Z90251 Datasheet, PDF (13/97 Pages) Zilog, Inc. – eZVision 200 Television Controllers with OSD

Z90255 ROM and Z90251 OTP
32 KB Television Controller with OSD
5
1.1 Pin Assignment and Descriptions
Figure 3 shows the pin numbers for production and OTP device format.
PORT56/PWM11 1
42 PORT27/SDATA1
PORT55/PWM6 2
41 PORT26/SCLK1
PORT54/PWM5 3
40 _{PORT25/SDATA0}
PORT53/PWM4 4
39 PORT24/SCLK0
PORT52/PWM3 5
38 PORT23
PORT51/PWM2 ⁶
37 PORT22
PORT50/PWM10 ⁷
PORT40 ⁸
Z90251
36
35
IRIN
PORT21
PORT60/ADC3 ⁹
or
34 V_CC
PORT61/ADC2 10
33 _RESET
PORT41/ADC1 ¹¹ Z90255 ³² XTAL2
PORT62/ADC0 ¹²
31 XTAL1
AGND ¹³
30 _GND
PORT42 14 ^{(Top View)} 29 ^OSDX2
PORT43 ¹⁵
28 OSDX1
PORT63 16
PORT44/PWM7 17
PORT45/PWM8 18
PORT46/PWM9 19
27 V_SYNC
26 H_SYNC
25 V_BLANK
24 R
PORT47/PWM10 20
23 _G
PORT20/HLFTN ²¹
22 B
Figure 3 Z90255 and Z90251 Pin Assignments
Notes: 1 The pins on the Z90255 and Z90251 are assigned to
perform the functions identified in Tables 1, 2 and 3.
2 PWM 6 can be either 6-bit or 14-bit PWM outputs.
3 All signals with an overbar are active Low.
PS001301-0800