UPD43256B-BXX Просмотр технического описания (PDF) - NEC => Renesas Technology

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UPD43256B-BXX

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

NEC => Renesas Technology 

µPD43256B

AC Characteristics (Recommended Operating Conditions Unless Otherwise Noted)

AC Test Conditions

[ µPD43256B-70L, µPD43256B-85L, µPD43256B-70LL, µPD43256B-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

Output Load

AC characteristics should be measured with the following output load conditions.

Figure 1

Figure 2

(tAA, tACS, tOE, tOH)

+5 V

(tCHZ, tCLZ, tOHZ, tOLZ, 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.

[ µPD43256B-A85, µPD43256B-A10, µPD43256B-A12, µPD43256B-B10, µPD43256B-B12, µPD43256B-B15 ]

Input Waveform (Rise and Fall Time ≤ 5 ns)

2.2 V

0.5 V

1.5 V

Test points

1.5 V

Output Waveform

1.5 V

Test points

1.5 V

Output Load

AC characteristics should be measured with the following output load conditions.

tAA, tACS, tOE, tOH

1TTL + 100 pF

tCHZ, tCLZ, tOHZ, tOLZ, tWHZ, tOW

1TTL + 5 pF

10

Data Sheet M10770EJCV0DS00

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