z90120 ZiLOG Semiconductor, z90120 Datasheet

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z90120

Manufacturer Part Number
z90120
Description
40-pin Low-cost Digital Television Controller
Manufacturer
ZiLOG Semiconductor
Datasheet
FEATURES
n
Z90110
Z90120
Z90130
*General-Purpose
n
n
n
n
GENERAL DESCRIPTION
The Z901XX 40-pin Digital Television Controller is a cost-
effective member of the Z8
family. The device provides an ideal performance and
reliability solution for consumer and industrial television
applications.
The Z901XX offers mask-programmed ROM, which en-
ables the Z8 microcontroller to be used in a high-volume
production application device embedded with a custom
program (customer-supplied program) and combines
provide support for mid-range and low-end TV applica-
tions.
The device features an 8-bit internal data path controlled
by a Z8 microcontroller, On-Screen Display (OSD) logic
circuits, and Pulse Width Modulators (PWM). On-chip
peripherals include two register mapped I/O ports (Ports 2
and Port 3), interrupt control logic (one software, two
external and three internal interrupts) and a standby mode
recovery input port (Port 3, pin P30).
The OSD control circuits support six rows by 20 columns
of characters. The character color is specified by row. One
of the eight rows is assigned to show two kinds of colors for
bar type displays such as volume control. The OSD is
capable of displaying either low resolution (5x7 dot pattern)
or high resolution (11x15 dot pattern) characters.
CP95TEL1300 (10/95)
Part
40-Pin DIP Package
4.5V to 5.5V Operating Range
0 C to +70 C Temperature Range
Low-Power Consumption
ROM
(KB)
4
6
8
(Kbyte)
RAM*
236
236
236
®
single-chip microcontroller
Speed
(MHz)
4
4
4
P R E L I M I N A R Y
to
P
C
Z90110/120/130
40-P
T
n
n
n
n
n
A 14-bit PWM port provides enough voltage resolution for
a voltage synthesizer tuning system. Three 6-bit PWM
ports are used for controlling audio signal levels, and
Three 8-bit PWM ports used to vary picture levels.
Three basic address spaces, The Program Memory, Video
RAM, and Register File, support a wide range of memory
configurations.
For applications demanding powerful I/O capabilities, the
Z901XX's dedicated input and output lines are grouped
into three ports, and are configurable under software
control to provide timing, status signals, parallel I/O and an
address/data bus for interfacing to external memory.
To unburden the program from coping with the real-time
problems such as counting/timing and data communication,
the Z901XX offers two on-chip counter/timers with a large
number of user selectable modes.
Notes:
All Signals with a preceding front slash, "/", are active Low, e.g.:
B//W (WORD is active Low); /B/W (BYTE is active Low, only).
Power connections follow conventional descriptions below:
RELIMINARY
USTOMER
ELEVISION
On-Screen Display (OSD) Logic Circuits
One 14-Bit and Three 6-Bit Pulse Width Modulator
(PWM) Circuits
24 Input/Output Lines
Program Memory, Video RAM, and Register File
Address Spaces
Two On-Chip Counter/Timers
Connection
Ground
IN
Power
L
OW
P
ROCUREMENT
C
-C
ONTROLLER
OST
D
Circuit
GND
V
IGITAL
S
CC
PECIFICATION
Z90110/120/130
Device
CP95TEL1300
V
V
DD
SS
1

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z90120 Summary of contents

Page 1

... FEATURES ROM RAM* Part (KB) (Kbyte) n Z90110 4 236 Z90120 6 236 Z90130 8 236 *General-Purpose 40-Pin DIP Package n 4.5V to 5.5V Operating Range +70 C Temperature Range n Low-Power Consumption n GENERAL DESCRIPTION The Z901XX 40-pin Digital Television Controller is a cost- ® effective member of the Z8 single-chip microcontroller family ...

Page 2

GENERAL DESCRIPTION (Continued) XTAL1 RESET Oscillator XTAL2 WDT /RESET Counter Timer Counter Timer P30 P31 Port 3/ P34 Interrupt P35 P36 P60 P61 P62 Port 6 P63 (Control) P64 P65 AFCIN ...

Page 3

PIN CONFIGURATION OSCOUT PWM1 P35 3 P36 38 P34 P31 6 P30 35 7 XTAL1 34 XTAL2 8 33 /RESET 9 ...

Page 4

ABSOLUTE MAXIMUM RATINGS Stresses greater than those listed under Absolute Maximum Ratings may cause permanent damage to the device. This is a stress rating only; operation of the device at any condition above those indicated in the operational Symbol Parameters ...

Page 5

CAPACITANCE T = =GND=0V; Freq=1.0 MHz; unmeasured pins to GND Parameter Input capacitance Output capacitance I/O capacitance AFC input capacitance IN DC CHARACTERISTICS + =+4.5V to +5.5V ...

Page 6

AC CHARACTERISTICS Timing Diagrams XTAL1 Tin IRQn External Clock Counter Timer 8 9 Interrupt Request Z90110/120/130 CP95TEL1300 ...

Page 7

AC CHARACTERISTICS Timing Diagrams (Continued) Vcc Internal /RESET External /RESET HSYNC OSC2 Power-On Reset 13 On-Screen Display Z90110/120/130 CP95TEL1300 ...

Page 8

AC CHARACTERISTICS + =+4.5V to +5.5V Symbol Parameter 1 TpC Input Clock Period 2 TrC,TfC Clock Input Rise and Fall 3 TwC Input Clock Width 4 TwTinL Timer Input Low ...

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