rej05b0647_7542ap| Application Note
APPLICATION NOTE 7542 Group, 7531 Group
Differences between 7542 Group and 7531 Group
1. Difference between 7542 Group / 7531 Group
7542 Group M37542M2/M4-XXXSP/FP/GP/HP M37542M2T/M4T-XXXFP/GP M37542M2V/M4V-XXXFP/GP M37542F8SP/FP/GP M37542F8TFP/GP M375428VFP/GP MASK : 8K, 16K Flash : 32K PROM : 71 (including DIV and MUL instructions) 0.25 us ( 8MHz double-speed mode ) Initial value: 0016 (Port P0, P3: pull-up off) 18 sources, 16 vectors 8-bit x 2, 16-bit x 2 8-bit x 2 : Serial I/O1 (UART or Clock synchronous type) Bus collision detection Serial I/O2 (UART or Clock synchronous type) Ceramic resonator/Quartz-crystal oscillator/External RC oscillation/On-chip oscillator oscillation Available 7531 Group M37531M4/M4T-XXXSP/FP/GP M37531E4SP/FP/GP M37531M4V/E4T/E4V-XXXGP M37531M8-XXXSP/FP/GP M37531E8SP/FP MASK : 8K, 16K Flash : PROM : 8K, 16K 69 0.5 us ( 8MHz high-speed mode ) Initial value: FF16 (Port P0, P3: pull-up on) 32-pin version: 11 sources, 8 vectors (external 3 sources) 36-pin version: 12 sources, 8 vectors (external 4 sources) 8-bit x 3 8-bit x 2 : Serial I/O1 (UART) Serial I/O2 (Clock synchronous type) Ceramic resonator/Quartz-cryst
al oscillator/External RC oscillation/ On-chip oscillator only for power-on Not available
Applicable Product
ROM Type : ROM Size Basic Machine-Language instructions Instruction Execution Time (Shortest Instruction ) I/O Port Pull-up Control Register Interrupts Timer
Serial Interface
Clock generating circuit Oscillation stop detection function
REJ05B0647-0100
June 2005
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