態編碼 IC
ABSOLUTE MAXIMUM RATING
(TA=25℃)
Parameter
Supply Voltage
Input Voltage
Operating Temperature
Storage Temperature
Rating
-0.3 to 15
Unit
V
-0.2~VDD +0.2
V
-20 to 75
℃
-50 to 125
℃
ELECTRICAL CHARACTERISTICS
Characteristics
Operating Voltage
Sym.
VDD
Min.
2.4
Typ.
─
Max.
15
Unit
V
Quiescent Current
ISB
─
0.1
1
μA
Operating Current
IOP
─
0.1
No load
IO
─
2
0.5
─
mA
Output Drive Current
mA
@VDS=1.2V
VIH
VDD –0.2
VDD
VDD
VIL
VSS
─
VSS
VSS +0.2
─
Input Voltage
Oscillator Frequency
Fosc
76
Conditions
V
KHz
External±30%
PIN DESCRIPTION
No.
1~8
9
M3EB
10~11
M3F
Description
A0~A7
3 states address inputs
VSS
Negative power supply
A8/D0,A9/D1 3 states address inputs
12~13
D2,D3
Direct data transmission enable
A3
A11 / D3
14
OSC
Oscillator input
A4
A10 / D2
15
16
DOUT
VDD
Data output
Positive power supply
A5
A9 / D1
A6
A8 / D0
A0
16
VDD
A1
DOUT
A2
OSC
A7
2/7
1
8
9
2004-03-02
VSS
一華半導體股份有限公司
EN/DECODER
MOSDESIGN SEMICONDUCTOR CORP.
M3EB
3 STATES ENCODER
3 態編碼 IC
TIMING WAVEFORM
(1) Bit format
1
64 65
191 192
256
320 321
447 448
512
OSC
"0"
64 CLOCKS
192 CLOCKS
"OPEN"
64 CLOCKS
192 CLOCKS
64 CLOCKS
192 CLOCKS
"1"
64 CLOCKS
192 CLOCKS
192 CLOCKS
64 CLOCKS
192 CLOCKS
64 CLOCKS
(2) TIMING DIAGRAM
TE
D0~D3
( M3E,-H )
D0~D3
( M3E,-L )
DO
1st word
12 Bits
SYNC
2nd word
4th word
4 Bits
SYNC
M3EB F-V CURVE
550
180K
200K
450
240K
FREQ ( KHz )
300K
350
360K
470K
560K
250
680K
750K
150
820K
910K
50
2
7
12
17
VDD ( Volt )
3/7
2004-03-02
一華半導體股份有限公司
EN/DECODER
MOSDESIGN SEMICONDUCTOR CORP.
M3EB
3 STATES ENCODER
3 態編碼 IC
OPERATING FLOWCHART
Power ON
Stand-by
N
TEB
depressed?
4 words data
transmitted
N
TEB still
depressed?
Y
4/7
2004-03-02
一華半導體股份有限公司
EN/DECODER
MOSDESIGN SEMICONDUCTOR CORP.
M3EB
3 STATES ENCODER
3 態編碼 IC
RECONNENDED OSCILLATOR PARAMETERS
Rosc (KΩ)
180
M3EB/DB (KHz)
388
200
352
240
300
294
234
360
196
470
560
152
128
680
102
750
820
94
88
910
74
DATA OUTPUT
M3EB
(D0~D3)
X (OPEN)
1 (VDD)
POWER ON
M3DB
(D0~D3)
0 (VSS)
1 (VDD)
0 (VSS)
Freq-Rosc Chart
( @Vdd=12V )
400
FREQ ( KHz )
300
200
M3EB/DB
100
0
0
100
200
300
400
500
600
700
800
900
1000
Rosc ( KO)
5/7
2004-03-02
一華半導體股份有限公司
EN/DECODER
MOSDESIGN SEMICONDUCTOR CORP.
M3EB
3 STATES ENCODER
3 態編碼 IC
APPLICATION DIAGRAM 參考電路圖
M3EB-2
VDD
A0
0
IR / RF
1
IR / RF
1
0
A0
DOUT
VDD
1
16
A1
M3EB-4
VDD
VDD
1
16
DOUT
A1
Rosc
OSC
A2
Rosc
OSC
A2
D3
D3
A3
A3
D2
D2
A4
A4
A9/D1
A9/D1
A5
A5
A8/D0
A8/D0
A6
A6
8
A7
VSS
9
8
A7
9
VSS
IR 內建發射
IR 內建發射
VDD
VDD
VDD
M3EB-2I
A0
0
M3EB-4I
VDD
1
1
1
16
A0
DOUT
A1
0
1
16
DOUT
A1
Rosc
OSC
A2
Rosc
OSC
A2
D3
A3
D3
A3
D2
A4
A9/D1
A5
D2
A4
A9/D1
A5
A8/D0
A8/D0
A6
A7
A6
8
9
VSS
A7
6/7
8
9
VSS
2004-03-02
一華半導體股份有限公司
EN/DECODER
MOSDESIGN SEMICONDUCTOR CORP.
M3EB
3 STATES ENCODER
3 態編碼 IC
APPLICATION DIAGRAM 參考電路圖 (SOP PACKAGE)
M3EB-2S
VDD
A0
0
IR / RF
1
IR / RF
1
0
A0
DOUT
VDD
1
16
A1
M3EB-4S
VDD
VDD
1
16
DOUT
A1
Rosc
OSC
A2
Rosc
OSC
A2
D3
D3
A3
A3
D2
D2
A4
A4
A9/D1
A9/D1
A5
A5
A8/D0
A8/D0
A6
A6
8
A7
VSS
9
8
A7
9
VSS
IR 內建發射
IR 內建發射
VDD
VDD
VDD
M3EB-2IS
A0
0
M3EB-4IS
VDD
1
1
1
16
A0
DOUT
A1
0
1
16
DOUT
A1
Rosc
OSC
A2
Rosc
OSC
A2
D3
A3
D3
A3
D2
A4
A9/D1
A5
D2
A4
A9/D1
A5
A8/D0
A8/D0
A6
A7
A6
8
9
VSS
A7
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8
9
VSS
2004-03-02
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