COP87L84RG Datasheet, PDF (1/40 Pages) National Semiconductor (TI) – 8-Bit One-Time Programmable (OTP) Microcontroller with 32 Kbytes of Program Memory

PRELIMINARY
August 1996
COP87L84RG
8-Bit One-Time Programmable (OTP) Microcontroller
with 32 Kbytes of Program Memory
General Description
The COP87L84RG is a member of the COP8^TM OTP micro-
controller family It is pin and software compatible to the
mask ROM COP888EG product family
(Continued)
Key Features
Y _{Full duplex UART}
Y _{Three 16-bit timers each with two 16-bit registers}
supporting
Processor independent PWM mode
External event counter mode
Input capture mode
Y _{32 kbytes on-board EPROM with security feature}
Note Mask ROMed devices with equivalent on-chip features and pro-
gram memory sizes of 4k and 8k are available (see Table I)
Y _{512 bytes on-board RAM}
Additional Peripheral Features
Y _{Idle timer}
Y _{Multi-Input Wake Up (MIWU) with optional interrupts (8)}
Y _{One analog comparator}
Y _WATCHDOGTM _{and clock monitor logic}
Y _{MICROWIRE PLUS}TM _{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 in-
put
Y _{Schmitt trigger inputs on ports G and L}
Y _Packages
28 DIP or SO each with 24 I O pins
CPU Instruction Set Features
Y _{1 ms instruction cycle time}
Y _{Fourteen multi-source vectored interrupts servicing}
External interrupt
Idle timer T0
Two timers (each with 2 interrupts)
MICROWIRE PLUS
Multi-Input Wake Up
Software trap
UART (2)
Default VIS (default interrupt)
Y _{Versatile instruction set with true bit manipulation}
Y _{8-bit Stack Pointer SP (stack in RAM)}
Y _{Two 8-bit register indirect data memory pointers}
(B and X)
Fully Static CMOS
Y _{Two power saving modes HALT and IDLE}
Y _{Single supply operation 2 7V – 5 5V}
Y _{Temperature range} b_{40 C to} a_{85 C}
Development Support
Y _{Emulation device for the COP884EG}
Y _{Real time emulation and full program debug offered by}
MetaLink Development Systems
Block Diagram
FIGURE 1 Block Diagram
TRI-STATE is a registered trademark of National Semiconductor Corporation
COP8TM MICROWIRETM MICROWIRE PLUSTM and WATCHDOGTM are trademarks of National Semiconductor Corporation
iceMASTERTM is a trademark of MetaLink Corporation
C1996 National Semiconductor Corporation TL DD12872
RRD-B30M96 Printed in U S A
TL DD12872 – 1
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