6.42

IDT70T35/34L (IDT70T/25/24L)

PRELIMINARY

High-Speed 2.5V 8/4K x 18 (8/4K x 16) Dual-Port Static RAM

Industrial and Commercial Temperature Ranges

9

DC Electrical Characteristics Over the Operating

NOTES:

1.

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

to 3V.

4. f = 0 means no address or control lines change.

70T35/34L20

(70T25/24L20)

Com'l Only

70T35/34L25

(70T25/24L25)

Com'l

& Ind

Symbol

Parameter

Test Condition

Version

Max.

Max.

Unit

Dynamic Operating

Current

(Both Ports Active)

COM'L

L

80

140

70

130

mA

IND

L

____

____

100

160

Standby Current

(Both Ports - TTL

Level Inputs)

(3)

COM'L

L

12

20

7

17

mA

IND

L

____

____

12

25

Standby Current

(One Port - TTL

Level Inputs)

Active Port Outputs Disabled,

COM'L

L

559040

80

mA

IND

L

____

____

55

100

Full Standby Current

(Both Ports -

CMOS Level Inputs)

Both Ports

COM'L

L

0.05

2.5

0.05

2.5

mA

IND

L

____

____

0.2

5.0

Full Standby Current

(One Port -

CMOS Level Inputs)

Active Port Outputs Disabled,

COM'L

L

559040

80

mA

IND

L

____

____

55

100

5639 tbl 09

AC Test Conditions

Figure 1. AC Output Test Load

Input Pulse Levels

Input Rise/Fall Times

Input Timing Reference Levels

Output Reference Levels

Output Load

GND to 2.5V

3ns Max.

1.25V

1.25V

Figure 1

5639 tbl 10

1.25V

50

Ω

50

Ω

5639 drw 06

10pF / 5pF*

(Tester)

,

BUSY

INT

Timing of Power-Up Power-Down

CE

5639 drw 07

50%

50%

,