AT27C516 View Datasheet(PDF) - Atmel Corporation
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Description
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AT27C516 Datasheet PDF : 8 Pages
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AC Waveforms for Read Operation (1)
AT27C516
Notes: 1. Timing measurement reference level is 1.5V for -45
and -55 devices. Input AC drive levels are VIL =
0.0V and VIH = 3.0V. Timing measurement
reference levels for all other speed grades are VOL
= 0.8V and VOH = 2.0V. Input AC drive levels are
VIL = 0.45V and VIH = 2.4V.
2. OE may be delayed up to tCE - tOE after the falling
edge of CE without impact on tCE .
3. OE may be delayed up to tACC - tOE after the address is valid
without impact on tACC .
4. This parameter is only sampled and is not 100% tested.
5. Output float is defined as the point when data is no longer driven.
Input Test Waveforms and Measurement Levels
Output Test Load
For -45, -55, and -70
Devices Only:
tR, tF < 5 ns (10% to 90%)
For -85 and -10
Devices Only:
tR, tF < 20 ns (10% to 90%)
Note: CL = 100 pF including jig
capacitance except -45, -55 and -70
devices, where CL = 30 pF.
Pin Capacitance
(f = 1 MHz
(1)
T = 25°C)
Typ
Max
Units
Conditions
CIN
4
10
pF
VIN = 0V
COUT
8
12
pF
VOUT = 0V
Note: 1. Typical values for nominal supply voltage. This parameter is only sampled and is not 100% tested.
3-149
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