HM62W16255CTTI12 datasheet(8/17 Pages) HITACHI

Part #	HM62W16255CTTI12

Description	Wide Temperature Range Version 4M High Speed SRAM (256-kword 쨈 16-bit)

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Manufacturer	HITACHI [Hitachi Semiconductor]

Direct Link	http://www.renesas.com/eng

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8 / 17 page

HM62W16255HCI Series

Rev.1, Nov. 2001, page 8 of 17

AC Characteristics

(Ta = –40 to +85°C, V

CC = 3.3 V ± 0.3 V, unless otherwise noted.)

Test Conditions

• Input pulse levels: 3.0 V/0.0 V

• Input rise and fall time: 3 ns

• Input and output timing reference levels: 1.5 V

• Output load: See figures (Including scope and jig)

Read Cycle

HM62W16255HCI

-12

Parameter

Symbol

Min

Max

Unit

Notes

Read cycle time

t

RC

12

—

ns

Address access time

t

AA

—

12

ns

Chip select access time

t

ACS

—

12

ns

Output enable to output valid

t

OE

—

6

ns

Byte select to output valid

t

LB, tUB

—

6

ns

Output hold from address change

t

OH

3

—

ns

Chip select to output in low-Z

t

CLZ

3

—

ns

1

Output enable to output in low-Z

t

OLZ

0

—

ns

1

Byte select to output in low-Z

t

LBLZ, tUBLZ

0

—

ns

1

Chip deselect to output in high-Z

t

CHZ

—

6

ns

1

Output disable to output in high-Z

t

OHZ

—

6

ns

1

Byte deselect to output in high-Z

t

LBHZ, tUBHZ

—

6

ns

1

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