UPD61P34BGS NEC, UPD61P34BGS Datasheet - Page 17

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

AC Characteristics (T
POC Circuit
System Clock Oscillator Characteristics (T
Instruction execution time t
K
RESET low-level width
POC-detected voltage
POC circuit current
Oscillator frequency
(ceramic resonator)
I
Notes 1. When using at f
Remark t
Notes 1. Operates effectively under the conditions of f
Note When using at f
, S
0
, S
Parameter
Parameter
Parameter
1
pin goes low when the supply voltage is less than 2.2 V.
An external circuit example
high-level width
2. 10 + 260/f
2. Refers to the voltage with which the POC circuit cancels an internal reset. If V
Note 1
CY
pin goes low when the supply voltage is less than 2.2 V.
reset is canceled.
From the time of V
period of V
= 8/f
(T
Note 2
X
A
(f
= –20 to +70 C)
A
X
X
: System clock oscillator frequency)
POC
= –40 to +85 C, V
X
Symbol
Symbol
Symbol
+ oscillation growth time
t
t
V
I
f
CY
H
RSL
POC
X
= 500 kHz or higher, it is necessary to design the application circuit so that the RESET
POC
X
= 500 kHz or higher, it is necessary to design the application circuit so that the RESET
V
POC
DD
Note 1
When releasing standby mode at HALT mode
Note
lasts less than 1 ms, the internal reset may not take effect.
V
DD
until the internal reset takes effect, lag of up to 1 ms occurs. When the
Data Sheet U13595EJ2V0DS00
DD
C1
A
= 2.2 to 3.6 V)
= –40 to +85 C, V
X
Test Conditions
Test Conditions
Test Conditions
IN
X
X
OUT
= 300 to 500 kHz.
Rd
C2
at STOP mode Note 2
DD
= 2.2 to 3.6 V)
MIN.
MIN.
MIN.
15.9
300
300
7.9
1.8
10
10
10
TYP.
TYP.
TYP.
455
455
2.0
1.2
POC
< V
PD61P34B
MAX.
MAX.
MAX.
1000
500
DD
2.2
1.5
27
27
, the internal
Unit
Unit
Unit
kHz
kHz
V
A
s
s
s
s
s
s
17