UPD65MC NEC, UPD65MC Datasheet - Page 3

• Manufacturer Part Number: UPD65MC
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION
• Manufacturer: NEC

BLOCK DIAGRAM
LIST OF FUNCTIONS
ROM capacity
RAM capacity
Stack
I/O pins
Number of keys
Clock frequency
Instruction execution time
Carrier frequency
Timer
POC circuit
Supply voltage
Operating ambient temperature
Package
S
1
/LED
REM
Item
CARRIER
GENERATOR
9-bit
TIMER
1002
Mask ROM
32
1 level (multiplexed with RF of RAM)
• Key input (K
• Key I/O (K
• Key extended input (S
• Remote control transmission display output (LED) : 1 (multiplexed with S
• 32 keys
• 56 keys (when extended by key extension input)
Ceramic oscillation
• f
16 s (f
f
9-bit programmable timer: 1 channel
Internal
V
T
20-pin plastic SSOP (300 mil)
X
DD
A
/8, f
X
= –40 to +85 C
= 2.4 to 8 MHz
= 2.0 to 3.6 V
4 bits
X
/16, f
10 bits
X
= 4 MHz)
PD64A
X
I/O
CPU
CORE
/64, f
RAM
Data Sheet U14380EJ2V0DS00
I
)
)
X
/96, f
X
0
/128, f
, S
ROM
1
, S
2026
X
2
)
/192, no carrier (high level)
10 bits
4
8
3
PD65
SYSTEM
CONTROL
PORT K
PORT K
PORT S
: 4
: 8
: 3
I/O
I
Ceramic oscillation
• f
One-time PROM
X
4
8
3
= 2.4 to 5.6 MHz
K
K
S
X
X
V
GND
I0
I/O0
0
IN
OUT
DD
PD64A, 65
, S
-K
PD6P5
-K
I3
1
/LED, S
I/O7
1
pin)
2
3