AM27X256 Advanced Micro Devices, AM27X256 Datasheet - Page 8

• Manufacturer Part Number: AM27X256
• Description: 256 Kilobit (32 K x 8-Bit) CMOS ExpressROM Device
• Manufacturer: Advanced Micro Devices

AC CHARACTERISTICS
Caution: Do not remove the device from (or insert it into) a socket or board that has V
Notes:
1. V
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
Notes:
1. OE# may be delayed up to t
2. t
PACKAGE CAPACITANCE
Notes:
1. This parameter is only sampled and not 100% tested.
2. T
8
Parameter Symbols
JEDEC
t
t
t
t
t
t
GLQV
EHQZ
GHQZ
AXQX
AVQV
ELQV
DF
Parameter
A
CC
Addresses
Symbol
= +25 C, f = 1 MHz.
C
is specified from OE# or CE#, whichever occurs first.
C
must be applied simultaneously or before V
OUT
Output
IN
OE#
Standard
0.45
CE#
(Note 2)
2.4
t
t
t
ACC
t
t
OH
CE
OE
DF
Input Capacitance
Output Capacitance
Address to Output Delay
Chip Enable to Output Delay
Output Enable to Output
Delay
Chip Enable High or Output
Enable Highto Output High Z,
Whichever Occurs First
Output Hold Time from
Addresses, CE# or OE#,
Whichever Occurs First
Parameter Description
High Z
ACC
Description
– t
OE
2.0
0.8
after the falling edge of the addresses without impact on t
(Note 1)
PP
t
ACC
Test Conditions
V
V
, and removed simultaneously or after V
t
IN
OUT
CE#,
OE# = V
OE# = V
CE# = V
CE
Am27X256
= 0
Test Setup
= 0
t
Addresses Valid
OE
IL
IL
IL
Max
Max
Max
Max
Min
-55
55
55
35
25
0
Valid Output
Typ
-70
70
70
40
25
6
8
0
PD 028
PP
-90
90
90
40
25
0
or V
t
OH
Max
Am27X256
10
10
CC
PP
2.0
0.8
-120 -150 -200 -255
120
120
50
30
.
0
applied.
ACC
Typ
150
150
8
8
50
30
0
.
PL 032
t
DF
(Note 2)
200
200
50
30
0
Max
12
12
250
250
50
30
High Z
0
12082F-9
Unit
pF
pF
Unit
ns
ns
ns
ns
ns