UPD784020 Datasheet, PDF (72/90 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCOMPUTER

mPD784020, 784021
DATA RETENTION CHARACTERISTICS (TA = –40 to +85 °C)
Parameter
Symbol
Conditions
Data retention voltage
VDDDR STOP mode
Data retention current
IDDDR VDDDR = 2.5 to 5.5 V^{Note 1}
VDDDR = 2.5 V^{Note 1}
VDD rising time
tRVD
VDD falling time
tFVD
VDD retention time
tHVD
(referred to STOP mode setting)
STOP release signal input time tDREL
Oscillation settling time
tWAIT Crystal
Ceramic resonator
Low-level input voltage
VIL
Specified pins^{Note 2}
High-level input voltage
VIH
Min.
Typ.
Max.
Unit
2.5
5.5
V
10
50
mA
2
10
mA
200
ms
200
ms
0
ms
0
30
5
0
0.9VDDDR
ms
ms
ms
0.1VDDDR
V
VDDDR
V
Notes 1. When the input voltage for the pins described in Note 2 satisfies the VIL and VIH conditions in the above
table
2. Pins RESET, P20/NMI, P21/INTP0, P22/INTP1, P23/INTP2/CI, P24/INTP3, P25/INTP4/ASCK/SCK1,
P26/INTP5, P27/SI0, P32/SCK0, and P33/SO0/SB0
AC Timing Test Points
VDD – 1 V
0.45 V
0.8VDD or 2.2 V
0.8 V
Test points
0.8VDD or 2.2 V
0.8 V
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