Z9025106PSG Zilog, Z9025106PSG Datasheet - Page 47
Z9025106PSG
Manufacturer Part Number
Z9025106PSG
Description
IC 32K 8BIT DTC OTP 42-DIP
Manufacturer
Zilog
Specifications of Z9025106PSG
Applications
TV Controller
Core Processor
Z8
Program Memory Type
OTP (32 kB)
Controller Series
Digital Television Controller (DTC)
Ram Size
300 x 8
Interface
I²C, 2-Wire Serial
Number Of I /o
27
Voltage - Supply
4.5 V ~ 5.5 V
Operating Temperature
0°C ~ 70°C
Mounting Type
Through Hole
Package / Case
42-DIP (0.600", 15.24mm)
Processor Series
Z902x
Core
Z8
Data Bus Width
8 bit
Program Memory Size
32 KB
Data Ram Size
300 B
Interface Type
I2C
Maximum Clock Frequency
6 MHz
Number Of Programmable I/os
27
Mounting Style
Through Hole
On-chip Adc
4 bit, 4 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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Z90255 ROM and Z90251 OTP
32 KB Television Controller with OSD
39
5.7
Character Size and Smoothing Effect
The Z90255 supports four character sizes: 1X, 2X, double width, and double
height. The 2X size duplicates each pixel horizontally and vertically to reach
double size. Figure 14 shows a character at 1X, 2X without smoothing, and 2X
with smoothing.
Smoothing means enhancing a character to improve its appearance. This effect
can be applied to 2X and double width characters, and is enabled and disabled in
DISP_ATTR: 03h: Bank A (4).
Check the effect of smoothing on 2X and double width characters before finalizing
OSD programming.
1X
After Smoothing
2X
Figure 14 Smoothing Effect on 2X Character Size
PS001301-0800
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