HN27C256AFP-15T Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics

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HN27C256AFP-15T

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

Hitachi -> Renesas Electronics 

HN27C256AP/AFP Series

AC Characteristics (Ta = 25°C ± 5°C, VCC = 6 V ± 0.25 V, VPP = 12.5 V ± 0.5 V)

Test Conditions

• Input pulse levels: 0.45 V to 2.4 V

• Input rise and fall time: ≤ 20 ns

• Reference levels for measuring timing: Inputs; 0.8 V and 2.0 V

Outputs; 0.8 V and 2.0 V

Parameter

Symbol Min

Typ

Max

Unit

Test Conditions

Address setup time

t AS

2

—

—

µs

OE setup time

t OES

2

—

—

µs

Data setup time

t DS

2

—

—

µs

Address hold time

t AH

0

—

—

µs

Data hold time

t DH

2

—

—

µs

VPP setup time

t VPS

2

—

—

µs

VCC setup time

t VCS

2

—

—

µs

CE initial programming pulse width tPW

0.19

0.20

0.21

ms

CE over programming pulse width

t *1

OPW

0.19

—

5.25

ms

Data valid from OE

t OE

0

—

150

ns

OE to output float delay

t *2

DF

—

—

130

ns

Notes: 1. Refer to the Fast High-Reliability Programming Flowchart for tOPW.

2. tDF is defined as the time at which the output achieves the open circuit condition and data is no

longer driven.

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