Document Outline
- COVER
- FEATURES
- APPLICATIONS
- ORDERING INFORMATION
- Difference between uPD75430 x and uPD75430 x (A)
- Functional Outline
- 1. PIN CONFIGURATION (Top View)
- 2. BLOCK DIAGRAM
- 3. PIN FUNCTION
- 3.1 Port Pins
- 3.2 Non-port Pins
- 3.3 Pin Input/Output Circuits
- 3.4 Recommended Connections for Unused Pins
- 4. SWITCHING FUNCTION BETWEEN Mk I MODE AND Mk II MODE
- 4.1 Difference between Mk I and Mk II Modes
- 4.2 Setting Method of Stack Bank Select Register (SBS)
- 5. MEMORY CONFIGURATION
- 6. PERIPHERAL HARDWARE FUNCTIONS
- 6.1 Digital Input Ports
- 6.2 Clock Generator
- 6.3 Clock Output Circuit
- 6.4 Basic Interval Timer/Watchdog Timer
- 6.5 Timer/Event Counter
- 6.6 Serial Interface
- 6.7 Bit Sequential Buffer
- 7. INTERRUPT FUNCTION AND TEST FUNCTION
- 8. STANDBY FUNCTION
- 9. RESET FUNCTION
- 10. MASK OPTION
- 11. INSTRUCTION SETS
- 12. ELECTRICAL SPECIFICATIONS
- 13. CHARACTERISTICS CURVES (REFERENCE VALUES)
- 14. PACKAGE DRAWING
- 15. RECOMMENDED SOLDERING CONDITIONS
- APPENDIX A. COMPARISON OF FUNCTIONS AMONG uPD750004, 754304, AND 75P4308
- APPENDIX B. DEVELOPMENT TOOLS
- APPENDIX C. RELATED DOCUMENTS
4-BIT SINGLE-CHIP MICROCONTROLLER
The
PD754304 is one of the "75XL Series" 4-bit single-chip microcontrollers with data processing capability
comparable to that of 8-bit microcontrollers. The
PD754303(A) has a higher reliability than the
PD754304.
The microcontrollers in the 75XL Series have expanded CPU functions than those of the 75X Series and can
operate at a voltage of as low as 1.8 V; therefore, they are ideal for battery-driven application systems.
As the one-time PROM version of the
PD754304, the
PD75P4308 is ideal for evaluation of a system under
development or for small-scale production of application systems.
Detailed information about functions can be found in the following document. Be sure to read the following
document before designing.
PD754304 User's Manual: U10123E
FEATURES
Low-voltage operation: V
DD
= 1.8 to 5.5 V
Internal memory
Program memory (ROM):
2048
8 bits (
PD754302, 754302(A))
4096
8 bits (
PD754304, 754304(A))
Data memory (RAM): 256
4 bits
APPLICATIONS
PD754302, 754302(A)
Cordless telephones, TVs, VCRs, audio systems, household appliances, office machines, etc.
PD754304, 754304(A)
Automotive appliance, etc.
The
PD754302 and 754304 differ from the
PD754302(A) and 754304(A) only in terms of their quality grade.
Unless otherwise specified, the
PD754304 is treated as a representative model in this Data Sheet.
For the models other than the
PD754304,
PD754304 can be read as the other model name.
If different descriptions are made for the
PD754302 and 754304, the (A) models correspond as follows:
PD754302
PD754302(A),
PD754304
PD754304(A)
MOS INTEGRATED CIRCUIT
The information in this document is subject to change without notice.
Document No. U10797EJ2V0DS00 (2nd edition)
Date Published November 1996 N
Printed in Japan
PD754302,754304,754302(A),754304(A)
Variable instruction execution time effective for high-
speed operation and power saving
0.95, 1.91, 3.81, or 15.3
s (at 4.19 MHz)
0.67, 1.33, 2.67, or 10.7
s (at 6.0 MHz)
Internal serial interface (1 channel)
Powerful timer function (3 channels)
Inherits instruction set of existing 75X Series for easy
replacement
The mark shows major revised points.
1996
DATA SHEET
PD754302, 754304, 754302(A), 754304(A)
2
ORDERING INFORMATION
Parts Number
Package
Quality Grade
PD754302GS-
36-pin plastic shrink SOP (300 mil, 0.8 mm pitch)
Standard
PD754304GS-
36-pin plastic shrink SOP (300 mil, 0.8 mm pitch)
Standard
PD754302GS(A)-
36-pin plastic shrink SOP (300 mil, 0.8 mm pitch)
Special
PD754304GS(A)-
36-pin plastic shrink SOP (300 mil, 0.8 mm pitch)
Special
Remark
indicates a ROM code number.
Difference between
PD75430
and
PD75430
(A)
Parts Number
PD754302
PD754302(A)
Item
PD754304
PD754304(A)
Quality grade
Standard
Special
Please refer to "Quality Grades on NEC Semiconductor Devices" (Document No. C11531E) published by
NEC Corporation to know the specification of quality grade on the devices and its recommended applications.
PD754302, 754304, 754302(A), 754304(A)
3
Functional Outline
Parameter
Function
Instruction execution time
0.95, 1.91, 3.81, 15.3
s (@ 4.19 MHz with system clock)
0.67, 1.33, 2.67, 10.7
s (@ 6.0 MHz with system clock)
On-chip memory
ROM
2048
8 bits (
PD754302)
4096
8 bits (
PD754304)
RAM
256
4 bits
General-purpose register
4-bit operation: 8
4 banks
8-bit operation: 4
4 banks
Input/
CMOS input
8
On-chip pull-up resistors can be specified by software: 7
output
CMOS input/output
18
On-chip pull-up resistors can be specified by software: 18
port
N-ch open-drain
4
13 V withstand voltage. On-chip pull-up resistors can be specified by
input/output pins
mask option.
Total
30
Timer
3 channels
8-bit timer/event counter: 2 channels (16-bit timer/event counter)
Basic interval timer/watchdog timer: 1 channel
Serial interface
3-wire serial I/O mode ... MSB or LSB can be selected for transferring top bit
2-wire serial I/O mode
Bit sequential buffer
16 bits
Clock output (PCL)
, 524, 262, 65.5 kHz (@ 4.19 MHz with system clock)
, 750, 375, 93.8 kHz (@ 6.0 MHz with system clock)
Vectored interrupts
External: 3, Internal: 4
Test input
External: 1
System clock oscillator
Ceramic or crystal oscillator
Standby function
STOP/HALT mode
Operating ambient
T
A
= 40 to +85 C
temperature
Power supply voltage
V
DD
= 1.8 to 5.5 V
Package
36-pin plastic shrink SOP (300 mil, 0.8-mm pitch)
PD754302, 754304, 754302(A), 754304(A)
4
CONTENTS
1.
PIN CONFIGURATION (Top View) 6
2.
BLOCK DIAGRAM 8
3.
PIN FUNCTION 9
3.1
Port Pins 9
3.2
Non-port Pins 10
3.3
Pin Input/Output Circuits 11
3.4
Recommended Connections for Unused Pins 13
4.
SWITCHING FUNCTION BETWEEN Mk I MODE AND Mk II MODE 14
4.1
Difference between Mk I and Mk II Modes 14
4.2
Setting Method of Stack Bank Select Register (SBS) 15
5.
MEMORY CONFIGURATION 16
6.
PERIPHERAL HARDWARE FUNCTIONS 20
6.1
Digital Input Ports 20
6.2
Clock Generator 21
6.3
Clock Output Circuit 22
6.4
Basic Interval Timer/Watchdog Timer 23
6.5
Timer/Event Counter 24
6.6
Serial Interface 27
6.7
Bit Sequential Buffer 29
7.
INTERRUPT FUNCTION AND TEST FUNCTION 30
8.
STANDBY FUNCTION 32
9.
RESET FUNCTION 33
10. MASK OPTION 36
11. INSTRUCTION SETS 37
12. ELECTRICAL SPECIFICATIONS 49
13. CHARACTERISTICS CURVES (REFERENCE VALUES) 61
14. PACKAGE DRAWING 63
15. RECOMMENDED SOLDERING CONDITIONS 64
PD754302, 754304, 754302(A), 754304(A)
5
APPENDIX A. COMPARISON OF FUNCTIONS AMONG
PD750004, 754304, AND 75P4308 65
APPENDIX B. DEVELOPMENT TOOLS 67
APPENDIX C. RELATED DOCUMENTS 70
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