UPD61P34BGS NEC, UPD61P34BGS Datasheet - Page 4

• Manufacturer Part Number: UPD61P34BGS
• Description: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR INFRARED REMOTE CONTROL TRANSMISSION
• Manufacturer: NEC

LIST OF FUNCTIONS
4
ROM capacity
RAM capacity
Stack
I/O pin
Number of keys
Clock frequency
Instruction execution time
Carrier frequency
Timer
POC circuit
Supply voltage
Operating ambient
temperature
Package
Note It is necessary to design the application circuit so that the RESET pin goes low at a supply voltage of less
than 2.2 V.
Item
1002
One-time PROM
32
1 level (shared with RF of RAM)
Key input (K
Key I/O (K
Key expansion input (S
Remote control transmitter display output (LED)
32 keys
48 keys (when expanded by key expansion input)
96 keys (when expanded by key expansion input and diode)
Ceramic oscillation
f
f
16 s (at f
f
9-bit programmable timer
Internal
V
• T
• T
• 20-pin plastic SOP (300 mil)
• 20-pin plastic SSOP (300 mil)
X
X
X
, f
DD
= 300 to 500 kHz
= 500 kHz to 1 MHz
A
A
X
= 2.2 to 3.6 V
/2, f
= –40 to +85 C
= –20 to +70 C (when POC circuit used)
4 bits
10 bits
X
/8, f
X
I/O
= 500 kHz)
I
)
)
X
/12, f
Data Sheet U13595EJ2V0DS00
X
/16, f
Note
0
, S
X
/24, no carrier (high level)
1
)
: 1 channel
PD61P34B
: 4 pins
: 8 pins
: 2 pins
: 1 pin (shared with S
1
PD61P34B
pin)