HN27C256HFP Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics

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HN27C256HFP

32768-word × 8-bit CMOS One Time Electrically Programmable ROM

Hitachi -> Renesas Electronics 

HN27C256HP/HFP Series

AC Characteristics (Ta = 0 to +70°C, VCC = 5 V ± 10%, VPP = VCC)

Test Conditions

• Input pulse levels: 0.45 V to 2.4 V

• Input rise and fall time: ≤ 10 ns

• Output load: 1TTL gate + 100 pF

• Reference levels for measuring timing: Inputs; 1.5 V

Outputs; 1.5 V

HN27C256HP-85 HN27C256HP-10

HN27C256HFP-85T HN27C256HFP-10T

Parameter

Symbol Min

Max

Min

Max

Unit Test Conditions

Address to output delay tACC

—

85

—

100

ns CE = OE = VIL

CE to output delay

t CE

—

85

—

100

ns OE = VIL

OE to output delay

t OE

—

45

—

55

ns CE = VIL

OE high to output float

t DF

0

30

0

35

ns CE = VIL

Address to output hold

t OH

5

—

5

—

ns CE = OE = VIL

Note: tDF is defined as the time at which the output achieves the open circuit condition and data is no longer

driven.

Read Timing Waveform

Address

CE

Standby Mode

OE

Data Out

Active Mode

tCE

Standby Mode

tOE

tACC

tDF

tOH

Data Out Valid

6

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