UPD43256BGW-B12-9JL NEC [NEC], UPD43256BGW-B12-9JL Datasheet - Page 10

• Manufacturer Part Number: UPD43256BGW-B12-9JL
• Description: 256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT
• Manufacturer: NEC [NEC]

AC Characteristics (Recommended Operating Conditions Unless Otherwise Noted)
AC Test Conditions
10
[ PD43256B-70L, PD43256B-85L, PD43256B-70LL, PD43256B-85LL ]
[ PD43256B-A85, PD43256B-A10, PD43256B-A12, PD43256B-B10, PD43256B-B12, PD43256B-B15 ]
2.2 V
0.8 V
Input Waveform (Rise and Fall Time
Output Waveform
Output Load
Input Waveform (Rise and Fall Time
Output Waveform
Output Load
AC characteristics should be measured with the following output load conditions.
AC characteristics should be measured with the following output load conditions.
2.2 V
0.5 V
I/O (Output)
Remark C
t
1TTL + 100 pF
AA
, t
(t
L
ACS
AA
990
includes capacitance of the probe and jig, and stray capacitance.
, t
, t
Figure 1
ACS
OE
, t
, t
OH
1.5 V
1.5 V
OE
1.5 V
1.5 V
, t
OH
)
+5 V
Data Sheet M10770EJCV0DS00
5 ns)
5 ns)
1.8 k
100 pF
C
L
Test points
Test points
Test points
Test points
I/O (Output)
t
CHZ
(t
, t
CHZ
CLZ
, t
1TTL + 5 pF
, t
CLZ
OHZ
990
, t
1.5 V
, t
1.5 V
Figure 2
OHZ
1.5 V
OLZ
1.5 V
, t
, t
WHZ
OLZ
, t
, t
OW
WHZ
+5 V
, t
OW
1.8 k
)
5 pF
C
PD43256B
L