CY7C421-20JXC Cypress Semiconductor Corp, CY7C421-20JXC Datasheet - Page 6

• Manufacturer Part Number: CY7C421-20JXC
• Description: IC ASYNC FIFO MEM 512X9 32-PLCC
• Manufacturer: Cypress Semiconductor Corp
• Series: CY7Cr

Specifications of CY7C421-20JXC

• Access Time: 10ns
• Memory Size: 4.6K (512 x 9)
• Package / Case: 32-PLCC
• Function: Asynchronous
• Data Rate: 50MHz
• Voltage - Supply: 3.3V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Number Of Circuits: 2
• Data Bus Width: 9 bit
• Bus Direction: Unidirectional
• Timing Type: Asynchronous
• Organization: 512 K x 9
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Maximum Operating Current: 55 mA
• Maximum Operating Temperature: + 70 C
• Minimum Operating Temperature: 0 C
• Mounting Style: SMD/SMT
• Configuration: Dual
• Density: 4.5Kb
• Access Time (max): 20ns
• Word Size: 9b
• Sync/async: Asynchronous
• Expandable: Yes
• Package Type: PLCC
• Clock Freq (max): Not RequiredMHz
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Supply Current: 55mA
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Mounting: Surface Mount
• Pin Count: 32
• Rohs Compliant: YES
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 428-2911-5; CY7C421-20JXC

Switching Characteristics
Document #: 38-06001 Rev. *C
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
RC
A
RR
PR
LZR
DVR
HZR
WC
PW
HWZ
WR
SD
HD
MRSC
PMR
RMR
RPW
WPW
RTC
PRT
RTR
EFL
HFH
FFH
REF
RFF
WEF
WFF
WHF
RHF
RAE
RPE
WAF
WPF
XOL
XOH
Parameter
[6,9]
[6,9,10]
[9,10]
[6,9]
Read Cycle Time
Access Time
Read Recovery Time
Read Pulse Width
Read LOW to Low Z
Data Valid After Read HIGH
Read HIGH to High Z
Write Cycle Time
Write Pulse Width
Write HIGH to Low Z
Write Recovery Time
Data Set-Up Time
Data Hold Time
MR Cycle Time
MR Pulse Width
MR Recovery Time
Read HIGH to MR HIGH
Write HIGH to MR HIGH
Retransmit Cycle Time
Retransmit Pulse Width
Retransmit Recovery Time
MR to EF LOW
MR to HF HIGH
MR to FF HIGH
Read LOW to EF LOW
Read HIGH to FF HIGH
Write HIGH to EF HIGH
Write LOW to FF LOW
Write LOW to HF LOW
Read HIGH to HF HIGH
Effective Read from Write HIGH
Effective Read Pulse Width After EF HIGH
Effective Write from Read HIGH
Effective Write Pulse Width After FF HIGH
Expansion Out LOW Delay from Clock
Expansion Out HIGH Delay from Clock
Description
Over the Operating Range
[7, 8]
Min
40
10
30
40
30
10
18
40
30
10
30
30
40
30
10
30
30
(continued)
3
5
5
0
–30
Max
30
20
40
40
40
30
30
30
30
30
30
30
30
30
30
Min
50
10
40
50
40
10
20
50
40
10
40
40
50
40
10
40
40
3
5
5
0
–40
Max
40
20
50
50
50
35
35
35
35
35
35
35
35
40
40
CY7C419/21/25/29/33
Min
80
15
65
80
65
15
30
80
65
15
65
65
80
65
15
65
65
3
5
5
0
–65
Max
65
20
80
80
80
60
60
60
60
60
60
60
60
65
65
Page 6 of 17
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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