NEC 78K0S/KB1+ User Manual page 343

AC Characteristics
(1) Basic operation (T
Parameter
Cycle time (minimum
instruction execution time)
TI000 input high-level width,
low-level width
Interrupt input high-level
width, low-level width
RESET input low-level
width
Notes 1. Use this product in a voltage range of 2.2 to 5.5 V because the detection voltage (V
clear (POC) circuit is 2.1 V ±0.1 V.
2. Selection of fsam = f
mode register 00 (PRM00). Note that when selecting the valid edge of the TI000 pin as the count clock,
fsam = f
<R> CPU Clock Frequency, Peripheral Clock Frequency
Parameter
Ceramic resonator,
crystal resonator,
external clock
High-speed internal
oscillator
Note Use this product in a voltage range of 2.2 to 5.5 V because the detection voltage (V
(POC) circuit is 2.1 V ±0.1 V.
CHAPTER 21 ELECTRICAL SPECIFICATIONS (Standard product, (A) grade product)
= −40 to +85°C, V
A DD
Symbol
T Crystal/ceramic oscillation
CY
clock, external clock input
High-speed internal
oscillation clock
4.0 V ≤ V
t ,
TIH
t
TIL
2.0 V ≤ V
t ,
INTH
t
INTL
t
RSL
, f /4, or f
XP XP
.
XP
Conditions
4.0 to 5.5 V
3.0 to 4.0 V
2.7 to 3.0 V
Note
2.0 to 2.7 V
4.0 to 5.5 V
2.7 to 4.0 V
Note
2.0 to 2.7 V
Standard product, (A) grade product T
Note 1
= 2.0 to 5.5 V , V = 0 V)
SS
Conditions
4.0 V ≤ V
DD
3.0 V ≤ V
DD
2.7 V ≤ V
DD
2.0 V ≤ V
DD
4.0 V ≤ V
DD
2.7 V ≤ V
DD
2.0 V ≤ V
DD
≤ 5.5 V
DD
< 4.0 V
DD
/256 is possible using bits 0 and 1 (PRM000, PRM001) of prescaler
XP
CPU Clock (f )
CPU
125 kHz ≤ f ≤ 10 MHz
CPU
125 kHz ≤ f ≤ 6 MHz
CPU
125 kHz ≤ f ≤ 5 MHz
CPU
125 kHz ≤ f ≤ 2 MHz
CPU
500 kHz (Typ.) ≤ f ≤ 8 MHz (Typ.)
CPU
500 kHz (Typ.) ≤ f ≤ 4 MHz (Typ.)
CPU
500 kHz (Typ.) ≤ f ≤ 2 MHz (Typ.)
CPU
User's Manual U17446EJ3V1UD
MIN. TYP.
≤ 5.5 V
0.2
< 4.0 V 0.33
< 3.0 V 0.4
< 2.7 V 1
≤ 5.5 V
0.23
< 4.0 V 0.47
< 2.7 V 0.95
2/fsam+
Note 2
0.1
2/fsam+
Note 2
0.2
1
2
) of the power-on-
POC
Peripheral Clock (f
125 kHz ≤ f ≤ 10 MHz
XP
125 kHz ≤ f ≤ 5 MHz
XP
500 kHz (Typ.) ≤ f ≤ 8 MHz (Typ.)
XP
500 kHz (Typ.) ≤ f ≤ 4 MHz (Typ.)
XP
) of the power-on-clear
POC
= −40 to +85°C
A
MAX. Unit
μ
16 s
μ
16 s
μ
16 s
μ
16 s
μ
4.22 s
μ
4.22 s
μ
4.22 s
μ
s
μ
s
μ
s
μ
s
)
XP
343