DATA SHEET
MOS INTEGRATED CIRCUIT
µ
PD6P5
4-BIT SINGLE-CHIP MICROCONTROLLER
FOR INFRARED REMOTE CONTROL TRANSMISSION
The
µ
PD6P5 is a microcontroller for infrared remote control transmitters which is provided with a one-time PROM
as the program memory.
Because users can write programs for the
µ
PD6P5, it is ideal for program evaluation and small-scale production
of the application systems using the
µ
PD64A or 65.
When reading this document, also refer to the
µ
PD64A, 65 Data Sheet (U14380E).
FEATURES
• Program memory (one-time PROM) : 2,026
×
10 bits
• Data memory (RAM)
• 9-bit programmable timer
• Command execution time
• Stack level
• I/O pins (K
I/O
)
• Input pins (K
I
)
• Sense input pin (S
0
, S
2
)
• S
1
/LED pin (I/O)
• Power supply voltage
• Operating ambient temperature
• Oscillator frequency
• POC circuit
: 32
×
4 bits
: 1 channel
: 16
µ
s (when operating at f
X
= 4 MHz: ceramic oscillation)
: 1 level (Stack RAM is for data memory RF as well.)
: 8 units
: 4 units
: 2 units
: 1 unit (In output mode, this is the remote control transmission display
pin.)
: V
DD
= 2.2 to 3.6 V
: T
A
= –40 to +85
°C
: f
X
= 2.4 to 4.8 MHz
• Built-in carrier generation circuit for infrared remote control
APPLICATION
Infrared remote control transmitter (for AV and household electric appliances)
The information in this document is subject to change without notice. Before using this document, please
confirm that this is the latest version.
Not all devices/types available in every country. Please check with local NEC representative for
availability and additional information.
Document No. U14760EJ1V0DS00 (1st edition)
Date Published May 2000 J CP(K)
Printed in Japan
©
2000
µ
PD6P5
ORDERING INFORMATION
Part Number
Package
20-pin plastic SSOP (7.62 mm (300))
µ
PD6P5MC-5A4
PIN CONFIGURATION (TOP VIEW)
20-pin Plastic SSOP (7.62 mm (300))
•
µ
PD6P5MC-5A4
(1) Normal operation mode
K
I/O6
K
I/O7
S
0
S
1
/LED
REM
V
DD
X
OUT
X
IN
GND
S
2
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
K
I/O5
K
I/O4
K
I/O3
K
I/O2
K
I/O1
K
I/O0
K
I3
K
I2
K
I1
K
I0
2
Data Sheet U14760EJ1V0DS00
µ
PD6P5
(2)
PROM programming mode
D
6
D
7
CLK
(L)
1
2
3
4
5
20
19
18
17
16
15
14
13
12
11
D
5
D
4
D
3
D
2
D
1
D
0
MD
3
MD
2
MD
1
MD
0
V
DD
X
OUT
X
IN
GND
V
PP
6
7
8
9
10
Caution Round brackets ( ) indicate the pins not used in the PROM programming mode.
L: Connect each of these pins to GND via a pull-down resistor.
BLOCK DIAGRAM
REM
CARRIER
GENERATOR
4
CPU
CORE
ONE-
TIME
PROM
PORT K
I
4
K
I0
-K
I3
8
PORT K
I/O
8
K
I/O0
-K
I/O7
S
1
/LED
9-bit
TIMER
2
PORT S
2
S
0
, S
1
/LED, S
2
RAM
SYSTEM
CONTROL
X
IN
X
OUT
V
DD
GND
Data Sheet U14760EJ1V0DS00
3
µ
PD6P5
LIST OF FUNCTIONS
Item
ROM capacity
2,026
×
10 bits
One-time PROM
RAM capacity
Stack
I/O pin
32
×
4 bits
1 level (shared with RF of RAM)
•
Key input (K
I
)
•
Key I/O (K
I/O
)
•
Key expansion input (S
0
, S
1
, S
2
)
•
Remote control transmitter display output (LED)
Number of keys
•
32 keys
•
56 keys (when expanded by key expansion input)
Clock frequency
Ceramic oscillation
•
f
X
= 2.4 to 4.8 MHz
Instruction execution time
Carrier frequency
Timer
POC circuit
Supply voltage
Operating ambient
temperature
Package
•
20-pin plastic SSOP (7.62 mm (300))
16
µ
s (at f
X
= 4 MHz)
f
X
/8, f
X
/16, f
X
/64, f
X
/96, f
X
/128, f
X
/192, no carrier (high level)
9-bit programmable timer
Provided
V
DD
= 2.2 to 3.6 V
•
T
A
= –40 to +85
°C
: 1 channel
: 4 pins
: 8 pins
: 3 pins
: 1 pin (shared with S
1
pin)
µ
PD6P5
4
Data Sheet U14760EJ1V0DS00
µ
PD6P5
TABLE OF CONTENTS
1. PIN FUNCTIONS .........................................................................................................................
1.1
1.2
1.3
1.4
1.5
Normal Operation Mode ....................................................................................................................
PROM Programming Mode ...............................................................................................................
INPUT/OUTPUT Circuits of Pins ......................................................................................................
Dealing with Unused Pins ................................................................................................................
Notes on Using K
I
Pin at Reset ........................................................................................................
6
6
7
8
9
9
2. DIFFERENCES AMONG
µ
PD64A, 65, AND
µ
PD6P5 ................................................................ 10
2.1
Program Memory (One-time PROM) ................................................................................................ 11
3. WRITING AND VERIFYING ONE-TIME PROM (PROGRAM MEMORY) .................................. 12
3.1
3.2
3.3
Operation Mode When Writing/Verifying Program Memory .......................................................... 12
Program Memory Writing Procedure .............................................................................................. 13
Program Memory Reading Procedure ............................................................................................. 14
4. ELECTRICAL SPECIFICATIONS ............................................................................................... 15
5. CHARACTERISTIC CURVE (REFERENCE VALUES) .............................................................. 21
6. APPLIED CIRCUIT EXAMPLE ................................................................................................... 22
7. PACKAGE DRAWINGS .............................................................................................................. 23
8. RECOMMENDED SOLDERING CONDITIONS .......................................................................... 24
APPENDIX A. DEVELOPMENT TOOLS ......................................................................................... 25
APPENDIX B. EXAMPLE OF REMOTE-CONTROL TRANSMISSION FORMAT .......................... 26
Data Sheet U14760EJ1V0DS00
5
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