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OM5232 Datasheet(PDF) 1 Page - NXP Semiconductors |
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OM5232 Datasheet(HTML) 1 Page - NXP Semiconductors |
1 / 11 page Philips Semiconductors Product specification OM5232 CMOS single-chip 8-bit microcontroller 1 December 1994 DESCRIPTION The OM5232 Single-Chip 8-Bit Microcontroller is manufactured in an advanced CMOS process and is a derivative of the 80C51 microcontroller family. The OM5232 has the same instruction set as the 80C51. See also: – OM5202 — ROMless version – OM5234 — 16K bytes mask programmable ROM – OM5238 — 32K bytes mask programmable ROM This device provides architectural enhancements that make it applicable in a variety of applications for general control systems. The OM5232 contains a non-volatile 8k × 8 read-only program memory, 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, UART and on-chip oscillator and timing circuits. For systems that require extra capability, the OM5232 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 1.5µs. Multiply and divide instructions require 3 µs. FEATURES • 80C51 central processing unit • 8k × 8 ROM, 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 • Two open drain I/O’s (P1.6, P1.7) • Full-duplex UART facilities • Power control modes – Idle mode – Power-down mode • ROM code protection • Extended frequency range: 1.2 to 16 MHz • Operating ambient temperature range: 0 to +70°C 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 P1.6 RST RxD/P3.0 TxD/P3.1 INT0/P3.2 INT1/P3.3 T0/P3.4 T1/P3.5 P1.7 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 EA P0.7/AD7 P0.6/AD6 P0.5/AD5 P0.4/AD4 P0.3/AD3 P0.2/AD2 P0.1/AD1 P0.0/AD0 VDD DIP SEE PAGE 2 FOR QFP PIN FUNCTIONS. QFP 44 34 1 11 33 23 12 22 WR/P3.6 (SOT307–2) PART NUMBER SELECTION PHILIPS PART ORDER NUMBER PART MARKING PACKAGE NUMBER TEMPERATURE RANGE °C, PACKAGE FREQUENCY MHz OM5232/FBP/xxx 1) SOT129 0 to +70, Plastic Dual In–line Package, 40 leads 1.2 to 16 OM5232/FBB/xxx 1) SOT307–2 0 to +70, Plastic Quad Flat Pack, 44 leads 1.2 to 16 NOTE: 1. xxx denotes the ROM code number. EQUIVALENT TYPES Details are as specified by the data sheet for the equivalent type: OM5202 = P80C652 without I2C function. OM5232 = P83C652 without I2C function. OM5234 = P83C654 without I2C function. OM5238 = P83C528 without I2C function. |
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