DATA SHEET
MOS INTEGRATED CIRCUIT
µ
PD750004,750006,750008,750004(A),750006(A),750008(A)
4 BIT SINGLE-CHIP MICROCONTROLLER
The
µ
PD750008 is one of the 75XL series 4-bit single-chip microcontrollers, which provide data processing
capability equal to that of an 8-bit microcontroller.
The
µ
PD750008 is an advanced model of the
µ
PD75008. It features an enhanced CPU function and enables high-
speed operation at a low voltage of 2.2 V. It can be substituted for the
µ
PD75008. In addition, it is best suited to
applications using batteries. The
µ
PD750008(A) has a higher reliability than the
µ
PD750008.
A built-in one-time PROM product,
µ
PD75P0016, is also available. It is suitable for small-scale production and
evaluation of application systems.
The following user’s manual describes the details of the functions of the
µ
PD750008. Be sure to read it
before designing application systems.
µ
PD750008 User’s Manual: U10740E
FEATURES
• Capable of low-voltage operation: V
DD
= 2.2 to 5.5 V
• Internal memory
Program memory (ROM)
: 4096
×
8 bits (
µ
PD750004 and
µ
PD750004(A))
: 6144
×
8 bits (
µ
PD750006 and
µ
PD750006(A))
: 8192
×
8 bits (
µ
PD750008 and
µ
PD750008(A))
Data memory (RAM)
: 512
×
4 bits
• Function for specifying the instruction execution time
(useful for high-speed operation and saving power)
0.95
µ
s, 1.91
µ
s, 3.81
µ
s, 15.3
µ
s (when operating at
4.19 MHz)
0.67
µ
s, 1.33
µ
s, 2.67
µ
s, 10.7
µ
s (when operating at
6.0 MHz)
122
µ
s (when operating at 32.768 kHz)
• Enhanced timer function (4 channels)
• Can be easily substituted for the
µ
PD75008 because
this product succeeds to the functions and instructions
of the
µ
PD75008.
APPLICATIONS
•
µ
PD750004,
µ
PD750006, and
µ
PD750008
Cordless telephones, radio devices, audio products, and home electric appliances
•
µ
PD750004(A),
µ
PD750006(A), and
µ
PD750008(A)
Electrical equipment for automobiles
The
µ
PD750004,
µ
PD750006,
µ
PD750008,
µ
PD750004(A),
µ
PD750006(A), and
µ
PD750008(A) differ only in
quality grade. In this manual, the
µ
PD750008 is described unless otherwise specified. Users of other than the
µ
PD750008 should read
µ
PD750008 as referring to the pertinent product.
When the description differs among
µ
PD750004,
µ
PD750006, and
µ
PD750008, they also refer to the pertinent
(A) products.
µ
PD750004
→
µ
PD750004(A),
µ
PD750006
→
µ
PD750006(A),
µ
PD750008
→
µ
PD750008(A)
The information in this document is subject to change without notice.
Document No. U10738EJ3V0DS00 (3rd edition)
Date Published February 1997 J
Printed in Japan
The mark
shows major revised points.
©
1994
1990
µ
PD750004, 750006, 750008, 750004(A), 750006(A), 750008(A)
ORDERING INFORMATION
Part number
Package
42-pin plastic shrink DIP (600 mil, 1.778 mm pitch)
44-pin plastic QFP (10
×
10 mm, 0.8 mm pitch)
42-pin plastic shrink DIP (600 mil, 1.778 mm pitch)
44-pin plastic QFP (10
×
10 mm, 0.8 mm pitch)
42-pin plastic shrink DIP (600 mil, 1.778 mm pitch)
44-pin plastic QFP (10
×
10 mm, 0.8 mm pitch)
42-pin plastic shrink DIP (600 mil, 1.778 mm pitch)
44-pin plastic QFP (10
×
10 mm, 0.8 mm pitch)
42-pin plastic shrink DIP (600 mil, 1.778 mm pitch)
44-pin plastic QFP (10
×
10 mm, 0.8 mm pitch)
42-pin plastic shrink DIP (600 mil, 1.778 mm pitch)
44-pin plastic QFP (10
×
10 mm, 0.8 mm pitch)
Quality grade
Standard
Standard
Standard
Standard
Standard
Standard
Special
Special
Special
Special
Special
Special
µ
PD750004CU-×××
µ
PD750004GB-×××-3BS-MTX
µ
PD750006CU-×××
µ
PD750006GB-×××-3BS-MTX
µ
PD750008CU-×××
µ
PD750008GB-×××-3BS-MTX
µ
PD750004CU(A)-×××
µ
PD750004GB(A)-×××-3BS-MTX
µ
PD750006CU(A)-×××
µ
PD750006GB(A)-×××-3BS-MTX
µ
PD750008CU(A)-×××
µ
PD750008GB(A)-×××-3BS-MTX
Remark
×××
is a mask ROM code number.
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.
DIFFERENCES BETWEEN
µ
PD75000× AND
µ
PD75000×(A)
Product number
µ
PD750004
µ
PD750006
µ
PD750004(A)
µ
PD750006(A)
µ
PD750008(A)
Special
Item
Quality grade
µ
PD750008
Standard
2
µ
PD750004, 750006, 750008, 750004(A), 750006(A), 750008(A)
FUNCTIONS
Item
Command execution
time
Function
• 0.95, 1.91, 3.81, 15.3
µ
s (when the main system clock operates at 4.19 MHz)
• 0.67, 1.33, 2.67, 10.7
µ
s (when the main system clock operates at 6.0 MHz)
• 122
µ
s (when the subsystem clock operates at 32.768 kHz)
Internal memory
ROM
4096
×
8 bits (
µ
PD750004)
6144
×
8 bits (
µ
PD750006)
8192
×
8 bits (
µ
PD750008)
RAM
General-purpose
register
I/O port
CMOS input
CMOS I/O
512
×
4 bits
• When operating in 4 bits: 8
×
4 banks
• When operating in 8 bits: 4
×
4 banks
8
18
Can incorporate 7 pull-up resistors that are specified with the software.
Can directly drive the LED.
Can incorporate 18 pull-up resistors that are specified with the software.
Can directly drive the LED.
Can withstand 13 V.
Can incorporate pull-up resistors that are specified with the mask option.
Total
Timer
34
4 channels
•
8-bit timer/event counter: 1 channel
•
8-bit timer counter: 1 channel
•
Basic interval timer/watchdog timer: 1 channel
N-ch open
drain I/O
8
•
lock timer: 1 channel
Serial interface
•
Three-wire serial I/O mode ... switchable between the start LSB and the start MSB
•
Two-wire serial I/O mode
•
SBI mode
16 bits
Bit sequential buffer (BSB)
Clock output (PCL)
•
Φ,
524 kHz, 262 kHz, 65.5 kHz (when the main system clock operates at 4.19 MHz)
•
Φ,
750 kHz, 375 kHz, 93.8 kHz (when the main system clock operates at 6.0 MHz)
•
2 kHz, 4 kHz, 32 kHz (when the main system clock operates at 4.19 MHz or when the
subsystem clock operates at 32.768 kHz)
•
2.93 kHz, 5.86 kHz, 46.9 kHz (when the main system clock operates at 6.0 MHz)
Buzzer output (BUZ)
Vectored interrupt
External :
Internal :
3
4
1
1
Test input
External :
Internal :
System clock oscillator
Standby
Operating ambient
temperature range
Supply voltage
Package
•
•
Ceramic or crystal oscillator for main system clock
Crystal oscillator for subsystem clock
STOP/HALT mode
T
A
= -40 to +85
°C
V
DD
= 2.2 to 5.5 V
42-pin plastic shrink DIP (600 mil, 1.778 mm pitch)
44-pin plastic QFP (10
×
10 mm, 0.8 mm pitch)
3
µ
PD750004, 750006, 750008, 750004(A), 750006(A), 750008(A)
CONTENTS
1.
2.
3.
PIN CONFIGURATION (TOP VIEW) .........................................................................................
BLOCK DIAGRAM ......................................................................................................................
PIN FUNCTIONS .........................................................................................................................
3.1
3.2
3.3
3.4
PORT PINS ......................................................................................................................................
NON-PORT PINS ............................................................................................................................
PIN INPUT/OUTPUT CIRCUITS .....................................................................................................
CONNECTION OF UNUSED PINS ................................................................................................
6
8
9
9
10
11
13
4.
Mk
Ι
MODE/Mk
ΙΙ
MODE SWITCH FUNCTION ........................................................................
4.1
4.2
DIFFERENCES BETWEEN Mk
Ι
MODE AND Mk
ΙΙ
MODE ........................................................
SETTING OF THE STACK BANK SELECTION REGISTER (SBS) ............................................
14
14
15
5.
6.
MEMORY CONFIGURATION .....................................................................................................
PERIPHERAL HARDWARE FUNCTIONS ................................................................................
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
6.9
DIGITAL I/O PORTS .......................................................................................................................
CLOCK GENERATOR ....................................................................................................................
CONTROL FUNCTIONS OF SUBSYSTEM CLOCK OSCILLATOR ............................................
CLOCK OUTPUT CIRCUIT ............................................................................................................
BASIC INTERVAL TIMER/WATCHDOG TIMER ...........................................................................
CLOCK TIMER ................................................................................................................................
TIMER/EVENT COUNTER ..............................................................................................................
SERIAL INTERFACE ......................................................................................................................
BIT SEQUENTIAL BUFFER ...........................................................................................................
16
21
21
21
23
24
25
26
27
30
32
7.
8.
9.
INTERRUPT FUNCTIONS AND TEST FUNCTIONS ................................................................
STANDBY FUNCTION................................................................................................................
RESET FUNCTION .....................................................................................................................
33
35
36
39
40
53
67
10. MASK OPTION ...........................................................................................................................
11. INSTRUCTION SET ....................................................................................................................
12. ELECTRICAL CHARACTERISTICS ..........................................................................................
13. CHARACTERISTIC CURVE (REFERENCE VALUES) .............................................................
4
µ
PD750004, 750006, 750008, 750004(A), 750006(A), 750008(A)
14. PACKAGE DRAWINGS ..............................................................................................................
15. RECOMMENDED SOLDERING CONDITIONS .........................................................................
APPENDIX A FUNCTIONS OF THE
µ
PD75008,
µ
PD750008, AND
µ
PD75P0016 ......................
APPENDIX B DEVELOPMENT TOOLS ..........................................................................................
APPENDIX C RELATED DOCUMENTS ..........................................................................................
70
73
74
76
80
5
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