AMD27C256 Datasheet, PDF (11/12 Pages) Advanced Micro Devices – 256 Kilobit (32,768 x 8-Bit) CMOS EPROM

AMD
SWITCHING TEST CIRCUIT
Device
Under
Test
CL
6.2 kΩ
2.7 kΩ
+5.0 V
Diodes = IN3064
or Equivalent
CL = 100 pF including jig capacitance (30 pF for -55, -70)
SWITCHING TEST WAVEFORM
08007H-8
2.4 V
0.45 V
2.0 V
0.8 V
Input
Test Points
2.0 V
0.8 V
Output
AC Testing: Inputs are driven at 2.4 V for a logic “1”
and 0.45 V for a logic “0”. Input pulse
rise and fall times are ≤ 20 ns.
3V
1.5 V
Test Points
1.5 V
0V
Input
Output
08007H-9
AC Testing: Inputs are driven at 3.0 V for a logic “1”
and 0 V for a logic “0”. Input pulse rise and
fall times are ≤ 20 ns for -55 and -70.
2-42
Am27C256