CAT28C512 查看數據表（PDF） - Catalyst Semiconductor => Onsemi
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CAT28C512 Datasheet PDF : 10 Pages
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CAT28C512/513
Advanced
MODE SELECTION
Mode
CE
WE
OE
I/O
Power
Read
L
H
L
DOUT
ACTIVE
Byte Write (WE Controlled)
L
H
DIN
ACTIVE
Byte Write (CE Controlled)
L
H
DIN
ACTIVE
Standby, and Write Inhibit
H
X
X
High-Z
STANDBY
Read and Write Inhibit
X
H
H
High-Z
ACTIVE
CAPACITANCE TA = 25°C, f = 1.0 MHz, VCC = 5V
Symbol
Test
CI/O(1)
Input/Output Capacitance
CIN(1)
Input Capacitance
Max.
10
6
Units
pF
pF
Conditions
VI/O = 0V
VIN = 0V
A.C. CHARACTERISTICS, Read Cycle
VCC=5V + 10%, Unless otherwise specified
28C512/513-12 28C512/513-15
Symbol Parameter
Min. Max. Min. Max. Units
tRC
Read Cycle Time
tCE
CE Access Time
120
150
ns
120
150 ns
tAA
Address Access Time
120
tOE
OE Access Time
50
tLZ(1)
CE Low to Active Output
0
tOLZ(1) OE Low to Active Output
0
tHZ(1)(2) CE High to High-Z Output
50
tOHZ(1)(2) OE High to High-Z Output
50
tOH(1)
Output Hold from Address Change 0
150 ns
70 ns
0
ns
0
ns
50 ns
50 ns
0
ns
Power-Up Timing
Symbol
tPUR (1)
tPUW (2)
Parameter
Power-up to Read Operation
Power-up to Write Operation
Min.
Max
100
5
10
Units
µs
ms
Note:
(1) This parameter is tested initially and after a design or process change that affects the parameter.
(2) Output floating (High-Z) is defined as the state when the external data line is no longer driven by the output buffer.
Doc. No. 25074-00 2/98
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