cs5954am Cypress Semiconductor Corporation., cs5954am Datasheet - Page 39

• Manufacturer Part Number: cs5954am
• Description: Usb Controller For Nand Flash
• Manufacturer: Cypress Semiconductor Corporation.

9.9
Notes:
Document #: 38-08025 Rev. **
46. 0 wait state cycle.
47. t
tclk
thigh
tlow
trise
tfall
t
t
t
t
t
t
CR
RDH
CDH
RPW
AR
AC
Parameter
[47]
access time should be at 12 + 31ns = 43 ns max. See register 0xC006 description for PCLK information.
AC
[46]
Parameter
means at 0 wait states, with PCLK = 2/3 RCLK, the SRAM access time should be 12 ns max. For a 1-wait state cycle, with PCLK = 2/3 RCLK, the SRAM
CS5954AM SRAM Read Cycle
Address
RD
Din
CS
CS LOW to RD LOW
RD HIGH to data hold
CS HIGH to Data Hold
RD LOW Time
RD LOW to Address Valid
RAM Access to Data Valid
Clock Period (48 MHz)
Clock HIGH Time
Clock LOW Time
Clock Rise Time
Clock Fall Time
Duty Cycle
Description
t
Description
CR
t
AR
ADVANCE
INFORMATION
t
AC
t
RPW
20.0 ns
Min.
–5%
9 ns
9 ns
Data Valid
28 ns
Min.
1 ns
5 ns
3 ns
1 ns
t
Typical
20.8 ns
RDH
t
CDH
Typical
CS5954AM
5.0 ns
5.0 ns
11 ns
11 ns
Max.
+5%
Page 39 of 44
31 ns
12 ns
Max.
3 ns