FlashFlex51 MCU
SST89E52RD2 / SST89E54RD2 / SST89E58RD2 / SST89E516RD2
SST89V52RD2 / SST89V54RD2 / SST89V58RD2 / SST89V516RD2
Preliminary Specifications
2.0 PIN ASSIGNMENTS
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
24
23
22
21
V
DD
(T2) P1.0
(T2 EX) P1.1
(ECI) P1.2
1
P0.0 (AD0)
P0.1 (AD1)
P0.2 (AD2)
P0.3 (AD3)
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
EA#
2
3
(CEX0) P1.3
(CEX1 / SS#) P1.4
(CEX2 / MOSI) P1.5
(CEX3 / MISO) P1.6
(CEX4 / SCK) P1.7
RST
4
5
6
7
44 43 42 41 40 39 38 37 36 35 34
40-pin PDIP
Top View
(CEX2 / MOSI) P1.5
(CEX3 / MISO) P1.6
(CEX4 / SCK) P1.7
RST
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
EA#
1
33
32
31
30
29
28
27
26
25
24
23
8
2
9
3
(RXD) P3.0
10
11
12
13
14
15
16
17
18
19
20
4
ALE/PROG#
PSEN#
(RXD) P3.0
(TXD) P3.1
5
44-lead TQFP
Top View
INT2#/P4.3
P4.1
6
(INT0#) P3.2
(INT1#) P3.3
(T0) P3.4
(TXD) P3.1
ALE/PROG#
PSEN#
7
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
P2.4 (A12)
P2.3 (A11)
P2.2 (A10)
P2.1 (A9)
P2.0 (A8)
(INT0#) P3.2
(INT1#) P3.3
(T0) P3.4
8
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
9
(T1) P3.5
10
(T1) P3.5
11
(WR#) P3.6
(RD#) P3.7
12 13 14 15 16 17 18 19 20 21 22
XTAL2
1255 44-tqfp TQJ P2.0
XTAL1
V
SS
1255 40-pdip PI P1.0
FIGURE
2-2: PIN ASSIGNMENTS FOR 44-LEAD TQFP
FIGURE
2-1: PIN ASSIGNMENTS FOR 40-PIN PDIP
6
5
4
3
2
1
44 43 42 41 40
7
(CEX2 / MOSI) P1.5
(CEX3 / MISO) P1.6
(CEX4 / SCK) P1.7
RST
P0.4 (AD4)
P0.5 (AD5)
P0.6 (AD6)
P0.7 (AD7)
EA#
39
8
38
37
36
35
34
33
32
31
30
29
9
10
11
12
13
14
15
16
17
(RXD) P3.0
44-lead PLCC
Top View
INT2#/P4.3
P4.1
(TXD) P3.1
ALE/PROG#
PSEN#
(INT0#) P3.2
(INT1#) P3.3
(T0) P3.4
P2.7 (A15)
P2.6 (A14)
P2.5 (A13)
(T1) P3.5
18 19 20 21 22 23 24 25 26 27 28
1255 44-plcc NJ P3.0
FIGURE
2-3: PIN ASSIGNMENTS FOR 44-LEAD PLCC
©2004 Silicon Storage Technology, Inc.
S71255-00-000
3/04
8
SST [ SILICON STORAGE TECHNOLOGY, INC ]
