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FlashFlex51 MCU
SST89C54 / SST89C58
初步规格
引脚分配
P1.1 ( T2 EX )
P0.0 ( AD0 )
P0.1 ( AD1 )
P0.2 ( AD2 )
( T2), P1.0
( T2 EX ) P1.1
P1.2
P1.3
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
VSS
1
2
3
4
5
6
7
40
39
38
37
36
35
34
VDD
P1.4
P1.3
P0.3 ( AD3 )
P1.0 (T2)的
P0.1 ( AD1 )
P0.2 ( AD2 )
P0.3 ( AD3 )
P0.4 ( AD4 )
P0.5 ( AD5 )
P0.6 ( AD6 )
P0.7 ( AD7 )
EA #
ALE / PROG #
PSEN #
P2.7 ( A15 )
P2.6 ( A14 )
P2.5 ( A13 )
P2.4 ( A12 )
P2.3 (A11)
P2.2 (A10)
P2.1 (A9)
P2.0 (A8)
344 ILL F18.1
V
DD
NC
P0.0 ( AD0 )
P1.2
1
2
P0.4 ( AD4 )
P0.5 ( AD5 )
P0.6 ( AD6 )
P0.7 ( AD7 )
EA #
NC
ALE / PROG #
PSEN #
P2.7 ( A15 )
P2.6 ( A14 )
P2.5 ( A13 )
P1.5
P1.6
P1.7
RST
(RXD) P3.0
NC
(TXD) P3.1
( INT0 # ) P3.2
( INT1 # ) P3.3
( T0 ) P3.4
(T1), P3.5
44 43 42 41 40 39 38 37 36 35 34
33
1
2
3
4
5
6
7
8
9
10
11
32
31
30
40引脚PDIP
8顶视图33
32
9
10
11
12
13
14
15
16
17
18
19
20
31
30
29
28
27
26
25
24
23
22
21
3
4
5
6
7
44引脚TQFP
顶视图
29
28
27
26
25
24
23
12 13 14 15 16 17 18 19 20 21 22
NC
(A8) P2.0
(A9) P2.1
(A10) P2.2
(A11) P2.3
( WR # ) P3.6
( RD # ) P3.7
( A12 ) P2.4
XTAL2
XTAL1
V
SS
344 ILL F19.1
F
IGURE
1: P
IN
A
SSIGNMENTS FOR
40-P
IN
P
LASTIC
DIP
PI -P
ACKAGE
P1.1 ( T2 EX )
P1.0 (T2)的
F
IGURE
2: P
IN
A
SSIGNMENTS FOR
44-P
IN
TQFP
TQJ -P
ACKAGE
P0.0 ( AD0 )
P0.1 ( AD1 )
P0.2 ( AD2 )
P0.3 ( AD3 )
8
9
10
P1.4
P1.3
P1.2
6
P1.5
P1.6
P1.7
RST
(RXD) P3.0
NC
(TXD) P3.1
( INT0 # ) P3.2
( INT1 # ) P3.3
( T0 ) P3.4
(T1), P3.5
7
8
9
10
11
12
13
14
15
16
5
4
3
2 1 44 43 42 41 40
39
38
37
36
P0.4 ( AD4 )
P0.5 ( AD5 )
P0.6 ( AD6 )
P0.7 ( AD7 )
EA #
NC
ALE / PROG #
PSEN #
P2.7 ( A15 )
P2.6 ( A14 )
P2.5 ( A13 )
V
DD
NC
11
12
13
14
15
16
44引脚PLCC
顶视图
35
34
33
32
31
30
17
29
18 19 20 21 22 23 24 25 26 27 28
( WR # ) P3.6
( RD # ) P3.7
XTAL2
XTAL1
NC
(A8) P2.0
(A9) P2.1
(A10) P2.2
(A11) P2.3
( A12 ) P2.4
V
SS
F
IGURE
3: P
IN
A
SSIGNMENTS FOR
44-P
IN
PLCC
NJ -P
ACKAGE
注: NC引脚必须悬空。
2000硅存储技术公司
344 ILL F20.1
5
344-2 8/00