CY7C1470BV25 Datasheet, PDF (16/29 Pages) Cypress Semiconductor – 72-Mbit (2M x 36/4M x 18/1M x 72) Pipelined SRAM with NoBL™ Architecture

CY7C1470BV25
CY7C1472BV25, CY7C1474BV25
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
Figure 5. 2.5V TAP AC Output Load Equivalent
1.25V
TDO
Z_O= 50Ω
50Ω
20pF
TAP DC Electrical Characteristics And Operating Conditions
(0°C < T_A < +70°C; V_DD = 2.5V ±0.125V unless otherwise noted)^[11]
Parameter
V_OH1
V_OH2
V_OL1
V_OL2
V_IH
V_IL
I_X
Description
Output HIGH Voltage
Output HIGH Voltage
Output LOW Voltage
Output LOW Voltage
Input HIGH Voltage
Input LOW Voltage
Input Load Current
Test Conditions
I_OH = –1.0 mA, V_DDQ = 2.5V
I_OH = –100 μA, V_DDQ = 2.5V
I_OL = 1.0 mA, V_DDQ = 2.5V
I_OL = 100 μA, V_DDQ = 2.5V
V_DDQ = 2.5V
V_DDQ = 2.5V
GND ≤ V_I ≤ V_DDQ
Min
Max
Unit
1.7
V
2.1
V
0.4
V
0.2
V
1.7
V_DD + 0.3
V
–0.3
0.7
V
–5
5
μA
Table 6. Identification Register Definitions
Instruction Field
Revision Number (31:29)
Device Depth (28:24)
Architecture/Memory Type(23:18)
Bus Width/Density(17:12)
Cypress JEDEC ID Code (11:1)
ID Register Presence Indicator (0)
CY7C1470BV25
(2M x 36)
000
01011
001000
100100
00000110100
1
CY7C1472BV25
(4M x 18)
000
01011
001000
010100
00000110100
1
CY7C1474BV25
(1M x 72)
Description
000
Describes the version number
01011
Reserved for internal use
001000
Defines memory type and archi-
tecture
110100
Defines width and density
00000110100 Allows unique identification of
SRAM vendor
1
Indicates the presence of an ID
register
Table 7. Scan Register Sizes
Register Name
Instruction
Bypass
ID
Boundary Scan Order–165FBGA
Boundary Scan Order–209BGA
Bit Size (x36)
3
1
32
71
–
Bit Size (x18)
3
1
32
52
–
Bit Size (x72)
3
1
32
–
110
Note
11. All voltages refer to V_SS (GND).
Document #: 001-15032 Rev. *D
Page 16 of 29
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