MCM6323A

4

MOTOROLA FAST SRAM

AC OPERATING CONDITIONS AND CHARACTERISTICS

(VDD = 3.3 V ± 0.3 V, TA = 0 to +70°C, Unless Otherwise Noted)

(TA = – 40 to + 85°C for Industrial Temperature Offering)

Logic Input Timing Measurement Reference Level

1.50 V

. . . . . . . .

Logic Input Pulse Levels

0 to 3.0 V

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Input Rise/Fall Time

2 ns

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Output Timing Reference Level

1.50 V

. . . . . . . . . . . . . . . . . . . . . . . . .

Output Load

See Figure 1

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

P

Sb l

MCM6323A–10

MCM6323A–12

MCM6323A–15

Ui

N

Parameter

Symbol

Min

Max

Min

Max

Min

Max

Unit

Notes

Read Cycle Time

tAVAV

10

—

12

—

15

—

ns

5

Address Access Time

tAVQV

—

10

—

12

—

15

ns

Enable Access Time

tELQV

—

10

—

12

—

15

ns

Output Enable Access Time

tGLQV

—

4

—

5

—

6

ns

6

Output Hold from Address Change

tAXQX

3

—

3

—

3

—

ns

Enable Low to Output Active

tELQX

3

—

3

—

3

—

ns

6, 7, 8

Output Enable Low to Output Active

tGLQX

0

—

0

—

0

—

ns

6, 7, 8

Enable High to Output High–Z

tEHQZ

—

4

—

5

—

6

ns

6, 7, 8

Output Enable High to Output High–Z

tGHQZ

—

4

—

5

—

6

ns

6, 7, 8

Byte Enable Access Time

tBLQV

—

4

—

5

—

6

ns

Byte Enable Low to Output Active

tBLQX

0

—

0

—

0

—

ns

6, 7, 8

Byte High to Output High–Z

tBHQZ

0

5

0

5

0

5

ns

6, 7, 8

NOTES:

1. W is high for read cycle.

2. For common I/O applications, minimization, or elimination of bus contention conditions is necessary during read and write cycles.

3. Device is continuously selected (E = VIL, G = VIL, and LB and/or UB = VIL).

4. Addresses valid prior to or coincident with E going low.

5. All read cycle timings are referenced from the last valid address to the first transitioning address.

6. Transition is measured 200 mV from steady–state voltage.

7. At any given voltage and temperature, tEHQZ (max) < tELQX (min), and tGHQZ (max) < tGLQX (min), both for a given device and from

device to device.

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