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D75237GJ Schematic ( PDF Datasheet ) - NEC

Teilenummer D75237GJ
Beschreibung UPD75237GJ
Hersteller NEC
Logo NEC Logo 




Gesamt 30 Seiten
D75237GJ Datasheet, Funktion
www.DataSheet4U.com
DATA SHEET
MOS INTEGRATED CIRCUIT
µPD75237
4-BIT SINGLE-CHIP MICROCOMPUTER
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.
Document No. IC-2807A
(O. D. No. IC-8009A)
Date Published March 1993 P
Printed in Japan
The information in this document is subject to change without notice.
The mark 5 shows major revised points.
© NEC Corporation 1991






D75237GJ Datasheet, Funktion
µPD75237
www.D7at.aSRheEeStE4UT.FcoUmNCTIONS ............................................................................................................................... 147
8. INSTRUCTION SET ................................................................................................................................ 150
8.1 CHARACTERISTIC INSTRUCTIONS OF µPD75237 ..................................................................................... 150
8.2 INSTRUCTION SET AND OPERATION ......................................................................................................... 153
8.3 OPERATION CODES ....................................................................................................................................... 162
9. MASK OPTION SELECTION ................................................................................................................. 168
10. APPLICATION BLOCK DIAGRAM ........................................................................................................ 169
11. ELECTRICAL SPECIFICATIONS ........................................................................................................... 170
5 12. CHARACTERISTIC CURVES (REFERENCE VALUES) ........................................................................ 183
13. PACKAGE INFORMATION ................................................................................................................... 185
14. RECOMMEDED SOLDERING CONDITIONS ....................................................................................... 186
APPENDIX A. LIST OF µPD75238 SERIES PRODUCT FUNCTIONS..................................................... 187
APPENDIX B. DEVELOPMENT TOOLS ................................................................................................... 188
6

6 Page









D75237GJ pdf, datenblatt
µPD75237
www.D1a.t3aShPeIeNt4INUP.cUoTm/OUTPUT CIRCUIT LIST (2/4)
TYPE E-C
P.U.R
enable
data
output
disable
Type D
VDD
P.U.R
P-ch
IN/OUT
Type A
P.U.R:Pull-Up Resistor
TYPE F
data
output
disable
Type D
IN/OUT
Type B
TYPE F-B
output
disable
(P-ch)
data
output
disable
output
disable
(N-ch)
P.U.R
enable
VDD
P.U.R
P-ch
VDD
P-ch
IN/OUT
N-ch
Type B
P.U.R:Pull-Up Resistor
TYPE F-C
VDD
P.U.R
enable
P.U.R
P-ch
data
output
disable
Type D
IN/OUT
Input/Output Circuit Consisting of Type D
Push-Pull Output and Type B Schmitt Trig-
ger Input
TYPE F-A
P.U.R
enable
data
output
disable
Type D
VDD
P.U.R
P-ch
IN/OUT
Type B
P.U.R:Pull-Up Resistor
Type B
P.U.R:Pull-Up Resistor
TYPE I-C
VDD
VDD
data
P-ch
P-ch
OUT
N-ch
P.D.R
(Mask Option)
VLOAD
P.D.R:Pull-Down Resistor
12

12 Page





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