UPD784224 Datasheet, PDF (70/92 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCONTROLLERS

µPD784224, 784225, 784224Y, 784225Y
AC Characteristics (TA = −40°C to +85°C, VDD = VDD0 = VDD1 = AVDD = 1.8 to 5.5 V, VSS = VSS0 = VSS1 = AVSS = 0 V)
(2) External wait timing (1/2)
Parameter
Input time from address to
WAIT↓
Input time from ASTB↓ to
WAIT↓
Hold time from ASTB↓ to
WAIT
Delay time from ASTB↓ to
WAIT↑
Input time from RD↓ to
WAIT↓
Hold time from RD↓ to
WAIT↓
Delay time from RD↓ to
WAIT↑
Input time from WAIT↑ to
data
Delay time from WAIT↑ to
RD↑
Delay time from WAIT↑ to
WR↑
Delay time from WR↓ to
WAIT↓
Symbol
tDAWT
tDSTWT
tHSTWT
tDSTWTH
tDRWTL
tHRWT
tDRWTH
tDWTID
tDWTR
tDWTW
tDWWTL
Conditions
VDD = 5.0 V ±10%
VDD = 3.0 V ±10%
VDD = 2.0 V ±10%
VDD = 5.0 V ±10%
VDD = 3.0 V ±10%
VDD = 2.0 V ±10%
VDD = 5.0 V ±10%
VDD = 3.0 V ±10%
VDD = 2.0 V ±10%
VDD = 5.0 V ±10%
VDD = 3.0 V ±10%
VDD = 2.0 V ±10%
VDD = 5.0 V ±10%
VDD = 3.0 V ±10%
VDD = 2.0 V ±10%
VDD = 5.0 V ±10%
VDD = 3.0 V ±10%
VDD = 2.0 V ±10%
VDD = 5.0 V ±10%
VDD = 3.0 V ±10%
VDD = 2.0 V ±10%
VDD = 5.0 V ±10%
VDD = 3.0 V ±10%
VDD = 2.0 V ±10%
VDD = 5.0 V ±10%
VDD = 3.0 V ±10%
VDD = 2.0 V ±10%
VDD = 5.0 V ±10%
VDD = 3.0 V ±10%
VDD = 2.0 V ±10%
VDD = 5.0 V ±10%
VDD = 3.0 V ±10%
VDD = 2.0 V ±10%
MIN.
TYP.
MAX.
Unit
(2 + a) T − 40
ns
(2 + a) T − 60
ns
(2 + a) T − 300
ns
1.5T − 40
ns
1.5T − 60
ns
1.5T − 260
ns
(0.5 + n) T + 5
ns
(0.5 + n) T + 10
ns
(0.5 + n) T + 30
ns
(1.5 + n) T − 40
ns
(1.5 + n) T − 60
ns
(1.5 + n) T − 90
ns
T − 40
ns
T − 60
ns
T − 70
ns
nT + 5
ns
nT + 10
ns
nT + 30
ns
(1 + n) T − 40
ns
(1 + n) T − 60
ns
(1 + n) T − 90
ns
0.5T − 5
ns
0.5T − 10
ns
0.5T − 30
ns
0.5T
ns
0.5T
ns
0.5T + 5
ns
0.5T
ns
0.5T
ns
0.5T + 5
ns
T − 40
ns
T − 60
ns
T − 90
ns
Remark T: tCYK = 1/fXX (fXX: Main system clock frequency)
a: 1 (during address wait), otherwise, 0
n: Number of wait states (n ≥ 0)
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Data Sheet U12376EJ1V0DS00