Features: ` Multi-Input Wake Up (on the 8-bit Port L)
` Brown out detector
` Analog comparator
` Modulator/timer (High speed PWM for IR transmission)
` 16-bit multi-function timer supporting
- PWM mode
- External event counter mode
- Input capture mode
` 1024 or 2048 bytes of ROM
` 64 or 128 bytes of RAM
` Quiet design (low radiated emissions)
` Integrated capacitor for the R/C oscillator for COP840CJ
I/O Features
` Software selectable I/O options (TRI-STATE® output,
push-pull output, weak pull-up input, high impedance input)
` High current outputs (8 pins)
` Packages
- 16 SO with 12 I/O pins for COP820CJ
- 20 DIP/SO with 16 I/O pins
- 28 DIP/SO with 24 I/O pins
` Schmitt trigger inputs on Port G
` MICROWIRE/PLUS serial I/O
CPU/Instruction Set Feature
` 1 s instruction cycle time
` Three multi-source vectored interrupts servicing
- External interrupt with selectable edge
- Timer interrupt
- Software interrupt
` 8-bit Stack Pointer (SP)-stack in RAM
` Two 8-bit register indirect data memory pointers (B, X)Pinout
SpecificationsIf Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Supply Voltage (VCC) ..............................................7.0V
Voltage at any Pin .........................−0.3V to VCC + 0.3V
Total Current into VCC pin (Source)..................... 80 mA
Total Current out of GND pin (sink)...................... 80 mA
Storage Temperature Range.............. −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.DescriptionThe COP820CJ/840CJ Family ROM based microcontrollers are integrated COP8™ Base core devices with 1k or 2k memory, an Analog comparator and Brownout detection. These single-chip CMOS devices COP942CJ are suited for lowerfunctionality applications where power and voltage fluctuations are a consideration. Pin and software compatible (no Brownout; different Vcc range) 4k/32k OTP versions are available (COP87LxxCJ/RJ Family) for pre-production, and for use with a range of COP8 software and hardware development tools.
COP942CJ Family features include an 8-bit memory mapped architecture, 10MHz CKI with 1us instruction cycle, one multifunction 16-bit timer/counter, MICROWIRE/PLUS™ serial I/O, one analog comparator, power saving HALT mode, MIWU, on-chip R/C oscillator capacitor (COP840CJ), high current outputs, software selectable I/O options, WATCHDOG ™ timer, modulator/timer, Brownout detector, Power on Reset, 2.5v-6.0v operation, and 16/20/28 pin packages. In this datasheet, the term COP820CJ refers to packages including the COP820CJ, COP822CJ, and COP823CJ; and COP840CJ refers to COP840CJ, COP842CJ, COP940CJ, and COP942CJ.
COP942CJ Data Sheet
