Epson S1D13504 Technical Manual page 360

Page 4
1.1 Conditions
Test Condition
Core V = 3.3V IO V
DD
ISA Bus (8MHz)
Input Clock = 6MHz
1 LCD Panel Connected = 320x240 Monochrome
Input Clock = 6MHz
2 LCD Panel Connected = 320x240 Color
Input Clock = 25MHz
3 LCD Panel Connected = 640x480 Monochrome
Input Clock = 25MHz
4 LCD Panel Connected = 640x480 Color
2 Summary
S1D13504
X19A-G-006-04
The Table 1-1: "S1D13504 Total Power Consumption" below gives an example of a particular
environment and its effects on power consumption.
Table 1-1: S1D13504 Total Power Consumption
= 5.0V
DD
Note
1. Conditions for Software SUSPEND:
• CPU interface active (signals toggling)
• CLKI active (6MHz)
• Self-Refresh DRAM
2. Conditions for Hardware SUSPEND:
• CPU interface inactive (high impedance)
• CLKI stopped
• Self-Refresh DRAM
The system design variables in Section 1, "S1D13504 Power Consumption" and in Table 1-1:
"S1D13504 Total Power Consumption" show that S1D13504 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 S1D13504 can be configured to be an extremely power-efficient
LCD Controller with high performance and flexibility.
Gray Shades /
Colors
Active
Black-and-White 38.7mW
4 Grays 43.9mW
16 Grays 46.8mW
4 Colors 44.4mW
16 Colors 49.7mW
256 Colors 51.2mW
Black-and-White 113.3mW
16 Grays 124.6mW
16 Colors 145.6mW
256 Colors 150.6mW
64K Colors 150.0mW
Epson Research and Development
Vancouver Design Center
Total Power Consumption
Power Save Mode
Software Hardware
1
20mW 7.59uW
1
20mW 7.59uW
1
24mW 7.59uW
1
24mW 7.59uW
Power Consumption
Issue Date: 01/02/02
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