LC587404A/06A/08A
• LC587408A ( 8192 x 16-bit)
• LC587406A ( 6144 x 16-bit)
• LC587404A ( 4096 x 16-bit)
2. RAM
• LC587408A ( 512 x 4-bit)
• LC587406A ( 512 x 4-bit)
• LC587404A ( 512 x 4-bit)
3. Instruction Cycle Time
Instructions (excluding TABLE-Reference instruction) executes their transactions with one cycle.
Cycle Time
1 µs
4 µs
10 µs
122 µs
Power Voltage
4.5-5.5V
2.5-5.5V
2.5-5.5V
2.0-5.5V
System Clock Oscillation
CF (Ceramic) Oscillation
CF (Ceramic) Oscillation
CF (Ceramic) Oscillation
X’tal (christal) Oscillation
Oscillation Frequency
4MHz
1MHz
400kHz
32.768kHz
4. Ports
INPUT-Only Pin
• Port S ( 4 pins)
• INT pin ( 1 pin)
IN/OUT pin
• Port K (4 pins) Output type is fixed at CMOS
• Port M (4 pins) Output type can be programmed at CMOS or Pch with every port.
(M4 pin is set as the signal input pin when Timer 2 is in the event counter mode)
• Port SO (4 pins) Output type can be programmed at CMOS or Nch with every port.
(Pins for SO1, SO2, SO3 are shared with the serial interface.2-pin serial possible)
• Port P (4 pins) Output type can be programmed at CMOS or Pch with every port.
OUTPUT-Only Pin
• Port N (4 pins) N3 pin is shared with the remote control carrier outputs.
N4 is shared with the alarm output too.
LCD Driver pin
• Common pin (4 pins)
• Segment Pin (23 pins)
Every segment pin has the segment memory used only to store the output data.The output format can be
changed from the LCD driver output format to the general output formats (CMOS, Pch, Nch) by program.
2/17