IDT71028 データシートの表示（PDF） - Integrated Device Technology

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IDT71028

CMOS Static RAM 1 Meg (256K x 4-Bit)

Integrated Device Technology 

IDT71028 CMOS Static RAM

1 Meg (256K x 4-Bit)

DC Electrical Characteristics

(VCC = 5.0V ± 10%, Commercial and Industrial Temperature Ranges)

Commercial and Industrial Temperature Ranges

IDT71028

Symbol

|ILI|

|ILO|

VOL

VOH

Parameter

Input Leakage Current

Output Leakage Current

Output Low Voltage

Output High Voltage

Test Condition

VCC = Max., VIN = GND to VCC

VCC = Max., CS = VIH, VOUT = GND to VCC

IOL = 8mA, VCC = Min.

IOH = –4mA, VCC = Min.

Min.

Max. Unit

___

5

µA

___

5

µA

___

0.4

V

2.4

___

V

2966 tbl 06

DC Electrical Characteristics(1)

(VCC = 5.0V ± 10%, VLC = 0.2V, VHC = VCC – 0.2V)

71028S12

Symbol

Parameters

Com'l.

Ind.

ICC

Dynamic Operating Current,

CS ≤ VIL, Outputs Open,

VCC = Max., f = fMAX(2)

155

170

ISB

Standby Power Supply Current (TTL Level)

CS ≥ VIH, Outputs Open,

VCC = Max., f=fMAX(2)

40

40

ISB1 Full Standby Power Supply Current

(CMOS Level), CS ≥ VHC, Outputs Open,

VCC = Max., f = 0(2), VIN ≤ VLC or VIN ≥ VHC

10

10

NOTES:

1. All values are maximum guaranteed values.

2. fMAX = 1/tRC (all address inputs are cycling at fMAX); f = 0 means no address input lines are changing.

71028S15

Com'l.

Ind.

150

165

40

40

10

10

71028S20

Com'l.

Ind.

145

160

40

40

10

10

Unit

mA

mA

mA

2966 tbl 07

AC Test Conditions

Input Pulse Levels

Input Rise/Fall Times

Input Timing Reference Levels

Output Reference Levels

AC Test Load

GND to 3.0V

3ns

1.5V

1.5V

See Figures 1 and 2

2966 tbl 08

AC Test Loads

5V

DATA OUT

30pF

480Ω

255Ω

2966 drw 03

Figure 1. AC Test Load

6.432

DATA OUT

5pF*

5V

480Ω

255Ω

2966 drw 04

*Including jig and scope capacitance.

Figure 2. AC Test Load

(for tCLZ, tOLZ, tCHZ, tOHZ, tOW, and tWHZ)

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