IDT70121S datasheet(3/12 Pages) IDT

Part #	IDT70121S

Description	HIGH-SPEED 2K x 9 DUAL-PORT STATIC RAM WITH BUSY & INTERRUPT

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Manufacturer	IDT [Integrated Device Technology]

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6.10

3

IDT 70121/70125S/L

HIGH-SPEED 2K x 9 DUAL-PORT STATIC RAM WITH BUSY & INTERRUPT

COMMERCIAL TEMPERATURE RANGE

DC ELECTRICAL CHARACTERISTICS OVER THE

OPERATING TEMPERATURE AND SUPPLY VOLTAGE RANGE(1,4) (VCC = 5V

± 10%)

70121X25

70121X35

70121X45

70121X55

Test

70125X25

70125X35

70125X45

70125X55

Symbol

Parameter

Condition

Version

Typ. Max. Typ. Max. Typ. Max. Typ. Max. Unit

ICC

Dynamic Operating

CE = VIL,Outputs Open,

Com’l.

S

125

260

125

250

125

245

125

240

mA

Current (Both Ports

f = fMAX

(2)

L

125

220

125

210

125

205

125

200

Active)

ISB1

Standby Current

CE"A" and CE"B" = VIH,

Com’l.

S

30

65

30

65

30

65

30

65

mA

(Both Ports—TTL

f = fMAX

(2)

L

3045304530453045

Level Inputs)

ISB2

Standby Current

CE"A"=VIL and CE"B"=VIH(5)

Com’l.

S

80

175

80

165

80

160

80

155

mA

(One Port—TTL

Active Port Outputs Open,

L

80

145

80

135

80

130

80

125

Level Inputs)

f = fMAX

(2)

ISB3

Full Standby

CE"A" and CE"B" ≥ VCC – 0.2V,

Com’l.

S

1.0

15

1.0

15

1.0

15

1.0

15

mA

Current (Both Ports

VIN

≥ VCC – 0.2V

L

0.2

5

0.2

5

0.2

5

0.2

5

CMOS Level Inputs)

or VIN

≤ 0.2V, f = 0(3)

ISB4

Full Standby

CE"A"<0.2V and CE"B">VCC-0.2V(5) Com’l. S

70

170

70

160

70

155

70

150

mA

Current (One Port

VIN

≥ VCC – 0.2V or

L

70

140

70

130

70

125

70

120

CMOS Level Inputs)

VIN

≤ 0.2V, Active Port

Outputs Open, f = fMAX

(2)

NOTES:

2654 tbl 05

1. “X” in part numbers indicates power rating (S or L).

2. At f = fMAX, address and control lines (except Output Enable) are cycling at the maximum frequency read cycle of 1/tRC, and using “AC TEST

CONDITIONS” of input levels of GND to 3V.

3. f = 0 means no address or control lines change. Applies only to inputs at CMOS level standby.

4. Vcc=5V, TA=+25

°C for Typical values, and they are not production tested.

5. Port "A" may be either left or right port. Port "B" is opposite from port "A".

DC ELECTRICAL CHARACTERISTICS OVER THE

OPERATING TEMPERATURE AND SUPPLY VOLTAGE RANGE (VCC = 5.0V

± 10%)

70121S

70121L

70125S

70125L

Symbol

Parameter

Test Condition

Min.

Max.

Min.

Max. Unit

|ILI|

Input Leakage Current

(5)

VCC = 5.5V, VIN = 0V to VCC

—10

—

5

µA

|ILO|

Output Leakage Current

(5)

VCC = 5.5V,

CE = VIH

—10

—

5

µA

VOUT = 0V to VCC

VOL

Output Low Voltage

IOL = 4mA

—

0.4

—

0.4

V

VOH

Output High Voltage

IOH = –4mA

2.4

—

2.4

—

V

2654 tbl 04

NOTE:

1. At Vcc < 2.0V leakages are undefined.

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