M27C64A Datasheet, PDF (5/12 Pages) STMicroelectronics – 64 Kbit 8Kb x 8 UV EPROM and OTP EPROM

AC MEASUREMENT CONDITIONS
Input Rise and Fall Times
Input Pulse Voltages
Input and Output Timing Ref.
Voltages
≤ 20ns
0.4V to 2.4V
0.8V to 2.0V
Note that Output Hi-Z is defined as the point where data
is no longer driven.
Figure 3. AC Testing Input Output Waveforms
2.4V
0.4V
2.0V
0.8V
AI00826
M27C64A
Figure 4. AC Testing Load Circuit
1.3V
1N914
DEVICE
UNDER
TEST
3.3kΩ
OUT
CL = 100pF
CL includes JIG capacitance
AI00828
Table 5. Capacitance ⁽¹⁾ (TA = 25 °C, f = 1 MHz )
Symbol
Parameter
Test Condition
C_IN
Input Capacitance
COUT
Output Capacitance
Note: 1. Sampled only, not 100% tested.
V_IN = 0V
VOUT = 0V
Min
Max
Unit
6
pF
12
pF
Figure 5. Read Mode AC Waveforms
A0-A12
E
G
Q0-Q7
VALID
tAVQV
tGLQV
tELQV
tAXQX
VALID
tEHQZ
tGHQZ
Hi-Z
AI00778B
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