OM5284 Philips 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 ...