MCM8A10SG15 View Datasheet(PDF) - Motorola => Freescale
Part Name
Description
Manufacturer
MCM8A10SG15 Datasheet PDF : 8 Pages
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AC OPERATING CONDITIONS AND CHARACTERISTICS
(VCC = 5.0 V ± 5%, TA = 0 to + 70°C, Unless Otherwise Noted)
Input Pulse Levels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 3.0 V
Input Rise/Fall Time . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 ns
Input Timing Measurement Reference Level . . . . . . . . . . . . . . . 1.5 V
Output Timing Measurement Reference Level . . . . . . . . . . . . . 1.5 V
Output Load . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . See Figure 1a
READ CYCLE TIMING (See Notes 1 and 2)
MCM8A10–15
Parameter
Symbol
Min
Max
Unit Notes
Read Cycle Time
tAVAV
15
—
ns
2, 3
Address Access Time
tAVQV
—
15
ns
Enable Access Time
tELQV
—
15
ns
4
Output Hold from Address Change
tAXQX
5
—
ns
Enable Low to Output Active
tELQX
5
—
ns 5, 6, 7
Enable High to Output High–Z
tEHQZ
0
6
ns 5, 6, 7
NOTES:
1. W is high for read cycle.
2. Product sensitivities to noise require proper grounding and decoupling of power supplies as well as minimization or elimination of bus
contention conditions during read and write cycles.
3. All timings are referenced from the last valid address to the first transitioning address.
4. Addresses valid prior to or coincident with E going low.
5. At any given voltage and temperature, tEHQZ max is less than tELQX min, both for a given device and from device to device.
6. Transition is measured ± 500 mV from steady–state voltage with load of Figure 1b.
7. This parameter is sampled and not 100% tested.
8. Device is continuously selected (E ≤ VIL).
OUTPUT
Z0 = 50 Ω
(a)
RL = 50 Ω
OUTPUT
255 Ω
+5V
480 Ω
5 pF
VL = 1.5 V
(b)
Figure 1. AC Test Loads
TIMING LIMITS
The table of timing values shows either a
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.
MCM8A10
4
MOTOROLA FAST SRAM
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