Specifications

SED1230
Series
EPSON 6–35
SED1230 Series
TIMING CHARACTERISTICS
(1) System Bus Write Characteristic I (80 series MPU)
*1: For the rise and fall of an input signal, set a value not exceeding 25 ns.
*2: Every timing is specified on the basis of 20% and 80% of V
SS.
*3: For A0 and CS, the same time is not required. Input signals so that A0 and CS may satisfy t
AW8 and tAH8 respectively.
Item Signal Symbol
Measuring
Min. Max. Unit
condition
Address hold time A0, CS t
AH8 30 ns
Address setup time t
AW8 60 ns
System cycle time WR t
CYC8 VSS = –3.0 500 ns
–2.7 550
–2.4 650
Control pulse width (WR) t
CC VSS = –3.0 100 ns
–2.7 120
–2.4 150
Data setup time D0 ~ D7 t
DS8 100 ns
Data hold time t
DH8 50 ns
[VSS = –3.6 V to –2.4 V, Ta = –30 to 85°C unless otherwise specified]
A0, CS
WR
D0 to D7
t AH8
t AW8 t CYC8
t CC
t DS8 t DH8