Cypress CY7C1460AV25, CY7C1462AV25, CY7C1464AV25 2.5V TAP AC Test Conditions, 2.5V TAP AC Output Load Equivalent, 1.8V TAP AC Test Conditions, 1.8V TAP AC Output Load Equivalent, TAP DC Electrical Characteristics And Operating Conditions, Identification Register Definitions

CY7C1460AV25
CY7C1462AV25
CY7C1464AV25
Document #: 38-05354 Rev. *D Page 13 of 27
2.5V TAP AC Test Conditions
Input pulse levels ............................................... VSS 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 VDDQ – 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
T
DO
1.25V
20p
F
Z = 50Ω
O
50Ω
T
DO
0.9V
20p
F
Z = 50Ω
O
50Ω
TAP DC Electrical Characteristics And Operating Conditions
(0°C < TA < +70°C; VDD = 2.5V ±0.125V unless otherwise noted)[11]
Parameter Description Test Conditions Min. Max. Unit
VOH1 Output HIGH Voltage IOH = –1.0 mA VDDQ = 2.5V 1.7 V
VOH2 Output HIGH Voltage IOH = –100 µAV
DDQ = 2.5V 2.1 V
VDDQ = 1.8V 1.6 V
VOL1 Output LOW Voltage IOL = 1.0 mA VDDQ = 2.5V 0.4 V
VOL2 Output LOW Voltage IOL = 100 µAV
DDQ = 2.5V 0.2 V
VDDQ = 1.8V 0.2 V
VIH Input HIGH Voltage VDDQ = 2.5V 1.7 VDD + 0.3 V
VDDQ = 1.8V 1.26 VDD + 0.3 V
VIL Input LOW Voltage VDDQ = 2.5V –0.3 0.7 V
VDDQ = 1.8V –0.3 0.36 V
IXInput Load Current GND ≤ VI ≤ VDDQ –5 5 µA
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 VSS (GND).
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