COPCH682C Datasheet PDF - National Semiconductor
| Part Number | COPCH682C | |
| Description | Microcontrollers | |
| Manufacturers | National Semiconductor | |
| Logo |  |
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August 1996
COP880C
Microcontrollers
General Description
The following part numbers are pin count and tempera-
ture variations of the COP880C: COP680C/COP681C/
COP682C/COP881C
/COP882C/COP980C/
COP981C/COP982C.
The COP880C devices are members of the COP8 microcon-
troller family. They are fully static parts, fabricated using
double-metal silicon gate microCMOS technology. This low
cost microcontroller is a complete microcomputer containing
all system timing, interrupt logic, ROM, RAM, and I/O nec-
essary to implement dedicated control functions in a variety
of applications. Features include an 8-bit memory mapped
architecture, MICROWIRE/PLUS™ serial I/O, a 16-bit timer/
counter with capture register and a multi-sourced interrupt.
Each I/O pin has software selectable options to adapt the
device to the specific application. The part operates over a
voltage range of 2.5 to 6.0V. High throughput is achieved
with an efficient, regular instruction set operating at a 1
microsecond per instruction rate.
Key Features
n — 16-bit multi-function timer supporting
— PWM mode
— External event counter mode
— Input capture mode
n 4 kbytes of ROM
n 128 bytes of RAM
I/O Features
n Memory mapped I/O
n Software selectable I/O options (TRI-STATE®, Push-Pull,
Weak Pull-Up Input, High Impedance Input)
n High current outputs (8 pins)
n Schmitt trigger inputs on Port G
n MICROWIRE PLUS serial I/O
n Packages:
— 20 DIP/SO with 16 I/O pins
— 28 DIP/SO with 24 I/O pins
— 40 DIP, 36 I/O pins
— 44 PLCC, 36 I/O pins
CPU/Instruction Set Features
n 1 µs instruction cycle time
n Three multi-source interrupts servicing
— External interrupt with selectable edge
— Timer interrupt
— Software interrupt
n Versatile and easy to use instruction set
n 8-bit Stack Pointer (SP) — stack in RAM
n Two 8-bit Register Indirect Data Memory Pointers
(B and X)
Fully Static CMOS
n Low current drain (typically < 1 µA)
n Single supply operation: 2.5V to 6.0V
n Temperature ranges: 0˚C to 70˚C, −40˚C to +85˚C,
−55˚C to +125˚C.
Development Support
n Emulation and OTP devices
n Real time emulation and full program debug offered by
MetaLink’s development system
TRI-STATE® is a registered trademark of National Semiconductor Corporation.
COPS™, HPC™, MICROWIRE™ and MICROWIRE/PLUS™ are trademarks of National Semiconductor Corporation.
iceMASTER™ is a trademark of MetaLink Corporation.
PC-XT® and PC-AT® are registered trademarks of International Business Machines Corporation.
© 2001 National Semiconductor Corporation DS010802
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DC Electrical Characteristics (Continued)
COP98xC; 0˚C ≤ TA ≤ +70˚C unless otherwise specified
Parameter
Condition
Maximum Input Current (Note 5)
Without Latchup (Room Temp)
Room Temp
RAM Retention Voltage, Vr
500 ns Rise and
(Note 6)
Fall Time (Min)
Input Capacitance
Load Capacitance on D2
Min Typ Max Units
±100
mA
2.0 V
7 pF
1000
pF
COP980C/COP981C/COP982C
Note 2: Rate of voltage change must be less than 0.5V/ms.
Note 3: Supply current is measured after running 2000 cycles with a square wave CKI input, CKO open, inputs at rails and outputs open.
Note 4: The HALT mode will stop CKI from oscillating in the RC and the Crystal configurations. Test conditions: All inputs tied to VCC, L, C and G ports TRI-STATE
and tied to ground, all outputs low and tied to ground.
Note 5: 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 750Ω (typ). These two pins will not latch up. The voltage at the pins must be limited to less than 14V.
Note 6: To maintain RAM integrity, the voltage must not be dropped or raised instantaneously.
AC Electrical Characteristics
0˚C ≤ TA ≤ +70˚C unless otherwise specified
Parameter
Condition
Instruction Cycle Time (tc)
Crystal/Resonator or External
(Div-by 10)
R/C Oscillator Mode
(Div-by 10)
CKI Clock Duty Cycle (Note 7)
VCC ≥ 4.0V
2.3V ≤ VCC ≤ 4.0V
VCC ≥ 4.0V
2.3V ≤ VCC ≤ 4.0V
fr = Max
Rise Time (Note 7)
fr = 10 MHz Ext Clock
Fall Time (Note 7)
fr = 10 MHz Ext Clock
Inputs
tSETUP
tHOLD
Output Propagation Delay
tPD1, tPD0
SO, SK
All Others
MICROWIRE™ Setup Time (tUWS)
MICROWIRE Hold Time (tUWH)
MICROWIRE Output
VCC ≥ 4.0V
2.3V ≤ VCC ≤ 4.0V
VCC ≥ 4.0V
2.3V ≤ VCC ≤ 4.0V
CL = 100 pF, RL = 2.2 kΩ
VCC ≥ 4.0V
2.3V ≤ VCC ≤ 4.0V
VCC ≥ 4.0V
2.3V ≤ VCC ≤ 4.0V
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
Min Typ
1
2.5
3
7.5
40
200
500
60
150
20
56
tC
tC
tC
tC
1.0
Max
DC
DC
DC
DC
60
12
8
0.7
1.75
1
2.5
220
Units
µs
µs
µs
µs
%
ns
ns
ns
ns
ns
ns
µs
µs
µs
µs
ns
ns
ns
µs
Note 7: Parameter characterized but not production tested.
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