upd43256b Renesas Electronics Corporation., upd43256b Datasheet - Page 11

• Manufacturer Part Number: upd43256b
• Description: 256k-bit Cmos Static Ram 32k-word By 8-bit
• Manufacturer: Renesas Electronics Corporation.

AC Characteristics (Recommended Operating Conditions Unless Otherwise Noted)
AC Test Conditions
[
[
2.2 V
0.8 V
μ
μ
Input Waveform (Rise and Fall Time ≤ 5 ns)
Output Waveform
Output Load
Input Waveform (Rise and Fall Time ≤ 5 ns)
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.
PD43256B-70L,
PD43256B-A85,
2.2 V
0.5 V
I/O (Output)
Remark C
μ
μ
t
1TTL + 100 pF
AA
PD43256B-85L,
PD43256B-A10,
, t
(t
L
ACS
AA
990 Ω
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
μ
μ
PD43256B-70LL,
)
+5 V
PD43256B-A12,
1.8 kΩ
Data Sheet M10770EJEV0DS
100 pF
C
L
Test points
Test points
Test points
Test points
μ
μ
PD43256B-B10,
PD43256B-85LL ]
I/O (Output)
t
CHZ
(t
, t
CHZ
CLZ
, t
1TTL + 5 pF
, t
CLZ
OHZ
990 Ω
, t
μ
1.5 V
, t
1.5 V
Figure 2
PD43256B-B12,
OHZ
1.5 V
OLZ
1.5 V
, t
, t
WHZ
OLZ
, t
, t
OW
WHZ
+5 V
, t
OW
μ
1.8 kΩ
)
PD43256B-B15 ]
5 pF
C
μ
L
PD43256B
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