MT55L256L36P datasheet(20/30 Pages) MICRON

部件名	MT55L256L36P

功能描述	8Mb ZBT SRAM

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制造商	MICRON [Micron Technology]

网页	http://www.micron.com

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8Mb: 512K x 18, 256K x 32/36 Pipelined ZBT SRAM

Micron Technology, Inc., reserves the right to change products or specifications without notice.

MT55L512L18P_2.p65 – Rev. 6/01

8Mb: 512K x 18, 256K x 32/36

PIPELINED ZBT SRAM

2.5V I/O DC ELECTRICAL CHARACTERISTICS AND OPERATING CONDITIONS

(0°C

≤ T

A ≤ +70°C; VDD = +3.3V ±0.165V; VDDQ = +2.5V +0.4V/-0.125V unless otherwise noted)

DESCRIPTION

CONDITIONS

SYMBOL

MIN

MAX

UNITS

NOTES

Input High (Logic 1) Voltage

Data bus (DQx)

VIHQ

1.7

VDDQ + 0.3

V

1, 2

Inputs

VIH

1.7

VDD + 0.3

V

1, 2

Input Low (Logic 0) Voltage

VIL

-0.3

0.7

V

1, 2

Input Leakage Current

0V

≤ VIN ≤ VDD

ILI

-1.0

1.0

µA

3

Output Leakage Current

Output(s) disabled,

ILO

-1.0

1.0

µA

0V

≤ VIN ≤ VDDQ (DQx)

Output High Voltage

IOH = -2.0mA

VOH

1.7

–

V1

IOH = -1.0mA

VOH

2.0

–

V1

Output Low Voltage

IOL = 2.0mA

VOL

–

0.7

V

1

IOL = 1.0mA

VOL

–

0.4

V

1

Supply Voltage

VDD

3.135

3.465

V

1

Isolated Output Buffer Supply

VDDQ

2.375

2.9

V

1

NOTE: 1. All voltages referenced to VSS (GND).

2. Overshoot:

VIH

≤ +4.6V for t ≤ tKHKH/2 for I ≤ 20mA

Undershoot:

VIL

≥ -0.7V for t ≤ tKHKH/2 for I ≤ 20mA

Power-up:

VIH

≤ +3.465V and VDD ≤ +3.135V for t ≤ 200ms

3. MODE pin has an internal pull-up, and input leakage = ±10µA.

4. This parameter is sampled.

5. Preliminary package data.

TQFP CAPACITANCE

DESCRIPTION

CONDITIONS

SYMBOL

TYP

MAX

UNITS

NOTES

Control Input Capacitance

TA = +25°C; f = 1 MHz

CI

34

pF

4

Input/Output Capacitance (DQ)

VDD = +3.3V

CO

45

pF

4

Address Capacitance

CA

3

3.5

pF

4

Clock Capacitance

CCK

3

3.5

pF

4

FBGA CAPACITANCE

DESCRIPTION

CONDITIONS

SYMBOL

TYP

MAX

UNITS

NOTES

Address/Control Input Capacitance

CI

2.5

3.5

p F

4, 5

Output Capacitance (Q)

T

A = 25°C; f = 1 MHz

CO

4

5

p F

4, 5

Clock Capacitance

CCK

2.5

3.5

p F

4, 5

BGA CAPACITANCE

DESCRIPTION

CONDITIONS

SYMBOL

TYP

MAX

UNITS

NOTES

Address/Control Input Capacitance

T

A = +25°C; f = 1 MHz

CI

47

pF

4

Input/Output Capacitance (DQ)

VDD = 3.3V

CO

4.5

5.5

pF

4

Address Capacitance

CA

47

pF

4

Clock Capacitance

CCK

4.5

5.5

pF

4

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