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PDF Z86319 Data sheet ( Hoja de datos )
| Número de pieza | Z86319 | |
| Descripción | PS/2 MOUSE CONTROLLER | |
| Fabricantes | Zilog | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de Z86319 (archivo pdf) en la parte inferior de esta página. Total 23 Páginas | ||
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PRELIMINARY PRODUCT SPECIFICATION
1
Z86319
PS/2 MOUSE CONTROLLER
1
www.DataSFheEetA4UT.cUomRES
Device
ROM
(KB)
RAM* I/O
(Bytes) Lines
Z86319 2 125 13
Note: *General-Purpose (144K Total RAM)
Voltage
Range
4.5V to 5.5V
s 0°C to + 40°C Operating Temperature Range
s Low-Power Consumption: 25 mW (Typical)
s P24-P27 Can Be Configured with a Voltage Divider
During Input Mode
s On-Chip Oscillator (Tolerance = ±10%)
s Fast Instruction Pointer: 1.5 µs @ 4 MHz
s ESD Protection Circuitry
s Hardwired Watch-Dog Timer (WDT)
s Excellent System Level EMI/EFT/ESD
GENERAL DESCRIPTION
The Z86319 is a member of the Z8 family of CMOS micro-
controllers architecture to be used in mouse applications.
These devices offer on-board pull-up and pull-down resis-
tors, a trip-point buffer to accommodate opto-transistor
outputs, and high drive ports capable of up to 10 mA cur-
rent sinking per pin (3 pins maximum).
A permanently enabled Watch-Dog Timer ensures opera-
tional reliability across a broad range of mouse application
environments. The precision RC oscillator filters out high-
frequency noise from the oscillator input pin. When config-
ured as inputs, P24-P27 have built in voltage dividers (25K
pull-up /7.5K pull-down). The input levels are designed for
connection to the emitters of the opto-transistors and
switch at a voltage level of 0.4 VDD.
For applications requiring powerful I/O capabilities, the
Z86319 provides dedicated input and output lines that are
grouped into three ports. There are two basic address
spaces available to support this configuration: Program
Memory, and 125 bytes of general-purpose registers.
The Z86319 device provides two on-chip 8-bit programma-
ble counter/timers with a large number of user-selectable
modes. Each counter/timer is driven by its own 6-bit pro-
grammable prescaler. The Z86319 counter/timers off-load
system real-time tasks such as counting/timing and in-
put/output data communications for increased system effi-
ciency.
DS97KEY1605
PRELIMINARY
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Zilog
STANDARD TEST CONDITIONS
The characteristics listed below apply for standard test
conditions as noted. All voltages are referenced to
Ground. Positive current flows into the referenced pin
(Figure 4).
From Output
Under Test
Z86319
PS/2 Mouse Controller
1
I 150 pF
www.DataSheet4U.com
ABSOLUTE MAXIMUM RATINGS
Sym Parameter
Min Max
VDD
TSTG
TA
Supply Voltage*
Storage Temp
Oper Ambient
Temp
–0.3
–65°
0°
+7
+150°
40°
Notes:
*Voltages on all pins with respect to Ground.
Units
V
C
C
Figure 4. Test Load Diagram
Stresses greater than those listed under Absolute Maxi-
mum Ratings may cause permanent damage to the device.
This rating is a stress rating only; operation of the device
at any condition above those indicated in the operational
sections of these specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods
may affect device reliability.
CAPACITANCE
TA = GND = 0V, f = 1.0 MHz, unmeasured pins returned to Ground.
Parameter
Input Capacitance
Output Capacitance
I/O Capacitance
Min Max
0 10 pF
0 20 pF
0 25 pF
VCC SPECIFICATION
VCC = 4.5V to 5.5V
Using the precision RC oscillator feature, f = 4.0 MHz ±10% under the following conditions:
s VCC = 5.0V ±10%
s Temp 0 to 40°C
s Application board capacitance:
– 2.0 pF max.
– 0.5 pF min.
DS97KEY1605
PRELIMINARY
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Zilog
www.DataSheet4U.com
Open-Drain
OE
Out
In
Z86319
PS/2 Mouse Controller
VDD
1
Pad
Figure 10. Port 2 P21, P23 Configuration
Resistance Tolerance (0-40°C)
Min. Max.
Pull-Down 5.2K 8.9K
Pull-Up 18K 30K
25K
7.5K
Open-Drain
OE
Out
In
0.4 VDD ± 300 mV
Trip Point Buffer
Figure 11. Port 2 P27-P24 Configuration
Pad
DS97KEY1605
PRELIMINARY
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11 Page | ||
| Páginas | Total 23 Páginas | |
| PDF Descargar | [ Datasheet Z86319.PDF ] | |
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