FEATURES
Z86250
CP96TEL0302
CUSTOMER PROCUREMENT SPECIFICATION
Z86250
STARSIGHT DATABASE ENGINE
■ Part Package Speed (MHz)
Z86250 84-Pin PLCC 24
■ 4.3- to 5.5-Volt Operating Range
■ 0°C to +70°C Temperature Range
■ Low-Power Consumption
■ Segmented Base Registers
GENERAL DESCRIPTION
Zilog's Z86250 StarSight Data Base Engine (DBE) is
designed to process extracted data for the StarSight
on-screen programming guide. The device is logically
equivalent to the DBE1200 for StarSight applications.
The Z86250 provides a number of important peripheral
functions, such as the IR Blaster to send command signals
to the VCR, and low-power management to avoid loss of
data.
■ Infrared Receiver Logic
■ CRC-32 Encoding and Decoding Logic
■ Watch-Dog Timer (WDT) for Error Recovery
■ Serial I.M. and I2C Compatible Bus for External
Communication
■ Test Multiplexer for Chip Debug
For fast memory data manipulation, the Z86250 offers
segmented base registers. The device also features
PSRAM memory control and refresh logic.
The DBE is optimized to work with Zilog's Z89300 series of
TV controller devices to provide a cost-effective solution
for StarSight programming-guide data extraction and
display.
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).
CP96TEL0302 (2/96)
Power connections follow conventional descriptions below:
Connection Circuit Device
Power V
Ground GND V
CC
V
DD
SS
1
GENERAL DESCRIPTION (Continued)
Z86250
CP96TEL0302
Database Engine Block Diagram
2
PIN DESCRIPTION
2
P
P
I
K
P
PIRR/RDY
PIRR/CLK
PIRRDTA
PB1/INC
PBANDO
PTESTOUT
PXRFSH18
PRAM/A16
PRAM/A15
VDD
PRAM/A14
GND
PCE2/A17
PRAM/A12
PRAM/A7
PRF/SEL0
PERF/SEL1
PPERF/SEL
PPWM/OUT
PSPARE
PXLPWARN
Z86250
CP96TEL0302
11 75
PX/RESET
12
P/IM/DATA
PIM/CLK
PIMI/DEN
XRAMWE1
XRAMWE0
PRAM/A13
PRAM/A8
PRAM/A6
PRAM/A9
GND2
84-Pin PLCC
VDD2
PRAM/A5
PRAM/A11
PRAM/A4
PRAM/A10
PXRAMOE0
PXRAMOE1
PXCE1
P6805CLK
POSC/2
32
33
184
Z86250
42 43
74
PBAND2
PISB/DTA
PISB/CLK
P/A7
P/A6
P/A5
P/A4
PXTAL2
PXTAL1
VDD4
GND4
P/A3
P/A2
P/A1
P/A0
PIR/XCL
P/A8
P/A9
P/A10
P/A11
54
P/A12
53
P/XRD
P/XWR
PXISBINT
DRAM/EN
PUPRESET
P/AD2
P/AD1
P/AD0
PXENBASE
Z86250 84-Pin PLCC
Pin Assignments
GND3
P/AD3
VDD3
P/AD4
P/AD6
P/AD5
P/ALE
P/AD7
P/A15
P/XPSEN
P/A14
P/A13
3
PIN DESCRIPTION (Continued)
Z86250
CP96TEL0302
Z86250 Pinouts
4
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Min Max Units Conditions
Z86250
CP96TEL0302
V
DD
T
A
T
S
Power Supply Voltage –0.3 7 V All pins with respect to GND
Operating Ambient Temp. 0 70 °C
Storage Temperature –65 150 °C
Stress 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 sec-
tions of these specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods
may affect device reliability.
5
CP96TEL0302
DC CHARACTERISTICS
TA = 0°C to + 70°C; VCC = 4.3 V to + 5.5 V
Symbol Parameter Min Max Typical Units Conditions Notes
Z86250
V
V
V
V
V
V
VX
VX
VX
VX
I
OL1
I
OL1
I
OL2
I
OL2
V
V
I
DD1
I
DD2
IL
IH
OL1
OH1
OL2
OH2
DD1
DD2
IL1
IH1
OL2
OH2
Input Voltage Low 0 0.2 V
Input Voltage High 0.5 V
DD
DD
V
DD
Output Voltage Low 0.16 0.4 V @ I
Output Voltage High V
–0.4 4.75 V
DD
Output Voltage Low 0.16 0.4 V @ I
Output Voltage High VDD –0.4 4.75 V
Input Voltage Low 0.2 V
Input Voltage High 0.7 V
DD
0.4 V (except XTAL1)
3.6 V (except XTAL1)
DD
DD
DD
V@ I
V@ I
V for XTAL1
OH1
OH1
OH2
OH2
V for XTAL1
Output Voltage Low 0.16 0.4 V for XTAL2 @ 4.5 mA
Output Voltage High VDD –0.4 4.75 V
DD
V for XTAL2 @ 3.7 mA
Output Current Low 2.5 mA
Output Current High 1.5 mA
Output Current Low 10 mA
Output Current High 6 mA
Operating Supply Voltage 4.3 5.0 5.5 V
Sleep Supply Voltage 3.0 5.5 V
Operating Supply Current 40 mA
Operating Supply Current 10 µA
AC CHARACTERISTICS
TA = 0°C to + 70°C; VDD = 4.3 V to + 5.5 V
Symbol Parameter Min Max Typical Units Conditions Notes
fosc Oscillator Frequency 24 MHz
V
IN
V
OUT
Absolute Min/Max
Input Voltage Range –0.3 V
Absolute Min/Max
Output Voltage Range –0.3 V
+ 0.3 V
DD
+ 0.3 V
DD
6
I/O READ ADDRESS REGISTER SUMMARY
Z86250
CP96TEL0302
I/O Read Address Register Summary
Table
7
I/O WRITE ADDRESS REGISTER SUMMARY
Z86250
CP96TEL0302
I/O Write Address Register Summary
Table
8
Z86250
CP96TEL0302
© 1996 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.
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
FAX 408 370-8056
Internet: http://www.zilog.com
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