HN27C4000G 查看數據表（PDF） - Hitachi -> Renesas Electronics

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HN27C4000G

524288-Word ×8-Bit/262144-Word ×16-Bit CMOS UV Erasable and Programmable ROM

Hitachi -> Renesas Electronics 

HN27C4000G Series

AC Characteristics (VCC = 6.25 V ± 0.25 V, VPP = 12.5 V ± 0.3 V, Ta = 25°C ± 5°C)

Test Conditions

• Input pulse levels: 0.45 to 2.4 V

• Input rise and fall time: ≤ 20 ns

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

Outputs; 0.8 V, 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

OE high to output float delay

t *1

DF

0

—

130

ns

VPP setup time

t VPS

2

—

—

µs

VCC setup time

t VCS

2

—

—

µs

CE initial programming pulse width tPW

47.5

50.0

52.5

µs

CE setup time

t CES

2

—

—

µs

Data valid from OE

t OE

0

—

150

ns

CE pulse width during data latch tLW

1

—

—

µs

OE = VH setup time

t OHS

2

—

—

µs

OE = VH hold time

t OHH

2

—

—

µs

VPP hold time*2

t VRS

1

—

—

µs

Notes: 1. tDF is defined as the time at which the output achieves the open circuit condition and data is no

longer driven.

2. Page program mode will be reset when VPP is set to VCC or less.

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