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AT89S53 Datasheet(PDF) 26 Page - List of Unclassifed Manufacturers

Part # AT89S53
Description  State-of-the Art Evaluation Module for 8, 20 & 40-pin Microcontrollers
PDF  26 Pages
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Manufacturer  ETC2 [List of Unclassifed Manufacturers]
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AT89S53 Datasheet(HTML) 26 Page - List of Unclassifed Manufacturers

Back Button AT89S53 Datasheet HTML 18Page - List of Unclassifed Manufacturers AT89S53 Datasheet HTML 19Page - List of Unclassifed Manufacturers AT89S53 Datasheet HTML 20Page - List of Unclassifed Manufacturers AT89S53 Datasheet HTML 21Page - List of Unclassifed Manufacturers AT89S53 Datasheet HTML 22Page - List of Unclassifed Manufacturers AT89S53 Datasheet HTML 23Page - List of Unclassifed Manufacturers AT89S53 Datasheet HTML 24Page - List of Unclassifed Manufacturers AT89S53 Datasheet HTML 25Page - List of Unclassifed Manufacturers AT89S53 Datasheet HTML 26Page - List of Unclassifed Manufacturers  
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8
A
B
C
D
8
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4
3
2
1
D
C
B
A
Title
Number
Revision
Size
A3
Date:
4-Sep-1998
Sheet
of
File:
C:\PROTPCB\JOHN\40OEM\NEWEVAL1.SCH
Drawn By:
1
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8
9
10
11
12
13
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15
16
17
18
19
20
U1
89C2051
SL1
1K
S1
1
2
3
LINK1
1
2
3
LINK2
BZ1
PIEZO
R2
2K2
R3
10K
VCC
SL2
1K
XT1
CRYSTAL
C1
33pF
C2
33pF
S2
S3
S4
VCC
TR1
BC337
TR2
BC337
TXD DATA
RXD DATA
1
2
3
4
5
6
7
8
9
CON3
RS232 D TYPE F
D3
1N4148
R9
10K
R4
10K
C7
10uF 10V
S5
TR3
BC327
R5
10K
D4
1N4148
D5
1N4148
R1
1K
C8
100nF
65uA
CURRENT SOURCE
AREF
AIN
C9
100nF
R6
4K7
R7
4K7
D6
1N4148
D7
1N4148
VCC
R8
100K
Vin
1
+5V
3
U3
LM7805CT
C3
100nF
C4
100nF
C5
47uF 25V
1
2
3
CON4
POWER
D1
1N4002
D2
1N4002
VCC
+5V
+9V TO 25V
0V
C6
10uF 10V
1
2
3
CON5
ANALOGUE
D8
1N4148
1
2
CON7
ADAPTOR SOCKET
CON8
REMOTE PROGRAMMING
P1.5
P1.4
R10
10K
C10
10uF 10V
LINK4
R11
120R
VCC
LINK3
VCC
S6
1
2
3
LINK5
LED9
R12
1K
1
2
3
LINK6
P1.6
P1.7
A
A
B
B
C
C
RESET
C
B
A
A
B
C
C
B
A
C
B
A
LARGE NUMBERS EG: 1 DESIGNATE THE PCB COMPONENT IDENTS
OF THE PCB LINKS AND LED IDENTIFIERS
REF
AIN
0V
+5V
+V
0V
8051 LINK A & B, AVR = LINK B & C
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38
39
40
U2
89C51
1
2
3
4
5
6
7
8
9
10
CON9
CON10
1
2
3
4
5
6
7
8
9
10
CON11
CON10
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
RST
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6
P3.7
XTAL2
XTAL1
GND
RST
P1.0
P1.1
P1.2
P1.3
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
VCC
GND
VCC
GND
EA
ALE
PSEN
VCC
EA
ALE
PSEN
1
2
3
4
5
6
7
8
U4
8PIN
8 PIN SITE
1
2
3
4
CON10
CON4
1
2
3
LINK9
CON3
1
2
3
LINK10
CON3
GND
VCC
P1.5
1
2
3
LINK12
CON3
1
2
3
LINK7
CON3
1
2
3
LINK8
CON3
1
2
3
LINK11
CON3
P1.3
RST
P1.2
XTAL1
P1.4
XTAL2
P1.1
SCK2
P1.7
P1.6
C11
100nF
1
SL3
SILR8
1
SL4
SILR8
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
9v
9v+
PWR
LED
R50
470R
VCC



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