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P87C54EFBB Datasheet(PDF) 1 Page - NXP Semiconductors |
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P87C54EFBB Datasheet(HTML) 1 Page - NXP Semiconductors |
1 / 21 page Philips Semiconductors Preliminary specification 87C54/87C58 CMOS single-chip 8-bit microcontrollers 3-215 1996 Aug 16 DESCRIPTION The 87C54/87C58 Single-Chip 8-Bit Microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family. The 87C54/87C58 has the same instruction set as the 80C51. This device provides architectural enhancements that make it applicable in a variety of applications for general control systems. The 87C58 contains 32k × 8 EPROM memory, and the 87C54 contains 16k × 8 EPROM memory, a volatile 256 × 8 read/write data memory, four 8-bit I/O ports, three 16-bit timer/event counters, a multi-source, two-priority-level, nested interrupt structure, an enhanced UART and on-chip oscillator and timing circuits. For systems that require extra capability, the 87C54/87C58 can be expanded using standard TTL compatible memories and logic. Its added features make it an even more powerful microcontroller for applications that require pulse width modulation, high-speed I/O and up/down counting capabilities such as motor control. It also has a more versatile serial channel that facilitates multiprocessor communications. See 80C52/54/58 datasheet for ROM device specification. FEATURES • 80C51 central processing unit • 16k × 8 EPROM expandable externally to 64k bytes (87C54) • 16k × 8 EPROM (87C54) and 32k × 8 EPROM expandable externally to 64k bytes (87C58) – Improved Quick Pulse programming algorithm – Two level program security system – 32 byte encryption array • 256 × 8 RAM, expandable externally to 64k bytes • Three 16-bit timer/counters – T2 is an up/down counter • Four 8-bit I/O ports • Full-duplex enhanced UART – Framing error detection – Automatic address recognition • Power control modes – Idle mode – Power-down mode • Once (On Circuit Emulation) Mode • Five package styles • OTP package available • Programmable clock out • 6 interrupt sources • 2 level priority PIN CONFIGURATIONS 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 T2/P1.0 T2EX/P1.1 P1.2 P1.3 P1.4 P1.5 P1.6 RST RxD/P3.0 TxD/P3.1 INT0/P3.2 INT1/P3.3 T0/P3.4 T1/P3.5 P1.7 WR/P3.6 RD/P3.7 XTAL2 XTAL1 VSS P2.0/A8 P2.1/A9 P2.2/A10 P2.3/A11 P2.4/A12 P2.5/A13 P2.6/A14 P2.7/A15 PSEN ALE/PROG EA/VPP P0.7/AD7 P0.6/AD6 P0.5/AD5 P0.4/AD4 P0.3/AD3 P0.2/AD2 P0.1/AD1 P0.0/AD0 VCC DUAL IN-LINE PACKAGE SU00748 |
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