UPD43256BGU-70LL-A Просмотр технического описания (PDF) - NEC => Renesas Technology

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UPD43256BGU-70LL-A

256K-BIT CMOS STATIC RAM 32K-WORD BY 8-BIT 85ns

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

Data Sheet M10770EJEV0DS

11

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