Z90251 ZILOG [Zilog, Inc.], Z90251 Datasheet - Page 13

• Manufacturer Part Number: Z90251
• Description: eZVision 200 Television Controllers with OSD
• Manufacturer: ZILOG [Zilog, Inc.]

1.1
Notes:
Pin Assignment and Descriptions
Figure 3 shows the pin numbers for production and OTP device format.
Figure 3
PORT50/ PWM10
PORT 47/PWM10
PORT56/PWM11
PORT 20/HLFTN
PORT55/PWM6
PORT54/PWM5
PORT53/PWM4
PORT52/PWM3
PORT51/PWM2
PORT44/PWM7
PORT45/PWM8
PORT 46/PWM9
PORT 60/ADC3
PORT61/ADC2
PORT 41/ADC1
PORT 62/ADC0
1
2
3
Z90255 and Z90251 Pin Assignments
The pins on the Z90255 and Z90251 are assigned to
perform the functions identified in Tables 1, 2 and 3.
PWM 6 can be either 6-bit or 14-bit PWM outputs.
All signals with an overbar are active Low.
PORT 40
PORT 42
PORT 43
PORT 63
AGND
10
11
12
13
14
15
16
17
18
19
20
21
1
2
3
4
5
6
7
8
9
(Top View)
Z90251
Z90255
or
32 KB Television Controller with OSD
42
41
40
39
38
37
36
35
34
33
32
29
28
27
26
25
22
24
31
30
23
PORT 27/SDATA1
PORT 26/SCLK1
PORT25/SDATA0
PORT 24/SCLK0
PORT 23
PORT
OSDX1
H SYNC
B
PORT 21
V
GND
OSDX2
V SYNC
V BLANK
G
IRIN
R
RESET
XTAL2
XTAL1
CC
22
PS001301-0800
5