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UPD178002 Datasheet(PDF) 33 Page - NEC

Part # UPD178002
Description  8-BIT SINGLE-CHIP MICROCONTROLLERS
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Manufacturer  NEC [NEC]
Direct Link  http://www.nec.com/
Logo NEC - NEC

UPD178002 Datasheet(HTML) 33 Page - NEC

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33
µPD178002, 178003
Data Sheet U12628EJ3V0DS00
AC Characteristics
(1) Basic operation (TA = –40 to +85
°C, VDD = 3.5 to 5.5 V)
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Cycle time
TCY
fXX = fX/2Note 1, fX = 4.5 MHz operation
0.89
14.22
µs
(Minimum instruction
fXX = fXNote 2,
4.5 V
≤ VDD ≤ 5.5 V
0.44
7.11
µs
execution time)
fX = 4.5 MHz operation
3.5 V
≤ VDD < 4.5 V
0.89
7.11
µs
TI1, TI2 input
fTI
4.5 V
≤ VDD ≤ 5.5 V
0
4.5
MHz
frequency
3.5 V
≤ VDD < 4.5 V
0
275
kHz
TI1, TI2 input high-/
tTIH,
4.5 V
≤ VDD ≤ 5.5 V
111
ns
low-level width
tTIL
3.5 V
≤ VDD < 4.5 V
1.8
µs
Interrupt input high-/
tINTH,
INTP0
8/fsamNote 3
µs
low-level width
tINTL
INTP1
10
µs
RESET low level
tRSL
10
µs
width
Notes 1. When the oscillation mode select register (OSMS) is set to 00H.
2. When OSMS is set to 01H.
3. Selection of fsam = fXX/2N, fXX/32, fXX/64, fXX/128 is possible with bits 0 (SCS0) and 1 (SCS1) of sampling
clock select register (SCS) (when N = 0 to 4).
Remarks 1. fXX: System clock frequency (fX or fX/2)
2. fX: System clock oscillation frequency
TCY vs. VDD (At fXX = fX/2 system clock operation)
TCY vs. VDD (At fXX = fX system clock operation)
60
10
2.0
1.0
0.5
0.4
0
123
4
5
6
Supply voltage VDD [V]
Guaranteed
operation
range
60
10
2.0
1.0
0.5
0.4
0
123
4
5
6
Supply voltage VDD [V]
Guaranteed
operation
range


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