UPD780023A Datasheet, PDF (62/96 Pages) NEC – 8-BIT SINGLE-CHIP MICROCONTROLLERS

µPD780021A, 780022A, 780023A, 780024A, 780021AY, 780022AY, 780023AY, 780024AY
AC Characteristics
(1) Basic Operation (TA = –40 to +85°C, VDD = 1.8 to 5.5 V)
Parameter
Cycle time
(Min. instruction
execution time)
TI00, TI01 input
high-/low-level
width
TI50, TI51 input
frequency
TI50, TI51 input
high-/low-level
width
Symbol
TCY
tTIH0, tTIL0
fTI5
tTIH5, tTIL5
Conditions
Operating with
4.0 V ≤ VDD ≤ 5.5 V
main system clock _{2.7 V ≤ VDD < 4.0 V}
1.8 V ≤ VDD < 2.7 V
Operating with subsystem clock
4.0 V ≤ VDD ≤ 5.5 V
2.7 V ≤ VDD < 4.0 V
1.8 V ≤ VDD < 2.7 V
2.7 V ≤ VDD ≤ 5.5 V
1.8 V ≤ VDD < 2.7 V
2.7 V ≤ VDD ≤ 5.5 V
1.8 V ≤ VDD < 2.7 V
MIN.
0.238
0.4
1.6
103.9^{Note 1}
2/fsam+0.1^{Note 2}
2/fsam+0.2^{Note 2}
2/fsam+0.5^{Note 2}
0
0
100
TYP.
122
1.8
Interrupt request
input high-/low-
level width
tINTH, tINTL
INTP0 to INTP3,
P40 to P47
2.7 V ≤ VDD ≤ 5.5 V
1
1.8 V ≤ VDD < 2.7 V
2
RESET
tRSL
2.7 V ≤ VDD ≤ 5.5 V
10
low-level width
1.8 V ≤ VDD < 2.7 V
20
MAX.
16
16
16
125
4
275
Unit
µs
µs
µs
µs
µs
µs
µs
MHz
kHz
ns
ns
µs
µs
µs
µs
Notes 1. Value when the external clock is used. When a crystal resonator is used, it is 114 µs (MIN.).
2. Selection of fsam = fX, fX/4, fX/64 is possible using bits 0 and 1 (PRM00, PRM01) of prescaler mode register
0 (PRM0). However, if the TI00 valid edge is selected as the count clock, the value becomes fsam = fX/8.
62
Data Sheet U14042EJ4V0DS