CY7C1460AV25
CY7C1462AV25
CY7C1464AV25
Document #: 38-05354 Rev. *D
Page 13 of 27
2.5V TAP AC Test Conditions
Input pulse levels ............................................... V
SS
to 2.5V
Input rise and fall time .................................................... 1 ns
Input timing reference levels .........................................1.25V
Output reference levels.................................................1.25V
Test load termination supply voltage .............................1.25V
2.5V TAP AC Output Load Equivalent
1.8V TAP AC Test Conditions
Input pulse levels..................................... 0.2V to V
DDQ
– 0.2
Input rise and fall time .....................................................1 ns
Input timing reference levels........................................... 0.9V
Output reference levels .................................................. 0.9V
Test load termination supply voltage .............................. 0.9V
1.8V TAP AC Output Load Equivalent
TDO
1.25V
20pF
Z = 50
Ω
O
50
Ω
TDO
0.9V
20pF
Z = 50
Ω
O
50
Ω
TAP DC Electrical Characteristics And Operating Conditions
(0°C < TA < +70°C; V
DD
= 2.5V ±0.125V unless otherwise noted)
[11]
Parameter
Description
Test Conditions
Min.
Max.
Unit
V
OH1
Output HIGH Voltage
I
OH
= –1.0 mA
V
DDQ
= 2.5V
1.7
V
V
OH2
Output HIGH Voltage
I
OH
= –100
µ
A
V
DDQ
= 2.5V
2.1
V
V
DDQ
= 1.8V
1.6
V
V
OL1
Output LOW Voltage
I
OL
= 1.0 mA
V
DDQ
= 2.5V
0.4
V
V
OL2
Output LOW Voltage
I
OL
= 100
µ
A
V
DDQ
= 2.5V
0.2
V
V
DDQ
= 1.8V
0.2
V
V
IH
Input HIGH Voltage
V
DDQ
= 2.5V
1.7
V
DD
+ 0.3
V
V
DDQ
= 1.8V
1.26
V
DD
+ 0.3
V
V
IL
Input LOW Voltage
V
DDQ
= 2.5V
–0.3
0.7
V
V
DDQ
= 1.8V
–0.3
0.36
V
I
X
Input Load Current
GND
≤
V
I
≤
V
DDQ
–5
5
µ
A
Identification Register Definitions
Instruction Field
CY7C1460AV25
(1M ×36)
CY7C1462AV25
(2M ×18)
CY7C1464AV25
(512K ×72)
Description
Revision Number (31:29)
000
000
000
Describes the version number
Device Depth (28:24)
01011
01011
01011
Reserved for Internal Use
Architecture/Memory Type(23:18)
001000
001000
001000
Defines memory type and archi-
tecture
Bus Width/Density(17:12)
100111
010111
110111
Defines width and density
Cypress JEDEC ID Code (11:1)
00000110100
00000110100
00000110100
Allows unique identification of
SRAM vendor
ID Register Presence Indicator (0)
1
1
1
Indicates the presence of an ID
register
Note:
11. All voltages referenced to V
SS
(GND).
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