UPD178P018A Datasheet, PDF (28/60 Pages) NEC – 8-BIT SINGLE-CHIP MICROCONTROLLER

µPD178P018A
AC CHARACTERISTICS
(1) BASIC OPERATION (TA = –40 to +85 °C, VDD = 3.5 to 5.5 V)
Parameter
Symbol
Test Conditions
Cycle time
TCY fXX = fX/2 ^{Note 1}, fX = 4.5-MHz operation
(Minimum instruction
execution time)
fXX = fX ^{Note 2},
fX = 4.5-MHz operation
4.5 ≤ VDD ≤ 5.5 V
3.5 ≤ VDD < 4.5 V
TI1, TI2 input
frequency
fTI
4.5 ≤ VDD ≤ 5.5 V
3.5 V ≤ VDD < 4.5 V
TI1, TI2 input high/ tTIH, 4.5 ≤ VDD ≤ 5.5 V
low-level width
tTIL
3.5 V ≤ VDD < 4.5 V
Interrupt input high/
low-level width
TINTH,
TINTL
INTP0
INTP1 to INTP6
RESET low-level
tRSL
width
MIN. TYP.
0.89
0.44
0.89
0
0
111
1.8
8/fsam ^{Note 3}
10
10
MAX.
14.22
7.11
7.11
4.5
275
Unit
µs
µs
µs
MHz
kHz
ns
µs
µs
µs
µs
Notes
1. When the Oscillation Mode Selection register (OSMS) is set to 00H.
2. When OSMS is set to 01H.
3. In combination with bits 0 (SCS0) and 1 (SCS1) of the Sampling Clock Select register (SCS),
selection of fsam is possible among fXX/2^N, fXX/32, fXX/64, and fXX/128 (when N = 0 to 4).
Remarks 1. fXX: System clock frequency (fX or fX/2)
2. fX: System clock oscillation frequency
TCY vs VDD
(when system clock fXX is operating at fX/2)
TCY vs VDD
(when system clock fXX is operating at fX)
60
60
10
Operation
Guaranteed
Range
2.0
1.0
0.5
0.4
0
123456
Power Supply Voltage VDD [V]
10
Operation
Guaranteed
2.0
Range
1.0
0.5
0.4
0
123456
Power Supply Voltage VDD [V]
28