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MSM64P155 Datasheet(PDF) 5 Page - OKI electronic componets |
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MSM64P155 Datasheet(HTML) 5 Page - OKI electronic componets |
5 / 29 page MSM64P155/64P155L ¡ Semiconductor 5/29 PIN DESCRIPTIONS Basic Functions — Power Supply Pin Digital supply voltage (0 V) Description Type Function Oscillation Test RESET 23 100 99 98 97 96 4 — — — — — — Digital positive power supply (1.5 V spec.) Bias output for LCD driver (3.0 V spec.) Digital positive power supply (3.0 V spec.) Bias output for LCD driver (1.5 V spec.) Bias output for LCD driver (+4.5 V) Pins for connecting a capacitor for generating LCD driving bias Positive power supply for writing programming data to PROM (+12.5 V) Clock oscillation pins: Either a crystal (32.768 kHz) and a capacitor (10 to 30 pF) are connected to these pins or a resistor (1 MW) is. 2 3 I O 30 29 28 I I I Input pins for test: These pins are internally pulled down to VSS. 1I System reset input pin : Setting this pin to "H" level puts this device into a reset state. Then, setting this pin to "L" level starts executing an instruction from address 000H. This pin is internally connected to VSS through a pull-down resistor. Symbol VSS VDD1 VDD2 VDD3 C1 C2 VPP OSC0 OSC1 TST1 TST2 TST3 RESET When this pin is set to "H" level, the 256 Hz and 4 Hz interrupts are enabled, and then the MSM64P155 can be used as an OTP version of the MSM64152A, MSM64153A, and MSM64158A. |
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