NEC PD75P308 user manual Description, Features, Ordering Information, Quality Grade

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DATA SHEET

MOS INTEGRATED CIRCUIT

μPD75P308

4-BIT SINGLE-CHIP MICROCOMPUTER

DESCRIPTION

The μPD75P308 is a model of the μPD75308 equipped with a one-time PROM or EPROM instead of an internal mask ROM.

Two types are available as the μPD75P308. The one-time PROM type is ideal for production of a small quantity of many different types of application systems as data can only be written once to the one-time PROM of this type. Programs can be written and rewritten to the built-in EPROM type making it ideal for system evaluation.

Detailed functions are described in the followig user's manual. Be sure to read it for designing. μPD75308 User's Manual: IEM-5016

FEATURES

•μPD75308 compatible

•Memory capacity

•Program memory (PROM): 8064 x 8 bits

•Data memory (RAM): 512 x 4 bits

•Can be connected to a pull-up resistor through software: Ports 0-3, 6, 7

•Open-drain input/output: Ports 4 and 5

•Single power source: 5V ± 5%

ORDERING INFORMATION

Part Number

Package

Internal ROM

 

 

 

μPD75P308GF-3B9

80-pin plastic QFP (14 x 20 mm)

One-time PROM

μPD75P308K

80-pin ceramic WQFN (LCC w/window)

EPROM

QUALITY GRADE

 

 

★

Part Number

Package

Quality Grade

 

 

 

 

μPD75P308GF-001-3B9

80-pin plastic QFP (14 x 20 mm)

Standard

μPD75P308K

80-pin Ceramic WQFN (LCC w/window)

Standard

Please refer to "Quality Grade on NEC Semiconductor Devices" (Document number IEI-1209) published by NEC Corporation to know the specification of quality grade on the devices and its recommended applications.

The function common to the one-time PROM and EPROM types of product is referred to as PROM throughout this document.

The information in this document is subject to change without notice.

Document No.

IC-2472B

 

 

(O. D. No.

IC-7208C)

The mark ★ shows major revised points.

 

Date Published November 1993 P

©

NEC Corporation 1989

Printed in Japan

 

 

 

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Contents Description FeaturesOrdering Information Quality GradeΜPD75P308 PIN ConfigurationBlock Diagram Contents PIN Functions Port PinsNON Port Pins PIN INPUT/OUTPUT Circuits Schmitt trigger input with hysteresis characteristicsInput buffer of Cmos standard Type F-B COMIN/OUT SEG Type M-C Connect capacitor between VDD and P00/INT4, Reset pinEprom Differences Between μPD75P308 and μPD75308+12.5 Write mode Verify mode Program inhibit mode Or H Program memory address 0 clear modeWriting and Verifying Prom Program Memory Operation Modes for WRITING/VERIFYING Program MemoryVDD+1 Program Memory Write ProcedureProgram Memory Read Procedure Erasure μPD75P308K only Absolute Maximum Ratings Ta = 25C Electrical SpecificationsTa = -10 to +70C, VDD = 5 to ±5 Main System Clock Oscillator Circuit CharacteristicsRecommended Oscillation Circuit Constants Main System Clock Ceramic Oscillator Ta = -10 to +70CCapacitance Ta = 25C, VDD = 0 DC Characteristics Ta = -10 to +70C, VDD = 5V ±5% Interrupt mode register IM0 AC Characteristics Ta = -10 to + 70C, VDD = 5V ±5%Operation Other Than Serial Transfer Serial Transfer Operation SBI Mode SCK external clock output master SBI Mode SCK internal clock output masterClock Timing AC Timing Test Point excluding X1 and XT1 inputsTI0 Timing TWO-LINE Serial I/O Mode Serial Transfer Timing THREE-LINE Serial I/O ModeCommand Signal Transfer Serial Transfer Timing BUS Release Signal TransferReset Input Timing Interrupt Input TimingTa = -10 to +70C Data Retention Timing releasing Stop mode by ResetBTM3 BTM2 BTM1 BTM0 Other than X1 or Program Memory Read Timing Program Memory Write TimingMD0 MD1 PIN Plastic QFP 14×20 Package DrawingsMillimeters Inches PIN Ceramic WqfnΜPD75P308GF-3B9 80-pin plastic QFP 14 x 20 mm Recommended Soldering ConditionsVPS Prom writing tools Appendix A. Development ToolsAppendix B. Related Documents Static Electricity ALL MOS Devices Processing of Unused Pins Cmos Devices onlyStatus Before Initialization ALL MOS Devices Fix the input level of Cmos devicesMemo
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