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CY7C1304DV25
Document #: 38-05628 Rev. *A
Page 10 of 18
Output Times
tTDOV
TCK Clock LOW to TDO Valid
20
ns
tTDOX
TCK Clock LOW to TDO Invalid
0
ns
TAP Timing and Test Conditions[14]
TAP AC Switching Characteristics Over the Operating Range (continued)[13, 14]
Parameter
Description
Min.
Max.
Unit
(a)
TDO
CL = 20 pF
Z0 = 50Ω
GND
1.25V
Test Clock
Test Mode Select
TCK
TMS
Test Data-In
TDI
Test Data-Out
TDO
tTCYC
tTMSH
tTL
tTH
tTMSS
tTDIS
tTDIH
tTDOX
tTDOV
50
Ω
2.5V
0V
ALL INPUT PULSES
1.25V
Identification Register Definitions
Instruction Field
Value
Description
CY7C1304DV25
Revision Number (31:29)
000
Version number.
Cypress Device ID (28:12)
01011010011010110
Defines the type of SRAM.
Cypress JEDEC ID (11:1)
00000110100
Allows unique identification of SRAM vendor.
ID Register Presence (0)
1
Indicate the presence of an ID register.
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