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PDF Z86251 Data sheet ( Hoja de datos )
| Número de pieza | Z86251 | |
| Descripción | STARSIGHT DATABASEENGINE | |
| Fabricantes | Zilog. | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de Z86251 (archivo pdf) en la parte inferior de esta página. Total 8 Páginas | ||
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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
1 page  
DC CHARACTERISTICS
T
A
=
0°C
to
+
70°C;
V
CC
=
4.5
V to + 5.5 V
Symbol
VIL
VIH
VOL1
VOH1
V
OL2
V
OH2
VXIL1
VX
IH1
VX
OL2
VX
OH2
I
OL1
IOL1
I
OL2
I
OL2
VDD1
IDD1
I
DD2
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 Current Low
Output Current High
Output Current Low
Output Current High
Min
0
0.5 VDD
VDD –0.4
V –0.4
DD
0.7 V
DD
V –0.4
DD
2.5
1.5
10
6
Operating Supply Voltage 4.3
Operating Supply Current
Operating Supply Current
Max
0.2 VDD
VDD
0.16
4.75
0.16
4.75
0.16
4.75
5.0
Typical
0.4
3.6
0.4
VDD
0.4
V
DD
0.2 VDD
0.4
V
DD
5.5
40
10
Units
V
V
V
V
V
V
V
V
V
V
mA
mA
mA
mA
V
mA
µA
Conditions
(except XTAL1)
(except XTAL1)
@ IOH1
@ IOH1
@I
OH2
@I
OH2
for XTAL1
for XTAL1
for XTAL2
for XTAL2
Z86251
CP96TEL1900
Notes
@ 4.5 mA
@ 3.7 mA
AC CHARACTERISTICS
TA = 0°C to + 70°C; VDD = 4.5 V to + 5.5 V
Symbol
fosc
V
IN
VOUT
Parameter
Oscillator Frequency
Absolute Min/Max
Input Voltage Range
Absolute Min/Max
Output Voltage Range
Min
–0.3
–0.3
Max
V + 0.3
DD
Typical
24
Units
MHz
V
Conditions
VDD + 0.3
V
Notes
5
5 Page | ||
| Páginas | Total 8 Páginas | |
| PDF Descargar | [ Datasheet Z86251.PDF ] | |
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