Z90251 Datasheet, PDF (94/97 Pages) Zilog, Inc. – eZVision 200 Television Controllers with OSD

Z90255 ROM and Z90251 OTP
32 KB Television Controller with OSD
86
11.4 Timing Diagram
XTAL1
1
3
3
2
2
IRQn
8
7
Hsync IN
4
9
5
6
V_CC
10
Internal/Reset
External/Reset
11
12
H_SYNC
13
14
OSDX2
Figure 22 Timing Requirements of External Inputs
PS001301-0800