UPD784224 Datasheet, PDF (67/92 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)
(1) Read/write operation (1/3)
Parameter
Cycle time
Address setup time
(to ASTB↓)
Address hold time
(from ASTB↓)
ASTB high-level width
Address hold time
(from RD↑)
Delay time from address to
RD↓
Address float time
(from RD↓)
Data input time from
address
Data input time from ASTB↓
Data input time from RD↓
Symbol
tCYK
tSAST
tHSTLA
tWSTH
tHRA
tDAR
tFAR
tDAID
tDSTID
tDRID
Conditions
4.5 V ≤ VDD ≤ 5.5 V
2.7 V ≤ VDD < 4.5 V
2.0 V ≤ VDD < 2.7 V
1.8 V ≤ VDD < 2.0 V
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.
80
160
320
500
(0.5 + a) T − 20
(0.5 + a) T − 40
(0.5 + a) T − 80
0.5T − 19
0.5T − 24
0.5T − 34
(0.5 + a) T − 17
(0.5 + a) T − 40
(0.5 + a) T − 110
0.5T − 14
0.5T − 14
0.5T − 14
(1 + a) T − 24
(1 + a) T − 35
(1 + a) T − 80
TYP.
MAX.
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
0
ns
0
ns
0
ns
(2.5 + a + n) T − 37 ns
(2.5 + a + n) T − 52 ns
(2.5 + a + n) T − 120 ns
(2 + n) T − 35
ns
(2 + n) T − 50
ns
(2 + n) T − 80
ns
(1.5 + n) T − 40
ns
(1.5 + n) T − 50
ns
(1.5 + n) 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)
Data Sheet U12376EJ1V0DS00
67