HM62256BLT-8 datasheet(6/20 Pages) HITACHI

Part #	HM62256BLT-8

Description	256k SRAM (32-kword x 8-bit)

Download	20 Pages

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Manufacturer	HITACHI [Hitachi Semiconductor]

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

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HM62256B Series

6

DC Characteristics (Ta = 0 to +70

°C, V

CC = 5 V ± 10%, VSS = 0 V)

Parameter

Symbol Min

Typ*

1

Max

Unit

Test conditions

Input leakage current

|I

LI|—

—

1

µA

Vin = V

SS to V CC

Output leakage current

|I

LO|—

—

1

µA

CS = V

IH or OE = VIH or WE = VIL,

V

I/O = VSS to V CC

Operating current

I

CC

—

6

15

mA

CS = V

IL, Others = VIH/VIL,

I

I/O = 0 mA

Average

operating

current

HM62256B-5

I

CC1

—

60

mA

Min cycle, duty = 100%,I

I/O = 0 mA,

CS = V

IL, Others = VIH/VIL

HM62256B-7

I

CC1

—3360

mA

HM62256B-8

I

CC1

—2950

mA

I

CC2

—

5

15

mA

Cycle time = 1

µs, I

I/O = 0 mA,

CS = V

IL, VIH = VCC, VIL = 0

Standby current

I

SB

—

0.3

2

mA

CS = V

IH

I

SB1

—

0.2

100

µA

Vin

≥ 0 V, CS ≥ V

CC – 0.2 V

I

SB1

—

0.2*

2

50*

2

µA

I

SB1

—

0.2*

3

10*

3

µA

Output low voltage

V

OL

—

0.4

V

I

OL = 2.1 mA

Output high voltage

V

OH

2.4

—

V

I

OH = –1.0 mA

Notes: 1. Typical values are at V

CC = 5.0 V, Ta = +25°C and not guaranteed.

2. This characteristic is guaranteed only for L-SL version.

3. This characteristic is guaranteed only for L-UL version.

Capacitance (Ta = 25

°C, f = 1.0 MHz)

Parameter

Symbol

Min

Typ

Max

Unit

Test Conditions

Input capacitance*

1

Cin

—

8

pF

Vin = 0 V

Input/output capacitance*

1

C

I/O

—

10

pF

V

I/O = 0 V

Note:

1. This parameter is sampled and not 100% tested.

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HM62256BLT-8 Datasheet(PDF) 6 Page - Hitachi Semiconductor

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