D43257B View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

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D43257B

256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT

NEC => Renesas Technology 

AC Characteristics (Recommended Operating Conditions Unless Otherwise Noted)

AC Test Conditions

[ µPD43257B-70L, µPD43257B-85L, µPD43257B-70LL, µPD43257B-85LL ]

Input Waveform (Rise and Fall Time ≤ 5 ns)

2.2 V

0.8 V

1.5 V

Test points

1.5 V

Output Waveform

1.5 V

Test points

1.5 V

µPD43257B

Output Load

AC characteristics with notes should be measured with the output load shown in Figure 1 and Figure 2.

Figure 1

(tAA, tCO1, tCO2, tOH)

+5 V

Figure 2

(tLZ1, tLZ2, tHZ1, tHZ2, tWHZ, tOW)

+5 V

I/O (Output)

990 Ω

1.8 kΩ

100 pF

CL

I/O (Output)

990 Ω

1.8 kΩ

5 pF

CL

Remark CL includes capacitance of the probe and jig, and stray capacitance.

8

Data Sheet M10693EJ7V0DS00

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