LH5164ASH View Datasheet(PDF) - Sharp Electronics
Part Name
Description
Manufacturer
LH5164ASH Datasheet PDF : 10 Pages
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LH5164ASH
CMOS 64K (8K × 8) Static RAM
AC CHARACTERISTICS
(1) READ CYCLE (TA = -40 to +85°C, VCC = 2.5 to 5.5 V)
PARAMETER
SYMBOL MIN.
Read cycle time
tRC
500
Address access time
tAA
Chip enable
access time
(CE1)
(CE2)
tACE1
tACE2
Output enable access time
tOE
Output hold time
tOH
10
Chip enable to
output in Low-Z
(CE1)
(CE2)
tLZ1
20
tLZ2
20
Output enable to output in Low-Z
tOLZ
10
Chip enable to
output in High-Z
(CE1)
(CE2)
tHZ1
0
tHZ2
0
Output disable to output in High-Z
tOHZ
0
MAX.
500
500
500
200
60
60
40
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
(2) WRITE CYCLE (TA = -40 to +85°C, VCC = 2.5 to 5.5 V)
PARAMETER
SYMBOL
MIN.
Write cycle time
tWC
500
Chip enable to end of write
tCW
250
Address valid to end of write
tAW
250
Address setup time
tAS
100
Write pulse width
tWP
150
Write recovery time
tWR
50
Data valid to end of write
tDW
100
Data hold time
tDH
0
Output active from end of write
tOW
20
WE to output in High-Z
tWZ
0
OE to output in High-Z
tOHZ
0
NOTE:
1. Active output to high-impedance and high-impedance to output
active tests specified for a ±200 mV transition
from steady state levels into the test load.
MAX.
60
40
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
AC TEST CONDITIONS
PARAMETER
MODE
Input voltage amplitude
0 to VCC
Input rise/fall time
10 ns
Timing reference level
1.5 V
Output load conditions
CL (100 pF)
NOTE:
1. Includes scope and jig capacitance.
NOTE
1
CAPACITANCE (TA = 25°C, f = 1MHz)
PARAMETER
SYMBOL
CONDITIONS
MIN.
TYP.
Input capacitance
CIN
VIN = 0 V
Input/output capacitance
CI/O
VI/O = 0 V
NOTE:
This parameter is sampled and not production tested.
MAX.
7
10
UNIT
pF
pF
4
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