OM5284 NXP Semiconductors, OM5284 Datasheet
OM5284
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OM5284 Summary of contents
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... OM5234/OM5284 CMOS single-chip 8-bit microcontrollers Preliminary specification Philips Semiconductors INTEGRATED CIRCUITS 1996 Nov 01 ...
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... DESCRIPTION The OM5234 and OM5284 single-chip 8-bit microcontrollers are manufactured in an advanced CMOS process and are derivatives of the 80C51 microcontroller family. The OM5234 and OM5284 are pre-programmed devices for specific applications. Unless specifically stated otherwise, all references to OM5234 apply equally to OM5284. ...
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... PLASTIC QUAD FLAT PACK SU00802 PIN FUNCTIONS Pin Function 1 P1.5 2 P1.6 3 P1.7 4 RST 5 P3.0/RxD 6 V SS4 7 P3.1/TxD 8 P3.2/INT0 9 P3.3/INT1 10 P3.4/T0 11 P3.5/T1 12 P3.6/WR 13 P3.7/RD 14 XTAL2 15 XTAL1 3 Preliminary specification OM5234/OM5284 PLCC Pin Function Pin Function 16 P3.4/T0 31 P2.7/A15 17 P3.5/T1 32 PSEN 18 P3.6/WR 33 ALE 19 P3.7/RD 34 NC* 20 XTAL2 XTAL1 36 P0 ...
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... Electrical Characteristics Alternate functions include: IL Bidirectional I/O with internal pull-ups (OM5284), and open drain for (OM5234). Bidirectional I/O with internal pull-ups (OM5284), and open drain for (OM5234). Port 2: Port 8-bit bidirectional I/O port with internal pull-ups. Port 2 pins that have 1s written to them are pulled high by the internal pull-ups and can be used as inputs. As inputs, port 2 pins that are externally being pulled low will source current because of the internal pull-ups ...
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... IN See note 5 0.45V < V < 4. =5. RST = must be externally limited as follows: Maximum 71mA total for all output pins ALE and PSEN to momentarily fall below the 0. Preliminary specification OM5234/OM5284 LIMITS MIN. MAX. UNIT –0.5 0.2V –0 –0.5 0.2V –0 –0.5 0. 0.2V +0 ...
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... CC 0.2V –0.1 CC –0.5 for a logic ‘1’ and 0.45V for a logic ‘0’. CC min for a logic ‘1’ and V max for a logic ‘0’ Figure 2. AC Testing Input/Output 6 Preliminary specification OM5234/OM5284 (1) ( (MHz) XTAL1 = V DD DDmax = V DD DDmax SU00801 ...
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... Philips Semiconductors CMOS single-chip 8-bit microcontrollers PLCC44: plastic leaded chip carrier; 44 leads 1996 Nov 01 OM5234/OM5284 7 Preliminary specification SOT187-2 ...
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... Philips Semiconductors CMOS single-chip 8-bit microcontrollers DIP40: plastic dual in-line package; 40 leads (600 mil) 1996 Nov 01 OM5234/OM5284 8 Preliminary specification SOT129-1 ...
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... Philips Semiconductors CMOS single-chip 8-bit microcontrollers QFP44: plastic quad flat package; 44 leads (lead length 1.3 mm); body 1.75 mm 1996 Nov 01 OM5234/OM5284 9 Preliminary specification SOT307-2 ...
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... Philips Semiconductors and Philips Electronics North America Corporation register eligible circuits under the Semiconductor Chip Protection Act. © Copyright Philips Electronics North America Corporation 1996 All rights reserved. Printed in U.S.A. 10 Preliminary specification OM5234/OM5284 ...