LC877816A_08 Datasheet, PDF (2/21 Pages) Sanyo Semicon Device – 8-bit 1-chip Microcontroller

LC877816A/12A/08A
„Minimum Bus Cycle Time
• 250ns (4MHz)
Note: The bus cycle time indicates ROM read time.
„Minimum Instruction Cycle Time (tCYC)
• 750ns (4MHz)
„Power Save Mode
• Power save mode is available, when system clock is RC oscillation or crystal oscillation.
„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.)
• 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.
• Segment output (S16 to S23) can be switched to general purpose input/output ports.
• Duty: 1/3duty, 1/4duty
• Bias: 1/2bias, 1/3bias
• LCD power
1) 1/3bias V1: 1.2V to 1.8V
V2: 2.4V to 3.6V
V3: 3.6V to 5.4V
2) 1/2bias V1: 1.2V to 1.8V
V2: 2.4V to 3.6V
V3: 2.4V to 3.6V
(connect V2 and V3)
„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
• Timer 1: 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.
• Timer 4: 8-bit timer with 6-bit prescaler
• Timer 5: 8-bit timer with 6-bit prescaler
• Timer 6: 8-bit timer with 6-bit prescaler (with toggle output)
• Timer 7: 8-bit timer with 6-bit prescaler (with toggle output)
Continued on next page.
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