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P87CL54X2BDH Datasheet(PDF) 4 Page - NXP Semiconductors |
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P87CL54X2BDH Datasheet(HTML) 4 Page - NXP Semiconductors |
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4 / 47 page  Philips Semiconductors Product data P87CL52X2/54X2 80C51 8-bit microcontroller family 8K/16K OTP 256 bytes RAM ROMless low voltage (1.8 V to 3.3 V), low power, high speed (33 MHz) 2003 May 14 4 BLOCK DIAGRAM su01723 PSEN EA / VPP ALE/PROG RST XTAL1 XTAL2 VCC VSS PORT 0 DRIVERS PORT 2 DRIVERS RAM ADDR REGISTER RAM PORT 0 LATCH PORT 2 LATCH ROM/EPROM REGISTER B ACC STACK POINTER TMP2 TMP1 ALU TIMING AND CONTROL PD OSCILLATOR PSW PORT 1 LATCH PORT 3 LATCH PORT 1 DRIVERS PORT 3 DRIVERS PROGRAM ADDRESS REGISTER BUFFER PC INCRE- MENTER PROGRAM COUNTER DPTR’S MULTIPLE P1.0–P1.7 P3.0–P3.71 P0.0–P0.7 P2.0–P2.7 SFRs TIMERS 8 8 16 NOTE: 2. P3.2 and 3.5 absent in the TSSOP38 package. |
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