System Block Diagram
No. 5997-4/17
LC662508A, 662512A, 662516A
Item
LC6650XB Series
LC6655XB Series LC6625XX Series
(Including the LC66599 evaluation chip)
System differences
65536 cycles 16384 cycles 16384 cycles
• Hardware wait time (number of
About 64 ms at 4 MHz (Tcyc = 1 µs) About 16 ms at 4 MHz (Tcyc = 1 µs) About 16 ms at 4 MHz (Tcyc = 1 µs)
cycles) when hold mode is cleared
• Value of timer 0 after a reset
(Including the value after hold mode Set to FF0. Set to FFC. Set to FFC.
is cleared)
• DTMF generator
None (Tools are handled with
None Yes
external devices.)
• Inverter array
None (Tools are handled with
None Yes
external devices.)
• Three-value inputs/comparator
Yes Yes None
inputs
• Three-state output from P31
None None Yes
and P32
• Using P0 to clear halt mode In 4-bit groups In 4-bit groups Can be specified for each bit.
For INT3, INT4, and INT5.
INT3, INT4, and INT5 can be used
• External extended interrupts (Tools are handled with external For INT3, INT4, and INT5.
with the internal functions.
devices.)
Shared with P90 (INT2)
• INT2 functions (Tools are handled with external Shared with P90 (INT2) Shared with P53 (INT2)
devices.)
Differences in main characteristics
• LC66506B/08B/12B/16B • 3.0 to 5.5 V/0.92 to 10 µs
• Operating power-supply voltage
4.0 to 6.0 V/0.92 to 10 µs • LC6655XA, 56XA
3.0 to 5.5 V/0.95 to 10 µs
and operating speed (cycle time)
• LC66E516/P516 2.2 to 5.5 V/3.92 to 10 µs
4.5 to 5.5 V/0.92 to 10 µs 3.0 to 5.5 V/1.96 to 10 µs
• Pull-up resistors P0, P1, P4, and P5: about 3 to 10 kΩ P0, P1, P4, and P5: about 3 to 10 kΩ P0, P1, P4, and P5: about 100 kΩ
• P2, P3, P6, P7, and PA: •P2, P3, P6, P7, and PA: P2, P3, P61, P63, and PA:
• Port voltage handling
15V handling 15V handling 15V voltage handling
• Others: Normal voltage • Others: Normal voltage Others: normal voltage
Differences between the LC665XX Series and the LC6625XX Series
• When DT, ML, and DP are used, only the SIO channel can be used for serial I/O.
• The INT3, INT4, and INT5 pins can be used with internal functions.