Ordering number : EN5996
LC662104A, 662106A, 662108A
Four-Bit Single-Chip Microcontrollers
with 4, 6, and 8 KB of On-Chip ROM
The LC662104A, LC662106A, and LC662108A are 4-bit
CMOS microcontrollers that integrate on a single chip all
the functions required in a special-purpose telephone
controller, including ROM, RAM, I/O ports, a serial
interface, a DTMF generator, timers, and interrupt
functions. These microcontrollers are available in a 30-pin
Features and Functions
• On-chip ROM capacities of 4, 6, and 8 kilobytes, and an
on-chip RAM capacity of 384 × 4 bits.
• Fully supports the LC66000 Series common instruction
set (128 instructions). (The special-purpose instructions
for TM1 and SI/01 are disabled.)
• I/O ports: 24 pins
• DTMF generator
This microcontroller incorporates a circuit that can
generate two sine wave outputs, DTMF output.
• 8-bit serial interface: one circuit
• Instruction cycle time: 0.95 to 10 µs (at 3.0 to 5.5 V)
• Powerful timer functions and prescalers
— Time limit timer, event counter, pulse width
measurement, and square wave output using a 12-bit
— Time base function using a 12-bit prescaler.
• Powerful interrupt system with 6 interrupt factors and 6
interrupt vector locations.
— External interrupts: 3 factors/3 vector locations
— Internal interrupts: 3 factors/3 vector locations
• Flexible I/O functions
Selectable options include 20-mA drive outputs, pull-up
and open drain circuits.
• Optional runaway detection function (watchdog timer)
• 8-bit I/O functions
• Power saving functions using halt and hold modes.
• Packages: DIP30SD, MFP30S
• Evaluation ICs: LC665099 (evaluation chip) + EVA86K
LC66E2108(on-chip EPROM microcontroller)
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft’s
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
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