LC87F7CC8A Datasheet, PDF (4/21 Pages) Sanyo Semicon Device – FROM 128K byte, RAM 4096 byte on-chip 8-bit 1-chip Microcontroller

LC87F7CC8A
„High-speed Multiplication/Division Instructions
• 16 bits × 8 bits
(5 tCYC execution time)
• 24 bits × 16 bits (12 tCYC execution time)
• 16 bits ÷ 8 bits
(8 tCYC execution time)
• 24 bits ÷ 16 bits (12 tCYC execution time)
„Oscillation Circuits
• On-chip RC oscillation for system clock use.
• CF oscillation for system clock use. (Rf built in, Rd external)
• Crystal oscillation low speed system clock use. (Rf built in, Rd external)
• On-chip frequency variable RC oscillation circuit for system clock use.
„System Clock Divider Function
• Low power consumption operation is available
• Minimum instruction cycle time (300ns, 600ns, 1.2µs, 2.4µs, 4.8µs, 9.6µs, 19.2µs, 38.4µs, 76.8µs can be switched
by program (when using 10MHz main clock)
„Standby Function
• HALT mode
HALT mode is used to reduce power consumption. During the HALT mode, program execution is stopped but
peripheral circuits keep operating (some parts of serial transfer operation stop).
1) Oscillation circuits are not stopped automatically.
2) Released by the system reset or interrupts.
• HOLD mode
HOLD mode is used to reduce power consumption. Program execution and peripheral circuits are stopped.
1) CF, RC, X’tal and multi-frequency RC oscillation circuits stop automatically.
2) Released by any of the following conditions.
(1) Low level input to the reset pin
(2) Specified level input to one of INT0, INT1, and INT2
(3) Port 0 interrupt
• X’tal HOLD made
X’tal HOLD mode is used to reduce power consumption. Program execution is stopped.
All peripheral circuits except the base timer are stopped.
1) CF, RC and multi-frequency RC oscillation circuits stop automatically.
2) Crystal oscillator operation is kept in its state at HOLD mode inception.
3) Released by any of the following conditions
(1) Low level input to the reset pin
(2) Specified level input to one of INT0, INT1, and INT2
(3) Port 0 interrupt
(4) Base-timer interrupt
„Package Form
• QFP80 (14 × 14):
• TQFP80J (12 × 12):
Lead-free type
Lead-free type
„Development Tools
• Evaluation chip: LC87EV690
• Emulator:
EVA62S + ECB876600D + SUB877100 + POD80QFP(14 × 14) or POD80SQFP
ICE-B877300 + SUB877100 + POD80QFP(14 × 14) or POD80SQFP
• Flash ROM write adapter: W87F71256QF or W87F71256SQ
„Same Package and Pin Assignment as Mask ROM Version.
1) LC877C00 series options can be set by using flash ROM data. Thus the board used for mass production can be
used for debugging and evaluation without modifications.
2) If the program for the mask ROM version is used, the usable ROM/RAM capacity is the same as the mask ROM
version.
No.A0147-4/21