PRODUCT PREVIEW
®
87C196LB
CHMOS 16-BIT MICROCONTROLLER
Automotive
■ 20 MHz operation†
■ Full-duplex serial I/O port with
dedicated baud-rate generator
■ 24 Kbytes of on-chip OTPROM
■ 768 bytes of on-chip register RAM
■ Register-to-register architecture
■ Enhanced full-duplex, synchronous
serial I/O port (SSIO)
■ Programmable 8- or 16-bit external bus
■ Peripheral transaction server (PTS)
with high-speed, microcoded interrupt
service routines
■ Optional clock doubler with
programmable clock output signal
■ SFR register that indicates the source
■ Integrated, industry-standard J1850
of the last reset
communication protocol
■ Design enhancements for EMI
■ Six-channel/10-bit A/D with sample and
reduction
hold
■ Oscillator failure detection circuitry
■ Watchdog timer (WDT)
■ High-speed event processor array
— Six capture/compare channels
— Two compare-only channels
— Two 16-bit software timers
■ –40° C to +125° C ambient temperature
■ 52-pin PLCC package
†
16 MHz standard; 20 MHz is speed premium
NOTE
This datasheet contains information on products in the design phase of development. The
specifications are subject to change without notice. Verify with your local Intel sales office
that you have the latest datasheet before finalizing a design.
The 87C196LB is a high-performance 16-bit microcontroller with integrated support for the J1850 communication
protocol. The 87C196LB is composed of
a high-speed core with the following peripherals: an
asynchronous/synchronous serial I/O port (8096 compatible) with a dedicated 16-bit baud-rate generator; an
additional synchronous serial I/O port with full duplex master/slave transceivers; a six-channel A/D converter with
sample and hold; a flexible timer/counter structure with prescaler, cascading, and quadrature capabilities; six
modularized, multiplexed high-speed I/O for capture and compare (called event processor array) with 200 ns
resolution and double buffered inputs; and a sophisticated prioritized interrupt structure with programmable
peripheral transaction server (PTS). The clock doubler circuitry and oscillator output signal enable a 4 MHz
resonator to achieve the same internal clock speed as a more costly 8 MHz resonator in previous applications.
This same circuitry can drive other devices where a separate resonator was required in the past. Another cost-
savings feature is the fact that the I/O ports are driven low at reset, avoiding the need for pull-up resistors.
Intel Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in an Intel product. No other circuit patent
licenses are implied. Information contained herein supersedes previously published specifications on these devices from Intel.
© INTEL CORPORATION, 1996
February 1996
Order Number: 272807-000
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