Z90231 Datasheet, PDF (4/9 Pages) Zilog, Inc. – Z8 DIGITAL TELEVISION CONTROLLERS

Part_Number
Z8 Digital Television Controllers
ZiLOG
PIN IDENTIFICATION (Continued)
Table 1. Z90231/233/234 42-Pin SDIP Package
Pin Number
Pin Function
I/O/PWR
34
+5 Volts
PWR
30,13
0 Volts
PWR
36
Infra Red remote capture input
I
1
14-bit Pulse Width Modulator output
O
20,19,18,17,2,3,4,5,6,7 6-bit Pulse Width Modulator output
O
7,6,5,4,3,2,1
Bit Programmable Input/Output ports
I/O
42,41,40,39,38,37,35,21 Bit programmable Input/Output ports
I/O
21
Half tone output
O
40,42
I²C Data
I/O
39,41
I²C Clock
I/O
16,12,10,9
Bit programmable Input/Output ports
I/O
20,19,18,17,15,14,11,8 Bit programmable Input/Output ports
I/O
31
Crystal oscillator input
I
32
Crystal oscillator output
O
28
Dot clock oscillator input
I
29
Dot clock oscillator output
O
26
Horizontal Sync
I
27
Vertical Sync
I
25
Video blank
O
24,23,22
Video R,G,B
O
9,10,11,12
4-bit Analog to Digital converter input
AI
33
Device reset
I
Note:
1. It is Input on POR. It must be configured to be output ports for PWM applications
Reset State
PWR
PWR
I
I
I
I
I
I
I
I
I
I
I
O
I
O
I
I
O
O
I
I
Name
V_DD
V_SS, AV_SS
IRIN
PWM11
PWM[10:1]
P5[6:0]
P2[7:0]
HLFTN
SDATA0,1
SCLK0,1
P6[3:0]
P4[7:0]
XTAL1
XTAL2
OSDX1
OSDX2
HSYNC
VSYNC
VBLANK
R,G,B
ADC[3:0]
/RESET
Note
1
1
4
PRELIMINARY
CP00300-TVX0698