DATA SHEET
MOS INTEGRATED CIRCUIT
µ
PD75208
4-BIT SINGLE-CHIP MICROCOMPUTER
DESCRIPTION
The
µ
PD75208 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 controller/driver, 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.
It uses the VCR, ECR and CD fluorescent display tubes as display devices and is most suitable for applications
requiring the timer/watch function and high-speed interrupt servicing. It can help to provide the unit with many
functions and to decrease performance costs.
With the
µ
PD75208, the
µ
PD75P216A, 75P218 one-time PROM products are available for system development
evaluation or small production.
The following manual provides detailed description of the functions of the
µ
PD75208. Be sure to read this manual
when you design an application system.
µ
PD75216A User’s Manual: IEM-988
5
FEATURES
•
Architecture equal to that of an 8-bit microcomputer
•
High-speed operation : Minimum instruction execution time : 0.95
µ
s (when operated at 4.19 MHz)
•
Instruction execution time variable function realizing a wide range of operating voltages
•
•
•
•
On-chip large-capacity program memory : 8K bytes
Watch operation with an ultra low current consumption : 5
µ
A TYP. (at the 3 V operation)
On-chip programmable fluorescent display tube controller/driver
Timer function : 4 ch
• 14-bit PWM output capability with the voltage synthesizer type electronic tuner
• Buzzer output capability
•
Interrupt function with importance attached to applications
• For power-off detection
• For remote controlled reception
•
Product with an on-chip PROM :
µ
PD75P216A,
µ
PD75P218 (on-chip EPROM : WQFN package)
5
5
ORDERING INFORMATION
Ordering Code
Package
64-pin plastic shrink DIP (750 mil)
64-pin plastic QFP (14
×
20 mm)
Quality Grade
Standard
Standard
µ
PD75208CW-×××
µ
PD75208GF-×××-3BE
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 information in this document is subject to change without notice.
Document No. IC-1884A
(O. D. No.
IC-7048C)
Date Published August 1993 P
Printed in Japan
The mark
5
shows major revised points.
© NEC Corporation 1991
µ
PD75208
5
LIST OF FUNCTIONS
Item
Instruction execution time
Function
• 0.95, 1.91, 15.3
µ
s (Main system clock : 4.19 MHz operation)
• 122
µ
s (Subsystem clock : 32.768 kHz operation)
8064
×
8 bits
497
×
4 bits
• 4-bit manipulation : 8
×
4 banks
• 8-bit manipulation : 4
×
4 banks
33
8
20
CMOS input pin
CMOS input/output pins
• Direct LED drive capability : 8
• On-chip pull-down resistor by mask option capability : 4
• Direct LED drive capability : 4
• PWM/pulse output : 1
• On-chip pull-down resistor by mask option capability : 4
On-chip memory
ROM
RAM
General register
Input/output port
FIP ® dual-function pin
included
FIP dedicated pin
excluded
FIP controller/driver
Timer
Serial interface
Vectored interrupt
Test input
System clock oscillator
Standby function
Mask option
Operating temperature range
Operating voltage
Package
2
•
•
•
•
•
5
CMOS output pin
No. of segments : 9 to 12 segments
No. of digits
: 9 to 16 digits
Dimmer function : 8 levels
On-chip pull-down resistor by mask option capability
Key scan interrupt generation
•
•
•
•
Timer/pulse generator : 14-bit PWM output enabled
Watch timer
: Buzzer output enabled
Timer/event counter
Basic interval timer
: Watchdog timer application capability
4 channels
• MSB start/LSB start switchable
• Serial bus configuration capability
External : 3, Internal : 5
External : 1, Internal : 1
• Ceramic/crystal oscillator for main system clock oscillation : 4.194304 MHz standard
• Crystal oscillator for subsystem clock oscillation : 32.768 kHz standard
STOP/HALT mode
• Power-on reset, power-on flag
• High withstand voltage port : Pull-down resistor or open-drain output
• Port 6 : Pull-down resistor
–40 to +85
°C
2.7 to 6.0 V (standby data hold : 2.0 to 6.0 V)
• 64-pin plastic shrink DIP (750 mil)
• 64-pin plastic QFP (14
×
20 mm)
µ
PD75208
CONTENTS
1.
2.
3.
PIN CONFIGURATION (TOP VIEW) ....................................................................................... 5
BLOCK DIAGRAM .................................................................................................................... 6
PIN FUNCTIONS ...................................................................................................................... 7
3.1
3.2
3.3
3.4
3.5
3.6
PORT PINS .................................................................................................................................... 7
NON-PORT PINS .......................................................................................................................... 8
PIN INPUT/OUTPUT CIRCUIT LIST ............................................................................................ 9
UNUSED PINS TREATMENT .................................................................................................... 10
P00/INT4 PIN AND RESET PIN OPERATING PRECAUTIONS ............................................... 11
XT1, XT2 AND P50 PIN OPERATING PRECAUTIONS ........................................................... 11
4.
5.
ARCHITECTURE AND MEMORY MAP OF THE
µ
PD75208 ............................................... 12
PERIPHERAL HARDWARE FUNCTIONS .............................................................................. 14
5.1
5.2
5.3
5.4
5.5
5.6
5.7
5.8
5.9
PORTS .......................................................................................................................................... 14
CLOCK GENERATOR .................................................................................................................. 15
BASIC INTERVAL TIMER ........................................................................................................... 16
WATCH TIMER .......................................................................................................................... 17
TIMER/EVENT COUNTER ......................................................................................................... 18
TIMER/PULSE GENERATOR ..................................................................................................... 19
SERIAL INTERFACE ................................................................................................................... 20
FIP CONTROLLER/DRIVER ........................................................................................................ 22
POWER-ON FLAG (MASK OPTION) ......................................................................................... 23
6.
7.
8.
9.
INTERRUPT FUNCTIONS ...................................................................................................... 23
STANDBY FUNCTIONS ......................................................................................................... 25
RESET FUNCTIONS ............................................................................................................... 25
INSTRUCTION SET ................................................................................................................ 26
10. MASK OPTION SELECTION .................................................................................................. 35
11. APPLICATION BLOCK DIAGRAM ......................................................................................... 36
11.1
11.2
11.3
VCR TIMER TUNER .................................................................................................................... 36
COMPACT DISK PLAYER .......................................................................................................... 37
ECR ............................................................................................................................................... 37
3
µ
PD75208
12. ELECTRICAL SPECIFICATIONS ............................................................................................ 38
13. CHARACTERISTIC CURVES .................................................................................................. 50
14. PACKAGE INFORMATION .................................................................................................... 54
15. RECOMMENDED SOLDERING CONDITIONS ..................................................................... 57
APPENDIX A DEVELOPMENT TOOLS .................................................................................... 58
APPENDIX B RELATED DOCUMENT ....................................................................................... 59
4
µ
PD75208
1. PIN CONFIGURATION (TOP VIEW)
S3
S2
S1
S0
P00/INT4
P01/SCK
P02/SO
P03/SI
P10/INT0
P11/INT1
P12/INT2
P13/TI0
P20
P21
P22
P23/BUZ
P30
P31
P32
P33
P60
P61
P62
P63
P40
P41
P42
P43
PPO
X1
X2
V
SS
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
V
DD
S4
S5
S6
S7
S8
S9
V
PRE
V
LOAD
T15/S10
T14/S11
T13/PH0
T12/PH1
T11/PH2
T10/PH3
T9
T8
T7
T6
T5
T4
T3
T2
T1
T0
RESET
P53
P52
P51
P50
XT2
XT1
P12/INT2
P11/INT1
P10/INT0
P23/BUZ
P13/TI0
P41
P42
P43
PPO
X1
X2
V
SS
XT1
XT2
P50
P51
P52
P53
51 50 49 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33
52
32
53
54
55
56
57
58
59
60
61
62
63
64
1
2
3
4
5
6
7
8
31
30
29
28
27
26
25
24
23
22
21
20
9 10 11 12 13 14 15 16 17 18 19
P02/SO
P03/SI
µ
PD75208CW-×
× ×
P40
P63
P62
P61
P60
P33
P32
P31
P30
P22
P21
P20
P01/SCK
P00/INT4
S0
S1
S2
S3
V
DD
S4
S5
S6
S7
S8
S9
µ
PD75208GF-×
× ×-3BE
RESET
T0
T1
T2
T3
T4
T5
T6
T7
T8
T9
T10/PH3
T11/PH2
T12/PH1
T13/PH0
T14/S11
T15/S10
V
LOAD
V
PRE
5
实时操作系统RTOS
京公网安备 11010802033920号
Copyright © 2005-2026 EEWORLD.com.cn, Inc. All rights reserved
电子工程世界
