SST89E54RD2A(2011) View Datasheet(PDF) - Silicon Storage Technology
Part Name
Description
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SST89E54RD2A Datasheet PDF : 91 Pages
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A Microchip Technology Company
FlashFlex MCU
SST89E54RD2A/RDA / SST89E58RD2A/RDA
Not Recommended for New Designs
(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
44 43 42 41 40 39 38 37 36 35 34
1
33
2
32
3
31
4
30
5
29
44-lead TQFP
6
28
7
Top View
27
8
26
9
25
10
24
11
23
12 13 14 15 16 17 18 19 20 21 22
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)
Figure 3: Pin Assignments for 44-lead TQFP
1339 44-tqfp TQJ P2.0
©2011 Silicon Storage Technology, Inc.
5
DS25114A
12/11
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