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S87C654-8F40 Datasheet(PDF) 2 Page - NXP Semiconductors |
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S87C654-8F40 Datasheet(HTML) 2 Page - NXP Semiconductors |
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2 / 28 page  Philips Semiconductors Product specification 87C654 CMOS single-chip 8-bit microcontroller 2 1996 Aug 16 853–1689 17192 DESCRIPTION The 87C654 Single-Chip 8-Bit Microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family. The 87C654 has the same instruction set as the 80C51. Two versions of the derivative exist: 83C654—16k bytes mask programmable ROM 87C654—EPROM version This device provides architectural enhancements that make it applicable in a variety of applications for general control systems. The 87C654 contains a non-volatile 16k × 8 EPROM, a volatile 256 × 8 read/write data memory, four 8-bit I/O ports, two 16-bit timer/event counters (identical to the timers of the 80C51), a multi-source, two-priority-level, nested interrupt structure, an I2C interface, UART and on-chip oscillator and timing circuits. For systems that require extra capability, the 87C654 can be expanded using standard TTL compatible memories and logic. The device also functions as an arithmetic processor having facilities for both binary and BCD arithmetic plus bit-handling capabilities. The instruction set consists of over 100 instructions: 49 one-byte, 45 two-byte and 17 three-byte. With a 16MHz crystal, 58% of the instructions are executed in 0.75 µs and 40% in 1.5 µs. Multiply and divide instructions require 3 µs. FEATURES • 80C51 central processing unit • 16k × 8 EPROM expandable externally to 64k bytes • 256 × 8 RAM, expandable externally to 64k bytes • Two standard 16-bit timer/counters • Four 8-bit I/O ports • I2C-bus serial I/O port with byte oriented master and slave functions • Full-duplex UART facilities • Power control modes – Idle mode – Power-down mode • Five package styles • Extended temperature range • OTP package available • Two speed ranges – 16MHz – 20MHz 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 P1.0 P1.1 P1.2 P1.3 P1.4 P1.5 SCL/P1.6 RST RxD/P3.0 TxD/P3.1 INT0/P3.2 INT1/P3.3 T0/P3.4 T1/P3.5 SDA/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 CERAMIC AND PLASTIC DUAL IN-LINE PACKAGE CERAMIC AND PLASTIC LEADED CHIP CARRIER 6 1 40 7 17 39 29 18 28 PLASTIC QUAD FLAT PACK 44 34 1 11 33 23 12 22 SU00259 |
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