GM76C256C Series
DC CHARACTERISTICS
Vcc = 5V ±10%, TA = 0°C to 70°C (Normal)/-25°C to 85°C (Extended), unless otherwise specified.
Symbol
ILI
ILO
Parameter
Input Leakage Current
Output Leakage Current
Test Condition
Vss < VIN < Vcc
Min. Typ. Max. Unit
-1
-1
-
-
1
1
uA
uA
Vss < VOUT < Vcc, /CS = VIH or
/OE = VIH or /WE = VIL
/CS = VIL, VIN = VIH or VIL,
VIN = VIH or VIL, II/O = 0mA
/CS = VIL, VIN = VIH or VIL,
Min. Duty Cycle = 100%, II/O = 0mA
/CS= VIH
Icc
Operating Power Supply
Current
Average Operating Current
-
-
-
-
-
-
10
70
1
mA
mA
mA
ICC1
ISB
TTL Standby Current
(TTL Inputs)
VIN = VIH or VIL
ISB1
CMOS Standby Current
(CMOS Inputs)
/CS > Vcc - 0.2V,
VIN > Vcc - 0.2V or
VIN < Vss + 0.2V
L
-
-
-
-
-
-
-
-
-
-
-
40
20
60
30
0.4
-
uA
uA
uA
uA
V
LL
LE
LLE
VOL
VOH
Output Low Voltage
Output High Voltage
IOL = 2.1mA
IOH = -1.0mA
2.4
V
Note : Typical values are at Vcc =5.0V, TA = 25°C
AC CHARACTERISTICS(I)
Vcc = 5V ±10%, TA = 0°C to 70°C (Normal) / -25°C to 85°C (Extended) unless otherwise specified.
-55
Max. Min.
-70
Max. Min
-85
Max.
#
Symbol
Parameter
Unit
Min.
READ CYCLE
1
2
3
4
5
6
7
8
9
tRC
tAA
tACS
tOE
tCLZ
tOLZ
tCHZ
tOHZ
tOH
Read Cycle Time
Address Access Time
Chip Select Access Time
Output Enable to Output Valid
Chip Select to Output in Low Z
Output Enable to Output in Low Z
Chip Disable to Output in High Z
Out Disable to Output in High Z
Output Hold from Address Change
55
-
-
-
70
-
-
-
85
-
-
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
55
55
30
-
70
70
35
-
85
85
45
-
-
-
-
10
5
0
0
5
10
5
0
0
5
10
5
0
0
5
-
-
-
20
20
-
30
30
-
30
30
-
WRITE CYCLE
10 tWC
11 tCW
12 tAW
13 tAS
14 tWP
15 tWR
16 tWHZ
17 tDW
18 tDH
19 tOW
Write Cycle Time
55
50
50
0
40
0
0
25
0
-
-
-
-
-
-
20
-
-
-
70
65
65
0
50
0
0
30
0
-
-
-
-
-
-
25
-
-
-
85
75
75
0
60
0
0
40
0
-
-
-
-
-
-
30
-
-
-
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Chip Selection to End of Write
Address Valid to End of Write
Address Set-up Time
Write Pulse Width
Write Recovery Time
Write to Output in High Z
Data to Write Time Overlap
Data Hold from Write Time
Output Active from End of Write
5
5
5
Rev 03 / Apr. 2000
3
HYNIX [ HYNIX SEMICONDUCTOR ]
