BSI
BS62LV1024
AC TEST CONDITIONS
Input Pulse Levels
Input Rise and Fall Times
Input and Output
Timing Reference Level
Vcc/0V
5ns
0.5Vcc
AC TEST LOADS AND WAVEFORMS
3.3V
OUTPUT
1269 Ω
3.3V
OUTPUT
1269 Ω
INCLUDING
JIG AND
SCOPE
100PF
1404 Ω
INCLUDING
JIG AND
SCOPE
5PF
1404 Ω
FIGURE 1A
FIGURE 1B
OUTPUT
THEVENIN EQUIVALENT
667 Ω
1.73V
ALL INPUT PULSES
Vcc
GND
10%
→
90% 90%
←
→
FIGURE 2
10%
← 5ns
KEY TO SWITCHING WAVEFORMS
WAVEFORM
INPUTS
MUST BE
STEADY
MAY CHANGE
FROM H TO L
MAY CHANGE
FROM L TO H
,
DON T CARE:
ANY CHANGE
PERMITTED
DOES NOT
APPLY
OUTPUTS
MUST BE
STEADY
WILL BE
CHANGE
FROM H TO L
WILL BE
CHANGE
FROM L TO H
CHANGE :
STATE
UNKNOWN
CENTER
LINE IS HIGH
IMPEDANCE
”OFF ”STATE
AC ELECTRICAL CHARACTERISTICS ( TA = 0oC to + 70oC, Vcc=3.0V )
READ CYCLE
JEDEC
PARAMETER
NAME
tAVAX
tAVQV
t E1LQV
t E2HOV
tGLQV
t E1LQX
t E2HOX
t
GLQX
t
E1HQZ
t
E2HQZ
tGHQZ
tAXOX
PARAMETER
NAME
t RC
t AA
t ACS1
t ACS2
t OE
t CLZ1
t CLZ2
t
OLZ
t
CHZ1
t
CHZ2
t OHZ
t OH
DESCRIPTION
Read Cycle Time
Address Access Time
Chip Select Access Time
Chip Select Access Time
Output Enable to Output Valid
Chip Select to Output Low Z
Chip Select to Output Low Z
Output Enable to Output in Low Z
Chip Deselect to Output in High Z
Chip Deselect to Output in High Z
Output Disable to Output in High Z
Output Disable to Address Change
(CE1)
(CE2)
(CE1)
(CE2)
(CE1)
(CE2)
BS62LV1024-70
MIN. TYP. MAX.
70
--
--
--
--
70
--
--
70
--
--
70
--
--
50
10
--
--
10
--
--
10
--
--
0
--
40
0
40
0
--
35
10
--
--
UNIT
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
R0201-BS62LV1024
4
Revision 2.2
April 2001