CY7C955-NC Cypress Semiconductor Corp, CY7C955-NC Datasheet - Page 62

• Manufacturer Part Number: CY7C955-NC
• Manufacturer: Cypress Semiconductor Corp

Specifications of CY7C955-NC

• Lead Free Status / RoHS Status: Not Compliant

Switching Characteristics
t
t
t
t
t
f
t
t
t
t
f
t
t
f
t
t
t
t
f
t
t
t
t
t
t
t
f
t
t
Notes:
HWL
HWD
HWA
PW
Line Interface (Receive Side) Timing
R
R
SDC
HCD
Receive Side Alarm Timing
DCR
Line Interface (Transmit Side) Timing
T
T
DTO
DTD
UTOPIA Interface (Receive Side) Timing [TSEN = 0]
RF
RF
SRC
HCR
DCD
UTOPIA Interface (Receive Side) Timing [TSEN = 1]
RF
RF
SRC
HCR
DCA
DCD
DCT
GFC (RECEIVE SIDE) TIMING
DCG
UTOPIA INTERFACE (TRANSMIT SIDE) TIMING
TF
TF
STC
8.
9.
Parameter
Not Tested.
See description on Receive Clock Recovery (RCR) page 10
Write to Address Latch Enable Hold
Write to Data Invalid Hold
Write to Address Invalid Hold
Write Pulse Width
RRCLK± Duty Cycle
RRCLK± Frequency Tolerance
RXD± Stable to RRCLK± Rising Edge Setup Time. R
RRCLK± State Change to RXD Unstable Hold Time. R
RCLK HIGH to RALM or RFP Valid Delay
TRCLK± Duty Cycle
TRCLK± Frequency Tolerance
TCLK HIGH to TFPO Valid Delay
TXC± LOW to TXD± Valid Delay
RFCLK Frequency
RFCLK Duty Cycle
RRDENB Stable to RFCLK HIGH Set-Up
RFCLK HIGH to RRDENB Unstable Hold
RFCLK HIGH to RSOC / RCA / RXPRTY / RDAT [7:0] Valid Delay
RFCLK Frequency
RFCLK Duty Cycle
RRDENB Stable to RFCLK HIGH Set-Up
RFCLK HIGH to RRDENB Unstable Hold
RFCLK HIGH to RCA Valid Delay
RFCLK HIGH to RSOC / RXPRTY / RDAT [7:0] Valid Delay
RFCLK HIGH to RSOC / RXPRTY / RDAT [7:0] Three-state Delay
RCLK HIGH to RGFC / RCP Valid Delay
TFCLK Frequency
TFCLK Duty Cycle
TWRENB / TDAT[7:0] / TXPRTY / TSOC Stable to TFCLK HIGH Set-Up
Over the Operating Range (continued)
PRELIMINARY
Description
[8, 9]
19.44 MHz or 6.48 MHz
(RBYP = 0)
19.44 MHz or 6.48 MHz
(TBYP = 0)
62
BYP
BYP
= 1
= 1
–250
Min.
40
30
250
30
–2
40
10
40
10
40
10
5
5
5
2
1
2
3
1
2
1
2
2
2
1
Max.
250
250
70
20
70
20
33
60
20
33
60
20
20
20
10
33
60
2
CY7C955
MHz
MHz
MHz
Unit
ppm
ppm
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
%
%
%
%