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AM27X040 Datasheet, PDF (8/10 Pages) Advanced Micro Devices – 4 Megabit (512 K x 8-Bit) CMOS ExpressROM Device
AC CHARACTERISTICS
Parameter Symbols
JEDEC Standard
Description
tAVQV
tELQV
tGLQV
tEHQZ
tGHQZ
tAXQX
tACC Address to Output Delay
tCE
tOE
tDF
(Note 2)
tOH
Chip Enable to Output Delay
Output Enable to Output Delay
Chip Enable High or Output
Enable High to Output High Z,
Whichever Occurs First
Output Hold Time from
Addresses, CE# or OE#,
Whichever Occurs First
Test Setup
CE#,
OE# = VIL
Max
OE# = VIL Max
CE# = VIL Max
Max
Min
Am27X040
-90 -120 -150 -200 Unit
100 120 150 200
ns
100 120 150 200
ns
40
50
55
60
ns
30
30
30
40
ns
0
0
0
0
ns
Caution: Do not remove the device from (or insert it into) a socket or board that has VPP or VCC applied.
Notes:
1. VCC must be applied simultaneously or before VPP, and removed simultaneously or after VPP.
2. This parameter is sampled and not 100% tested.
3. Switching characteristics are over operating range, unless otherwise specified.
4. See Figure 3 and Table 1 for test specifications.
SWITCHING WAVEFORMS
2.4
Addresses
0.45
2.0
0.8
Addresses Valid
2.0
0.8
CE#
tCE
OE#
Output
High Z
tOE
tACC
(Note 1)
tOH
Valid Output
tDF (Note 2)
High Z
15654D-9
Notes:
1. OE# may be delayed up to tACC – tOE after the falling edge of the addresses without impact on tACC.
2. tDF is specified from OE# or CE#, whichever occurs first.
PACKAGE CAPACITANCE
Parameter
Symbol
Parameter Description Test Conditions
CIN
Input Capacitance
VIN = 0
COUT
Output Capacitance
VOUT = 0
Notes:
1. This parameter is only sampled and not 100% tested.
2. TA = +25°C, f = 1 MHz.
PD 032
PL 032
Typ
Max
Typ
Max
Unit
10
12
8
10
pF
12
15
9
12
pF
8
Am27X040