LC87F7032A Datasheet, PDF (2/21 Pages) Sanyo Semicon Device – CMOS IC FROM 32K byte, RAM 1024 byte on-chip 8-bit 1-chip Microcontroller

LC87F7032A
„Minimum Bus Cycle Time
• 250ns (4MHz)
Note: Bus cycle time indicates the speed to read ROM.
„Minimum Instruction Cycle Time (tCYC)
• 750ns (4MHz)
„Ports
• Input/output ports
Data direction programmable for each bit individually 12 (P1n, P70 to P73)
Data direction programmable in nibble units
8 (P0n)
(When N-channel open drain output is selected, data can be input in bit units.)
Other function
3 (DBGP0, DBGP1, DBGP2)
• PWM input/output port1 (PWM)
• LCD ports
Segment output
24 (S00 to S23)
Common output
4 (COM0 to COM3)
Bias terminals for LCD driver
5 (V1 to V3, CUP1, CUP2)
Other functions
Input/output ports
8 (PCn)
• Oscillator pins
4 (CF1, CF2, XT1, XT2)
• Reset pin
1 (RES)
• Power supply
4 (VSS1 to 2,VDD1 to 2)
1 (VDC)
„LCD Controller
• Seven display modes are available
• Duty 1/3duty, 1/4duty
• Bias 1/2bias, 1/3bias
• Segment output can be switched to general purpose input/output ports.
„Timers
• Timer 0: 16-bit timer/counter with capture register
Mode 0: 2 channel 8-bit timer with programmable 8 bit prescaler and 8 bit capture register
Mode 1: 8 bit timer with 8 bit programmable prescaler and 8 bit capture register + 8 bit counter with
8-bit capture register
Mode 2: 16 bit timer with 8 bit programmable prescaler and 16 bit capture register
Mode 3: 16 bit counter with 16 bit capture register
• Timer1: PWM/16 bit timer/counter with toggle output function
Mode 0: 2 channel 8 bit timer/counter (with toggle output)
Mode 1: 2 channel 8 bit PWM
Mode 2: 16 bit timer/counter (with toggle output) toggle output from lower 8 bits is also possible.
Mode 3: 16 bit timer (with toggle output) lower order 8 bits can be used as PWM.
• Timer4: 8-bit timer with 6-bit prescaler
• Timer5: 8-bit timer with 6-bit prescaler
• Timer6: 8-bit timer with 6-bit prescaler (with toggle output)
• Timer7: 8-bit timer with 6-bit prescaler (with toggle output)
• Base Timer
1) The clock signal can be selected from any of the following:
Sub-clock (32.768kHz crystal oscillator), system clock, and prescaler output from timer 0
2) Interrupts of five different time intervals are possible.
No.A0653-2/21