FEATURES
Working voltage: 3.0V ~ 3.6V For L Version 4.5V ~ 5.5V For C Version General 8051/8052 family compatible 12 clocks per machine cycle 4/8 KB internal ROM memory 128/256 bytes data RAM 2/3 16 bit timers/counters Four 8-bit I/O ports Full duplex serial channel Bit operation instruction Page free jumps 8-bit unsigned division 8-bit unsigned multiply BCD arithmetic Direct addressing Indirect addressing Nested interrupt Two priority level interrupt A serial I/O port Power save modes: Idle mode and power down mode Code protection function One watch dog timer (WDT) Low EMI (inhibit ALE) DESCRIPTION
Ordering Information yywwv SM8051/8052ihhk yy: year, ww:month v: version identifier { , A, B, ...} i: process identifier {L=3.0V ~ 3.6V, C=4.5V ~ 5.5V} hh: working clock in MHz {25, 40} k: package type postfix {as below table} Postfix P J Q Package 40L PDIP 44L PLCC 44L QFP/TQFP Pin/Pad Configuration page 2 page 2 page 2 Dimension page 13 page 14 page 15/16 Taiwan 4F, No. 1 Creation Road 1,...