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Epson Research and Development
Page 63
Vancouver Design Center
Hardware Functional Specification
SED1352
Issue Date: 99/07/28
X16-SP-001-16
(1) Memory more than 128KB cannot be supported by SED1352.
(2) Memory more than 64KB can only be supported through 16-bit display memory interface.
* KB = K byte = 1024 bytes
Table 9-4: Memory Size Requirement: Number of Horizontal Pixels = 480
Number of Horizontal Pixels = 480
4 Grays
(2 bits-per-pixel)
16 Grays
(4 bits-per-pixel)
Example
Display
Memory
Interface
Size
(KB)
Access Time
Size
(KB)
Access Time
Input Clock
(f
OSC
)
Frame Rate
3V/3.3V
5V
3V/3.3V
5V
Num
b
er of
V
ert
ical L
ines
480
8-bit
16-bit
57
60 ns
170 ns
80 ns
190 ns
113
(2)
60 ns
(2)
80 ns
18 MHz
75 Hz
400
8-bit
16-bit
47
90 ns
230 ns
110 ns
250 ns
94
(2)
90 ns
(2)
110 ns
14 MHz
70 Hz
320
8-bit
16-bit
37.5
115 ns
280 ns
135 ns
300 ns
75
(2)
115 ns
(2)
135 ns
12 MHz
75 Hz
256
8-bit
16-bit
30
150 ns
350 ns
170 ns
370 ns
60
50 ns
150 ns
70 ns
170 ns
10 MHz
77 Hz
240
8-bit
16-bit
29
200 ns
450 ns
220 ns
470 ns
57
75 ns
200 ns
95 ns
220 ns
8 MHz
66 Hz
200
8-bit
16-bit
23.5
200 ns
450 ns
220 ns
470 ns
47
75 ns
200 ns
95 ns
220 ns
8 MHz
73 Hz
Table 9-5: Memory Size Requirement: Number of Horizontal Pixels = 320
Number of Horizontal Pixels = 320
4 Grays
(2 bits-per-pixel)
16 Grays
(4 bits-per-pixel)
Example
Display
Memory
Interface
Size
(KB)
Access Time
Size
(KB)
Access Time
Input Clock
(f
OSC
)
Frame Rate
3V/3.3V
5V
3V/3.3V
5V
Num
b
er o
f V
ertical L
ines
480
8-bit
16-bit
37.5
115 ns
280 ns
135 ns
300 ns
75
(2)
115 ns
(2)
135 ns
12 MHz
74 Hz
400
8-bit
16-bit
32
150 ns
350 ns
170 ns
370 ns
62.5
50 ns
150 ns
70 ns
170 ns
10 MHz
74 Hz
320
8-bit
16-bit
25
200 ns
450 ns
220 ns
470 ns
50
75 ns
200 ns
95 ns
220 ns
8 MHz
73 Hz
256
8-bit
16-bit
20
280 ns
615 ns
300 ns
630 ns
40
115 ns
280 ns
135 ns
300 ns
6 MHz
69 Hz
240
8-bit
16-bit
19
280 ns
615 ns
300 ns
635 ns
37.5
115 ns
280 ns
135 ns
300 ns
6 MHz
73 Hz
200
8-bit
16-bit
16
350 ns
750 ns
370 ns
770 ns
32
150 ns
350 ns
170 ns
370 ns
5 MHz
73 Hz