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LC877440A Fiches technique(PDF) 2 Page - Sanyo Semicon Device |
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LC877440A Fiches technique(HTML) 2 Page - Sanyo Semicon Device |
2 / 22 page LC877448A/40A/32A/24A No.7776-2/22 Features (1) Read-Only Memory (ROM) • 49152 × 8 bits (LC877448A) • 40960 × 8 bits (LC877440A) • 32768 × 8 bits (LC877432A) • 24576 × 8 bits (LC877424A) (2) Random Access Memory (RAM): 1536 × 9 bits (LC877448A, LC877440A, LC877432A, LC877424A) (3) Minimum Bus Cycle Time: 100 ns (10MHz) Note: The bus cycle time indicates ROM read time. (4) Minimum Instruction Cycle Time: 300 ns (10MHz) (5) Ports • Input / output ports Data direction programmable for each bit individually: 26 (P1n, P30 to P35, P70 to P73, P8n) Data direction programmable in nibble units: 8 (P0n) (When N-channel open drain output is selected, data can be input in bit units.) • Input ports: 2 (XT1, XT2) • LCD ports Segment output: 48 (S00 to S47) Common output: 4 (COM0 to COM3) Bias terminals for LCD driver: 3 (V1 to V3) Other functions Input / output ports: 48 (PAn, PBn, PCn, PDn, PEn, PFn) Input ports: 7 (PLn) • Oscillator pins: 2 (CF1, CF2) • Reset pin: 1 (RES) • Power supply: 6 (VSS1 to 3, VDD1 to 3) (6) LCD controller • Seven display modes are available (static, 1/2, 1/3, 1/4 duty × 1/2, 1/3 bias) • Segment output and common output can be switched to general purpose input / output ports. (7) Small signal detection (MIC signals etc) • Counts pulses with the level which is greater than a preset value • 2 bit counter (8) 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: 8 bit timer (with toggle output) + 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 • Timer 7: 8 bit timer with 6 bit prescaler Continued on next page. |
Numéro de pièce similaire - LC877440A |
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Description similaire - LC877440A |
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