M27C64A
DC and AC parameters
4
DC and AC parameters
This section summarizes the operating and measurement conditions, and the DC and AC
characteristics of the device. The parameters in the DC and AC Characteristic tables that
follow are derived from tests performed under the Measurement Conditions summarized in
the relevant tables. Designers should check that the operating conditions in their circuit
match the measurement conditions when relying on the quoted parameters.
Table 5.
AC Measurement Conditions
(1)
≤
20ns
0.4V to 2.4V
0.8 to 2.0V
Input Rise and Fall Times
Input Pulse Voltages
Input and Output Timing Ref. Voltages
1. Note that Output Hi-Z is defined as the point where data is no longer driven.
Figure 5.
AC Testing Input Output Waveform
2.4V
2.0V
0.8V
AI00826
0.4V
Figure 6.
AC Testing Load Circuit
1.3V
1N914
3.3kΩ
DEVICE
UNDER
TEST
CL = 100pF
OUT
CL includes JIG capacitance
AI00828
Table 6.
Symbol
C
IN
C
OUT
Capacitance
(1)(2)
Parameter
Input Capacitance
Output Capacitance
Test Condition
V
IN
= 0V
V
OUT
= 0V
Min
Max
6
12
Unit
pF
pF
1. Sampled only, not 100% tested.
2. T
A
= 25 °C, f = 1 MHz.
13/22
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