upd64a Renesas Electronics Corporation., upd64a Datasheet - Page 50

• Manufacturer Part Number: upd64a
• Description: 4-bit Single-chip Microcontroller For Infrared Remote Control Transmission
• Manufacturer: Renesas Electronics Corporation.

AC Characteristics (T
POC Circuit (T
System Clock Oscillator Characteristics (T
50
Instruction execution time
K
width
POC detection voltage
Oscillation frequency
(ceramic resonator)
I
, S
Note 10 + 52/f
Remark t
Note The voltage with which the POC circuit cancels an internal reset. If V
0
, S
Parameter
Parameter
Parameter
1
, S
canceled.
From the time of V
period of V
2
CY
high-level
A
= 64/f
= –40 to +85 C)
X
+ oscillation growth time
Note
POC
X
A
(f
X
= –40 to +85 C, V
Symbol
Symbol
Symbol
: System clock oscillation frequency)
t
t
V
f
CY
H
V
X
POC
DD
POC
lasts less than 1 ms, the internal reset may not take effect.
When standby mode is released
V
DD
until the internal reset takes effect, a lag of up to 1 ms occurs. When the
DD
Data Sheet U14380EJ3V0DS00
A
= 2.0 to 3.6 V)
= –40 to +85 C, V
Conditions
Conditions
Conditions
In HALT mode
In STOP mode
DD
= 2.0 to 3.6 V)
MIN.
Note
MIN.
MIN.
7.9
2.4
10
10
POC
< V
TYP.
TYP.
TYP.
1.85
3.64
DD
, the internal reset is
MAX.
MAX.
MAX.
2.0
8.0
27
PD64A, 65
MHz
Unit
Unit
Unit
V
s
s
s
s