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PSD834210MIT 数据表(PDF) 40 Page - STMicroelectronics

部件名 PSD834210MIT
功能描述  Flash PSD, 3.3V Supply, for 8-bit MCUs 2 Mbit 256 Kbit Dual Flash Memories and 64 Kbit SRAM
PDF  89 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

PSD834210MIT 数据表(HTML) 40 Page - STMicroelectronics

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Figure 19. Interfacing the PSD with an 80C31
80C251. The Intel 80C251 MCU features a user-
configurable bus interface with four possible bus
configurations, as shown in Table 16.
Table 16. 80C251 Configurations
EA/VP
X1
X2
RESET
RESET
INT0
INT1
T0
T1
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PC0
PC2
PC1
PC3
PC4
PC5
PC6
PC7
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
ADIO0
ADIO1
ADIO2
ADIO3
ADIO4
ADIO5
ADIO6
ADIO7
ADIO8
ADIO9
ADIO10
ADIO11
ADIO12
ADIO13
ADIO14
ADIO15
CNTL0 (WR)
CNTL1(RD)
CNTL2 (PSEN)
PD0-ALE
PD1
PD2
RESET
RD
WR
PSEN
ALE/P
TXD
RXD
RESET
29
28
27
25
24
23
22
21
30
39
31
19
18
9
12
13
14
15
1
2
3
4
5
6
7
8
38
37
36
35
34
33
32
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
AD0
AD1
AD2
AD3
AD4
AD5
AD6
AD7
31
32
33
34
35
36
37
39
40
41
42
43
44
45
46
47
48
50
49
10
9
8
7
6
5
4
3
2
52
51
PSD
80C31
AD7-AD0
AD[ 7:0]
21
22
23
24
25
26
27
28
17
16
29
30
A8
A9
A10
A11
A12
A13
A14
A15
RD
WR
PSEN
ALE
11
10
RESET
20
19
18
17
14
13
12
11
AI02880C
Configuration
80C251 Read/Write Pins
Connecting to PSD Pins
Page Mode
1
WR
RD
PSEN
CNTL0
CNTL1
CNTL2
Non-Page Mode, 80C31
compatible A7-A0 multiplex with
D7-D0
2
WR
PSEN only
CNTL0
CNTL1
Non-Page Mode
A7-A0 multiplex with D7-D0
3
WR
PSEN only
CNTL0
CNTL1
Page Mode
A15-A8 multiplex with D7-D0
4
WR
RD
PSEN
CNTL0
CNTL1
CNTL2
Page Mode
A15-A8 multiplex with D7-D0



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