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PDF ( 数据手册 , 数据表 ) STC89C51RD

零件编号 STC89C51RD
描述 MCU
制造商 STC MCU
LOGO STC MCU LOGO 



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STC89C51RD 数据手册, 描述, 功能
www.STCMCU.com
Mobile:(86)13922809991
Tel:86-755-82948412
Fax:86-755-82905966
SSTTCC8899LCE5511DRMRaCCCta/UR/RSDhD+Le+eismtseeirtrieeides.sMMCCUU
STC
STC MCU Limited
www.STCMCU.com
STC MCU Limited.
Update date: 2011-7-25
websitewww.STCMCU.com








STC89C51RD pdf, 数据表
www.STCMCU.com
Mobile:(86)13922809991
Tel:086-755-82948412
Fax:86-755-82905966
1.3 Pin Configurations of STC89C51RC/RD+ series MCU
1.3.1 Pin Configurations of STC89C51RC/RD+ series HD Version MCU
There are not P4.6/P4.5/P4.4 ports in HD version MCU
T2/P1.0 1
40 Vcc
T2EX/P1.1 2
39 P0.0
P1.2 3
38 P0.1
P1.3 4
37 P0.2
P0.3 34
22 P2.4
P0.2 35
21 P2.3
P0.1 36
20 P2.2
P0.0 37
Vcc 38
LQFP-44
19 P2.1
18 P2.0
INT3/P4.2 39
T2/P1.0 40
PQFP-44
17 P4.0
16 Gnd
T2EX/P1.1 41 36 I/O Ports 15 XTAL1
P1.2 42
14 XTAL2
P1.3 43
13 RD/P3.7
ited.P1.4 44
12 WR/P3.6
P1.4
P1.5
P1.6
P1.7
RST
RxD/P3.0
TxD/P3.1
INT0/P3.2
INT1/P3.3
T0/P3.4
T1/P3.5
WR/P3.6
RD/P3.7
XTAL2
XTAL1
Gnd
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
36 P0.3
35 P0.4
34 P0.5
33 P0.6
32 P0.7
31 EA
30 ALE
29 PSEN
28 P2.7
27 P2.6
26 P2.5
25 P2.4
24 P2.3
23 P2.2
22 P2.1
21 P2.0
CU LimP1.5
P1.6
P1.7
MRST
RxD/P3.0
INT2/P4.3
TxD/P3.1
STC INT0/P3.2
INT1/P3.3
T0/P3.4
T1/P3.5
7
8
9
10
11
12
13
14
15
16
17
PLCC-44
36 I/O Ports
39 P0.4
38 P0.5
37 P0.6
36 P0.7
35 EA
34 P4.1
33 ALE
32 PSEN
31 P2.7
30 P2.6
29 P2.5
About operation voltage/clock frequency: RC/RD+ series MCU are real 6T MCU, which are full compatible
with traditonal 12 clocks per machine cycle
6T core If HD vesion 5V MCU don't double speed, its external clock will divide by 2 in order to lower the
actually
frequency
Operation
Voltage
External
Clock
Single speed Operation Double speed Operation
Correspond to Clock in Correspond to Clock in
common 8052 actual core common 8052 actual core
IAP/ISP
5.5V - 4.5V 0 - 44MHz 0 - 44MHz 0 - 20MHz 0 - 80MHz 0 - 40MHz readprogramerase
5.5V - 3.8V 0 - 33MHz 0 - 33MHz
0-
16.5MHz
0 - 66MHz 0 - 33MHz
readprogramerase
5.5V - 3.6V 0 - 24MHz 0 - 24MHz 0 - 12MHz 0 - 48MHz 0 - 24MHz readprogramerase
5.5V - 3.4V 0 - 20MHz 0 - 20MHz 0 - 10MHz 0 - 40MHz 0 - 20MHz read(not program/erase)
3V MCU Operation Voltage range:3.6~2.0V. When operation voltage is 2.3V ~ 1.9V, ISP/IAP do not
be ereased and programmed.
 STC MCU Limited.
websitewww.STCMCU.com







STC89C51RD equivalent, schematic
www.STCMCU.com
Mobile:(86)13922809991
1.8 Package Dimension Drawings
LQFP-44 OUTLINE PACKAGE
Tel:086-755-82948412
Fax:86-755-82905966
D (12mm)
D1 (10mm)
44 34
1
11
12
b
e
0.80mm
22
STC0.05MAX
GATE PLANE
SEATING PLANE
θ0
L
L1
33
23
MCU
VARIATIONS (ALL DIMENSIONS SHOWN IN MM
SYMBOLS MIN. NOM MAX.
A - - 1.60
A1 0.05 - 0.15
A2 1.35 1.40 1.45
c1 0.09 - 0.16
D 12.00
Limited.D1 10.00
E 12.00
E1 10.00
e 0.80
b(w/o
1 plating)
0.25
0.30
L 0.45 0.60
0.35
0.75
L1 1.00REF
θ0 00 3.50 70
NOTES:
1.JEDEC OUTLINE:MS-026 BSB
2.DIMENSIONS D1 AND E1 D0 NOT
INCLUDE MOLD PROTRUSION.
ALLOWBLE PROTRUSION IS
0.25mm PER SIDE. D1 AND E1 ARE
MAXIMUM PLASTIC BODY SIZE
DIMENSIONS IMCLUDING MOLD
MISMATCH.
3.DIMENSION b DOES NOT INCLUDE
DAMBAR PROTRUSION.ALLOWBLE
DAMBAR PROTRUSION SHALL NOT
CAUSE THE LEAD WIDTH TO EXCEED
THE MAXIMUN b DIMNSION BY MORE
THAN 0.08mm.
16 STC MCU Limited.
websitewww.STCMCU.com










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