ZILOG Z86247

Z86247
CPS DC-9027-00
PRELIMINARY
CUSTOMERPROCUREMENTSPECIFICATION
Z86247
40-PINLOW-COSTDIGITAL
TELEVISIONCONTROLLER(4LDTC)
GENERAL DESCRIPTION
The Z86247 40-pin Low-Cost Digital Television Controller
(4LDTC) introduces a new level of sophistication to singlechip architecture. The Z86247 is a member of the Z8 ®
single-chip microcontroller family with 8 Kbytes of ROM
and 236 bytes of RAM. The device is offered in a 40-pin
package and is CMOS compatible. The 4LDTC offers
mask programmed ROM which enables the Z8
microcontroller to be used in a high volume production
application device embedded with a custom program
(customer supplied program) and combines together with
the Z86C27 (DTC) and Z86127 (LDTC) to provide support
for high end, mid range and low end TV applications.
Zilog’s 4LDTC offers fast execution, efficient use of memory,
sophisticated interrupts, input/output bit manipulation
capabilities, and easy hardware/software system expansion
along with low cost and low power consumption. The
device provides an ideal performance and reliability solution
for consumer and industrial television applications.
The Z86247 architecture is characterized by utilizing Zilog’s
advanced Superintegration™ design methodology. The
device has an 8-bit internal data path controlled by a Z8
microcontroller and 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 8 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 high resolution (11x15 dot pattern)
characters.
DC 9027-00
(7-27-94)
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. Three
8-bit PWM ports used to vary picture levels.
The 4LDTC applications demand powerful I/O capabilities.
The Z86247 fulfills this with 24 pins dedicated to input or
output. These 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.
There are three basic address spaces available to support
this wide range of configurations: Program Memory, Video
RAM, and Register File. The Register File is composed of
236 bytes of general purpose registers, two I/O Port
registers, 15 control and status registers and three reserved
registers.
To unburden the program from coping with the real-time
problems such as counting/timing and data communication,
the 4LDTC offers two on-chip counter/timers with a large
number of user selectable modes (Figure 1).
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:
Connection
Circuit
Device
Power
Ground
VCC
GND
VDD
VSS
1
Z86247
CPS DC-9027-00
GENERAL DESCRIPTION (Continued)
XTAL1
XTAL2
/RESET
RESET
Oscillator
WDT
Counter
Timer
Counter
Timer
P30
P31
P34
P35
P36
Port 3/
Interrupt
P60
P61
P62
P63
P64
P65
AFCIN
Port 6
(Control)
8 KByte
Program ROM
Port 2
Z8 CPU
Core
256 Byte
Register File
Port 0
Port 1
A8-15
PWM 1
14 -bit
PWM 1
PWM 6
to
PWM 8
6-bit
PWM 6
PWM 7
PWM 8
PWM 9
to
PWM11
PWM 9
PWM 10
PWM 11
On Screen
Display
OSCIN
OSCOUT
HSYNC
VSYNC
VRED
VGREEN
VBLUE
VBLANK
AD0-7
128 Byte
Character RAM
4 KByte
Character ROM
Functional Block Diagram
2
P27
P26
P25
P24
P23
P22
P21
P20
Z86247
CPS DC-9027-00
PIN CONFIGURATION
PWM1
1
40
PWM6
P35
2
39
PWM7
P36
P34
3
38
PWM8
4
37
PWM9
P31
5
36
PWM10
P30
6
35
PWM11
XTAL1
XTAL2
7
34
P27
8
33
P26
/RESET
9
32
P25
31
P24
Z86247
(LDTC)
P60
10
GND
11
30
P23
P61
12
29
P62
VCC
13
28
P22
P21
14
27
P20
P63
15
26
VBLANK
P64
16
25
VBLUE
P65
17
24
VGREEN
AFCIN
OSCIN
18
19
23
VRED
22
OSCOUT
20
21
VSYNC
HSYNC
40-Pin Mask-ROM Plastic DIP
3
Z86247
CPS DC-9027-00
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
sections of this specification is not implied. Exposure to
absolute maximum rating conditions for extended periods
may affect device reliability.
Symbol
Parameters
Min
Max
Units
Notes
VCC
VI
VI
VO
IOH
Power Supply Voltage*
Input Voltage
Input Voltage
Output Voltage
Output Current High
–0.3
–0.3
–0.3
–0.3
+7
VCC +0.3
VCC +0.3
VCC +8.0
–10
V
V
V
V
mA
[1]
[2,3]
1 pin
IOH
IOL
IOL
TA
TSTG
Output Current High
Output Current Low
Output Current Low
Operating Temperature
Storage Temperature
–100
20
200
mA
mA
mA
All total
1 pin
All total
+150
C
†
–65
Notes:
[1] Port 2 open-drain
[2] PWM open-drain outputs
[3] PWM breakdown is 13.2V (normal operation). Will withstand
16V max. (non-momentary operating).
* Voltage on all pins with respect to GND.
† See Ordering Information
STANDARD TEST CONDITIONS
VDD
The characteristics listed below apply for standard test
conditions as noted. All voltages are referenced to GND.
Positive current flows into the referenced pin (Test Load
Diagram).
RLL
From Output
Under Test
150 pF
Test Load Diagram
4
RLH
Z86247
CPS DC-9027-00
CAPACITANCE
TA=25°C; VCC=GND=0V; Freq=1.0 MHz; unmeasured pins to GND.
Parameter
Input capacitance
Output capacitance
I/O capacitance
AFCIN input capacitance
Max
Units
10
20
25
10
pF
pF
pF
pF
DC CHARACTERISTICS
TA=0°C to +70°C; V CC=+4.5V to +5.5V; FOSC=4 MHz
TA=0°C to +70°C
Min
Max
Sym
Parameter
VIL
VILC
VIH
Input Voltage Low
Input XTAL/Osc In Low
Input Voltage XTAL/Osc In High
VIHC
VHY
VPU
Input XTAL/Osc In High
Schmitt Hysteresis
Maximum Pull-Up Voltage
VOL
Output Voltage Low
V00-01
V01-11
VOH
AFC Level 01 In
AFC Level 11 In
Output Voltage High
0.5 VCC
V CC–0.4
IIR
IIL
IOL
Reset Input Current
Input Leakage
Tri-State Leakage
–3.0
–3.0
ICC
ICC1
ICC2
Supply Current
0
0.7 VCC
0.8 VCC
0.1 VCC
Typical
@ 25°C Units
Conditions
0.2 VCC
0.07 VCC
VCC
1.48
0.98
3.2
V
V
V
VCC
3.0
0.8
V
V
V
External Clock Generator Driven
12
External Clock Generator Driven
External Clock Generator Driven
[1]
0.4
0.4
0.16
0.19
V
V
IOL=1.00 mA
IOL=0.75 mA [1]
0.45 VCC
0.75 VCC
1.9
3.12
4.75
V
V
V
IOH=–0.75 mA
–80
3.0
3.0
–46
0.01
0.02
µA
µA
µA
VRL=0V
0V,VCC
0V,VCC
20
6
10
13.2
3.2
2.0
mA
mA
µA
All inputs at rail
All inputs at rail
All inputs at rail
Note:
[1] PWM open-drain
5
Z86247
CPS DC-9027-00
AC CHARACTERISTICS
Timing Diagrams
1
3
XTAL1
3
2
2
External Clock
7
5
Tin
4
6
Counter Timer
IRQn
8
9
Interrupt Request
6
Z86247
CPS DC-9027-00
AC CHARACTERISTICS
Timing Diagrams (Continued)
Vcc
10
11
Internal /RESET
12
External /RESET
Power-On Reset
HSYNC
13
14
OSC2
On-Screen Display
7
Z86247
CPS DC-9027-00
AC CHARACTERISTICS
TA=0° C to +70° C; VCC=+4.5V to +5.5V; FOSC=4 MHz
No
Symbol
Parameter
Min
Max
Unit
1
2
3
4
TpC
TrC,TfC
TwC
TwTinL
Input Clock Period
Clock Input Rise and Fall
Input Clock Width
Timer Input Low Width
250
1000
15
ns
ns
ns
ns
5
6
7
8a
TwTinH
TpTin
TrTin,TfTin
TwIL
Timer Input High Width
Timer Input Period
Timer Input Rise and Fall
Int Req Input Low
3TpC
8TpC
100
ns
ns
8b
9
10
11
TwIL
TwIH
TdPOR
TdLVIRES
100
ms
ns
12
13
14
15
TwRES
TdHsOI
TdHsOh
TdWDT
Int Request Input High
Power On Reset Delay
Low Voltage Detect to
Internal RESET Condition
Reset Minimum Width
Hsync Start to Vosc Stop
Hsync End to Vosc Start
WDT Refresh Time
70
70
70
3TpC
3TpC
25
200
5TpC
2TpV
3TpV
1TpV
12
ms
Note:
Refer to DC Characteristics for details on switching levels.
Pre-Characterization Product:
The product represented by this CPS is newly introduced
and Zilog has not completed the full characterization of the
product. The CPS states what Zilog knows about this
product at this time, but additional features or non-con-
Low Margin:
Customer is advised that this product does not meet
Zilog’s internal guardbanded test policies for the specification requested and is supplied on an exception basis.
© 1994 by Zilog, Inc. All rights reserved. No part of this document
may be copied or reproduced in any form or by any means
without the prior written consent of Zilog, Inc. The information in
this document is subject to change without notice. Devices sold
by Zilog, Inc. are covered by warranty and patent indemnification
provisions appearing in Zilog, Inc. Terms and Conditions of Sale
only. Zilog, Inc. makes no warranty, express, statutory, implied or
by description, regarding the information set forth herein or
regarding the freedom of the described devices from intellectual
property infringement. Zilog, Inc. makes no warranty of merchantability or fitness for any purpose. Zilog, Inc. shall not be
responsible for any errors that may appear in this document.
Zilog, Inc. makes no commitment to update or keep current the
information contained in this document.
8
formance with some aspects of the CPS may be found,
either by Zilog or its customers in the course of further
application and characterization work. In addition, Zilog
cautions that delivery may be uncertain at times, due to
start-up yield issues.
Customer is cautioned that delivery may be uncertain and
that, in addition to all other limitations on Zilog liability
stated on the front and back of the acknowledgement,
Zilog makes no claim as to quality and reliability under the
Zilog’s products are not authorized for use as critical components in life support devices or systems unless a specific written
agreement pertaining to such intended use is executed between
the customer and Zilog prior to use. Life support devices or
systems are those which are intended for surgical implantation
into the body, or which sustains life whose failure to perform,
when properly used in accordance with instructions for use
provided in the labeling, can be reasonably expected to result in
significant injury to the user.
Zilog, Inc. 210 East Hacienda Ave.
Campbell, CA 95008-6600
Telephone (408) 370-8000
Telex 910-338-7621
FAX 408 370-8056