sed1355 ETC-unknow, sed1355 Datasheet - Page 378

• Manufacturer Part Number: sed1355
• Description: Sed1355 Embedded Ramdac Lcd/crt Controller
• Manufacturer: ETC-unknow

Page 4
1.1 Conditions
2 Summary
SED1355
X23A-G-006-02
1
2
3
4
5
Input Clock = 6MHz
LCD Panel = 320x240 4-bit Single Monochrome
Input Clock = 6MHz
LCD Panel = 320x240 8-bit Single Color
Input Clock = 25MHz
LCD Panel = 640x480 8-bit Dual Monochrome
Input Clock = 25MHz
LCD Panel = 640x480 16-bit Dual Color
Input Clock = 33.333MHz
CRT = 640x480 Color
Test Condition
ISA Bus (8MHz)
V
DD
= 3.3V
Note
Table 1-1: “SED1355 Total Power Consumption” below gives an example of a specific environment
and its effects on power consumption.
The system design variables in Section 1, “SED1355 Power Consumption” and in Table 1-1:
“SED1355 Total Power Consumption” show that SED1355 power consumption depends on the
specific implementation. Active Mode power consumption depends on the desired CPU perfor-
mance and LCD frame-rate, whereas Power Save Mode consumption depends on the CPU Interface
and Input Clock state.
In a typical design environment, the SED1355 can be configured to be an extremely power-efficient
LCD Controller with high performance and flexibility.
1. Conditions for Software SUSPEND:
2. Conditions for Hardware SUSPEND:
• CPU interface active (signals toggling)
• CLKI active
• Self-Refresh DRAM
• CPU interface inactive (high impedance)
• CLKI stopped
• Self-Refresh DRAM
Table 1-1: SED1355 Total Power Consumption
Black-and-White
4 Gray Shades
16 Gray Shades
4 Colors
16 Colors
256 Colors
Black-and-White
16 Gray Shades
16 Colors
256 Colors
64K Colors
16 Colors
256 Colors
64K Colors
Gray Shades /
Colors
101.3mW
221.1mW
234.0mW
237.3mW
18.6mW
20.3mW
22.8mW
22.3mW
25.3mW
29.0mW
58.5mW
93.4mW
98.1mW
71.7mW
Active
Total Power Consumption
Epson Research and Development
Software
4.29mW
4.32mW
5.71mW
5.74mW
6.34mW
Power Save Mode
1
1
1
1
1
Vancouver Design Center
Issue Date: 98/10/30
Power Consumption
Hardware
0.33 W
0.33 W
0.33 W
0.33 W
0.33 W
2
2
2
2
2