FlashFlex51 MCU
SST89E52RD2/RD / SST89E54RD2/RD / SST89E58RD2/RD
SST89V52RD2/RD / SST89V54RD2/RD / SST89V58RD2/RD
Data Sheet
(T2) P1.0
(T2 EX) P1.1
(ECI) P1.2
(CEX0) P1.3
(CEX1 / SS#) P1.4
(CEX2 / MOSI) P1.5
(CEX3 / MISO) P1.6
(CEX4 / SCK) 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
VDD
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)
XTAL2
XTAL1
(WR#) P3.6
VSS
(A8) P2.0
(A9) P2.1
(A10) P2.2
(A11) P2.3
(RD#) P3.7
(A12) P2.4
P4.0
(CEX2 / MOSI) P1.5
(CEX3 / MISO) P1.6
(CEX4 / SCK) P1.7
RST
(RXD) P3.0
INT2#/P4.3
(TXD) P3.1
(INT0#) P3.2
(INT1#) P3.3
(T0) P3.4
(T1) P3.5
1
2
3
4
5
6
7
8
9
10
P1.4 (SS# / CEX1)
P0.0 (AD0)
P1.1 (T2 EX)
P1.3 (CEX0)
P4.2/INT3#
P0.0 (AD0)
P0.1 (AD1)
P0.2 (AD2)
34
40-pin PDIP
8 Top View 33
32
9
31
10
11
12
13
14
15
16
17
18
19
20
30
29
28
27
26
25
24
23
22
21
44 43 42 41 40 39 38 37 36 35 34
33
32
31
30
29
28
27
26
25
24
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
EA#
P4.1
ALE/PROG#
PSEN#
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
44-lead TQFP
Top View
11
23
12 13 14 15 16 17 18 19 20 21 22
P2.2 (A10)
P2.1 (A9)
P2.0 (A8)
1255 40-pdip PI P1.0
P0.3 (AD3)
1255 44-tqfp TQJ P2.0
P1.2 (ECI)
P1.0 (T2)
FIGURE
2-2: Pin Assignments for 40-pin PDIP
FIGURE
2-3: Pin Assignments for 44-lead TQFP
P1.4 (SS# / CEX1)
P1.1 (T2 EX)
P1.3 (CEX0)
P4.2/INT3#
P0.0 (AD0)
P0.1 (AD1)
P0.2 (AD2)
6
(CEX2 / MOSI) P1.5
(CEX3 / MISO) P1.6
(CEX4 / SCK) P1.7
RST
(RXD) P3.0
INT2#/P4.3
(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#
P4.1
ALE/PROG#
PSEN#
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
44-lead PLCC
Top View
17
29
18 19 20 21 22 23 24 25 26 27 28
(WR#) P3.6
(RD#) P3.7
XTAL2
XTAL1
V
SS
P4.0
(A8) P2.0
(A9) P2.1
(A10) P2.2
(A11) P2.3
(A12) P2.4
P0.3 (AD3)
P1.2 (ECI)
P1.0 (T2)
V
DD
35
34
33
32
31
30
1255 44-plcc NJ P3.0
FIGURE
2-4: Pin Assignments for 44-lead PLCC
©2006 Silicon Storage Technology, Inc.
VDD
S71255-05-000
5/06
8
SST [ SILICON STORAGE TECHNOLOGY, INC ]
