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UPD75237 Datasheet(PDF) 1 Page - NEC |
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UPD75237 Datasheet(HTML) 1 Page - NEC |
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1 / 191 page  4-BIT SINGLE-CHIP MICROCOMPUTER µPD75237 MOS INTEGRATED CIRCUIT DATA SHEET The information in this document is subject to change without notice. © NEC Corporation 1991 Document No. IC-2807A (O. D. No. IC-8009A) Date Published March 1993 P Printed in Japan The mark 5 shows major revised points. DESCRIPTION The µPD75237 is a microcomputer with a CPU capable of 1-, 4-, and 8-bit-wise data processing, a ROM, a RAM, I/O ports, a fluorescent display tube (FIP ®) controller/driver, A/D converters, a watch timer, a timer/pulse generator capable of outputting 14-bit PWM, a serial interface and a vectored interrupt function integrated on a single-chip. The µPD75237 has the more improved peripheral functions including the RAM capacity, FIP controller/driver display capabilities, I/O ports, A/D converter and serial interface than those of the µPD75217. The µPD75237 is most suited for advanced and popular VCR timer and tuner applications, single-chip configu- rations of system computers, advanced CD players and advanced microwave ovens. The µPD75P238 PROM product and various types of development tools (IE-75001-R, assemblers and others) are available for evaluation in system development or small-volume production. FEATURES q Built-in, large-capacity ROM and RAM • Program memory (ROM): 24K × 8 • Data memory (RAM): 1K × 4 q I/O port: 64 ports (except FIP dedicated pins) q Minimum instruction execution time: 0.67 µs (when operated at 6.0 MHz) q Instruction execution time varying function to achieve a wide range of power supply voltages q Built-in programmable FIP controller/driver • Number of segments: 9 to 24 • Number of digits: 9 to 16 q 8-bit A/D converter: 8 channels q Powerful timer/counter function: 5 channels q 8-bit serial interface: 2 channels q Interrupt function with importance attached to appli- cations q Product with built-in PROM: µPD75P238 ORDERING INFORMATION Ordering Code Package Quality Grade µPD75237GJ-×××-5BG 94-pin plastic QFP (20 × 20 mm) 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. |
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