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Z86251 CP96TEL1900
CUSTOMERPROCUREMENTSPECIFICATION
Z86251
STARSIGHTDATABASEENGINE
FEATURES
s Part
Z86251
Package
68-Pin PLCC
Speed (MHz)
24
s s
Power-Down DRAM Data Retention Infrared Transmitter Circuits for TV and VCR Control CRC-32 Encoding and Decoding Logic Watch-Dog Timer (WDT) for Error Recovery I2C Compatible Bus for External Communication Test Multiplexer for Chip Debug On-Chip Crystal Oscillator
s s s s s
4.5- to 5.5-Volt Operating Range s 0C to +70C Temperature Range s Low-Power Consumption s Segmented Base Registers s DRAM Memory Control and Refresh Logic s
GENERAL DESCRIPTION
Zilog's Z86251 StarSight Data Base Engine (DBE) is designed to process extracted data for the StarSight on-screen programming guide. The Z86251 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. For fast memory data manipulation, the Z86251 offers segmented base registers. The device also features DRAM 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). Power connections follow conventional descriptions below:
Connection Power Ground Circuit VCC GND Device VDD VSS
CP96TEL1900 (8/96)
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Z86251 CP96TEL1900
PIN DESCRIPTION
9 P AD0 P AD1 P AD2 P AD3 P AD4 P AD5 P AD6 P AD7 GND2 VDD2 P XWR P XRD P ALE P XPSEN POSC 2 P A15 P A14 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26
AT A0 PR DA PR TA1 DA TA PR 2 DA TA PX 3 W E PX CA PX S RA VD S D1 GN D1 PE D A PE 9 D A PE 8 D A PE 7 D A PE 6 D A PE 5 D A PE 4 D A PE 3 D A2
8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61 60 59 58 57 56 55 54 PED A1 PED A0 PLPOSC2 PLPOSC1 PIO7 PIO6 PIO4 VDD4 GND4 PIO3 PIO2 PIO1 PIO0 PISB DTA PISB CLK P XRESET PXLPWARN
PR D
Z86251 68-Pin PLCC
53 52 51 50 49 48 47 46 45 44
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
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PA 11 PA 10 PA 9 PB P A AN 8 PX D2 I IS BI NT GN D3 PU VDD PR 3 ES P DR E AM T EN PI O5 P6 80 5C PX LK TA PX L1 TA L2 PI R XC LK
Z86251 68-Pin PLCC Pin Assignments
13 PA
PA
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Z86251 CP96TEL1900
PIN DESCRIPTION (Continued)
Z86251 Pinouts
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Z86251 CP96TEL1900
ABSOLUTE MAXIMUM RATINGS
Symbol VDD TA TS Parameter Power Supply Voltage Operating Ambient Temp. Storage Temperature Min -0.3 0 -65 Max 7 70 150 Units V C C Conditions All pins with respect to GND
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.
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Z86251 CP96TEL1900
DC CHARACTERISTICS TA = 0C to + 70C; VCC = 4.5 V to + 5.5 V
Symbol VIL VIH VOL1 VOH1 VOL2 VOH2 VXIL1 VXIH1 VXOL2 VXOH2 IOL1 IOL1 IOL2 IOL2 VDD1 IDD1 IDD2 Parameter Input Voltage Low Input Voltage High Output Voltage Low Output Voltage High Output Voltage Low Output Voltage High Input Voltage Low Input Voltage High Output Voltage Low Output Voltage High Output Output Output Output Current Current Current Current Low High Low High Min 0 0.5 V DD V DD -0.4 V DD -0.4 0.7 V DD V DD -0.4 2.5 1.5 10 6 4.3 5.0 5.5 40 10 0.16 4.75 0.4 VDD Max 0.2 VDD VDD 0.16 4.75 0.16 4.75 Typical 0.4 3.6 0.4 VDD 0.4 VDD 0.2 VDD Units V V V V V V V V V V mA mA mA mA V mA A Conditions (except XTAL1) (except XTAL1) @ I OH1 @ I OH1 @ I OH2 @ I OH2 for XTAL1 for XTAL1 for XTAL2 for XTAL2 @ 4.5 mA @ 3.7 mA Notes
Operating Supply Voltage Operating Supply Current Operating Supply Current
AC CHARACTERISTICS TA = 0C to + 70C; VDD = 4.5 V to + 5.5 V
Symbol fosc VIN VOUT Parameter Oscillator Frequency Absolute Min/Max Input Voltage Range Absolute Min/Max Output Voltage Range Min Max Typical 24 -0.3 -0.3 VDD + 0.3 VDD + 0.3 Units MHz V V Conditions Notes
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Z86251 CP96TEL1900
I/O READ ADDRESS REGISTER SUMMARY
I/O Read Address Register Summary Table
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Z86251 CP96TEL1900
I/O WRITE ADDRESS REGISTER SUMMARY
I/O Write Address Register Summary Table
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Z86251 CP96TEL1900
(c) 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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