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AM27X256-90PI 数据表(PDF) 8 Page - Advanced Micro Devices

部件名 AM27X256-90PI
功能描述  256 Kilobit (32 K x 8-Bit) CMOS ExpressROM Device
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制造商  AMD [Advanced Micro Devices]
网页  http://www.amd.com
标志 AMD - Advanced Micro Devices

AM27X256-90PI 数据表(HTML) 8 Page - Advanced Micro Devices

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Am27X256
AC CHARACTERISTICS
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
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
Notes:
1. This parameter is only sampled and not 100% tested.
2. TA = +25°C, f = 1 MHz.
Parameter Symbols
Description
Test Setup
Am27X256
Unit
JEDEC
Standard
-55
-70
-90
-120
-150
-200
-255
tAVQV
tACC
Address to Output Delay
CE#,
OE# = VIL
Max
55
70
90
120
150
200
250
ns
tELQV
tCE
Chip Enable to Output Delay
OE# = VIL Max
55
70
90
120
150
200
250
ns
tGLQV
tOE
Output Enable to Output
Delay
CE# = VIL Max
35
404050
505050
ns
tEHQZ
tGHQZ
tDF
(Note 2)
Chip Enable High or Output
Enable Highto Output High Z,
Whichever Occurs First
Max
25
252530
303030
ns
tAXQX
tOH
Output Hold Time from
Addresses, CE# or OE#,
Whichever Occurs First
Min
000
000
0
ns
Addresses
CE#
OE#
Output
12082F-9
Addresses Valid
High Z
High Z
tCE
Valid Output
2.4
0.45
2.0
0.8
2.0
0.8
tACC
(Note 1)
tOE
tDF (Note 2)
tOH
Parameter
Symbol
Parameter Description
Test Conditions
PD 028
PL 032
Unit
Typ
Max
Typ
Max
CIN
Input Capacitance
VIN = 0
6
10
8
12
pF
COUT
Output Capacitance
VOUT = 0
8
10
8
12
pF


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