PSD835G3V-C-12M View Datasheet(PDF) - STMicroelectronics
Part Name
Description
Manufacturer
PSD835G3V-C-12M Datasheet PDF : 110 Pages
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PSD835G2
PSD8XX Family
Figure 21. Interfacing the PSD835G2 to the 80C251, with Read and PSEN Inputs
AD[15:8]
A[7:0]
VCC
CRYSTAL
RESET
2
3
4
5
6
7
8
9
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
21 X1
20 X2
11
13
14
15
16
17
P3.0/RXD
P3.1/TXD
P3.2/INT0
P3.3/INT1
P3.4/T0
P3.5/T1
10 RESET
35 EA
80C251SB
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
43
42
41
40
39
38
37
36
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
24
25
26
27
28
29
30
31
WR 18
RD/A16 19
PSEN 32
ALE 33
RESET
RESET
A0
A1
A2
A3
A4
A5
A6
A7
AD8
AD9
AD10
AD11
AD12
AD13
AD14
AD15
WR
RD
PSEN
ALE
RESET
** 3
4
ADIO0
ADIO1
5
6
7
ADIO2
ADIO3
ADIO4
10
11
12
ADIO5
ADIO6
ADIO7
13
14
15
16
17
18
19
20
ADIO8
ADI09
ADIO10
ADIO11
ADIO12
ADIO13
ADIO14
ADIO15
9 29 69
VCC VCC VCC
59 CNTL0 (WR)
60 CNTL1 (RD)
40 CNTL2 (PSEN)
79
80
1
2
PD0 (ALE)
PD1 (CLKIN)
PD2 (CSI)
PD3
39 RESET
71
72
73
74
75
76
77
78
PE0 (TMS)
PE1 (TCK/ST)
PE2 (TDI)
PE3 (TDO)
PE4 (TSTAT/RDY)
PE5 (TERR)
PE6 (VSTBY)
PE7 (VBATON)
PF0
PF1
PF2
PF3
PF4
PF5
PF6
PF7
31
32
33
34
35
36
37
38
PG0
PG1
PG2
PG3
PG4
PG5
PG6
PG7
21
22
23
24
25
26
27
28
PA0
PA1
PA2
PA3
PA4
PA5
PA6
PA7
51
52
53
54
55
56
57
58
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
61
62
63
64
65
66
67
68
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
41
42
43
44
45
46
47
48
GND GND GND GND GND
PSD835G2 8 30 49 50 70
AD[15:8]
A[7:0]
49
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