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PDF COP988CL Data sheet ( Hoja de datos )
| Número de pieza | COP988CL | |
| Descripción | 8-Bit Microcontroller | |
| Fabricantes | National Semiconductor | |
| Logotipo |  |
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September 1996
COP688CL COP684CL COP888CL COP884CL
COP988CL COP984CL 8-Bit Microcontroller
General Description
The COP888 family of microcontrollers uses an 8-bit single
chip core architecture fabricated with National Semiconduc-
tor’s M2CMOSTM process technology The COP888CL is a
member of this expandable 8-bit core processor family of
microcontrollers
(Continued)
Key Features
Y Two 16-bit timers each with two 16-bit registers
supporting
Processor Independent PWM mode
External Event counter mode
Input Capture mode
Y 4 kbytes of on-chip ROM
Y 128 bytes of on-chip RAM
Additional Peripheral Features
Y Idle Timer
Y Multi-input Wake Up (MIWU) with optional interrupts (8)
Y WATCHDOGTM and Clock Monitor logic
Y MICROWIRE PLUSTM serial I O
I O Features
Y Memory mapped I O
Y Software selectable I O options (TRI-STATE Output
Push-Pull Output Weak Pull-Up Input High Impedance
Input)
Y High current outputs
Y Schmitt trigger inputs on port G
Y Packages
44 PLCC with 40 I O pins
40 DIP with 36 I O pins
28 DIP with 24 I O pins
28 SO with 24 I O pins
CPU Instruction Set Feature
Y 1 ms instruction cycle time
Y Ten multi-source vectored interrupts servicing
External Interrupt with selectable edge
Idle Timer T0
Timers (Each with 2 interrupts)
MICROWIRE PLUS
Multi-Input Wake Up
Software Trap
Default VIS (default interrupt)
Y Versatile and easy to use instruction set
Y 8-bit Stack Pointer (SP) stack in RAM
Y Two 8-bit Register Indirect Data Memory Pointers (B X)
Fully Static CMOS
Y Low current drain (typically k 1 mA)
Y Single supply operation 2 5V to 6 0V
Y Temperature ranges 0 C to a70 C b40 C to a85 C
b55 C to a125 C
Development Support
Y Emulation and OTP devices
Y Real time emulation and full program debug offered by
MetaLink Development System
Block Diagram
FIGURE 1 Block Diagram
TL DD 9766 – 1
TRI-STATE is a registered trademark of National Semiconductor Corporation
MICROWIRE PLUSTM M2CMOSTM COPSTM microcontrollers WATCHDOGTM and MICROWIRETM are trademarks of National Semiconductor Corporation
iceMASTERTM is a trademark of MetaLink Corporation
C1996 National Semiconductor Corporation TL DD 9766
RRD-B30M96 Printed in U S A
http www national com
Free Datasheet http://www.datasheet4u.com/
1 page  
DC Electrical Characteristics 0 C s TA s a70 C unless otherwise specified (Continued)
Parameter
Conditions
Min Typ
Max
TRI-STATE Leakage
Allowable Sink Source
Current per Pin
D Outputs (Sink)
All others
VCC e 6 0V
b1
a1
15
3
Maximum Input Current
without Latchup (Note 4)
TA e 25 C
g100
RAM Retention Voltage Vr
500 ns Rise
and Fall Time (Min)
2
Input Capacitance
7
Load Capacitance on D2
1000
Units
mA
mA
mA
mA
V
pF
pF
AC Electrical Characteristics 0 C s TA s a70 C unless otherwise specified
Parameter
Conditions
Min Typ Max Units
Instruction Cycle Time (tc)
Crystal or Resonator
R C Oscillator
Inputs
tSETUP
tHOLD
Output Propagation Delay (Note 5)
tPD1 tPD0
SO SK
All Others
MICROWIRETM Setup Time (tUWS)
MICROWIRE Hold Time (tUWH)
MICROWIRE Output Propagation Delay (tUPD)
Input Pulse Width
Interrupt Input High Time
Interrupt Input Low Time
Timer Input High Time
Timer Input Low Time
Reset Pulse Width
4V s VCC s 6V
2 5V s VCC k 4V
4V s VCC s 6V
2 5V s VCC k 4V
4V s VCC s 6V
2 5V s VCC k 4V
4V s VCC s 6V
2 5V s VCC k 4V
RL e 2 2k CL e 100 pF
4V s VCC s 6V
2 5V s VCC k 4V
4V s VCC s 6V
2 5V s VCC k 4V
1
25
3
75
200
500
60
150
20
56
1
1
1
1
1
DC ms
DC ms
DC ms
DC ms
ns
ns
ns
ns
07
1 75
1
25
220
ms
ms
ms
ms
ns
ns
ns
tc
tc
tc
tc
ms
Note 4 Pins G6 and RESET are designed with a high voltage input network for factory testing These pins allow input voltages greater than VCC and the pins will
have sink current to VCC when biased at voltages greater than VCC (the pins do not have source current when biased at a voltage below VCC) The effective
resistance to VCC is 750X (typical) These two pins will not latch up The voltage at the pins must be limited to less than 14V
Note 5 The output propagation delay is referenced to the end of the instruction cycle where the output change occurs
5 http www national com
Free Datasheet http://www.datasheet4u.com/
5 Page 
AC Electrical Characteristics (Continued)
TL DD 9766 – 26
FIGURE 2 MICROWIRE PLUS Timing
Pin Descriptions
VCC and GND are the power supply pins
CKI is the clock input This can come from an R C generat-
ed oscillator or a crystal oscillator (in conjunction with
CKO) See Oscillator Description section
RESET is the master reset input See Reset Description
section
The device contains three bidirectional 8-bit I O ports (C G
and L) where each individual bit may be independently con-
figured as an input (Schmitt trigger inputs on ports G and L)
output or TRI-STATE under program control Three data
memory address locations are allocated for each of these I
O ports Each I O port has two associated 8-bit memory
mapped registers the CONFIGURATION register and the
output DATA register A memory mapped address is also
reserved for the input pins of each I O port (See the memo-
ry map for the various addresses associated with the I O
ports ) Figure 3 shows the I O port configurations The
DATA and CONFIGURATION registers allow for each port
bit to be individually configured under software control as
shown below
CONFIGURATION DATA
Register
Register
Port Set-Up
0 0 Hi-Z Input
(TRI-STATE Output)
0 1 Input with Weak Pull-Up
1 0 Push-Pull Zero Output
1 1 Push-Pull One Output
PORT L is an 8-bit I O port All L-pins have Schmitt triggers
on the inputs
Port L supports Multi-Input Wakeup (MIWU) on all eight
pins L4 and L5 are used for the timer input functions T2A
and T2B
Port L has the following alternate features
L0 MIWU
L1 MIWU
L2 MIWU
L3 MIWU
L4 MIWU or T2A
L5 MIWU or T2B
L6 MIWU
L7 MIWU
Port G is an 8-bit port with 5 I O pins (G0 G2 – G5) an input
pin (G6) and two dedicated output pins (G1 and G7) Pins
G0 and G2 – G6 all have Schmitt Triggers on their inputs Pin
G1 serves as the dedicated WDOUT WATCHDOG output
while pin G7 is either input or output depending on the oscil-
lator mask option selected With the crystal oscillator option
selected G7 serves as the dedicated output pin for the CKO
clock output With the single-pin R C oscillator mask option
selected G7 serves as a general purpose input pin but is
also used to bring the device out of HALT mode with a low
to high transition There are two registers associated with
the G Port a data register and a configuration register
Therefore each of the 5 I O bits (G0 G2 – G5) can be indi-
vidually configured under software control
Since G6 is an input only pin and G7 is the dedicated CKO
clock output pin or general purpose input (R C clock config-
uration) the associated bits in the data and configuration
registers for G6 and G7 are used for special purpose func-
tions as outlined below Reading the G6 and G7 data bits
will return zeros
Note that the chip will be placed in the HALT mode by writ-
ing a ‘‘1’’ to bit 7 of the Port G Data Register Similarly the
chip will be placed in the IDLE mode by writing a ‘‘1’’ to bit 6
of the Port G Data Register
Writing a ‘‘1’’ to bit 6 of the Port G Configuration Register
enables the MICROWIRE PLUS to operate with the alter-
nate phase of the SK clock The G7 configuration bit if set
high enables the clock start up delay after HALT when the
R C clock configuration is used
Config Reg
Data Reg
G7 CLKDLY
HALT
G6 Alternate SK IDLE
Port G has the following alternate features
G0 INTR (External Interrupt Input)
G2 T1B (Timer T1 Capture Input)
G3 T1A (Timer T1 I O)
G4 SO (MICROWIRETM Serial Data Output)
G5 SK (MICROWIRE Serial Clock)
G6 SI (MICROWIRE Serial Data Input)
TL DD 9766 – 6
FIGURE 3 I O Port Configurations
11 http www national com
Free Datasheet http://www.datasheet4u.com/
11 Page | ||
| Páginas | Total 40 Páginas | |
| PDF Descargar | [ Datasheet COP988CL.PDF ] | |
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