HM6216255H Series
AC Characteristics
(Ta = 0 to +70°C, V
CC
= 5.0 V
±
10 %, unless otherwise noted.)
Test Conditions
•
Input pulse levels: 3.0 V/0.0 V
•
Input rise and fall time: 3 ns
•
Input and output timing reference levels: 1.5 V
•
Output load: See figures (Including scope and jig)
5V
Dout Zo=50
Ω
RL=50
Ω
1.5 V
Output load (A)
480Ω
Dout
255Ω
5 pF
Output load (B)
(for t
CLZ
, t
OLZ
, t
LBLZ
, t
UBLZ
, t
CHZ
, t
OHZ
,
t
LBHZ
, t
UBHZ
, t
WHZ
, and t
OW
)
Read Cycle
HM6216255H
-10
Parameter
Read cycle time
Address access time
Chip select access time
Output enable to output valid
Byte select to output valid
Output hold from address change
Chip select to output in low-Z
Output enable to output in low-Z
Byte select to output in low-Z
Chip deselect to output in high-Z
Output disable to output in high-Z
Byte deselect to output in high-Z
Symbol
t
RC
t
AA
t
ACS
t
OE
t
LB
, t
UB
t
OH
t
CLZ
t
OLZ
t
LBLZ
, t
UBLZ
t
CHZ
t
OHZ
t
LBHZ
, t
UBHZ
Min
10
—
—
—
—
3
3
0
0
—
—
—
Max
—
10
10
5
5
—
—
—
—
5
5
5
-12
Min
12
—
—
—
—
3
3
0
0
—
—
—
Max
—
12
12
6
6
—
—
—
—
6
6
6
-15
Min
15
—
—
—
—
3
3
0
0
—
—
—
Max
—
15
15
7
7
—
—
—
—
7
7
7
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
1
1
1
1
1
1
Notes
7
HITACHI [ HITACHI SEMICONDUCTOR ]
