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PDF Z08617 Data sheet ( Hoja de datos )
| Número de pieza | Z08617 | |
| Descripción | NMOS Z8 8-BIT MCU KEYBOARD CONTROLLER | |
| Fabricantes | Zilog. | |
| Logotipo |  |
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FEATURES
s Low Power Consumption - 750 mW
s 32 Input/Output Lines
s Digital Inputs NMOS Levels with
Internal Pull-Up Resistors
s 4 Kbytes ROM
s Four Direct Connect LED Drive Pins
s 124 Bytes of RAM
CUSTOMER P ROCUREMENT
SPECIFICA TION
Z08617 NMOS Z8® 8-BIT MCU
KEYBOARD CONTROLLER
Z08617
NMOS Z8® 8-BIT MCU
KEYBOARD CONTROLLER
s Hardware Watch-Dog Timer (WDT)
s Two Programmable 8-Bit Counter/Timers,
Each with 6-Bit Programmable Prescaler
s Six Vectored, Priority Interrupts from
Six Different Sources
s On-Chip RC Oscillator
s Clock Frequency: Up to 5MHz
s Low EMI Emission
GENERAL DESCRIPTION
The Z08617 Keyboard Controller is a member of the
Z8® single-chip microcontroller family with 4 Kbytes
of ROM. The device is housed in a 40-pin DIP package,
and is manufactured in NMOS technology. The Z08617
microcontroller offers fast execution, efficient use of
memory, sophisticated interrupt, input/output bit-
manipulation capabilities, and easy hardware/soft-
ware system expansion along with low cost and low
power consumption.
The Z08617 architecture is characterized by a flex-
ible I/O scheme, an efficient register, I/O, and a
number of ancillary features that are useful in many
industrial and advanced scientific applications.
For applications which demand powerful I/O capabili-
ties, the Z08617 provides 32 pins dedicated to input
and output. These lines are grouped into four ports,
each port consists of 8 lines, and are configurable
under software control to provide timing, status
signals, and serial or parallel I/O ports.
The Z08617 offers low EMI emission which is achieved
by means of several modifications in the output
drivers and clock circuitry of the device.
There are two basic address spaces which are avail-
able to support this wide range of configurations:
Program Memory and 124 General-Purpose Registers.
The Z08617 offers two on-chip counter/timers with
a large number of user-selectable modes. This unbur-
dens the program from coping with real-time prob-
lems such as counting/timing (Figure 1).
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
Circuit
Device
Power
Ground
VCC
GND
VDD
VSS
DS96KEY0300
1
1 page  
DC CHARACTERISTICS
VCC = 4.75V to 5.25V @ 0°C to -55°C
Sym Parameter
VIH Input High Voltage
VIL Input Low Voltage
V Reset Input High Voltage
RH
V Reset Input Low Voltage
RL
V Output High Voltage
OH
Output High Voltage
VOL
I
IL
I
OL
I
IR
IR1
I
R2
I
CC
WDT
Output Low Voltage
Input Leakage
Output Leakage
Reset Input Current
Input Current
Input Current
V Supply Current
CC
Watch-Dog Timer
Min
2.0
–0.3
3.8
–0.3
2.0
2.4
–10
–10
–335
–335
–1.6
Max
VCC
0.8
V
CC
0.8
0.8
10
10
–775
–775
–2.9
160
2.0
Typ* Unit
V
V
V
V
V
V
V
µA
µA
–477 µA
µA
mA
mA
mA
Z08617 NMOS Z8® 8-BIT MCU
KEYBOARD CONTROLLER
Condition
I
OH
=
–250
µA
(Port
2
only)
IOH = –250 µA (Port 3 only)
IOL = 10.0 mA (See note [1] below.)
V = 0V, 5.25V (See note [3] below.)
IN
V = 0V, 5.25V (See note [2] below.)
IN
V = 0V, 5.25V
IN
Pull-up resistor=10.4 Kohms, VIN=0.0V
Pull-up resistor = 2.4 Kohms, V =0.0V
IN
VOL=0.4 Volt
Notes:
* Typical @ 25°C
[ 1 ] Ports P37-P34 may be used to sink 12 mA. These may be used
for LEDs or as general-purpose outputs requiring high sink
current.
[ 2 ] P00-P07, P10-P17, P20-P25, P30-P33 as output mode open-
drain as a logic one.
[ 3 ] P00-P07, P10-P17, P20-P25, P30-P33 as output mode open-
drain as a logic one.
5
5 Page 
Z08617 NMOS Z8® 8-BIT MCU
KEYBOARD CONTROLLER
FUNCTIONAL DESCRIPTION (Continued)
Register File. The register file (Figure 10) consists of four
I/O port registers, 124 general-purpose registers and 16
control and status registers (R3-R0, R127-R4, and R255-
R240, respectively). The instructions can access registers
directly or indirectly through an 8-bit address field. This
allows short, 4-bit register addressing using the Register
Pointer (Figure 11). In the 4-bit mode, the register file is
divided into nine working-register groups, each occupy-
ing 16 continuous locations. The Register Pointer ad-
dresses the starting location of the active working-register
group.
LOCATION
R255
R254
R253
R252
R251
R250
R249
R248
R247
R246
R245
R244
R243
R242
R241
R240
R127
R4
R3
R2
R1
R0
Stack Pointer (Bits 7-0)
General-Purpose Register (Bits 7-0)
Register Pointer
Program Control Flags
Interrupt Mask Register
Interrupt Request Register
Interrupt Priority Register
Ports 1-0 Mode
Port 3 Mode
Port 2 Mode
T0 Prescaler
Timer/Counter0
T1 Prescaler
Timer/Counter1
Timer Mode
Reserved
Not Implemented
General-Purpose
Registers
Port 3
Port 2
Port 1
Port 0
IDENTIFIERS
SPL
GPR
RP
FLAGS
IMR
IRQ
IPR
P01M
P3M
P2M
PREQ
T0
PRE1
T1
TMR
P3
P2
P1
P0
r7 r6 r5 r4
r3 r2 r1 r0
R253
(Register Pointer)
The upper nibble of the register file address
provided by the register pointer specifies
the active working-register group.
FF
Register Group F
F0
•
•
•
•
•
•
•
•
R15 to R0
•
•
•
•
• Specified Working
• Register Group
2F
20
1F
Register Group 1
10
0F
Register Group 0
I/O Ports
00
The lower nibble
of the register
file address
provided by the
instruction points
to the specified
register.
R15 to R0
R15 to R4
R3 to R0
Figure 11. Register Pointer Configuration
Figure 10. Register File Configuration
11
11 Page | ||
| Páginas | Total 26 Páginas | |
| PDF Descargar | [ Datasheet Z08617.PDF ] | |
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