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Z86251 PDF даташит

Спецификация Z86251 изготовлена ​​​​«Zilog.» и имеет функцию, называемую «STARSIGHT DATABASEENGINE».

Детали детали

Номер произв Z86251
Описание STARSIGHT DATABASEENGINE
Производители Zilog.
логотип Zilog. логотип 

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Z86251 Даташит, Описание, Даташиты
Z86251
CP96TEL1900
CUSTOMERPROCUREMENTSPECIFICATION
FEATURES
s Part
Z86251
Package
68-Pin PLCC
Speed (MHz)
24
s 4.5- to 5.5-Volt Operating Range
s 0°C to +70°C Temperature Range
s Low-Power Consumption
s Segmented Base Registers
s DRAM Memory Control and Refresh Logic
Z86251
STARSIGHTDATABASEENGINE
s Power-Down DRAM Data Retention
s Infrared Transmitter Circuits for TV and VCR Control
s CRC-32 Encoding and Decoding Logic
s Watch-Dog Timer (WDT) for Error Recovery
s I2C Compatible Bus for External Communication
s Test Multiplexer for Chip Debug
s On-Chip Crystal Oscillator
GENERAL DESCRIPTION
Zilog's Z86251 StarSight Data Base Engine (DBE) is
designed to process extracted data for the StarSight
on-screen programming guide.
For fast memory data manipulation, the Z86251 offers
segmented base registers. The device also features
DRAM memory control and refresh logic.
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.
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 be-
low:
Connection
Power
Ground
Circuit
VCC
GND
Device
VDD
VSS
CP96TEL1900 (8/96)
1









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Z86251 Даташит, Описание, Даташиты
PIN DESCRIPTION
Z86251
CP96TEL1900
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
9 8 7 6 5 4 3 2 1 68 67 66 65 64 63 62 61
10 60
11 59
12 58
13 57
14 56
15 55
16 54
17
Z86251
68-Pin
53
18
PLCC
52
19 51
20 50
21 49
22 48
23 47
24 46
25 45
26 44
27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43
PED A1
PED A0
PLPOSC2
PLPOSC1
PIO7
PIO6
PIO4
VDD4
GND4
PIO3
PIO2
PIO1
PIO0
PISB DTA
PISB CLK
P XRESET
PXLPWARN
Z86251 68-Pin PLCC
Pin Assignments
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Z86251 Даташит, Описание, Даташиты
PIN DESCRIPTION (Continued)
Z86251
CP96TEL1900
Z86251 Pinouts
3










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Номер в каталогеОписаниеПроизводители
Z86250STARSIGHT DATABASEENGINEZilog.
Zilog.
Z86251STARSIGHT DATABASEENGINEZilog.
Zilog.

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