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Part: COPCJ840
Category:
Microcontrollers
-> CISC->COPS
Description: 8-bit Microcontrollers With Multi-input Wake-up And Brown Out Detector
Company: National Semiconductor Corporation
Datasheet: Download COPCJ840 datasheet File size : 8710 kB
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Datasheet text preview:
COP840CJ/COP842CJ/COP940CJ/COP942CJ 8-Bit Microcontrollers with Multi-Input Wake-Up and Brown Out Detector
OBSOLETE
January 2000
COP840CJ/COP842CJ/COP940CJ/COP942CJ 8-Bit Microcontrollers with Multi-Input Wake-Up and Brown Out Detector
General Description
The COP840CJ is a member of the COP8TMfeature family 8-bit microcontroller. It is a fully static Microcontroller, 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 necessary to implement dedicated control functions in a variety of applications. Features include an 8-bit memory mapped architecture, MICROWIRETM serial I/O, a 16-bit timer/counter with capture register, a multi-sourced interrupt, Comparator, WATCHDOGTM Timer, Modulator/Timer, Brown out detection and Multi Input Wake-up. Each I/O pin has software selectable options to adapt the device to the specific application. The device operates over a voltage range of 2.5V 6.0V. High throughput is achieved with an efficient, regular instruction set operating at a 1 ms per instruction rate. Low radiated emissions are achieved by gradual turn on output drivers and internal ICC filters on the chip logic and crystal oscillator. n n n n n n n n n n n Integrated capacitor for the R/C oscillator 2048 bytes of ROM 128 bytes of RAM Memory mapped I/O Software selectable I/O options (TRI-STATE ® , push-pull, weak pull-up input, high impedance input) High current outputs (8 pins) Schmitt trigger inputs on Port G MICROWIRE/PLUSTM serial I/O Packages: 20 DIP/SO with 16 I/O pins 28 DIP/SO with 24 I/O pins 1 µs instruction cycle time Three multi-source interrupts servicing -- External interrupt with selectable edge -- Timer interrupt -- Software interrupt Versatile and easy to use instruction set 8-bit Stack Pointer (SP) -- stack in RAM Two 8-bit register indirect data memory pointers (B and X)
n n n
Features
Multi-Input wake-up (on the 8-bit Port L) Brown out detection Analog comparator Modulator/Timer (high speed PWM timer for IR transmission) n 16-bit multi-function timer supporting -- PWM mode -- External event counter mode -- Input capture mode n Quiet design (low radiated emissions) n n n n
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. WATCHDOGTM, MICROWIRE/PLUSTM, COP8TM, and MICROWIRETM are trademarks of National Semiconductor Corporation. iceMASTERTM is a trademark of MetaLink Corporation.
© 2000 National Semiconductor Corporation
DS012851
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COP840CJ/COP842CJ/COP940CJ/COP942CJ
Block Diagram
DS012851-1
Connection Diagrams
DS012851-3
DS012851-2
Top View Order Number COP840CJ-XXX/N or COP840CJ-XXX/M, COP940CJ-XXX/N or COP940CJ-XXX/M See NS Package Number N28B or M28B
Top View Order Number COP842CJ-XXX/N or COP842CJ-XXX/M COP942CJ-XXX/N or COP942CJ-XXX/M See NS Package Number N20A or M20B
FIGURE 1. Connection Diagrams
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COP840CJ/COP842CJ/COP940CJ/COP942CJ
Pin Assignment
Port PIN L0 L1 L2 L3 L4 L5 L6 L7 G0 G1 G2 G3 G4 G5 G6 G7 I0 I1 I2 I3 D0 D1 D2 D3 VCC GND CKI RESET I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I/O I I I I I I O O O O 6 15 5 16 TIO SO SK SI CKO Type ALT Funct. MIWU/ CMPOUT MIWU/ CMPIN- MIWU/ CMPIN+ MIWU MIWU MIWU MIWU MIWU/ MODOUT INTR 17 18 19 20 1 2 3 4 25 26 27 28 1 2 3 4 7 8 9 10 19 20 21 22 6 23 5 24 10 11 12 13 14 14 15 16 17 18 9 13 8 12 7 11 20-Pin 28-Pin
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COP840CJ/COP842CJ/COP940CJ/COP942CJ
Absolute Maximum Ratings (Note 1)
If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage (VCC) Voltage at Any Pin 7.0V -0.3V to VCC +0.3V
Total Current into VCC Pin (source) Total Current out of GND Pin (sink) Storage Temperature Range
80 mA 80 mA -65°C to +150°C
Note 1: Absolute maximum ratings indicate limits beyond which damage to the device may occur. DC and AC electrical specifications are not ensured when operating the device at absolute maximum ratings.
DC Electrical Characteristics COP94x
0°C TA +70°C unless otherwise specified Parameter Operating Voltage COP94xCJ COP94xCJH Power Supply Ripple (Note 2) Supply Current (Notes 3, 6) CKI = 10 MHz, R = 2.2k CKI = 4 MHz, R = 4.7k CKI = 4 MHz, R = 4.7k CKI = 1 MHz, R = 20k HALT Current with Brown Out Disabled (Note 4) HALT Current with Brown Out Enabled Brown Out Trip Level (Brown Out Enabled) INPUT LEVELS (VIH, VIL) Reset, CKI: Logic High Logic Low All Other Inputs Logic High Logic Low Hi-Z Input Leakage Input Pullup Current L- and G-Port Hysteresis Output Current Levels D Outputs: Source Sink L4 L7 Output Sink All others Source (Weak Pull-up Mode) Sink (Push-Pull Mode) TRI-STATE Leakage VCC = 4.5V, VCC = 2.5V, VCC = 4.5V, VCC = 2.5V, VOH = 3.2V VOH = 1.8V VOL = 0.4V VOL = 0.4V -10 -2.5 1.6 0.7 -2.0 +2.0 -110 -33 µA µA mA mA µA VCC = 4.5V, VCC = 2.5V, VCC = 4.5V, VCC = 2.5V, VCC VOH = 3.8V VOH = 1.8V VOL = 1.0V -0.4 -0.2 10 2 15 mA mA mA mA mA VCC VCC = 6.0V = 6.0V -2 -40 0.05 VCC 0.7 VCC 0.2 VCC +2 -250 0.35 VCC V V µA µA V 0.8 VCC 0.2 VCC V V 1.9 3.1 3.9 V VCC = 6V, CKI = 0 MHz Peak-to-Peak VCC = 6V, tC = 1 µs VCC = 6V, tC = 2.5 µs VCC = 4.5V, tC = 2.5 µs VCC VCC = 4.5V, tC = 10 µs = 6V, CKI = 0 MHz Brown Out Disabled 2.5 4.5 4.5 6.0 0.1 VCC 8.0 6.0 2.5 1.5 V V V mA mA mA mA µA µA Condition Min Typ Max Units
< 2.2 < 50
8 100
VOH = 0.4V = 4.5V, VOL = 2.5V
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COP840CJ/COP842CJ/COP940CJ/COP942CJ
DC Electrical Characteristics COP94x
0°C TA +70°C unless otherwise specified Parameter Allowable Sink/Source Current per Pin D Outputs L4 L7 (sink) All Others Maximum Input Current without Latchup (Note 5) RAM Retention Voltage, Vr Input Capacitance Load Capacitance on D2
Note 2: Rate of voltage change must be
(Continued)
Condition
Min
Typ
Max
Units
15 20 3
mA mA mA mA V
± 100
500 ns Rise and Fall Time (min) 2.0 7 1000
< 10V/ms.
pF pF
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 crystal configurations. HALT test conditions: L, and G0..G5 ports configured as outputs and set high. The D port set to zero. All inputs tied to VCC. The comparator and the Brown Out circuits are disabled. Note 5: Pins G6 and RESET are designed with a high voltage input network. 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 750 (typical). These two pins will not latch up. The voltage at the pins must be limited to < 14V. Note 6: The Resistor values are for R/C only.
AC Electrical Characteristics COP94x
0°C TA +70°C unless otherwise specified Parameter Instruction Cycle Time (tC) Crystal/Resonator R/C Oscillator VCC Rise Time when Using Brown Out Frequency at Brown Out Reset CKI Frequency for Modulator Output CKI Clock Duty Cycle (Note 7) Rise Time (Note 7) Fall Time (Note 7) Inputs tSetup tHold Output Propagation Delay tPD1, tPD0 SO, SK All Others Input Pulse Width Interrupt Input High Time Interrupt Input Low Time Timer Input High Time Timer Input Low Time
5
Condition 4.5V VCC < 6.0V 2.5V VCC < 4.5V 4.5V VCC < 6.0V 2.5V VCC
Min 1 2.5 2 5 50
Typ
Max DC DC DC DC 4 4
Units µs µs µs µs µs MHz MHz % ns ns ns ns ns ns
< 4.5V
fr = Max fr = 10 MHz ext. clock fr = 10 MHz ext. clock 4.5V VCC < 6.0 2.5V VCC < 4.5 4.5V VCC < 6.0 2.5V VCC < 4.5 RL = 2.2k, CL = 100 pF 4.5V VCC < 6.0 2.5V VCC < 4.5 4.5V VCC < 6.0 2.5V VCC < 4.5
40
60 12 8
200 500 60 150
0.7 1.75 1 5 1 1 1 1 1
µs µs µs µs tC tC tC tC tC
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