Specifications

EPSON 7–31
SED1234/35 Series
SED1234/35
Series
(2) System Bus Write Characteristic II (68 series MPU)
*1:
tCYC6 denotes the cycle of the E signal in the CS active state. tCYC6 must be reserved after CS becomes active.
*2: For the rise and fall of an input signal, set a value not exceeding 25 ns.
*3: Every timing is specified on the basis of 20% and 80% of V
SS.
*4: For A0 and CS, the same timing is not required. Input signals so that A0 and CS may satisfy t
AW6 and tAH6
respectively.
tCYC6
tAW6 tEW
tAH6
tDS6 tDH6
E
A0, CS
D0 to D7
[VSS = –3.6 V to –2.4 V, Ta = –30 to 85°C unless otherwise specified]
Item Signal Symbol
Measuring
Min. Max. Unit
condition
System cycle time A0, CS t
CYC6 VSS = –3.0 500 ns
–2.7 550
–2.4 650
Address setup time t
AW6 60
Address hold time t
AH6 30 ns
Data setup time D0 ~ D7 t
DS6 100 ns
Data hold time t
DH6 50 ns
Enable pulse width E t
EW VSS = –3.0 100 ns
–2.7 120
–2.4 150