CY7C64714-56PVXC Cypress Semiconductor Corp, CY7C64714-56PVXC Datasheet - Page 31

• Manufacturer Part Number: CY7C64714-56PVXC
• Description: IC MCU USB EZ FX1 16KB 56-SSOP
• Manufacturer: Cypress Semiconductor Corp
• Series: EZ-USB FX1™r

Specifications of CY7C64714-56PVXC

• Applications: USB Microcontroller
• Core Processor: 8051
• Program Memory Type: ROMless
• Controller Series: CY7C647xx
• Ram Size: 16K x 8
• Interface: I²C, USB, USART
• Number Of I /o: 24
• Voltage - Supply: 3.15 V ~ 3.45 V
• Operating Temperature: 0°C ~ 70°C
• Mounting Type: Surface Mount
• Package / Case: 56-SSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

10.3
Table 10-2. Data Memory Read Parameters
Document #: 38-08039 Rev. *C
t
t
t
t
t
t
t
t
When using the AUTPOPTR1 or AUTOPTR2 to address external memory, the address of AUTOPTR1 will only be active while
either RD# or WR# are active. The address of AUTOPTR2 will be active throughout the cycle and meet the above address valid
time for which is based on the stretch value.
Note:
16. t
CL
AV
STBL
STBH
SCSL
SOEL
DSU
DH
Parameter
t
t
t
t
ACC2
ACC2
ACC2
ACC3
ACC3
CLKOUT
Data Memory Read
(24 MHz) = 3*t
(48 MHz) = 3*t
(24 MHz) = 5*t
(48 MHz) = 5*t
CLKOUT
and t
ACC3
A[15..0]
A[15..0]
[14]
D[7..0]
D[7..0]
are computed from the above parameters as follows:
[14]
1/CLKOUT Frequency
Delay from Clock to Valid Address
Clock to RD LOW
Clock to RD HIGH
Clock to CS LOW
Clock to OE LOW
Data Setup to Clock
Data Hold Time
OE#
RD#
RD#
CS#
CS#
CL
CL
CL
CL
– t
– t
– t
– t
AV
AV
AV
AV
– t
– t
– t
– t
DSU
DSU
DSU
DSU
t
t
AV
AV
t
t
CL
CL
= 106 ns
= 43 ns
= 190 ns
= 86 ns.
Description
Figure 10-2. Data Memory Read Timing Diagram
t
STBL
t
t
ACC1
SCSL
t
SOEL
[16
Stretch = 0
Stretch = 1
t
data in
DSU
t
ACC1
Min.
[16]
9.6
t
0
STBH
t
DH
20.83
41.66
Typ.
83.2
t
AV
t
data in
DSU
Max.
10.7
11.1
13
11
11
t
DH
CY7C64713/14
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Page 31 of 50
48 MHz
24 MHz
12 MHz
Notes