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eZ80F91 数据表(PDF) 29 Page - Zilog, Inc.

部件名 eZ80F91
功能描述  Factory-default operating clock frequency at 50 MHz
PDF  30 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  ZILOG [Zilog, Inc.]
网页  http://www.zilog.com
标志 ZILOG - Zilog, Inc.

eZ80F91 数据表(HTML) 29 Page - Zilog, Inc.

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PS026102-1207
Schematics
Zdots® SBC for eZ80AcclaimPlus!™ Connectivity ASSP
Product Specification
25
Figure 10. Zdots Schematic Diagram—Module Memory
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
D7
D0
A4
A2
A14
A12
A3
D1
D6
A5
A11
-CS1
D5
D2
A6
A18
A7
A10
A0
A17
A13
A16
A9
D3
-RD
A15
-WR
A8
A1
D4
-WP
VCC
-FLASH_EN
-FLASHWE
-CSFLASH
-CS0
A20
A11
DFLASH3
A1
DFLASH0
D6
-RESET
A17
A13
A9
D3
D2
A16
A10
DFLASH4
D1
-WR
A12
A2
D5
GND
-RESET
-WR
A4
A0
-RD
A[0..23]
A[0..23]
A21
A18
A8
DFLASH1
D7
A3
A14
A7
-CS0
A15
-RD
D4
-WP
DFLASH7
A5
DFLASH5
D0
A19
A6
DFLASH6
DFLASH2
-DIS_FLASH
-CS1
-CSFLASH
D[0:7]
A[0:23]
-RD
-WR
-CS0
-DIS_FLASH
-RESET
-FLASHWE
-CS1
GND
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
VCC
Memory
This schematic reflects the
assembly rev B of the module.
The FLASH memory on page 3
was changed to AM29008B for
Rev D schematic.
U1E
74LCX04
TSSOP14
U1E
74LCX04
TSSOP14
11
10
R29
10K
R29
10K
U1D
74LCX04
TSSOP14
U1D
74LCX04
TSSOP14
9
8
U8
512kx8 SRAM
SOJ36.400
U8
512kx8 SRAM
SOJ36.400
OE
31
A18
35
CE
6
A17
34
A4
5
A16
33
I/O0
7
A15
32
A3
4
A2
3
A14
24
A1
2
I/O4
25
A13
23
I/O5
26
N.C.
36
I/O6
29
I/O7
30
A0
1
A12
22
VSS
28
WE
13
VDD
27
A11
21
I/O1
8
I/O2
11
I/O3
12
A9
18
A8
17
VSS
10
N.C.
19
A10
20
A7
16
A6
15
A5
14
VDD
9
U10
SN74CBTLV3861
U10
SN74CBTLV3861
A1
2
A2
3
A3
4
A4
5
A5
6
A6
7
A7
8
A8
9
A9
10
A10
11
B1
22
B2
21
B3
20
B4
19
B5
18
B6
17
B7
16
B8
15
B9
14
B10
13
NC
1
VCC
24
GND
12
OE
23
R30
10K
R30
10K
C14
0.001uF
C14
0.001uF
U11
Am29LV008B
U11
Am29LV008B
A0
21
A1
20
A2
19
A3
18
A4
17
A5
16
A6
15
A7
14
A8
8
A9
7
A10
36
A11
6
A12
5
A13
4
A14
3
A15
2
A16
1
A17
40
A18
13
A19
37
RESET
10
RY/BY
12
OE
24
WE
9
CE
22
DQ0
25
DQ1
26
DQ2
27
DQ3
28
DQ4
32
DQ5
33
DQ6
34
DQ7
35
NC1
11
NC2
38
NC3
29
C13
0.001uF
C13
0.001uF
U4C
74LCX32
TSSOP14
U4C
74LCX32
TSSOP14
9
10
8



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