OrdeOrdering numbering numberr : ENA2046B : ENA2046B LC87FBG08A CMOS IC 8K-byte FROM and 256-byte RAM integrated LC87FBG08A Package Dimensions Package Dimensions unit : mm (typ) unit : mm (typ) 3366 3175C (build-to-order ) TOP VIEW SIDE VIEW BOTTOM VIEW 7.8 24 13 (0.125) 3.0 (C0.14) 1 12 24 0.65 0.15 2 1 (0.33) 0.19 0.22 SIDE VIEW (0.5) 0.4 SANYO : VCT24(3.0X3.0) SANYO : SSOP24(275mil) Minimum Bus Cycle 83.3ns (12MHz at V =2.7V to 5.5V, Ta=-40C to +85C) DD 100ns (10MHz at V =2.2V to 5.5V, Ta=-40C to +85C) DD 250ns ( 4MHz at V =1.8V to 5.5V, Ta=-40C to +85C) DD Note: The bus cycle time here refers to the ROM read speed. Minimum Instruction Cycle Time 250ns (12MHz at V =2.7V to 5.5V, Ta=-40C to +85C) DD 300ns (10MHz at V =2.2V to 5.5V, Ta=-40C to +85C) DD 750ns ( 4MHz at V =1.8V to 5.5V, Ta=-40C to +85C) DD Ports Normal withstand voltage I/O ports Ports I/O direction can be designated in 1-bit units 12 (P1n, P20, P21, P70, CF2/XT2) Ports I/O direction can be designated in 4-bit units 8 (P0n) Dedicated oscillator ports/input ports 1 (CF1/XT1) Reset pin 1 ( ) RES Power pins 2 (V 1, V 1) SS DD Timers Timer 0: 16-bit timer/counter with a capture register. Mode 0: 8-bit timer with an 8-bit programmable prescaler (with an 8-bit capture register) 2 channels Mode 1: 8-bit timer with an 8-bit programmable prescaler (with an 8-bit capture register) + 8-bit counter (with an 8-bit capture register) Mode 2: 16-bit timer with an 8-bit programmable prescaler (with a 16-bit capture register) Mode 3: 16-bit counter (with a 16-bit capture register) Timer 1: 16-bit timer/counter that supports PWM/toggle outputs Mode 0: 8-bit timer with an 8-bit prescaler (with toggle outputs) + 8-bit timer/ counter with an 8-bit prescaler (with toggle outputs) Mode 1: 8-bit PWM with an 8-bit prescaler 2 channels Mode 2: 16-bit timer/counter with an 8-bit prescaler (with toggle outputs) (toggle outputs also possible from the lower-order 8 bits) Mode 3: 16-bit timer with an 8-bit prescaler (with toggle outputs) (The lower-order 8 bits can be used as PWM) No.A2046-2/30 (1.3) 0.1 5.6 1.5max 7.6 0.5 (0.035) 3.0 0.8 0.4 (0.09)