MCM6726D Motorola, MCM6726D Datasheet - Page 3

• Manufacturer Part Number: MCM6726D
• Description: 128K x 8 Bit Fast Static Random Access Memory
• Manufacturer: Motorola

CAPACITANCE
Input Timing Measurement Reference Level
Input Pulse Levels
Input Rise/Fall Time
READ CYCLE TIMING
NOTES:
MOTOROLA FAST SRAM
OUTPUT
Address Input Capacitance
Control Pin Input Capacitance
Input/Output Capacitance
Read Cycle Time
Address Access Time
Enable Access Time
Output Enable Access Time
Output Hold from Address Change
Enable Low to Output Active
Output Enable Low to Output Active
Enable High to Output High–Z
Output Enable High to Output High–Z
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. All read cycle timings are referenced from the last valid address to the first transitioning address.
4. At any given voltage and temperature, t EHQZ max < t ELQX min, and t GHQZ max < t GLQX min, both for a given device and from device
5. Transition is measured 200 mV from steady–state voltage with load of Figure 1b.
6. This parameter is sampled and not 100% tested.
7. Device is continuously selected (E = V IL , G = V IL ).
8. Addresses valid prior to or coincident with E going low.
to device.
Z 0 = 50
(f = 1.0 MHz, dV = 3.0 V, T A = 25 C, Periodically Sampled Rather Than 100% Tested)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(a)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
(See Notes 1 and 2)
Parameter
Figure 1. AC TEST LOADS
V L = 1.5 V
AC OPERATING CONDITIONS AND CHARACTERISTICS
(V CC = 5.0 V 10%, T A = 0 to +70 C, Unless Otherwise Noted)
R L = 50
Parameter
. . . . . . . . . . . . . . .
OUTPUT
0 to 3.0 V
255
1.5 V
2 ns
(b)
Symbol
t GHQZ
t GLQV
t AXQX
t GLQX
t EHQZ
t AVQV
t ELQV
t ELQX
t AVAV
Output Timing Measurement Reference Level
Output Load
+5 V
480
5 pF
Min
—
—
—
—
—
6726D–8
8
3
3
0
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Max
—
—
—
—
8
8
4
4
4
Symbol
C I/O
C in
C in
Min
minimum or a maximum limit for each param-
eter. Input requirements are specified from
the external system point of view. Thus, ad-
dress setup time is shown as a minimum
since the system must supply at least that
much time. On the other hand, responses
from the memory are specified from the de-
vice point of view. Thus, the access time is
shown as a maximum since the device never
provides data later than that time.
6726D–10
10
—
—
—
—
—
3
3
0
The table of timing values shows either a
Max
10
10
—
—
—
—
5
5
5
Typ
—
—
—
TIMING LIMITS
Min
6726D–12
12
—
—
—
—
—
3
3
0
Max
—
12
12
—
—
—
6
6
6
. . . . . . . . . . . . .
Max
6
6
8
Unit
MCM6726D
ns
ns
ns
ns
ns
ns
ns
ns
ns
See Figure 1a
Notes
4,5,6
4,5,6
4,5,6
4,5,6
Unit
pF
pF
pF
1.5 V
3
3